參數(shù)資料
型號(hào): TDA7431
廠商: 意法半導(dǎo)體
英文描述: DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER
中文描述: 數(shù)控式環(huán)繞聲矩陣和消音器的音頻處理器
文件頁數(shù): 1/21頁
文件大?。?/td> 168K
代理商: TDA7431
TDA7430
TDA7431
DIGITALLY CONTROLLED AUDIO PROCESSOR WITH
SURROUND SOUND MATRIX AND VOICE CANCELLER
1 STEREO(4 STEREO)INPUT + 1 MIXER IN-
PUT
INPUT ATTENUATION CONTROL IN 0.5dB
STEP
VOICE CANCELLER IS AVAILABLE
TREBLEMIDDLE AND BASS CONTROL
THREE SURROUND MODES ARE AVAIL-
ABLE:
- MUSIC: 4 SELECTABLERESPONSES
- MOVIE AND SIMULATED:
256SELECTABLE RESPONSES
2 SPEAKER AND 2 RECORD ATTENU-
ATORS:
- 2 INDEPENDENT SPEAKERSAND 2
INDEPENDENT RECORD CONTROL
IN 1dB STEPFOR BALANCEFACILITY
- AVAILABILITYOF LOUDSPEAKER
EQUALIZATIONFIXEDBY EXTERNAL
COMPONENTS
- INDEPENDENT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL BUS
DESCRIPTION
The TDA7430/7431are volumetone (bass middle
and treble) balance (Left/Right) processors with
voice canceller for quality audio applications in
car radio and Hi-Fi systems.
They reproduce surround sound by using pro-
grammable phase shifters and a signal matrix.
Control of all the functionsis accomplishedby se-
rial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOSTechnology,
Low Distortion, Low Noise and DC stepping are
obtained.
September 1999
PIN CONNECTIONS
ORDERING NUMBERS:
TDA7430 (TQFP44)
TDA7431 (SDIP42)
SDIP42
TQFP44
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
R_OUT
DIG_GND
L_OUT
RECOUT_R
NBLO
RECOUT_L
NBLIN
L_IN
MIX
R_IN
37
36
35
34
33
32
31
30
29
28
27
26
25
D95AU219B
42
41
40
39
38
LPVC
NBRIN
NBRO
CREF
V
S
TREBLE_R
TREBLE_L
AGND
SDA
ADDR
SCL
24
23
22
LP1
HP1
HP2
VOUTREF
VAR_L
BASSO_L
VAR_R
BASSO_R
BASS_LO
BASS_LI
BASS_RO
BASS_RI
MIDDLE_LO
PS4
PS3
PS2
PS1
LP
MIDDLE_LI
MIDDLE_RO
MIDDLE_RI
1
2
3
5
6
4
7
8
9
10
17
11
18
19
20
21
22
44
43
42
41
39
40
38
37
36
35
34
28
27
26
24
23
25
33
32
31
29
30
VAR_L
REARIN
REAROUT
HP1
LP1
HP2.
BASS_LI
BASS_LO
BASSO_R
BASSO_L
VAR_R
B
B
M
M
M
M
T
T
A
S
S
L
P
P
P
V
S
P
C
R
R
R
L
L_IN4
RECOUT_L
RECOUT_R
R_OUT
DIG_GND
L_OUT
R_IN1
MIX
L_IN1
L_IN3
L_IN2
D95AU220B
12
13
14
15
16
1/21
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