TDA7466$ STMicroelectronics, TDA7466$ Datasheet

IC PROCESSOR AUDIO DGTL 42-SDIP

TDA7466$

Manufacturer Part Number
TDA7466$
Description
IC PROCESSOR AUDIO DGTL 42-SDIP
Manufacturer
STMicroelectronics
Type
Audio Processorr
Datasheet

Specifications of TDA7466$

Applications
Automotive Systems
Mounting Type
Through Hole
Package / Case
42-SDIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
September 2003
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-
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
- MOVIE AND SIMULATED IN 256
2 SPEAKERS OUTPUTS
- INDEPENDENT ATTENUATORS IN 1dB
- ZERO CROSSING ATTENUATION AVAILABLE
- AVAILABILITY OF LOUDSPEAKERS
- INDEPENDENT MUTE FUNCTION
2 RECORD OUTPUTS
- INDEPENDENT ATTENUATORS IN 1dB
- MUX AVAILABLE FOR PROCESSES SIGNAL
- INDEPENDENT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL BUS
SELECTION
RESPONSES
DIFFERENT SELECTABLE RESPONSES
STEP FOR BALANCE FACILITY
EQUALIZATION FIXED BY EXTERNAL
COMPONENTS
STEP FOR BALANCE FACILITY
®
DIGITALLY CONTROLLED AUDIO PROCESSOR WITH
SRS SURROUND SOUND AND VOICE CANCELLER
The Device incorporates the SRS
WOW
cence from SRS Labs, Inc.
Technology under li-
PIN CONNECTION
complished by serial bus.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained.
MIDDLE_RO
MIDDLE_LO
MIDDLE_RI
MIDDLE_LI
BASSO_R
BASS_RO
BASSO_L
BASS_LO
BASS_RI
BASS_LI
VAR_R
VAR_L
HP1
HP2
PS4
PS3
PS2
PS1
LP1
V
LP
ORDERING NUMBER: TDA7466
S
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D96AU445A
SDIP42
TDA7466
42
41
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32
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25
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CREF
NBRO
NBRIN
LPVC
R_IN
VREFOUT
L_IN
NBLIN
NBLO
NETW2
NETW1
RECOUT_L
RECOUT_R
L_OUT
R_OUT
DIG_GND
SCL
SDA
AGND
TREBLE_L
TREBLE_R
1/21

Related parts for TDA7466$

TDA7466$ Summary of contents

Page 1

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER The Device incorporates the SRS WOW cence from SRS Labs, Inc. 1 STEREO INPUT INPUT ATTENUATION CONTROL IN 0.5dB STEP TREBLE MIDDLE AND BASS CONTROL VOICE CANCELLER IS ...

Page 2

TDA7466 BLOCK DIAGRAM MIDDLE-LO MIDDLE-LI 2/21 BASS-RI MIDDLE-RO MIDDLE-RI SRS VREFOUT CREF AGND ...

Page 3

THERMAL DATA Symbol R Thermal Resistance Junction-pins th j-pins ABSOLUTE MAXIMUM RATINGS Symbol V Operating Supply Voltage S T Operating Ambient Temperature amb T Storage Temperature Range stg QUICK REFERENCE DATA Symbol V Supply Voltage S V Max. input signal ...

Page 4

TDA7466 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter SUPPLY A Voice Canceller Output 3 VO3 R Low Pass Filter Resistance LPV BASS CONTROL Gb Control Range B Step Resolution STEP R Internal Feedback Resistance B MIDDLE CONTROL Gm Control Range M Step ...

Page 5

ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter R Simulated R Output 1 MON1 R Simulated R Output 2 MON2 R Simulated R Output 3 MON3 R Low Pass Filter Resistance LP1 R High Pass Filter Resistance HPI R LP Pin Impedance LPF ...

Page 6

TDA7466 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter SPEAKER & RECORD ATTENUATORS C Control Range range S Step Resolution STEP E Attenuation set error Steps DC A Output Mute Condition MUTE R Input Impedance VAR SPEAKER ATTENUATORS V Zero ...

Page 7

I C BUS INTERFACE Data transmission from microprocessor to the TDA7466 and viceversa takes place through the 2 2 wires I C BUS interface, consisting of the two lines SDA and SCL (pull-up resistors to positive supply voltage must ...

Page 8

TDA7466 SOFTWARE SPECIFICATION Interface Protocol The interface protocol comprises: A start condition (S) A chip address byte, containing the TDA7466 CHIP ADDRESS MSB LSB D95AU226A ACK = Achnowledge S = Start ...

Page 9

DATA BYTES (Address = 80(HEX)): FUNCTION SELECTION: The first byte (subaddress) MSB ...

Page 10

TDA7466 STANDARD SURROUND SELECTION MSB ...

Page 11

BASS SELECTION MSB When external components aren’t connected, the data from NATURAL BASE must put "OFF" ...

Page 12

TDA7466 MIDDLE & TREBLE SELECTION MSB ...

Page 13

LEFT CHANNEL SPEAKER ATTENUATION SELECTION MSB LEFT & RIGHT CHANNELS BOTH MSB D7 ...

Page 14

TDA7466 RECORD AND RIGHT CHANNEL SPEAKER ATTENUATION SELECTION MSB DON’T CARE ...

Page 15

SRS SPACE CONTROL: ATTENUATION SELECTION MSB DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB SRS CENTER CONTROL: ATTENUATION SELECTION MSB ...

Page 16

TDA7466 POWER ON RESET SURROUND & OUT CONTROL+ EFFECT CONTROL SPEAKER/RECORD ATTENUATION L &R MODE INPUT ATTENUATION + REAR SWITCH NATURAL BASE VOICE CANCELLER INPUT MIX SWITCH SRS SURROUND BASS & MIDDLE TREBLE PIN DESCRIPTION PIN: L-OUT, R-OUT, RECOUT-L, RECOUT-R ...

Page 17

PIN: VAR-L, VAR- 30K GND Vref PIN: LP1 V S 10K GND HP1 PIN: PS1, PS2, PS3, PS4 GND PIN: CREF 20 A D95AU227 PIN: SCL, SDA 20 A D94AU211 PIN: NETW2 20 A ...

Page 18

TDA7466 PIN: BASSO-L, BASSO-R, NETW1 GND PIN: BASS-LO, BASS-RO, MIDDLE-LO, MIDDLE-RO (*) GND BASS-LI,BASS-RI,MIDDLE-LI,MIDDLE-RI (*) 45K : Bass 25K : MIDDLE PIN: VOUT REF GND 10K GND 18/21 PIN: BASS-LI, ...

Page 19

PIN: NBLO, NBRO V S GND D95AU235A VREF TDA7466 19/21 ...

Page 20

TDA7466 mm DIM. MIN. TYP. MAX. A 5.08 A1 0.51 A2 3.05 3.81 4.57 B 0.38 0.46 0.56 B1 0.89 1.02 1.14 c 0.23 0.25 0.38 D 36.58 36.83 37.08 E 15.24 16.00 E1 12.70 13.72 14.48 e 1.778 e1 ...

Page 21

... STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. ...

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