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PDF TDA7466 Data sheet ( Hoja de datos )
| Número de pieza | TDA7466 | |
| Descripción | DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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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
VS
PS4
PS3
PS2
PS1
LP
LP1
HP1
HP2
VAR_L
BASSO_L
VAR_R
BASSO_R
BASS_LO
BASS_LI
BASS_RO
BASS_RI
MIDDLE_LO
MIDDLE_LI
MIDDLE_RO
MIDDLE_RI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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.
1/21
1 page  
TDA7466
ELECTRICAL CHARACTERISTICS (continued)
Symbol
RMON1
Parameter
Simulated R Output 1
RMON2 Simulated R Output 2
RMON3 Simulated R Output 3
RLP1
RHPI
RL PF
Low Pass Filter Resistance
High Pass Filter Resistance
LP Pin Impedance
Test Condition
Simulated Mode, Effect Ctrl = -6dB
Input signal of 250Hz,
1.4 Vp-p, Rin and Lin →Rout
Simulated Mode, Effect Ctrl = -6dB
Input signal of 1kHz,
1.4 Vp-p, Rin and Lin →Rout
Simulated Mode, Effect Ctrl = -6dB
Input signal of 3.6kHz,
1.4 Vp-p, Rin and Lin → Rout
STANDARD SURROUND SOUND EFFECT CONTROL
CRANGE Control Range
SSTEP
Step Resolution
SURROUND SOUND MATRIX PHASE
RPS10 Phase Shifter 1: D1 = 0, D0 = 0
RPS11
Phase Shifter 1: D1 = 0, D0 = 1
RPS12 Phase Shifter 1: D1 = 1, D0 = 0
RPS13 Phase Shifter 1: D1 = 1, D0 = 1
RPS20 Phase Shifter 2: D3 = 0, D2 = 0
RPS21 Phase Shifter 2: D3 = 0, D2 = 1
RPS22
Phase Shifter 2: D3 = 1, D2 = 0
RPS23 Phase Shifter 2: D3 = 1, D2 = 1
RPS30
Phase Shifter 3: D5 = 0, D4 = 0
RPS31 Phase Shifter 3: D5 = 0, D4 = 1
RPS32 Phase Shifter 3: D5 = 1, D4 = 0
RPS33 Phase Shifter 3: D5 = 1, D4 = 1
RPS40 Phase Shifter 4: D7 = 0, D6 = 0
RPS41 Phase Shifter 4: D7 = 0, D6 = 1
RPS42 Phase Shifter 4: D7 = 1, D6 = 0
RPS43
Phase Shifter 4: D7 = 1, D6 = 1
Min.
7.5
45
7.5
- 21
8.8
10.6
13.4
28
4.2
5.1
6.3
13.7
9
10.9
13.6
29.3
9
10.9
13.6
29.3
Typ. Max.
– 4.5
3.8
– 20
10 12.5
60 75
10 12.5
-6
1
11.8
14.1
17.9
37.3
5.6
6.8
8.4
18.3
12.1
14.5
18.1
39.1
12.1
14.5
18.1
39.1
14.8
17.6
22.4
46.6
7
8.5
10.5
22.9
15.1
18.1
22.6
48.9
15.1
18.1
22.6
48.9
Unit
dB
dB
dB
KΩ
KΩ
KΩ
dB
dB
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
KΩ
SRS SURROUND SOUND MATRIX
CENTER
Step C
SPACE
StepS
PERSP1
SRS Control Range
Center Step Resolution
SRS Space Control Range
Space Step Resolution
Perspective 1
PERSP2 Perspective 2
L+R L+ R SRS Curve
-31
Input Signal of 125Hz
SPACE = 0dB, CENTER = MUTE
Rin = GND; Lin → ROUT
Input Signal of 2.15KHz
SPACE = 0dB, CENTER = MUTE
Rin = GND; Lin → ROUT
SPACE = MUTE, CENTER
=0dB
Rin = GND; Lin → ROUT
1
-31
1
12
0
-8.5
0
0
dB
dB
dB
dB
dB
dB
dB
5/21
5 Page 
TDA7466
BASS SELECTION
MSB
LSB
BASS
D7 D6 D5 D4 D3 D2 D1 D0
2 dB STEPS
0000
0001
-14
-12
0010
0011
0100
0101
0110
-10
-8
-6
-4
-2
0111
0
1111
0
1110
2
1101
1100
4
6
1011
1010
8
10
1001
1000
12
14
NATURAL BASE
0
NBRIN, NBRO, NBLIN,
NBLO PIN ACTIVE
1
NO NBRIN, NBRO, NBLIN,
NBLO PIN
When external components aren’t connected, the data from NATURAL BASE must put ”OFF”
11/21
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet TDA7466.PDF ] | |
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