SC72131 데이터 시트보기 (PDF) - Silan Microelectronics

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SC72131

PLL FOR DIGITAL TUNING SYSTEM(DTS)

Silan Microelectronics 

SC72131

and execute an IF count operation. Auto search techniques that use only the IF counter are not

recommended, since it is possible for IF buffer leakage output to cause incorrect stops at points where

there is no station.

3. Power Supply Pins

A capacitor of at least 2000 pF must be inserted between the power supply VDD and GND pins for noise

exclusion. This capacitor must be placed as close as possible to the VDD and GND pins.

PIN STATES AFTER THE POWER ON RESET

After power-on reset, the pins (DOUT OT1 OT2 OT3 OT4 ) are set to OPEN state and the pins ( IO1 , IO2 ) set

to INPUT state.

Note: this circuit according to SDIP-22 package, and the circuit of SOP-20 removed two NC pins, and others are

the same as the above circuit.

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http: www.silan.com.cn

REV:2.0 2004.08.03

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