VT73227 Просмотр технического описания (PDF) - Vaishali Semiconductor
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VT73227 Datasheet PDF : 3 Pages
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VT73227
Figure 2. Pin Configuration
X1
VDD1
VIN
GND2
VT73227
1
8
2
7
3
6
4
5
X2
GND1
VDD2
CLK
8 pin (150 mil) SOIC
Table 1. Pin Description
Name
X1
Pin #
1
Type
Description
Xi
Crystal connection. Connect to a 27 MHz pullable crystal
VDD1
2
VIN
3
P
Core VDD. Connect to 3.3V
I
Voltage input to VCXO. Zero to 3.3V signal controls the frequency of the VCXO.
GND2
4
P
Connect to ground.
CLK
5
O
Clock output
VDD2
6
GND1
7
P
Pad driver VDD . Connect to 3.3V
P
Connect to ground.
X2
8
Xi
Crystal connection. Connect to a 27 MHz pullable crystal.
Legend: I = Input
O = Output
P = Power supply connection
Xi = Crystal connections.
Table 2. Absolute Maximum Ratings
Parameter
Supply voltage, VDD
Conditions
Referenced to GND
Min Typ
Max
Units
7
V
Inputs and Clock Outputs
Referenced to GND -0.5
VDD+0.5 V
Soldering Temperature
Max of 10 seconds
260
°C
Storage temperature
-65
150
°C
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.
Table 3. Operating Conditions
Parameter
Operating Voltage, VDD
Input High Voltage, VIH, X1 pin only
Input Low Voltage, VIL, X1 pin only
Operating Temperature
Input crystal accuracy
VCXO control voltage, VIN
Conditions
Min
3.15
2.5
0
0
Typ
3.3
Max
3.45
0.4
70
±30
3.3
Units
V
V
V
°C
ppm
V
2001-04-02
Page 2
MDST-0006-03
Vaishali Semiconductor 1300 White Oaks Road, Ste. 200 Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063
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