TEF6894H datasheet(27/55 Pages) PHILIPS

27 / 55 page

2003 Oct 21

Philips Semiconductors

Product speciﬁcation

Car radio integrated signal processor

TEF6894H

Note

1. Data bytes 0, 1, 2 and 3 must not be used in the application. All bits in these bytes must be set to logic 0.

11.2.1

SUBADDRESS 2H; RDSCLK

Table 14 Format of data byte 2H with default setting

Table 15 Description of data byte 2H

11.2.2

SUBADDRESS 4H; CONTROL

Table 16 Format of data byte 4H with default setting

Table 17 Description of data byte 4H

01110

TREBLE

treble control

01111

BASS

bass control

10000

FADER

fader control

10001

BALANCE

balance control

10010

MIX

control of output mixer

10011

BEEP

beep generator settings

11111

AUTOGATE

autogate control

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

−−

TST3

TST2

TST1

TST0

−−

0000

−−

BIT

SYMBOL

DESCRIPTION

7 and 6

−

Not used. Set to logic 0.

5 to 2

TST[3:0]

Test. TST[3:0] = 0000: normal operation.

1 and 0

−

Not used. Set to logic 0.

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

−

STBA

AFUM

AFUH

RMUT

−

LETF

ATTB

−

1000

−

BIT

SYMBOL

DESCRIPTION

−

Not used. Set to logic 0.

STBA

Standby mode audio processing. 0 = audio processing active; 1 = audio processing

in standby mode (audio inputs and outputs at DC).

AFUM

Enables AF update mute. 0 = AF update mute disabled; 1 = AF update mute enabled

(controlled by AFSAMP and AFHOLD input).

AFUH

AF update hold function. 0 = disable, the weak signal processing hold is controlled by

the AFHOLD input only; 1 = hold. This is equal to taking the AFHOLD input LOW. The

bit is reset to 0, when AFHOLD input is set to LOW (i.e. at AF update or preset change).

RMUT

Radio signal mute. 0 = no mute; 1 = mute with 1 ms ASI slope at start and stop.

SA4

SA3

SA2

SA1

SA0

HEX(1)

MNEMONIC

ADDRESSED DATA BYTE

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