TDA8415 Просмотр технического описания (PDF) - Philips Electronics

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TDA8415

TV and VTR stereo/dual sound processor with integrated filters and I2C-bus control

Philips Electronics 

Philips Semiconductors

TV and VTR stereo/dual sound processor

with integrated filters and I2C-bus control

Preliminary specification

TDA8415

Reading the TDA8415

Reading the TDA8415 means reading the status register and the data stream will have the format as illustrated in Fig.5

below.

Where S = start bit; A = acknowledge bit and P = stop bit

Fig.5 Read format.

The second byte, the contents of the status register, is defined by Table 2.

Table 2 Status register

D7

D6

D5

D4

D3

D2

D1

D0

PONRES

ST

DS

0

0

0

0

0

PONRES

= power on reset

1

= power on reset active after switching on or power breakdown

0

= after reading the status register

ST

= stereo transmission

DS

= dual sound transmission

The truth table for the ST and DS bits is provided by Table 3.

Table 3 Truth table for ST and DS bits

ST

DS

definition

0

0 mono transmission

0

1 dual sound transmission

1

0 stereo transmission

1

1 not possible

May 1989

9

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