CSTCR7M37G53A-R0 [MURATA]

Resonators 7.370MHZ .5% CHIP RESONATOR;
CSTCR7M37G53A-R0
型号: CSTCR7M37G53A-R0
厂家: muRata    muRata
描述:

Resonators 7.370MHZ .5% CHIP RESONATOR

晶体 谐振器
文件: 总32页 (文件大小:1470K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
P17E.pdf  
2015.12.25  
®
Ceramic Resonators (CERALOCK )  
Application Manual  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
Introduction  
Ceramic resonators (CERALOCK®) are made of high  
stability piezoelectric ceramics that function as a  
mechanical resonator.  
This device has been developed to function as a  
reference signal generator and the frequency is  
primarily adjusted by the size and thickness of the  
ceramic element.  
With the advance of the IC technology, various  
e q u i p m e n t m ay b e c o n t ro l l e d by a s i n g l e  
LSI integrated circuit, such as the one-chip  
microprocessor.  
CERALOCK® can be used as the timing element in  
most microprocessor based equipment.  
In the future, more and more applications will use  
CERALOCK® because of its high stability non-  
adjustment performance, miniature size and cost  
savings. Typical applications include TVs, VCRs,  
automotive electronic devices, telephones, copiers,  
cameras, voice synthesizers, communication  
equipment, remote controls and toys.  
This manual describes CERALOCK® and will assist you  
in applying it effectively.  
CERALOCK® is the brand name of these MURATA  
products.  
EU RoHS Compliant  
All the products in this catalog comply  
with EU RoHS.  
EU RoHS is "the European Directive  
2011/65/EU on the Restriction of the  
Use of Certain Hazardous Substances in  
Electrical and Electronic Equipment."  
For more details, please refer to our  
website 'Murata's Approach for EU RoHS'  
(http://www.murata.com/en-  
eu/support/compliance/rohs).  
                                                                           
……………………………………  
                                                                                             
………  
ꢀ ……  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
1
2
3
4
5
6
7
8
Contents  
Product specifications are as of  
December 2015.  
Characteristics and Types of CERALOCK®  
1
®ꢀ ……  
p2  
p3  
p3  
1. General Characteristics of CERALOCK  
®ꢀ ……………………………  
2. Types of CERALOCK  
MHz Band lead CERALOCK® (CSTLS Series)  
ꢀ ………………  
MHz Band Chip CERALOCK®  
(CSACW/CSTCC/CSTCR/CSTCE/CSTCW Series)  
p4  
ꢀ …………  
Principles of CERALOCK®  
2
p6  
p9  
……………………  
1. Equivalent Circuit Constants  
………………………  
2. Basic Oscillation Circuits  
Specifications of CERALOCK®  
3
p12  
p12  
p14  
p15  
ꢀ…………………………  
1. Electrical Specifications  
Electrical Specifications of MHz Band Lead CERALOCK®  
(CSTLS Series)  
Electrical Specifications of MHz Band Chip CERALOCK®  
ꢀ ……………………………………………  
(CSACW Series) (CSTCC/CSTCR/CSTCE/CSTCW Series)  
ꢀ …  
2. Mechanical and Environmental  
®ꢀ ……………………  
Specifications of CERALOCK  
4
5
6
Applications of Typical Oscillation Circuits  
1. Cautions for Designing Oscillation Circuits  
ꢀ …  
2. Application to Various Oscillation Circuits  
p17  
p18  
p18  
p19  
ꢀ …  
ꢀ……………………  
Application to C-MOS Inverter  
ꢀ …………………  
Application to H-CMOS Inverter  
Characteristics of CERALOCK® Oscillation Circuits  
p20  
ꢀ ……………  
1. Stability of Oscillation Frequency  
p21  
p22  
p23  
2. Characteristics of the Oscillation Level  
3. Characteristics of Oscillation Rise Time  
4. Starting Voltage  
Application Circuits to Various ICs/LSIs  
p24  
p27  
p27  
p27  
ꢀ ………………  
1. Application to Microcomputers  
ꢀ……………  
2. Application to Remote Control ICs  
3. Application to ICs for Office Equipment  
4. Other Kinds of Applications to Various ICs  
ꢀ ……  
ꢀ …  
7
8
p28  
p29  
ꢀ …………………………………………………  
Notice  
Appendix  
®ꢀ ……  
Equivalent Circuit Constants of CERALOCK  
Please check the MURATA website (http://www.murata.com/)  
if you cannot find the part number in the catalog.  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
Characteristics and Types of CERALOCK®  
RoHS  
1
1
®ꢀ  
1. General Characteristics of CERALOCK  
Ceramic resonators use the mechanical resonance of  
piezoelectric ceramics. (Generally, lead zirconium titanate:  
PZT.)  
The oscillation mode varies with resonant frequency.  
The table on the right shows this relationship.  
As a resonator device, Crystal Unit is well-known. RC  
oscillation circuits and LC oscillation circuits are also used  
to produce electrical resonance. The following are the  
characteristics of CERALOCK®.  
High stability of oscillation frequency:  
Oscillation frequency stability is between that of Crystal  
Units and LC or RC oscillation circuits.  
The temperature coefficient of Crystal Units is 10–6/ °C  
maximum and approximately 10–3 to 10–4/°C for LC or  
RC oscillation circuits. For comparison these, it is 10–5/°C  
at –20 to +80°C for ceramic resonators.  
Vibration Mode and Frequency Range  
Frequency (Hz)  
Vibration Mode  
1k 10k 100k 1M 10M100M 1G  
1
Flexural  
mode  
2
Length  
mode  
3
Area  
expansion  
mode  
4
Radius  
vibration  
5
Shear  
thickness  
mode  
6
Thickness  
expansion  
mode  
7
Small configuration and light weight:  
The ceramic resonator is half the size of popular Crystal  
Units.  
Surface  
acoustic  
wave  
[Note] : ←→show the direction of vibration  
Low price, non-adjustment:  
CERALOCK® is mass produced, resulting in low cost and  
high stability.  
Unlike RC or LC circuits, ceramic resonators use  
mechanical resonance. This means it is not basically  
affected by external circuits or by the fluctuation of the  
supply voltage.  
Highly stable oscillation circuits can therefore be made  
without the need of adjustment.  
The table briefly describes the characteristics of various  
oscillator elements.  
Characteristics of Various Oscillator Elements  
Oscillation  
Long-  
term  
Adjust-  
ment  
Frequency  
Initial  
Name  
Symbol  
Price  
Size  
Stability  
Tolerance  
lower  
cost  
LC  
Big  
Required ±2.0%  
Required ±2.0%  
Fair  
Fair  
lower  
cost  
CR  
Small  
Big  
Crystal  
Unit  
Expen-  
sive  
Not  
±
Excellent  
required 0.001%  
Ceramic  
Resonator  
Inexpen-  
sive  
Not  
required  
Small  
±0.5Excellent  
2
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
1
2.ꢀTypesꢀofꢀCERALOCK®  
Part Numbers and Dimensions of lead CERALOCK®  
(CSTLS Series)  
MHz Band lead CERALOCK® (CSTLS Series)  
Part Number  
Frequency  
Dimensions (in mm)  
As CSTLS series does not require externally mounted capac-  
itors, the number of components can be reduced, allowing  
circuits to be made more compact.  
The table shows the frequency range and appearance of the  
CSTLS  
CSTLS  
G
X
3.40–10.00MHz  
three-terminal CERALOCK® with built-in load capacitance.  
Part Numbering  
(Ex.)  
CS  
T
LS 4M00  
G
5
3
-A0  
16.00–  
70.00MHz  
Product ID  
Frequency/Built-in Capacitance  
Structure/Size  
16.0032.99MHz : 3.5  
LS: Round Lead Type  
Nominal Center Frequency  
Type  
G: Thickness Shear vibration,  
X: Thickness Longitudinal Vibration (3rd overtone)  
Frequency Tolerance  
1: ±0.1%, 2: ±0.2%, 3: ±0.3%, 5: ±0.5%, D: DTMF,  
Z: Others  
Built-in Load capacitance  
1: 5pF, 3: 15pF, 4: 22pF, 5: 30pF, 6: 47pF  
Individual Specification  
With standard products, "Individual Specification"  
is omitted, and "Package Specification Code" is  
carried up.  
Packaging  
–B0: Bulk,  
–A0: Radial Taping H0=18mm Ammo Pack (Standard)  
3
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
1
Dimensions and Standard Land Pattern of Chip  
MHz Band Chip CERALOCK® (CSACW/CSTCC/  
CSTCR/CSTCE/CSTCW Series)  
The MHz band Chip CERALOCK® has a wide frequency range  
and small footprint to meet further downsizing and high-  
density mounting requirements.  
CERALOCK® (CSACW Series)  
Dimensions  
Part Number  
Frequency (MHz)  
Standard Land Pattern (in mm)  
The table shows the dimensions and two-terminals standard  
land patterns of the CERALOCK® CSACW series.  
The second table shows the dimensions and three-terminals  
standard land patterns of CSTCC/CSTCR/CSTCE/CSTCW  
series chip resonator (built-in load capacitance type.) The  
carrier tape dimensions of CSTCR series are shown on the  
next page.  
0.5  
0.5  
2  
CSACW  
X
20.01–70.00  
2.0  
1 Thickness varies with frequency.  
2 Conformal coating or washing of the components is not acceptable  
because they are not heretically sealed.  
Part Numbering  
(Ex.)  
CS  
T
CR 4M00  
G
5
3
-R0  
Product ID  
Frequency/No capacitance built-in  
A: No Capacitance Built-in, T: Built-in Capacitance  
Structure/Size  
CC/CR/CE/CN/CM: Cap Chip Type, CW: Monolithic  
Chip Type  
Nominal Center Frequency  
Type  
G: Thickness Shear Vibration,  
V: Thickness Longitudinal Vibration,  
X: Thickness Longitudinal Vibration (3rd overtone)  
Frequency Tolerance  
1: ±0.1%, 2: ±0.2%, 3: ±0.3%, 5: ±0.5%, Z: Others  
Load Capacitance Value  
(In case of CSACW, CSACN and CSACM value is for  
external capacitance of  
standard circuit)  
1: 5pF or 6pF, 2 : 10pF, 3: 15pF, 5: 33pF or 39pF,  
6: 47pF  
Individual Specification  
With standard products, "Individual Specification"  
is omitted, and "Package Specification Code" is  
carried up.  
Packaging  
–B0: Bulk,  
–R0: Plastic Taping φ180mm Reel Package  
4
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
1
Dimensions of Carrier Tape for Chip CERALOCK®  
Dimensions and Standard Land Pattern of Chip  
CERALOCK® (CSTCC/CSTCR/CSTCE/CSTCW Series)  
CSTCR Series  
Dimensions  
4.0 0.ꢀ  
Part Number  
Frequency (MHz)  
+0.ꢀ  
-0  
øꢀ.ꢁ  
Standard Land Pattern (in mm)  
2.0 0.0ꢁ  
1  
2  
2  
2  
1.2 1.2 1.4 1.2 1.2  
CSTCC  
CSTCC  
CSTCC  
CSTCE  
CSTCW  
G
G
G
2.00–3.99  
+0.ꢀ  
-0  
2.2 0.ꢀ  
øꢀ.ꢁ  
4.0 0.ꢀ  
The cover film peel strength force 0.ꢀ to 0.7N  
The cover film peel speed 300mm/min.  
(3˚)  
2.5  
2.5  
Cover Film  
ꢀ0˚  
Direction of Feed  
(in mm)  
0.8 0.7 0.8 0.7 0.8  
4.00–7.99  
8.00–13.99  
14.00–20.00  
20.01–70.00  
0.4  
1.5  
0.4  
1.5  
0.4  
0.4 0.8 0.4 0.8 0.4  
1.2  
1.2  
0.3 0.65 0.3 0.65 0.3  
2  
V
0.95  
0.95  
1  
0.5 0.5 0.5 0.5 0.5  
2  
X
1.0  
1.0  
1 Thickness varies with frequency.  
2 Conformal coating or washing of the components is not acceptable  
because they are not hermetically sealed.  
5
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
2 Principles of CERALOCK®  
RoHS  
1. Equivalent Circuit Constants  
2
Fig. 2-1 shows the symbol for a ceramic resonator. The  
impedance and phase characteristics measured between  
the terminals are shown in Fig. 2-2. This illustrates that the  
resonator becomes inductive in the frequency zone between  
the frequency Fr (resonant frequency), which provides the  
minimum impedance, and the frequency Fa (anti-resonant  
frequency), which provides the maximum impedance.  
It becomes capacitive in other frequency zones. This means  
that the mechanical vibration of a two-terminal resonator  
can be replaced equivalently with a combination of series  
and parallel resonant circuits consisting of an inductor : L, a  
capacitor : C, and a resistor : R. In the vicinity of the specific  
frequency (Refer to Note 1 on page 8), the equivalent circuit  
can be expressed as shown in Fig. 2-3.  
Symbol  
Impedance between Two Terminals Z=R+jx  
(R : Real Component, X : Impedance Component)  
Phase φ =tan-1X/R  
Fig. 2-1 Symbol for the Two-Terminal CERALOCK®  
105  
104  
103  
102  
Fr and Fa frequencies are determined by the piezoelectric  
ceramic material and the physical parameters. The  
equivalent circuit constants can be determined from the  
following formulas. (Refer to Note 2 on page 8)  
10  
Fr  
Fa  
Frequency (kHz)  
(2-1)  
(2-2)  
(2-3)  
Fr=1/2π L1C1  
Fa=1/2π L1C1C0/(C1+C0)=Fr 1+C1/C0  
Qm=1/2πFrC1R1  
90  
0
(Qm : Mechanical Q)  
Considering the limited frequency range of FrFFa, the  
impedance is given as Z=Re+jωLe (Le0) as shown in Fig.  
2-4, and CERALOCK® should work as an inductance Le (H)  
having the loss Re (Ω).  
-90  
Fig. 2-2 Impedance and Phase Characteristics of  
CERALOCK®  
L1  
C1  
R1  
C0  
1
1
R
: Equivalent Resistance  
L
: Equivalent Inductance  
1
0
C
C
: Equivalent Capacitance  
: Parallel Equivalent Capacitance  
Fig. 2-3 Electrical Equivalent Circuit of CERALOCK®  
Re  
Le  
Re : Effective Resistance  
Le : Effective Inductance  
Fig. 2-4 Equivalent Circuit of CERALOCK®  
in the Frequency Band FrFFa  
6
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
The table on this page shows a comparison of the equivalent  
constants between CERALOCK® and  
Crystal Units.  
In comparison, there is a large difference in capacitance and  
Qm, which results in the difference of oscillating conditions,  
when actually operated.  
CSTLS4M00G53–B0  
2
1M  
Main Vibration  
100k  
10k  
3rd Vibration  
The table in the appendix shows the standard values of an  
equivalent circuit constant for each type of CERALOCK®.  
Furthermore, other higher harmonic modes exist, other than  
the desired oscillation mode. These other oscillation modes  
exist because the ceramic resonator uses mechanical  
resonance.  
1k  
100  
10  
1
Fig. 2-5 shows those characteristics.  
0
10  
20  
30  
40  
Frequency (MHz)  
Fig. 2-5 Spurious Characteristics of CERALOCK®  
Comparison of Equivalent Circuits of CERALOCK® and Crystal Unit (Reference)  
Oscillation  
Resonator  
L1 (μH)  
C1 (pF)  
C0 (pF)  
R1 (Ω)  
Qm  
475  
1220  
775  
298869  
240986  
59600  
dF (kHz)  
Frequency  
2.00MHz  
4.00MHz  
8.00MHz  
2.457MHz  
4.00MHz  
8.00MHz  
1.71×103  
0.46×103  
0.13×103  
7.20×105  
2.10×105  
1.80×105  
4
3.8  
3.5  
0.005  
0.007  
0.002  
20.8  
19.8  
19.9  
2.39  
2.39  
4.48  
43.9  
9
8
37  
22.1  
154.7  
177.2  
350.9  
641.6  
3
6
2
CERALOCK®  
Crystal Unit  
7
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
2
Notes  
(Note 1)  
(Note 2)  
The relationship between the size of the resonator and the  
resonant frequency is described as follows. For example,  
the frequency doubles if the thickness doubles, when  
thickness vibration is used.  
The following relationship is obtained when the length  
of the resonators is , the resonance frequency is Fr, the  
speed of sound waves travelling through piezoelectric  
ceramics, and the wavelength isλ.  
In Fig. 2-3, when resistance R1 is omitted for simplification,  
the impedance Z (ω) between two terminals is expressed  
by the following formula.  
1
1
( jωL1+  
)
jωC0  
jωC1  
Z (ω) =  
1
jωC0  
1
+ ( jωL1+  
)
jωC1  
1
)
j ( ωL1 – ωC1  
=
Fr= Const.  
(frequency constant, Frt for the thickness)  
ꢁλ = 2ℓ  
C0  
2
1 +  
ω C0L1  
C1  
1
L1C1  
When ω =  
When ω =  
= ωr, Z (ωr) =0  
C = Frλ = 2Frℓ  
1
= ωa, Z (ωa) = ∞  
As seen in the above formula, the frequency constant  
determines the size of the resonator.  
C0C1L1/(C0+C1)  
Therefore from ω =2πF,  
1
Fr = ωr/2π =  
2π L1C1  
=λ/2  
1
C1  
C0  
Fa = ωa/2π=  
= Fr 1+  
2π C0C1L1/(C0+C1)  
Amplitude  
Range of  
Standing  
Wave  
L1  
C1  
(Min.Amplitude) (Max.Amplitude)  
C0  
Fig.Ⅰ  
Fig. Ⅱ  
8
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
2. Basic Oscillation Circuits  
Generally, basic oscillation circuits can be grouped into the  
2
following 3 categories.  
Use of positive feedback  
Use of negative resistance element  
L2  
L1  
CL1  
CL2  
Use of delay in transfer time or phase  
In the case of ceramic resonators, Crystal Units, and LC  
oscillators, positive feedback is the circuit of choice.  
Among the positive feedback oscillation circuit using an LC,  
the tuning type anti-coupling oscillation circuit, Colpitts and  
Hartley circuits are typically used.  
L
C
Colpitts Circuit  
Hartley Circuit  
Fig. 2-6 Basic Configuration of LC Oscillation Circuit  
See Fig. 2-6.  
In Fig. 2-6, a transistor, which is the most basic amplifier, is  
used.  
Amplifier  
The oscillation frequencies are approximately the same as  
the resonance frequency of the circuit consisting of L, CL1  
and CL2 in the Colpitts circuit or consisting of L1, L2 and C in  
the Hartley circuit. These frequencies can be represented by  
the following formulas. (Refer to Note 3 on page 11.)  
Mu Factor : α  
Phase Shiꢀ : θ1  
Feedback Circuit  
Feedback Ratio : β  
2
Phase Shiꢀ : θ  
(Colpitts Circuit)  
1
fosc. =  
(2-4)  
(2-5)  
CL1 · CL2  
CL1 + CL2  
Oscillation Conditions  
L・  
Loop Gain G =α·β≧1  
Phase Shiftθ=θ +θ = 360°× n  
1
2
(Hartley Circuit)  
Fig. 2-7 Principle of Oscillation  
1
fosc. =  
C(L1 + L2)  
In an LC network, the inductor is replaced by a ceramic  
resonator, taking advantage of the fact that the resonator  
becomes inductive between resonant and anti-resonant  
frequencies.  
This is most commonly used in the Colpitts circuit.  
The operating principle of these oscillation circuits can  
be seen in Fig. 2-7. Oscillation occurs when the following  
conditions are satisfied.  
Loop Gain G =α・β 1  
Phase Amount  
θ=θ +θ = 360°× n (n = 1, 2,)  
(2-6)  
1
2
In Colpitts circuit, an inverter ofθ1 = 180°is used, and it is  
inverted more thanθ = 180°with L and C in the feedback  
2
circuit. The operation with a ceramic resonator can be  
considered the same.  
9
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
It is common and simple to utilize an inverter for the Colpitts  
circuit with CERALOCK®.  
Fig. 2-8 shows the basic oscillation circuit with inverter.  
In an open loop circuit by cutting at point , it is possible to  
measure loop gain G and phase shiftθ.  
α(θ1)  
2
Rf  
A
Fig. 2-9 shows the actual measuring circuit, and an example  
of the measuring result is shown in Fig. 2-10.  
®
CERALOCK  
CL1  
CL2  
β(θ2)  
Fig. 2-8 Basic Oscillation Circuit with Inverters  
α(θ1)  
IC  
β(θ2)  
CERALOCK®  
Zin1MΩ//8pF  
Z0=50Ω  
Rf  
Vector  
Volt  
Meter  
C2 C1  
Vin  
S.S.G  
Loop Gain : G=α·β  
Phase Shift : θ +θ  
1
2
Fig. 2-9 Measuring Circuit Network of Loop Gain and Phase  
Shift  
40  
30  
180  
90  
0
Phase  
Gain  
(Oscillation)  
20  
10  
0
-10  
-20  
-30  
-40  
CERALOCK®  
-90  
CSTLS4M00G53–B0  
VDD=+5V  
CL1=CL2=15pF  
IC : TC4069UBPꢁꢁ  
ꢁꢁ(TOSHIBA)  
-180  
180  
3.80  
3.90  
4.00  
4.10  
4.20  
Frequency (MHz)  
40  
90  
Phase  
Gain  
(No Oscillation)  
0
0
CERALOCK®  
-90  
-180  
CSTLS4M00G53–B0  
VDD=+2V  
CL1=CL2=15pF  
IC : TC4069UBPꢁꢁ  
ꢁꢁ(TOSHIBA)  
-40  
3.80  
3.90  
4.00  
4.10  
4.20  
Frequency (MHz)  
Fig. 2-10 Measured Results of Loop Gain and Phase Shift  
10  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
2
Notes  
(Note 3)  
As i1 0, i2 0, i3 0 are required for continuous  
oscillation, the following conditional formula can be  
performed by solving the formulas of (1), (2) and (3) on  
the current.  
Fig.shows the equivalent circuit of an emitter grounding  
type transistor circuit. In the figure, Ri stands for input  
impedance, R0 stands for output impedance and ß stands  
for current amplification rate.  
When the oscillation circuit in Fig.2-6 is expressed by  
using the equivalent circuit in Fig., it becomes like Fig.  
. Z1, Z2 and Z are as shown in the table for each Hartley  
type and Colpitts type circuit.  
ꢁβR0Z1Z2=(Z1+Ri)Z22–{Z1(Z2+Z)+  
(Z2+Z+Z1)Ri}(Z2+R0) ………………… (4)  
Then, as Z1, Z2 and Z are all imaginary numbers, the  
following conditional formula is obtained by dividing the  
formula (4) into the real number part and the imaginary  
number part.  
The following 3 formulas are obtained based on Fig..  
i1  
R0  
(Imaginary number part)  
-
ꢁꢁZ1Z2Z+(Z1+Z2+Z)RiR0=0 …………………… (5)  
(Real number part)  
βR0i1  
Ri  
+
βR0Z1Z2+Z1(Z+Z2)R0+  
ꢁꢁZ2(Z+Z1)Ri=0…………………………………… (6)  
Fig.Ⅲ  
Formula (5) represents the phase condition and formula (6)  
represents the power condition.  
Oscillation frequency can be obtained by applying the  
elements shown in the aforementioned table to Z1, Z2 and  
Z solving it for angular frequency ω.  
Z
R0  
-
i1  
i2  
i3  
i1  
βR0i1  
Ri  
+
Z2  
Z1  
(Hartley Type)  
1
ω2osc(2πfosc.) 2  
L1 · L2  
Hartley Type  
jωL1  
jωL2  
1jωC  
Colpitts Type  
1jωCL1  
1jωCL2  
jωL  
(L1L2) C{1+  
}
(L1 + L2) CRiR0  
Z1  
Z2  
Z
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁ ………………… (7)  
(Colpitts Type)  
ω2osc(2π fosc.) 2=  
Fig.Hartley/Colpitts Type LC Oscillation Circuits  
1
L
· {1+  
}
(CL1+CL2) RiR0  
CL1·CL2  
CL1+CL2  
L
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁ ………………… (8)  
ꢁβ R0i1+(R0+Z2) i2–Z2i3=0………………………… (1)  
Z1i1+Z2i2–(Z2+Z+Z1) i3=0 ……………………… (2)  
(Z1+Ri) i1–Z1i3=0 ………………………………… (3)  
In either circuit, the term in brackets will be 1 as long as  
Ri and R0 is large enough. Therefore oscillation frequency  
can be obtained by the following formula.  
1
(Hartley Type)  
fosc. =  
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁ ꢁꢁꢁ …… (9)  
2π (L1+L2)C  
1
(Colpitts Type)  
fosc. =  
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁ…(10)  
CL1· CL2  
CL1+CL2  
2π  
L・  
11  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
®
RoHS  
3
Specifications of CERALOCK  
1. Electrical Specifications  
The frequency stability of CERALOCK® is between that of  
Crystal Units and LC or RC oscillators. Temperature stability  
is ±0.3 to ±0.5% against initial values within -20 to +80  
°C. The initial frequency precision is ±0.5% for standard  
products. The frequency of the standard CERALOCK®  
is adjusted by the standard measuring circuit, but the  
oscillation frequency may shift when used in the actual IC  
circuit. Usually, if the frequency precision needed for clock  
signal of a 1 chip microcomputer is approximately ±2 to 3%  
under working conditions, CERALOCK® standard type can be  
used in most cases. If exact oscillation frequency is required  
for a special purpose, Murata can manufacture the ceramic  
resonator for the desired frequency.  
3
The following are the general electrical specifications of  
CERALOCK®. (As for the standard measuring circuit of  
oscillation frequency, please refer to the next chapter  
Application to Typical Oscillation Circuits.)  
Resonant Impedance Specifications of CSTLS/ Series  
Electrical Specifications of MHz Band Lead  
CERALOCK® (CSTLS Series)  
Frequency Range  
(MHz)  
Resonant Impedance  
Type  
(Ω max.)  
Electrical specifications of CSTLS series are shown in the  
tables. Please note that oscillation frequency measuring  
circuit constants of the CSTLS G56 series (with H-CMOS  
IC) depends on frequency.  
3.40 3.99  
4.00 7.99  
8.00 10.00  
16.00 32.99  
33.00 50.00  
50  
30  
25  
50  
40  
CSTLSG  
CSTLSX  
MHz band three-terminal CERALOCK® (CSTLS Series) is  
built-in load capacitance.  
Fig. 3-1 shows the electrical equivalent circuit.  
The table shows the general specifications of the CSTLS  
series. Input and output terminals of the three-terminal  
CERALOCK® are shown in the table titled Dimensions of  
CERALOCK® CSTLS series in Chapter 1 on page 6.  
But connecting reverse, the oscillating characteristics are  
not affected except that the frequency has a slight lag.  
CSTLS Series  
Fig. 3-1 Symbol for the Three-Terminal CERALOCK®  
12  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
General Specifications CSTLS Series  
Frequency  
Initial Tolerance  
of Oscillation  
Frequency  
Item  
Temperature Stability of  
Oscillation Frequency  
Oscillating  
Frequency Aging  
Standard Circuit for  
Oscillation Frequency  
Range  
(-20 to +80°C)  
Part Number  
(MHz)  
VDD  
±0.2%1  
±0.2%  
±0.2%  
±0.2%  
IC  
IC  
CSTLSG53/56  
CSTLSX  
3.4010.00  
±0.5%  
±0.5%  
Output  
1MΩ  
X
3
Rd  
(1)  
2  
(3)  
IC : TC4069UBP3  
16.0050.00  
VDD : +5V  
C1  
C2  
(2)  
X : CERALOCK®  
Rd : 680Ω4  
1 This value varies for built-in Capacitance  
2 If connected conversely, a slight frequency lag may occur.  
3 G56/X series : TC74HCU04(TOSHIBA)  
4 This resistance value applies to the CSTLSG56 series.  
13  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
Resonant Impedance of CSTCC/CSTCR/CSTCE/  
Electrical Specifications of MHz Band Chip  
CERALOCK® (CSACW Series) (CSTCC/CSTCR/  
CSTCE/CSTCW Series)  
General specifications of chip CERALOCK® (CSACW series)and  
(CSTCC/CSTCR/CSTCE/CSTCW series) are shown in the tables  
respectively.  
CSTCW/CSACW Series  
Frequency Range  
Resonant Impedance  
Type  
(MHz)  
(Ω max.)  
2.002.99  
3.003.99  
4.005.99  
6.007.99  
8.0010.00  
10.0113.990  
14.0020.000  
20.0124.990  
25.0029.990  
30.0060.000  
60.0170.000  
80  
50  
60  
50  
40  
30  
40  
80  
60  
50  
60  
CSTCCG  
CSTCRG  
3
CSTCEG  
CSTCEV  
CSACWX/CSTCWX  
General Specifications of CSACW Series  
Item  
Frequency  
Range  
(MHz)  
Initial Tolerance Temperature Stability of  
Oscillating  
Frequency  
Aging  
Standard Circuit for  
Oscillation Frequency  
of Oscillation  
Frequency  
Oscillation Frequency  
Part Number  
(-20 to +80  
°
C)  
VDD  
IC  
IC  
Output  
CSACWX53  
20.0124.99  
25.0070.00  
±0.5%  
±0.5%  
±0.2%  
±0.2%  
±0.1%  
1MΩ  
Rd  
X
CL1  
CL2  
CSACWX51  
±0.1%  
IC : TC74HCU04(TOSHIBA)(1)  
VDD : +5V  
X : Chip CERALOCK®  
CL1, CL2 : This value varies for frequency.  
1 X51 Series (60.0170.00MHz); SN74AHCU04  
General Specifications of CSTCC/CSTCR/CSTCE/CSTCW Series  
Item  
Frequency  
Range  
(MHz)  
Initial Tolerance Temperature Stability of  
Oscillating  
Frequency  
Aging  
Standard Circuit for  
Oscillation Frequency  
of Oscillation  
Frequency  
Oscillation Frequency  
Part Number  
CSTCCG  
(-20 to +80  
°
C)  
±0.3%3  
±0.2%  
±0.2%  
±0.3%  
±0.2%  
±0.3%  
±0.1%  
±0.1%  
±0.3%  
±0.1%  
VDD  
2.003.99  
±0.5%  
±0.5%  
±0.5%  
±0.5%  
±0.5%  
IC  
IC  
Output  
CSTCRG  
CSTCEG  
CSTCEV  
CSTCWX  
4.007.99  
1MΩ  
2  
X
8.0013.99  
14.0020.00  
20.0170.00  
(1)  
(3)  
C1  
C2  
(2)  
IC : TC4069UBP1(TOSHIBA)  
DD : +5V  
V
X : Chip CERALOCK®  
1 V, X Series; TC74HCU04(TOSHIBA), X Series (50.0070.00MHz); SN74AHCU04(TI)  
2 If connected in the wrong direction, the above specification may not be guaranteed.  
3 This value varies for built-in Capacitance and Frequency.  
14  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
2. Mechanical and Environmental Specifications of CERALOCK®  
The tables show the standard test conditions of mechanical  
strength and environmental specifications of CERALOCK®.  
Fig. 3-2 shows the changes of oscillation frequency in each  
test, the table on the next page shows the criteria after the  
tests, and Fig. 3-3 shows the reflow soldering profile.  
3
Test Conditions for Standard Reliability of CERALOCK®  
Item  
Conditions  
cm to floor surface 3 times.  
a
1. Shock Resistance  
Measure after dropping from a height of  
b
c
Lead terminals are immersed up to 2.0 mm from the resonator's body in solder bath of  
resonator shall be measured after being placed in natural condition for 1 hour.1  
, and then the  
2. Soldering  
Heat Resistance  
Reflow profile show in Fig. 3-3 of heat stress is applied to the resonator, then the resonator shall be measured  
after being placed in natural condition for 1 hour.2  
3. Vibration Resistance Measure after applying vibration of 10 to 55Hz amplitude of 2 mm to each of 3 directions, X, Y, Z.  
e
Keep in a chamber with a temperature of  
measurement.  
and humidity of 90 to 95% for  
hours. Leave for 1 hour before  
d
4. Humidity Resistance  
5. Storage at  
e
Keep in a chamber at 85±2°C for  
hours. Leave for 1 hour before measurement.  
hours. Leave for 1 hour before measurement.  
High Temperature  
6. Storage at  
Low Temperature  
e
Keep in a chamber at  
°C for  
f
Keep in a chamber at -55°C for 30 minutes. After leaving at room temperature for 15 minutes, keep in a  
7. Temperature Cycling chamber at +85°C for 30 minutes, and then room temperature for 15 minutes. After 10 cycles of the above,  
measure at room temperature.  
8. Terminal Strength  
Apply 1 kg of static load vertically to each terminal and measure.1  
1 Applies to CERALOCK® Lead Type  
2 Applies to MHz Band Chip CERALOCK®  
1. CSTLS Series  
Type  
G
fosc.  
3.4010.00MHz  
a
100  
b
c
d
e
f
concrete  
350±10°C  
60±2°C  
1000  
55±2°C  
X
16.0050.00MHz  
100  
concrete  
350±10°C  
60±2°C  
1000  
55±2°C  
2. CSACW Series  
Type  
fosc.  
a
b
c
d
e
f
X
20.0150.00MHz  
100  
wooden plate  
60±2°C  
1000  
55±2°C  
3. CSTCC/CSTCR/CSTCE/CSTCW Series  
Type  
G
V
fosc.  
a
b
c
d
e
f
2.0013.99MHz  
14.0020.00MHz  
20.0170.00MHz  
100  
100  
100  
wooden plate  
wooden plate  
wooden plate  
60±2°C  
60±2°C  
60±2°C  
1000  
1000  
1000  
55±2°C  
55±2°C  
55±2°C  
X
15  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
1. Shock Resistance  
2. Solder Heat Resistance  
3. Vibration Resistance  
4. Humidity Resistance  
(%)  
0.1  
(%)  
0.1  
(%)  
0.1  
(%)  
0.1  
0.05  
0.05  
fosc. 0  
-0.05  
-0.1  
0.05  
fosc. 0  
-0.05  
-0.1  
0.05  
fosc. 0  
-0.05  
-0.1  
fosc. 0  
-0.05  
-0.1  
1000  
(time)  
before test  
a­er test  
before test  
a­er test  
before test  
a­er test  
100  
3
6. Storage at Low Temperature  
7. Temperature Cycling  
5. Storage at High Temperature  
8. Terminal Strength  
(%)  
0.1  
(%)  
0.1  
(%)  
0.1  
(%)  
0.1  
0.05  
fosc. 0  
-0.05  
-0.1  
0.05  
fosc. 0  
-0.05  
-0.1  
0.05  
fosc. 0  
-0.05  
-0.1  
0.05  
fosc. 0  
-0.05  
-0.1  
100  
1000  
(time)  
25  
100  
1000  
(time)  
50  
100  
before test  
a­er test  
(cycle)  
Fig. 3-2 General Changes of Oscillation Frequency in Each Reliability Test (CSTLS4M00G53–B0)  
Deviation after Reliability Test  
Item  
Oscillation Frequency  
Other  
Type  
Peak  
260  
245  
220  
Meets the individual  
specification of each  
product.  
within±0.2%*  
Every Series  
(from initial value)  
Heating  
(220∞C min.)  
180  
150  
CSTCC Series : within±0.3%  
Pre-heating  
(150 to 180∞C)  
Gradual  
Cooling  
60 to 120s  
30 to 60s  
Fig. 3-3 Reflow Soldering Profile for MHz Band Chip  
CERALOCK®  
16  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
RoHS  
4
Applications of Typical Oscillation Circuits  
As described in Chapter 2, the most common oscillation  
circuit with CERALOCK® is to replace L of a Colpitts circuit  
with CERALOCK®. The design of the circuit varies with  
the application and the IC being used, etc. Although the  
basic configuration of the circuit is the same as that of  
Crystal Units, the difference in mechanical Q results in the  
difference of the circuit constant.  
This chapter briefly describes the characteristics of the  
oscillation circuit and gives some typical examples.  
1. Cautions for Designing Oscillation Circuits  
It is becoming more common to configure the oscillation  
circuit with a digital IC, and the simplest way is to use an  
inverter gate.  
4
VDD  
INV.1  
INV.2  
Fig. 4-1 shows the configuration of a basic oscillation circuit  
with a C-MOS inverter.  
Output  
IC  
IC  
INV. 1 works as an inverter amplifier of the oscillation circuit.  
INV. 2 acts to shape the waveform and also acts as a buffer  
for the connection of a frequency counter.  
Rf=1MΩ  
Rd  
The feedback resistance Rf provides negative feedback  
around the inverter in order to put it in the linear region, so  
the oscillation will start, when power is applied.  
If the value of Rf is too large, and if the insulation resistance  
of the input inverter is accidentally decreased, oscillation will  
stop due to the loss of loop gain. Also, if Rf is too great, noise  
from other circuits can be introduced into the oscillation  
circuit.  
X
CL1  
CL2  
IC : 1/6TC4069UBP(TOSHIBA)  
X : CERALOCK®  
CL1, CL2 : External Capacitance  
Rd : Dumping Resistor  
Fig. 4-1 Basic Oscillation Circuit with C-MOS Inverter  
Obviously, if Rf is too small, loop gain will be low. An Rf of 1M  
Ω is generally used with a ceramic resonator.  
Damping resistor Rd provides loose coupling between the  
inverter and the feedback circuit and decreases the loading  
on the inverter, thus saving energy.  
In addition, the damping resistor stabilizes the phase of the  
feedback circuit and provides a means of reducing the gain  
in the high frequency area, thus preventing the possibility of  
spurious oscillation.  
Load capacitance CL1 and CL2 provide the phase lag of 180°.  
The proper selected value depends on the application, the IC  
used, and the frequency.  
17  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
Oscillation frequency fosc. in this circuit is expressed  
approximately by the following equation.  
C1  
C0+CL  
(4-1)  
fosc.=Fr 1+  
Where, Fr=Resonance frequency of CERALOCK®  
C1 : Equivalent series capacitance of  
CERALOCK®  
C0 : Equivalent parallel capacitance of  
CERALOCK®  
C
L1CL2  
CL=  
CL1+CL2  
4
This clearly shows that the oscillation frequency is  
influenced by the loading capacitance. Further caution  
should be paid in defining its value when a tight tolerance of  
oscillation frequency is required.  
2. Application to Various Oscillation Circuits  
Application to C-MOS Inverter  
For the C-MOS inverting amplifier, the one-stage 4069  
C-MOS group is best suited.  
The C-MOS 4049 type is not used, because the three-stage  
buffer type has excessive gain, which causes RC oscillation  
and ringing.  
Murata employs the TOSHIBA TC4069UBP as a C-MOS  
standard circuit. This circuit is shown in  
Fig. 4-2. The oscillation frequency of the standard  
CERALOCK® (C-MOS specifications) is adjusted by the  
circuit in Fig. 4-2.  
VDD  
14  
IC:TC4069UBP(TOSHIBA)  
Item  
Circuit Constant  
Frequency Rage  
VDD  
1
2
3
4
7
Part Number  
CL1  
CL2  
Rf  
Rd  
0
Rf  
CERALOCK  
CSTLSG53  
3.4010.00MHz  
+5V  
(15pF) (15pF)  
1MΩ  
®
Rd  
CL2  
Output  
CL1  
Fig. 4-2 C-MOS Standard Circuit  
18  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
Application to H-CMOS Inverter  
Recently, high-speed C-MOS (H-CMOS) have been used  
more frequently for oscillation circuits allowing high speed  
and energy saving control for the microprocessor.  
There are two types of H-CMOS inverters: the un- buffered  
74HCU series and the 74HC series with buffers.  
The 74HCU system is optimum for the CERALOCK®  
oscillation circuit.  
Fig. 4-3 shows our standard H-CMOS circuit.  
Since H-CMOS has high gain, especially in the high frequency  
area, greater loading capacitor (CL) and damping resistor (Rd)  
should be employed to stabilize oscillation performance. As  
a standard circuit, we recommend Toshiba's TC74CU04, but  
any 74HCU04 inverter from other manufacturers may be  
used.  
4
The oscillation frequency for H-CMOS specifications is  
adjusted by the circuit in Fig. 4-3.  
Item  
Part Number  
Circuit Constant  
CL2 Rf  
Frequency Rage  
VDD  
CL1  
Rd  
CSTLS G56  
3.4010.00MHz  
5V 47pF) (47pF1MΩ  
3V 5pF) (5pF1MΩ  
5V 15pF) (15pF1MΩ  
5V 22pF) (22pF1MΩ  
5V 33pF) (33pF1MΩ  
3V 5pF) (5pF1MΩ  
5V 15pF) (15pF1MΩ  
5V 22pF) (22pF15KΩ  
5V 33pF) (33pF4.7KΩ  
5V 5pF) (5pF1MΩ  
5V 15pF) (15pF15KΩ  
5V 22pF) (22pF4.7KΩ  
5V 33pF) (33pF3.3KΩ  
5V 5pF) (5pF1MΩ  
5V 15pF) (15pF15KΩ  
680Ω  
470Ω  
220Ω  
VDD  
16.0019.99MHz  
20.0025.99MHz  
14  
0
0
0
0
0
0
0
0
0
0
0
0
IC : TC74HCU04 (TOSHIBA)  
1
2
3
4
7
Rf  
CERALOCK  
®
Rd  
CL2  
Output  
CSTLS X  
CL1  
26.0032.99MHz  
33.0050.00MHz  
60.0170.00MHz : SN74AHCU04(TI)  
Fig. 4-3 H-CMOS Standard Circuit  
19  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
Characteristics of CERALOCK® Oscillation Circuits  
RoHS  
5
This chapter describes the general characteristics of the  
basic oscillation of Fig. 4-1 (page17). Contact Murata for  
detailed characteristics of oscillation with specific kinds of  
ICs and LSIs.  
1. Stability of Oscillation Frequency  
Fig. 5-1 shows examples of actual measurements for  
stability of the oscillation frequency.  
The stability versus temperature change is ±0.1 to 0.5%  
within a range of -20 to +80°C, although it varies slightly  
depending on the ceramic material.  
Influence of load capacitance (CL1, CL2) on the oscillation  
frequency is relatively high, as seen in formula (4-1)  
(Page18).  
It varies approximately ±0.05% for a capacitance deviation  
of ±10%. The stability versus supply voltage is normally  
within ±0.05% in the working voltage range, although it  
varies with the characteristics of the IC.  
5
Frequency Temperature Characteristics  
Supply Voltage Characteristics  
+0.50  
+0.25  
0
+0.50  
VDD = +5V  
+0.25  
0
Max.  
Min.  
-40  
0
40  
80  
120  
Temperature ()  
-0.25  
-0.50  
2
4
6
8
VDD (V)  
CL2 (CL1 = Constant) Characteristics  
-0.25  
+0.50  
+0.25  
0
VDD = +5V  
CL1 = 6pF Const.  
Starting Voltage  
-0.50  
+0.50  
CL1 (CL2 = Constant) Characteristics  
VDD = +5V  
CL2 = 6pF Const.  
0
1
10  
CL2/CL1  
+0.25  
-0.25  
0
0
1
10  
-0.50  
+0.50  
CL1/CL2  
CL (CL1 = CL2) Characteristics  
-0.25  
-0.50  
VDD = +5V  
+0.25  
0
0
1
100  
CL (pF)  
10  
-0.25  
-0.50  
Fig. 5-1 Examples of Actual Measurement for the Stability of Oscillation Frequency (IC: TC74HCU04 (TOSHIBA), CERALOCK®: CSACW33M8X51–B0)  
20  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
2. Characteristics of the Oscillation Level  
Fig. 5-2 shows examples of actual measurements of the  
oscillation level versus temperature, supply voltage and  
load capacitance (CL1, CL2). The oscillating amplitude is  
required to be stable over a wide temperature range, and  
temperature characteristics should be as flat as possible.  
The graph titled Supply Voltage Characteristics in Fig. 5-2  
shows that the amplitude varies linearly with supply voltage,  
unless the IC has an internal power supply voltage regulator.  
Frequency Temperature Characteristics of Oscillating Voltage  
Oscillating Voltage vs VDD Characteristics  
VDD = +5V  
V2H  
6
5
4
+9.0  
+8.0  
+7.0  
+6.0  
+5.0  
+4.0  
+3.0  
+2.0  
+1.0  
V2H  
V1H  
V1H  
3
2
5
1
V1L  
V2L  
V1L  
0
V2L  
0
-1.0  
-40  
0
40  
80  
120  
Temperature ()  
8
2
4
-1  
6
VDD (V)  
CL2 (CL1 = Constant) Characteristics  
CL1 (CL2 = Constant) Characteristics  
+7.0  
+6.0  
+5.0  
+4.0  
+3.0  
+2.0  
+1.0  
0
+7.0  
+6.0  
+5.0  
+4.0  
+3.0  
+2.0  
+1.0  
0
VDD = +5V  
CL1 = 6pF Const.  
VDD = +5V  
CL2 = 6pF Const.  
V1H  
V2H  
V2H  
V1H  
V1L  
1
10  
CL2/CL1  
1
V2L  
10  
CL1/CL2  
0
0
V2L  
V1L  
-1.0  
-1.0  
CL (CL1 = CL2) Characteristics  
+7.0  
+6.0  
+5.0  
+4.0  
+3.0  
+2.0  
+1.0  
0
VDD = +5V  
V2H  
V1H  
10  
100  
CL (pF)  
V1L  
V2L  
0
1
-1.0  
Fig. 5-2 Examples of Actual Measurement of Oscillating Amplitude (IC: TC74HCU04(TOSHIBA), CERALOCK®: CSACW33M8X51–B0)  
21  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
3. Characteristics of Oscillation Rise Time  
Oscillation rise time means the time when oscillation  
develops from a transient area to a steady state condition,  
at the time the power of the IC is activated.  
Supply Voltage Characteristics  
1.00  
With a CERALOCK®, this is defined as the time to reach  
90% of the oscillation level under steady state conditions as  
shown in Fig. 5-3.  
Rise time is primarily a function of the oscillation circuit  
design. Generally, smaller loading capacitance, higher  
frequency of ceramic resonator, and lower mechanical Q of  
ceramic resonator cause a faster rise time. The effect of load  
capacitance becomes more apparent as the capacitance of  
the resonator decreases.  
0.50  
Fig. 5-4 shows how the rise time increases as the load  
capacitance of the resonator increases. Also, Fig. 5-4 shows  
how the rise time varies with supply voltage.  
0
2
4
6
8
VDD (V)  
It is noteworthy that the rise time of CERALOCK® is one or  
two decades faster than a Crystal Unit.  
5
CL (CL1 = CL2) Characteristics  
1.00  
VDD = +5V  
Fig. 5-5 shows comparison of rise time between the two.  
ON  
VDD  
0V  
0.50  
0.9Vp-p  
Vp-p  
Time  
t=0  
Rise Time  
0
0
1
10  
100  
CL (pF)  
Fig. 5-3 Definition of Rise Time  
Fig. 5-4 Examples of Characteristics of Oscillation Rise Time  
(IC: TC74HCU04 (TOSHIBA),  
CERALOCK®: CSACW33M8X51–B0)  
Crystal Unit  
(33.868MHz)  
CSACW33M8X51–B0  
IC : TC74HCU04AP(TOSHIBA)  
DD  
L1 L2  
V
=+5V, C =C =6pF  
2.0V/div.  
0.1msec./div.  
Fig. 5-5 Comparison of the Rise Time of  
CERALOCK® vs. a Crystal Unit  
22  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
4. Starting Voltage  
Starting voltage refer to the minimum supply voltage at  
which an oscillation circuit can operate. Starting voltage  
is affected by all the circuit elements, but it is determined  
mostly by the characteristics of the IC.  
5.0  
4.0  
VDD = +5V  
Fig. 5-6 shows an example of an actual measurement for  
the starting voltage characteristics against the loading  
capacitance.  
3.0  
2.0  
1.0  
0
0
1
10  
100  
CL (pF)  
Fig. 5-6 Starting Voltage Characteristics against CL  
5
(CL1=CL2  
)
(IC: TC74HCU04 (TOSHIBA), CERALOCK®:  
CSACW33M8X51–B0)  
23  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
RoHS  
6
Application Circuits to Various ICs/LSIs  
CERALOCK®, by making good use of the above-mentioned  
features, is used in a wide range of applications to various  
kinds of ICs.  
The following are a few examples of actual applications.  
1. Application to Microcomputers  
CERALOCK® is optimum for a stable oscillation element for  
various kinds of microcomputers : 4-bit, 8-bit and  
16-bit.  
VDD (+5V)  
4, 12  
With the general frequency tolerance required for the  
reference clock of microcomputers at ±2 to ±3%, standard  
CERALOCK® meets this requirement. Please consult with  
MURATA or LSI manufacturers about the circuit constants,  
because these constants vary with frequency and the LSI  
circuit being used.  
IC : MN15G1601  
8
9
13  
CSTLS4M00G56–B0  
Fig. 6-1 to 6-5 show applications to various kinds of  
4-bit microcomputers, Fig. 6-6 to 6-8 show application to  
8-bit microcomputers, and Fig. 6-9 to 6-10 show application  
to 16bit and 32bit microcomputers.  
C1  
C2  
C1=47pF  
C2=47pF  
Fig. 6-1 Application to MN15G1601  
ꢁꢁꢁꢁ(Panasonic)  
The recomended circuit condition of many ICs has been  
uploaded to Murata Web site. Please access to the below  
URL.  
VDD (+5V)  
6
http://www.murata.com/simsurf/ic-td/  
28  
IC : TMP47C443N  
2
1
3-27  
CSTCR4M00G53–R0  
C1  
C2  
C1=15pF  
C2=15pF  
Fig. 6-2 Application to TMP47C443N  
ꢁꢁꢁꢁ(TOSHIBA)  
VDD (+5V)  
25  
IC : M34524MC–xxxFP  
22  
23  
CSTCR4M00G53–R0  
L
C1=15pF  
C2=15pF  
L : 21, 24, 28, 29  
C1  
C2  
Fig. 6-3 Application to M34524MC-xxxFP  
ꢁꢁꢁꢁ(Renesas Electronics)  
24  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
VDD (+5V)  
VDD (+5V)  
10, 24, 25  
36  
21, 24  
22  
IC : PD753108  
23  
41  
40  
9, 25, 42  
L
CSTLS4M00G56–B0  
CSTCE8M00G52-R0  
C1=47pF  
C2=47pF  
C1  
C2  
C1=10pF  
C2=10pF  
C1  
C2  
L : 2, 3, 4, 9, 18, 19  
Fig. 6-4 Application to µPD753108  
Fig. 6-7 Application to µPD780032A  
ꢁꢁꢁꢁ(Renesas Electronics)  
ꢁꢁꢁꢁ(Renesas Electronics)  
VDD (+5V)  
VDD (+5V)  
57  
10  
27,28  
IC : M38039MF-xxxFP  
IC : LC65F1156A  
22  
23  
18, 19, 24, 58, 59  
8
9
L
CSTLS8M00G53–B0  
CSTLS4M00G56–B0  
C1=47pF  
C2=47pF  
L : 1–7, 16–20, 25, 26, 29,  
30  
C1  
C2  
C1=15pF  
C2=15pF  
C1  
C2  
6
Fig. 6-5 Application to LC65F1156A  
Fig. 6-8 Application to M38039MF-xxxFP  
ꢁꢁꢁꢁ(SANYO)  
ꢁꢁꢁꢁ(Renesas Electronics)  
VDD (+5V)  
VDD (+5V)  
H
10  
27,28  
IC : HD64F2268  
IC : LC65F1156A  
65  
63  
CSTCE12M0G52-R0  
L
8
9
L
CSTLS4M00G56–B0  
C1=10pF  
C1=47pF  
C2=10pF  
C2=47pF  
C1  
C2  
C1  
C2  
H : 12, 54, 57, 61, 62  
L : 14, 42, 60, 64  
L : 1–7, 16–20, 25, 26, 29,  
30  
Fig. 6-6 Application to TMP87C809BN  
Fig. 6-9 Application to HD64F2268  
ꢁꢁꢁꢁ(TOSHIBA)  
ꢁꢁꢁꢁ(Renesas Electronics)  
25  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
VDD (+5V)  
H
16  
54  
56  
IC : M30221M4-xxxFP  
20  
22  
L
CSTCE10M0G52-R0  
C1=10pF  
C2=10pF  
H : 20, 51, 52, 76, 120  
L : 13, 18, 49, 50, 53, 55,  
78, 117  
C1  
C2  
RESET : 16  
Fig. 6-10 Application to M30221M4-xxxFP  
ꢁꢁꢁꢁ(Renesas Electronics)  
6
26  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
2. Application to Remote Control ICs  
Remote controll have become an increasingly more popular  
feature in TVs, stereos, VCRs, and air conditioners.  
VDD (+3V)  
Fig. 6-11 shows an example of CERALOCK® in remote  
control transmission ICs. Oscillation frequency is normally  
3.2M to 4MHz, with 3.64MHz being the most popular. This  
3.64MHz is divided by a carrier signal generator, so that a  
carrier of approximately 38kHz is generated.  
H
IC : µPD65  
8
7
L
CSTLS3M64G53–B0  
C1=15pF  
C2=15pF  
H : 6, 10  
C1  
C2  
L : 3, 9, 12, 13, 14  
Fig. 6-11 Application to µPD65 (Renesas Electronics)  
3. Application to ICs for Office Equipment  
With the applications of ICs in office machines, many  
CERALOCK®s are used for motor drivers/controllers/  
digital signal processor (D.S.P.) in CD's ICs. Fig. 6-12  
shows application example. It is believed that this type of  
application will increase in the future.  
VDD1 (+5V) VDD2 (+3.3V)  
H2  
H1  
6
IC : LC78646E  
L
49  
48  
Rd  
CSTCE16M9V53–R0  
Rd=150Ω  
C1=15pF  
C2=15pF  
H1 : 5, 18, 38, 41, 46,  
47, 77  
H2 : 68  
L : 6, 19, 37, 43, 44, 51,  
69, 75  
C1  
C2  
Fig. 6-12 Application to LC78646E (SANYO)  
(CD Digital Signal Processor)  
4. Other Kinds of Applications to Various ICs  
Other than the above-mentioned uses, CERALOCK® is  
widely used with ICs for voice synthesis.  
VDD (+5V)  
Fig. 6-13 shows an example of voice synthesis.  
We can provide CERALOCK® application data for many ICs  
that are not mentioned in this manual. Please consult us for  
details.  
8, 9  
IC : MSM6650GS  
GND  
8
9
CSTLS4M09G53–B0  
C1=15pF  
C2=15pF  
C1  
C2  
: 15, 29, 64  
GND : 6, 7, 14, 16, 20  
Fig. 6-13 Application to ICs for Voice Synthesis MSM6650GS  
ꢁꢁꢁꢁ(OKI)  
27  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
7 Notice  
Notice (Soldering and Mounting)  
Please contact us regarding ultrasonic cleaning conditions  
to avoid possible damage.  
Notice (Storage and Operating Conditions)  
Please do not apply excess mechanical stress to the  
component and lead terminals at soldering.  
Notice (Rating)  
The component may be damaged if excess mechanical  
stress is applied.  
Notice (Handling)  
Unstable oscillation or oscillation stoppage might  
occur when CERALOCK® is used in an improper way  
in conjunction with ICs. We are happy to evaluate the  
application circuit to help you avoid this.  
Oscillation frequency of our standard CERALOCK® is  
adjusted with our standard measuring circuit. There could  
be slight shift in frequency if other types of IC are used.  
When you require exact oscillation frequency in your  
application, please contact us.  
7
28  
P17E.pdf  
2015.12.25  
• Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.  
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.  
Note  
®
8
Appendix Equivalent Circuit Constants of CERALOCK  
(Theꢀequivalentꢀcircuitꢀconstantsꢀareꢀnotꢀtheꢀguaranteedꢀvalueꢀbutꢀtheꢀstandardꢀvalue.)  
MHz band lead CERALOCK®  
Equivalent  
Constant FrkHzFakHz) ΔFkHz)  
R1(Ω)  
L1mH)  
C1pF)  
C0pF)  
Qm  
Part Number  
CSTLS4M00G53-B0  
CSTLS6M00G53-B0  
CSTLS8M00G53-B0  
CSTLS10M0G53-B0  
CSTLS16M0X55-B0  
CSTLS20M0X53-B0  
CSTLS24M0X53-B0  
CSTLS27M0X51-B0  
CSTLS32M0X51-B0  
CSTLS33M8X51-B0  
CSTLS36M0X51-B0  
CSTLS40M0X51-B0  
CSTLS50M0X51-B0  
3784.4  
5710.9  
7604.7  
4135.3  
6199.5  
8246.3  
10399.1  
16075  
20070.8  
24095.9  
27172.8  
32092.6  
33969.7  
36241.1  
40240.1  
50193.1  
350.9  
488.6  
641.6  
709  
102.1  
111.6  
140.2  
148.5  
174.2  
191.9  
207.6  
242.7  
246.8  
9
7.5  
8
7
24.6  
19  
16.6  
15.9  
13.4  
25.6  
13.4  
15.8  
27.6  
0.4611  
0.2381  
0.1251  
0.0984  
0.6572  
0.4858  
0.4205  
0.3638  
0.2481  
0.2561  
0.226  
3.8377  
3.2635  
3.503  
2.7448  
0.1511  
0.1309  
0.105  
0.0953  
0.1002  
0.0867  
0.0863  
0.0688  
0.0547  
19.773  
18.2899  
19.9175  
18.0899  
11.7835  
11.6716  
8.944  
8.6486  
9.1542  
7.6093  
7.47  
1220  
1135  
775  
9690.1  
947  
15972.9  
19959.2  
23955.8  
27024.3  
31918.4  
33777.8  
36033.6  
39997.7  
49946.3  
2681  
3203  
3805  
3877  
3716  
2120  
3821  
3651  
2107  
0.2301  
0.1856  
5.6544  
5.5234  
MHz band Chip CERALOCK®  
Equivalent  
Constant FrkHzFakHz) ΔFkHz)  
R1(Ω)  
L1mH)  
C1pF)  
C0pF)  
Qm  
Part Number  
CSTCC2M00G53-R0  
CSTCR4M00G53-R0  
CSTCR6M00G53-R0  
CSTCE8M00G52-R0  
CSTCE10M0G52-R0  
CSTCE12M0G52-R0  
CSTCE16M0V53-R0  
CSTCE20M0V53-R0  
CSTCW24M0X51-R0  
CSTCW33M8X51-R0  
CSTCW48M0X51-R0  
1894.2  
3856  
5789.4  
7726.6  
9602  
11597.4  
15634.2  
19576  
23938.7  
33799.3  
47949.9  
2092.8  
4098.6  
6152.4  
8177.4  
10172  
12285  
16574.4  
20761  
198.6  
242.6  
363  
450.8  
570  
687.6  
940.2  
1185  
152.1  
204.4  
277.1  
16.1  
16  
11.9  
7.5  
7.2  
5.8  
10.4  
11  
24.1  
24.8  
23  
1.8473  
0.8445  
0.3899  
0.2621  
0.1674  
0.1175  
0.1084  
0.0791  
0.4716  
0.3249  
0.1978  
3.8235  
2.0176  
1.9396  
1.6201  
1.6477  
1.6023  
0.9563  
0.8366  
0.0938  
0.0683  
0.0557  
17.3264  
15.5455  
14.9946  
13.4902  
13.4755  
13.1239  
7.7184  
6.7052  
7.3546  
5.6326  
4.8049  
1375  
1304  
1207  
1715  
1401  
1483  
1039  
932  
24090.8  
34003.7  
48227  
2953  
2789  
2609  
8
29  
P17E.pdf  
2015.12.25  
Cat. No. P17E-21  
Global Locations  
For details please visit www.murata.com  
Note  
1 Export Control  
2 Please contact our sales representatives or  
product engineers before using the products in  
this catalog for the applications listed below,  
which require especially high reliability for the  
prevention of defects which might directly  
damage a third partys life, body or property, or  
when one of our products is intended for use  
in applications other than those specified in  
this catalog.  
3 Product specifications in this catalog are as of  
December 2015. They are subject to change or  
our products in it may be discontinued without  
advance notice. Please check with our sales  
representatives or product engineers before  
ordering. If there are any questions, please contact  
our sales representatives or product engineers.  
For customers outside Japan:  
No Murata products should be used or  
sold, through any channels, for use in the  
design, development, production, utilization,  
maintenance or operation of, or otherwise  
contribution to (1) any weapons (Weapons of  
Mass Destruction [nuclear, chemical or biological  
weapons or missiles] or conventional weapons)  
or (2) goods or systems specially designed or  
intended for military end-use or utilization by  
military end-users.  
4 Please read rating and CAUTION (for storage,  
operating, rating, soldering, mounting and  
handling) in this catalog to prevent smoking  
and/or burning, etc.  
1
2
3
4
5
6
Aircraft eqiꢀp ꢁn  
A rosꢀac t eqiꢀp ꢁn  
Uꢁd rs at eqiꢀp ꢁn  
Pow rtꢀlaꢁnt eqiꢀp ꢁn  
M dicalt eqiꢀp ꢁn  
5 This catalog has only typical specifications.  
Therefore, please approve our product  
specifications or transact the approval sheet  
for product specifications before ordering.  
For customers in Japan:  
For products which are controlled items subject  
to the “Foreign Exchange and Foreign Trade Law”  
of Japan, the export license specified by the law  
is required for export.  
6 Please note that unless otherwise specified, we  
shall assume no responsibility whatsoever for any  
conflict or dispute that may occur in connection  
with the effect of our and/or a third partys  
intellectual property rights and other related  
rights in consideration of your use of our products  
and/or information described or contained in our  
catalogs. In this connection, no representation  
shall be made to the effect that any third parties  
are authorized to use the rights mentioned above  
under licenses without our consent.  
Traꢁsꢀornanioꢁt eqiꢀp ꢁnt(v hicl s,tnraiꢁs,t  
shiꢀs,t nc.)  
7
8
Traffictsigꢁalt eqiꢀp ꢁn  
Disasn rtꢀr v ꢁnioꢁt/tcrip tꢀr v ꢁnioꢁt  
 eqiꢀp ꢁn  
9
Dana-ꢀroc ssiꢁgt eqiꢀp ꢁn  
10 Aꢀꢀlicanioꢁtoꢂtsipilartcopꢀl xinytaꢁd/ort  
r liabilinytr eqir p ꢁnstnotnh taꢀꢀlicanioꢁst  
lisn dtabov  
7 No ozone depleting substances (ODS) under the  
Montreal Protocol are used in our manufacturing  
process.  
Murata Manufacturing Co., Ltd.  
www.murata.com  

相关型号:

SI9130DB

5- and 3.3-V Step-Down Synchronous Converters

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9135LG-T1

SMBus Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9135LG-T1-E3

SMBus Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9135_11

SMBus Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9136_11

Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9130CG-T1-E3

Pin-Programmable Dual Controller - Portable PCs

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9130LG-T1-E3

Pin-Programmable Dual Controller - Portable PCs

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9130_11

Pin-Programmable Dual Controller - Portable PCs

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9137

Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9137DB

Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9137LG

Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY

SI9122E

500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY