TDA7466 Datasheet, PDF (1/21 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

TDA7466
DIGITALLY CONTROLLED AUDIO PROCESSOR WITH
SRS SURROUND SOUND AND VOICE CANCELLER
The Device incorporates the SRS
(Sound Retrieval System) under
licence from SRS Labs, Inc.
1 STEREO INPUT
INPUT ATTENUATION CONTROL IN 0.5dB
STEP
TREBLE MIDDLE AND BASS CONTROL
VOICE CANCELLER IS AVAILABLE
STEREO SRS SURROUND SOUND WITH
CENTER & SPACE CONTROL IS AVAILABLE
THREE STANDARD SURROUND MODES
ARE AVAILABLE:
- MUSIC IN 4 DIFFERENT SELECTABLE
RESPONSES
- MOVIE AND SIMULATED IN 256
DIFFERENT SELECTABLE RESPONSES
2 SPEAKERS OUTPUTS
- INDEPENDENT ATTENUATORS IN 1dB
STEP FOR BALANCE FACILITY
- ZERO CROSSING ATTENUATION AVAILABLE
- AVAILABILITY OF LOUDSPEAKERS
EQUALIZATION FIXED BY EXTERNAL
COMPONENTS
- INDEPENDENT MUTE FUNCTION
2 RECORD OUTPUTS
- INDEPENDENT ATTENUATORS IN 1dB
STEP FOR BALANCE FACILITY
- MUX AVAILABLE FOR PROCESSES SIGNAL
SELECTION
- INDEPENDENT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL BUS
DESCRIPTION
The TDA7466 is a volume tone (bass middle and
treble) balance (Left/Right) processors with stereo
SRS and voice canceller for quality audio applica-
tions in car radio, Hi-Fi, TV systems.
It reproduces SRS (Sound Retrieval System)
sound by external components and surround
sound by using phase shifters and a signal ma-
trix. The AC signal setting is obtained by resistor
networks and switches combined with operational
amplifiers according to the SRS laboratories
specification. Control of all the functions is ac-
May 1997
SDIP42
ORDERING NUMBER: TDA7466
PIN CONNECTION
V_S 1
PS4 2
PS3 3
PS2 4
PS1 5
LP 6
LP1 7
HP1 8
HP2 9
VAR_L 10
BASSO_L 11
VAR_R 12
BASSO_R 13
BASS_LO 14
BASS_LI 15
BASS_RO 16
BASS_RI 17
MIDDLE_LO 18
MIDDLE_LI 19
MIDDLE_RO 20
MIDDLE_RI 21
D96AU445A
42 CREF
41 NBRO
40 NBRIN
39 LPVC
38 R_IN
37 VREFOUT
36 L_IN
35 NBLIN
34 NBLO
33 NETW2
32 NETW1
31 RECOUT_L
30 RECOUT_R
29 L_OUT
28 R_OUT
27 DIG_GND
26 SCL
25 SDA
24 AGND
23 TREBLE_L
22 TREBLE_R
complished by serial bus.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained.
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