TEA6840 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Lista de partido

TEA6840

New In Car Entertainment (NICE) car radio

Philips Electronics 

Philips Semiconductors

New In Car Entertainment (NICE) car radio

Preliminary specification

TEA6840H

Table 1 Data to be received by the IC

DATA

BYTE

1

2

3

4

5

6

BIT

DESCRIPTION

RESULT

0 to 6

7

0 to 7

0 to 6

7

0

1 and 2

3

4

5

6

7

0 and 1

2

3

4

5

6

7

0

1

2

3

4 to 6

7

define the setting of the programmable counter of the synthesizer PLL

start RDS update

bit 7 = 1

no RDS update started

bit 7 = 0

define the setting of the programmable counter of the synthesizer PLL

define the setting of the antenna DAA circuit

FM audio output muted; writing to programmable divider enabled for AM and FM bit 7 = 1

FM audio output not muted

bit 7 = 0

AM mode

bit 0 = 1

FM mode

bit 0 = 0

for FM mode: FM band and local/distance select

for AM mode: division ratio N2 divider (AM band select) and switching for AM stereo

IF counter prescaler ratio = 10

bit 3 = 1

IF counter prescaler ratio = 100

bit 3 = 0

LSB for reference frequency for synthesizer

reference frequency for synthesizer

MSB for reference frequency for synthesizer

IF counter period = 2 ms

bit 7 = 1

IF counter period = 20 ms

bit 7 = 0

bits only valid in test mode; setting define output at pin 15

external clock for level and antenna DAA enabled (only valid in test mode)

bit 2 = 1

external clock for level and antenna DAA disabled (only valid in test mode)

bit 2 = 0

3-state active (only valid in test mode)

bit 3 = 1

3-state off (only valid in test mode; charge pumps operational)

bit 3 = 0

AM soft mute on

bit 4 = 1

AM soft mute off

bit 4 = 0

LSB for wide band AGC setting for AM and FM

MSB for wide band AGC setting for AM and FM

keyed function on

bit 7 = 1

keyed function off

bit 7 = 0

LSB for the definition of the level slope setting of the level DAA

definition of the level slope setting of the level DAA

MSB for the definition of the level slope setting of the level DAA

LSB for the definition of the starting point setting of the level DAA

definition of the starting point setting of the level DAA

MSB for the definition of the starting point setting of the level DAA

1999 Jul 12

29

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