The Vaishali VT73227 is a single-chip, low-jitter Voltage-Controlled-Crystal-Oscillator. The device accepts a 27 MHz, 20 pF (pull range of 200 ppm) crystal input, and produces a low jitter output at the same frequency. A 0 to 3.0V control signal is used to fine tune the output clock frequency in the ±100ppm range. Features •= •= •= 3.3V operating voltage Us.
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•= 3.3V operating voltage Uses inexpensive pullable crystal 12mA drive capability at TTL levels
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•= On-chip oscillator with 200 ppm pull range (±100 ppm) 8 pin SOIC package
Figure 1. Functional Block Diagram
VDD1
VDD2
VIN X2 27 MHz Pullable Crystal
Load Cap Control
Output Buffer Load Caps Oscillator
CLK1
X1
GND1
GND2
2001-04-02 Vaishali Semiconductor 1300 White Oaks Road, Ste. 200
Page 1 Campbell CA 95008 Ph. 408.377.6060
MDST-0006-03 Fax 408.377.6063
VT73227
Figure 2. Pin Configuration X1 VDD1 VIN GND2 1 2 3 4
VT73227 8 7 6 5 X2 GND1 VDD2 CLK
8 pin (150 mil) SOIC Tabl.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | VT73227-S1 |
Vaishali Semiconductor |
VCXO (Voltage-Controlled Crystal Oscillator) 27 MHz 3.3V | |
2 | VT73227-S1X |
Vaishali Semiconductor |
VCXO (Voltage-Controlled Crystal Oscillator) 27 MHz 3.3V | |
3 | VT73127 |
Vaishali Semiconductor |
27 MHz 3.3V VCXO with Output Enable | |
4 | VT73LVP10 |
Vaishali Semiconductor |
TTL to Differential LVPECL Translator | |
5 | VT73LVP10M |
Vaishali Semiconductor |
TTL to Differential LVPECL Translator | |
6 | VT73LVP10MX |
Vaishali Semiconductor |
TTL to Differential LVPECL Translator | |
7 | VT73LVP10S1 |
Vaishali Semiconductor |
TTL to Differential LVPECL Translator | |
8 | VT73LVP10S1X |
Vaishali Semiconductor |
TTL to Differential LVPECL Translator | |
9 | VT7-705-C |
QUARTZCOM the communications company |
SMD VC-TCXO | |
10 | VT7202 |
VLSI |
1024 x 9 FIFO Memory | |
11 | VT7203 |
VLSI |
2048 x 8 FIFO Memory | |
12 | VT760 |
Vishay |
Trench MOS Barrier Schottky Rectifier |