M61251AFP datasheet(9/16 Pages) RENESAS

9 / 16 page

M61251AFP

Rev.1.0, Sep.22.2003, page 9 of 15

Bus table

Write

Function

Bit

Sub-

address

Data

Description

Initial

value

Note

RF delay

adjustment

00H

D0 to D6

RF AGC delay point adjustment

40H

VIF VCO

adjustment

10H

D0 to D5

VIF VCO free-run frequency adjustment (VIF

defeat = 1, AFT output: center)

20H

VIF frequency

58, 75

01H

IF output at 45.75 / 58.75 MHz. 0: 45.75 MHz,

1: 58.75 MHz

VIF video out

gain

06H

D5 – D7

Adjustment of output level for VIF-demodulated

video waveform on pin 58

80H

AFT defeat

04H

AFT output on / off (defeat). 0: AFT on (non

defeat), 1: defeat

VIF defeat

07H

VIF gain normal/minimum. 0: AGC function, 1:

defeat (minimum gain)

Audio

attenuation

03H

D0 to D6

Pin 51 audio-output level adjustment

00H

Audio EXT

02H

Switches between the internal and external-

input audio signals. 0: internal, 1: external

Audio mute

03H

Pin 54 audio direct output on / off (mute). 0:

audio on (no mute), 1: mute

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