PLL501-21 [PLL]
VCXO Clock Generator IC; VCXO时钟发生器IC
| 型号： | PLL501-21 |
| 厂家： | 
PHASELINK CORPORATION |
| 描述： | VCXO Clock Generator IC |
| 文件： | 总5页 (文件大小：130K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PLL501-21/23
VCXO Clock Generator IC
FEATURES
PIN CONFIGURATION
·
On-chip tunable voltage-controlled crystal
oscillator circuitry (VCXO) allows precise system
frequency tuning (pull range 200ppm minimum).
VCXO tuning range: 0-3.3V.
Uses inexpensive fundamental-mode crystals.
Integrated phase-locked loop (PLL) multiplies
VCXO frequency to the higher system
frequencies needed.
XIN
XOUT
GND
VDD
CLK
1
2
3
4
8
7
6
5
VDD
VIN
·
·
·
GND
·
·
·
·
3.3V supply voltage.
Table 1: Crystal / Output Frequencies
Small circuit board footprint (8-pin 0.150’’ SOIC).
Custom frequency selections available.
12mA output drives capability at TTL level.
DEVICE
PLL501-21
PLL501-23
FXIN (MHz)
13.5
CLK (MHz)
27
54
DESCRIPTIONS
13.5
The PLL501-21/23 is a monolithic low Jitter, high
performance CMOS clock generator IC. It has a
circuitry that implements a voltage-controlled crystal
oscillator when an external resonator (nominally
13.5MHz) is attached. The VCXO allows device
frequencies to be precisely adjusted for matching
requirements.
Note: Contact PhaseLink for custom PLL Frequencies
This product is ideal for Set-Top Box and multimedia
synthesizer applications.
BLOCK DIAGRAM
XIN
Output
Buffer
PLL
VCXO
CLK
XOUT
VIN
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 01/15/01 Page 1
PLL501-21/23
VCXO Clock Generator IC
PIN DESCRIPTIONS
Name
Number
Type
Description
XIN
VDD
VIN
1
2
3
4
5
6
7
8
I
Crystal input connection (parallel mode crystal, CL = 14pF).
P
I
3.3V Power Supply.
Voltage Input for VCXO Frequency Control.
Ground for PLL Core.
Clock Output.
GND
CLK
P
O
P
P
O
VDD
GND
XOUT
3.3V Power Supply.
Ground.
Crystal connection.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 01/15/01 Page 2
PLL501-21/23
VCXO Clock Generator IC
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
SYMBOL
MIN.
MAX.
UNITS
Supply Voltage
7
VDD+0.5
VDD+0.5
150
V
V
VDD
VI
Input Voltage, dc
VSS-0.5
VSS-0.5
-65
Output Voltage, dc
V
VO
TS
TA
TJ
Storage Temperature
°C
°C
°C
°C
KV
Ambient Operating Temperature
Junction Temperature
0
70
125
Lead Temperature (soldering, 10s)
Input Static Discharge Voltage Protection
260
2
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the
device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other
conditions above the operational limits noted in this specification is not implied.
2. DC Electrical Specifications
PARAMETERS
SYMBOL
CONDITIONS
fXTA = 13.5MHz
MIN.
TYP.
MAX.
UNITS
Supply Current, Dynamic,
with Loaded Outputs
IDD
20
mA
Ouput load of 4pF
Operating Voltage
Output High Voltage
Output Low Voltage
VDD
VOH
VOL
3.13
2.4
3.47
0.4
V
V
V
IOH = -12mA
ILO = 12mA
Output High Voltage at
CMOS level
VOHC
IDD
IOH = -4mA
No Load
VDD– 0.4
V
Operating Supply Current
Short Circuit Current
7
mA
mA
V
±50
VIN, VCXO Control Voltage
0
3.3
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 01/15/01 Page 3
PLL501-21/23
VCXO Clock Generator IC
3. AC Electrical Specifications
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Input Crystal Frequency
Input Crystal Accuracy
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle
Max Absolute Jitter
13.5
MHz
ppm
ns
±30
1.5
1.5
55
tr
tf
0.8V ~ 2.0V
2.0V ~ 0.8V
ns
Measured @ 1.4V
Short Term
45
50
%
100
±50
ps
Short Circuit Current
CLK output pullability
mA
ppm
0V£VIN£3.3V
±100
4. Voltage Control Crystal Oscillator
PARAMETERS
PLL Stabilization Time *
VCXO Stabilization Time *
SYMBOL
CONDITIONS
From VCXO stable
From power valid
MIN.
TYP.
500
10
MAX.
UNITS
us
TPLLSTB
ms
TVCXOSTB
Output Frequency Synthesis
Error
(Unless otherwise noted in
Frequency Table)
ppm
MHz
pF
±30
Crystal Resonator
Frequency
Parallel Fundamental
Mode
10
13.5
14
15
fXTAL
CL(xtal)
C1(xtal)
Crystal Loading
Capacitance
VXTUNE=1.65V
At cut
Crystal Resonator Motional
Capacitance
25
fF
fXTA = 13.5MHz;
CL=14pF; CMOT=25fF
VCXO Tuning Range
200
100
ppm
VCXO Tuning Characteristic
ppm/V
Note: Parameters denoted with an asterisk ( * ) represent nominal characterization data and are not production tested to any specific limits.
External Components
The PLL501-21/23 requires a minimum number of external components for proper operation. A
decoupling capacitor of 0.01mF should be connected between VDD and GND on pin2 and 4, as close to
the PLL501-21/23 as possible. A series termination resistor of 33W may be used for the clock output.
The input crystal must be connected as close to the chip as possible. The input crystal should be a
parallel mode, pullable, AT cut, 13.5MHz, with 14pF load capacitance and a C0/C1 ratio of maximum
250. Consult PhaseLink for recommended suppliers.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 01/15/01 Page 4
PLL501-21/23
VCXO Clock Generator IC
PACKAGE INFORMATION
8 PIN Narrow SOIC ( mm )
SOIC
Symbol
Min.
Max.
E
H
A
A1
B
C
D
E
1.55
0.15
0.35
0.19
4.80
3.81
5.84
0.41
1.73
0.18
0.49
0.25
4.98
3.99
6.20
0.89
D
H
L
A
A
1
e
1.27 BSC
C
L
B
e
ORDERING INFORMATION
For part ordering, please contact our Sales Department:
47745 Fremont Blvd., Fremont, CA 94538, USA
Tel: (510) 492-0990 Fax: (510) 492-0991
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
PLL501-21 S C
TEMPERATURATRE
C=COMMERCIAL
M=MILITARY
PART NUMBER
I=INDUSTRAL
PACKAGE TYPE
S=SOIC
PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information
furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said
information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY: PhaseLink’s products are not authorized for use as critical components in life support devices or systems without the
express written approval of the President of PhaseLink Corporation.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 01/15/01 Page 5
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