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TDA9887TS

I2C-bus controlled multistandard alignment-free IF-PLL demodulator with FM radio

Philips Electronics 

Philips Semiconductors

I2C-bus controlled multistandard alignment-free

IF-PLL demodulator with FM radio

Product specification

TDA9887

9.2.1 SUBADDRESS

If more than one data byte is transmitted, then auto-increment is performed: starting from the transmitted subaddress

and auto-increment of subaddress in accordance with the order of Table 10.

Table 10 Definition of the subaddress (second byte after slave address); note 1

REGISTER

SAD for switching mode

SAD for adjust mode

SAD for data mode

MSB

LSB

A7(2)

A6(3)

A5(3)

A4(3)

A3(3)

A2(3)

A1

A0

0

X

X

X

X

X

0

0

0

X

X

X

X

X

0

1

0

X

X

X

X

X

1

0

Notes

1. X = don’t care.

2. Bit A7 = 1 is not allowed.

3. Bits A6 to A2 will be ignored by the internal hardware.

9.2.2 DATA BYTE FOR SWITCHING MODE

Table 11 Bit description of SAD register for switching mode (SAD = 00)

BIT

B7

B6

B5

B4 and B3

B2

B1

VALUE

1

0

1

0

1

0

00

01

10

11

1

0

1

0

DESCRIPTION

Output port 2 e.g. for SAW switching or AGC monitoring

high-impedance, disabled or HIGH

low-impedance, active or LOW

Output port 1 e.g. for SAW switching or external AGC input

high-impedance, disabled or HIGH

low-impedance, active or LOW

Forced audio mute

on

off

TV standard modulation and radio mode

positive AM TV; note 1

FM radio; note 2

negative FM TV

FM radio; note 2

Carrier mode

QSS mode

intercarrier mode

Auto mute of FM AF output

active

inactive

2004 Aug 25

17

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