SC72131 查看數據表（PDF） - Silan Microelectronics

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SC72131

PLL FOR DIGITAL TUNING SYSTEM(DTS)

Silan Microelectronics 

SC72131

(Continued)

Pin NO.

SDIP-22 SOP-20

14

15

13

16

14

17

15

18

16

19

17

20

18

21

19

Pin Name

Description

NC

AMIN

FMIN

VDD

DO

LFIN

LFOUT

GND

--

• These pins input AM and FM band local oscillator signals by

capacitor coupling.

•These pins feature built-in amps.

•power supply pin (Applies 5.0V±10%)

•This pin is for phase comparator tristate output.

•These pins for low-pass filter input pin and output pin.

•The SC72131 ground.

FUNCTION DESCRIPTION

Serial Data I/O Methods

The SC72131 inputs and outputs data using the 4 serial bus lines, the serial data I/O methods are selected by

an 8bit address

Register assignments

Address = 82H(IN)

Address = 92H(IN)

IO IO

OT3

IO1 IO2 OT1 OT2

OT4

C1 C2

D

DO DO DO UL UL DZ DZ

IF

*

G0 G1 TO O

T0 T1 T2

C0 C1 C2 0 1 0 1

S

C

Address = A2H (OUT)

IF1 IF1 IF1 IF1 IF1 IF1 IF1 IF1 IF1 IF1

I1 I2 * UL

IF9 IF8 IF7 IF6 IF5 IF4 IF3 IF2 IF1 IF0

9 8 7 65 4 3 2 1 0

Programmable divider structure

Swallow counter and programmable counter circuit configuration

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http: www.silan.com.cn

REV:2.0 2004.08.03

Page 5 of 11

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