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PDF TDA7465 Data sheet ( Hoja de datos )
| Número de pieza | TDA7465 | |
| Descripción | DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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TDA7465
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 AND 1 MIXER 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
REAR OUTPUT IS AVAILABLE TO DRIVE
EXTRA SURROUND SPEAKERS
2 SPEAKERS OUTPUTS
- INDEPENDENT ATTENUATORS IN 1dB
STEP FOR BALANCE FACILITY
- ZERO CROSSING ATTENUATION AVAILABLE
- 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
ADDRESS PIN AVAILABLE
DESCRIPTION
The TDA7465 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. An Extra Mix Input is available to
SDIP42
ORDERING NUMBER: TDA7465
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
42 CREF
41 REAR_OUT
40 REAR_IN
39 LPVC
38 R_IN
37 VREFOUT
36 L_IN
35 MIX
34 NETW2
33 NETW1
32 RECOUT_L
31 RECOUT_R
30 L_OUT
29 R_OUT
28 DIG_GND
27 SCL
26 SDA
25 ADDR
24 AGND
23 TREBLE_L
22 TREBLE_R
D96AU479B
connect microphone for KARAOKE feature.
Control of all the functions is accomplished by se-
rial bus.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained.
May 1997
1/20
1 page  
TDA7465
ELECTRICAL CHARACTERISTICS (continued)
Symbol
RMON1
Parameter
Simulated R Output 1
RMON2 Simulated R Output 2
RMON3 Simulated R Output 3
RLP1
RHPI
RL PF
RREARIN
RREAROUT
VOUT
Low Pass Filter Resistance
High Pass Filter Resistance
LP Pin Impedance
Rear Input Resistance
Rear Output Resistance
DC Rear Voltage Level
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
D6 = 0
D6 = 0
D6 = 0
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
Min.
7.5
45
7.5
37.5
10
- 21
8.8
10.6
13.4
28
4.2
5.1
6.3
13.7
9
10.9
13.6
29.3
9
Typ. Max.
– 4.5
3.8
– 20
10 12.5
60 75
10 12.5
50 62.5
30 50
4.5
-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
14.8
17.6
22.4
46.6
7
8.5
10.5
22.9
15.1
18.1
22.6
48.9
15.1
Unit
dB
dB
dB
KΩ
KΩ
KΩ
KΩ
Ω
V
dB
dB
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
5/20
5 Page 
BASS SELECTION
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
10000
10001
10010
10011
10100
10101
10110
10111
11111
11110
11101
11100
11011
11010
11001
11000
TDA7465
BASS
2 dB STEPS
-14
-12
-10
-8
-6
-4
-2
0
0
2
4
6
8
10
12
14
11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet TDA7465.PDF ] | |
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