T73327 [ETC]
15-36 MHz, 3.3V VCXO; 15-36兆赫， 3.3V VCXO
| 型号： | T73327 |
| 厂家： | 
ETC |
| 描述： | 15-36 MHz, 3.3V VCXO |
| 文件： | 总5页 (文件大小：414K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary Information
T73327 / 73327A / 73327B
15-36 MHz, 3.3V VCXO
Applications
•
Crystal-driven clock source for low cost set top boxes
General Description
The TLSI T73327/73327A is a single-chip, low-jitter Voltage-Controlled-Crystal-Oscillator. The device
accepts a 15 MHz-36 MHz crystal input and produces a low-jitter output at the same frequency. A 0V to
+3.3V control signal is used to fine-tune the output clock frequency in the ±120ppm range.
Features
•
•
•
•
+3.3V operating voltage
Uses inexpensive pullable crystals
12mA drive capability at TTL levels
Low Cost
•
•
•
•
240 ppm pull range (±120 ppm)
Excellent pull range linearity
8-pin SOIC, 8-pin MSOP packages available
Alternate industry pinouts available
Figure 1. Functional Block Diagram
VDD
VIN
X2
15 MHz – 36MHz
Pullable Crystal
Output
Buffer
CLK
Oscillator
X1
GND
T73327/73327A/73327BPI
Page 1
Rev J, January 14, 2005
TLSI Incorporated, 770 Park Avenue, Huntington NY 11743 • (631) 755-7005 • Fax 631-755-7626 • www.tlsi.com
T73327/T73327A/T73327B
Preliminary Information
Figure 2. Pin Configuration
8-pin SOIC/MSOP
8-pin SOIC/MSOP
8-pin SOIC/MSOP
1
2
3
4
8
7
6
5
1
8
7
6
5
1
2
3
4
8
7
6
5
X1
X2
X1
X2
X1
X2
NC
NC
GND
2
3
4
VDD**
VIN
NC
VIN
VDD
VIN
T73327A
T73327B
T73327
VDD
CLK
NC**
GND
GND
GND
8-pin SOIC/MSOP
(See pages 4 & 5
for package outlines
&
Table 1. Pin Description
Name
Pin No.
73327 73327A
Type
Description
73327B
X1
1
1
6
1
2
Xi
P
Crystal connection. Connect to a 15 MHz - 36MHz pullable crystal
2**
VDD**
This pin can alternately be used to connect VDD instead of pin 6 or left
unconnected (for T73327 only).
3
3
3
I
Tuning control input. Zero to +3.3V signal controls the frequency of the
VCXO.
VIN
GND
CLK
NC**
4, 7
5
4
5
-
4
6
5
P
O
Connect to ground.
Clock output
6**
NC
This pin can alternately be used to connect VDD instead of pin 2 or left
unconnected (for T73327 only).
NC
X2
-
2, 7
8
7
8
NC
Xi
Do not connect
8
Crystal connection. Connect to a 15 MHz – 36 MHz pullable crystal.
Legend: I = Input
Xi = Crystal connections
NC = No connection
O = Output
P = Power supply connection
**Note: On the T73327 only, both pin 2 and pin 6 are internally connected to VDD. Either pin or both can safely be connected to
VDD without damaging the part. Alternately, at the user’s option, one pin may be used for VDD with the other pin being left
unconnected (NC).
Table 2. Absolute Maximum Ratings
Parameter
Supply voltage, VDD
Conditions
Referenced to GND
Min
Typ
Max
7
Units
V
Inputs and Clock Outputs
Soldering Temperature
Storage temperature
Referenced to GND
Max of 10 seconds
-0.5
VDD+0.5
+260
V
°C
°C
-65
+150
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These
ratings are stress specifications only and correct functional operation of the device at these or any other conditions
above those listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect product reliability.
T73327/73327A/73327BPI
Page 2
Rev J, January 14, 2005
TLSI Incorporated, 770 Park Avenue, Huntington NY 11743 • (631) 755-7005 • Fax 631-755-7626 • www.tlsi.com
T73327/T73327A/T73327B
Preliminary Information
Table 3. Operating Conditions
Parameter
Operating Voltage, VDD
Conditions
Min
+3.135
Typ
+3.3
Max
+3.465
Units
V
Input High Voltage, VIH, X1 pin only
Input Low Voltage, VIL, X1 pin only
Operating Temperature
+2.5
V
V
+0.4
+70
0
0
°C
V
VCXO control voltage, VIN
+3.3
Table 4. DC Electrical Characteristics
TA = 0°C to +70°C, VDD = +3.135 V to +3.465 V
Parameter
Output High Voltage, VOH
Condition
IOH = -12mA
Min
2.4
Typ(1)
Max
Units
V
Output Low Voltage, VOL
Operating Supply Current, IDD
Short Circuit Current
IOL = 12mA
No Load, 27 MHz
Each output
0.4
V
14.0
±50
7
20.0
mA
mA
pF
Input Capacitance
Note:
1. Typical values are at VDD = 3.3V and +25°C
Table 5. AC Electrical Characteristics
TA = 0°C to +70°C, VDD = +3.135 V to +3.465 V
Symbol
Parameter
Input Crystal Frequency
Condition
Min
15
Typ(1)
27
Max
36
Units
MHz
fosc
tr
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle
Pull Range Linearity (2)
Frequency vs Supply voltage
Maximum Absolute Jitter
(Peak to Peak)
+0.8 to +2.0V
+2.0 to +0.8V
1.5
1.5
55
5
ns
ns
%
%
%
ps
tf
tod
Lin
At VDD/2
45
50
VIN = 0.1 VDD ~ 0.9 VDD
5
tjit (pk – pk)
CL = 15pF
50
Phase Noise
27 MHz @ 10 KHz
27 MHz @ 100 KHz
-154
-156
dBc/Hz
dBc/Hz
ppm
fPULL
Output frequency pullability
±100
±120
0V ≤VIN ≤ +3.3V
Note:
1. Typical values are at VDD = +3.3V and +25°C
2. Mil-PRF-55310D 4.8.31.5 Deviation Linearity
T73327/73327A/73327BPI
Page 3
Rev J, January 14, 2005
TLSI Incorporated, 770 Park Avenue, Huntington NY 11743 • (631) 755-7005 • Fax 631-755-7626 • www.tlsi.com
T73327/T73327A/T73327B
Preliminary Information
Table 6. Pullable Crystal Specifications
Parameter
Correlation (Load) Capacitance
Symbol
Value
18 pF (typ)
CL
Capacitance Ratio
CO/C1
ESR
240 max
Equivalent Series Resistance
30 Ω max
Figure 3. Package Outline (8-pin SOIC)
T73327/73327A/73327BPI
Page 4
Rev J, January 14, 2005
TLSI Incorporated, 770 Park Avenue, Huntington NY 11743 • (631) 755-7005 • Fax 631-755-7626 • www.tlsi.com
T73327/T73327A/T73327B
Preliminary Information
Figure 4. Package Outline (8-pin MSOP)
Table 7. Ordering Information
No. of
Pins
8
Part Number
Marking
T73327
T73327A
T73327B
T73327
T73327A
T73327B
T73327
T73327A
T73327B
T73327
T73327A
T73327B
N/A
Shipping/Packaging
Package
Temperature
T73327-SO8
Tubes
SOIC
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
T73327A-SO8
T73327B-SO8
T73327-SO8-TNR
T73327A-SO8-TNR
T73327B-SO8-TNR
T73327-MO8
Tape & Reel
Tubes
8
8
8
SOIC
MSOP
MSOP
T73327A-MO8
T73327B-MO8
T73327-MO8-TNR
T73327A-MO8-TNR
T73327B-MO8-TNR
T73327-DIE
Tape & Reel
Die in Waffle Pack
Die in Probed Wafer
8
8
N/A
N/A
0°C to +70°C
0°C to +70°C
T73327-DPW
N/A
T73327/73327A/73327BPI
Page 5
Rev J, January 14, 2005
TLSI Incorporated, 770 Park Avenue, Huntington NY 11743 • (631) 755-7005 • Fax 631-755-7626 • www.tlsi.com
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