2000 May 19

21

Philips Semiconductors

Objective specification

ATSC Digital Terrestrial TV

demodulator/decoder

TDA8961

Table 8

General settings (write)

Notes

1. Operating modes and control parameters of all sections in the TDA8961 are not affected.

2. Operating modes and control parameters of all sections in the TDA8961 are reset to their initial values.

Table 9

Sample rate converter settings (write)

Table 10 AGC settings (write)

BIT NAME

BIT VALUE

DESCRIPTION

INITIAL_RESET

0

normal operation (default)

1

initial reset; note 1

GNRL_RESET

0

normal operation (default)

1

general reset; note 2

BE_RESET

0

normal operation (default)

1

backend reset

EQ_RESET

0

normal operation (default)

1

equalizer reset

EQ_FREEZE

0

normal operation (default)

1

equalizer adaptation freeze

EQ_RST_DISABLE

0

normal operation (default)

1

equalizer reset disable

FE_RST_DISABLE

0

normal operation (default)

1

front-end reset disable

SR_RESET

0

normal operation (default)

1

reset sync recovery section

AGC_RESET

0

normal operation (default)

1

reset input AGC

TR_RESET

0

normal operation (default)

1

reset the timing recovery

CR_RESET

0

normal operation (default)

1

carrier recovery reset enable

BIT NAME

BIT VALUE

DESCRIPTION

AD_FMT

0

two’s complement

1

binary (default)

BIT NAME

BIT VALUE

DESCRIPTION

AGC_SAMPLES

0

average over 64 samples (default)

1

average over 256 samples

AGC_DIR

0

AGC operation compatible with TDA8980 (default)

1

AGC operation compatible with TDA9819/9829

AGC_TR_LOW

−

AGC threshold value