TDA7801 datasheet(10/48 Pages) STMICROELECTRONICS

10 / 48 page

Application diagrams

TDA7801

10/48

DocID022674 Rev 4

Table 2. Flexiwatt27 (vertical/SMD/horizontal) pin description

N°

Function

TAB

TAB connection (GND)

Pll-filter / ENABLE Pll loop filter / ENABLE

PW_GND

Power ground channel 2

OUT 2- / LR-

Channel 2 (Left Rear) negative output

Word select (I2S bus, logic input)

OUT 2+ / LR+

Channel 2 (Left Rear) positive output

Vcc

Channel 1 and 2 positive supply

OUT 1- / LF-

Channel 1 (Left Front) negative output

PW_GND

Power ground channel 1

OUT 1+ / LF+

Channel 1 (Left Front) positive output

SCK

Serial clock (I2S bus, logic input)

SD2_4

Serial data channels 2 and 4 (I2S bus, logic input)

SD1_3

Serial data channels 1 and 3 (I2S bus, logic input)

Dgnd

Digital ground

Agnd

Analog ground

D3V

Digital 3.3 V supply filter

A3V

Analog 3.3 V supply filter

OUT3+ / RF+

Channel 3 (right front) positive output

PW_GND

Power ground channel 3

OUT3- / RF-

Channel 3 (right front) negative output

Vcc

Channels 3 and 4 positive supply

OUT4+ / RR+

Channel 4 (right rear) positive output

CD/DIAG

Clip detector and diagnostic output:

– Overcurrent protection intervention

– Thermal warning

–POR

– (Open drain output)

OUT4- / RR-

Channel 4 (right rear) negative output

PW_GND

Power ground channel 4

I2C Data

I2C data/legacy mode mute

I2C Clock

I2C clock/enable legacy mode

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