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參數(shù)資料
| 型號： | T73227-DIE |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 27 MHz VCXO Clock Generator IC |
| 中文描述： | 27 MHz的石英振蕩器時鐘發(fā)生器IC |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 86K |
| 代理商： | T73227-DIE |
October 2002
This document contains information on a preproduction product. Specifications and information herein are subject to change without notice.
10.29.02
T73227
27 MHz VCXO Clock Generator IC
ISO9001
1.0
Features
One-chip tunable voltage controlled crystal oscillator
(VCXO) allows precise system frequency tuning
3.3V operation
8 pin SOIC and MSOP packages
Uses inexpensive 20pF pullable crystals with no
external capacitors required.
12mA drive capability at TTL levels
2.0
Applications
Set-top boxes
MPEG Video clock source
Oscillator replacement
3.0
Description
The T73227 is a single-chip, low-jitter Voltage-Controlled-
Crystal-Oscillator. The device accepts a 27 MHz, 20 pF
crystal, and produces a low jitter output at the same fre-
quency. A 0 to 3.0V control signal is used to fine tune the
output clock frequency in the ±100ppm range. This finds
use in systems that have frequency matching require-
ments, such as digital satellite receivers.
Figure 1: Block Diagram
CLK
VDD2
VDD1
X2
Load Cap Control
Output
Buffer
Load
Caps
27 MHz
Pullable
Crystal
VIN
X1
GND1
GND2
Oscillator
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