參數(shù)資料
型號(hào): 7442
廠商: 意法半導(dǎo)體
英文描述: TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR
中文描述: 音調(diào)控制和環(huán)繞數(shù)字控制音頻處理器
文件頁(yè)數(shù): 1/16頁(yè)
文件大?。?/td> 218K
代理商: 7442
TDA7442
TDA7442D
TONE CONTROL AND SURROUND
DIGITALLY CONTROLLED AUDIO PROCESSOR
4 STEREO INPUTS
INPUT ATTENUATION CONTROL IN 0.5dB
STEP
TREBLE AND BASS CONTROL
TWO SURROUND MODE AVAILABLE WITH
4 SELECTABLE RESPONSES:
- MUSIC
- SIMULATED STEREO
TWO SPEAKER ATTENUATORS:
- 2 INDEPENDENT SPEAKER CONTROLS
IN 1dB STEPS FOR BALANCE FACILITY
- INDEPENDENT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL BUS
2 MONITOR OUTPUT (ONLY FOR TDA7442)
DESCRIPTION
The TDA7442/42D is volume tone (bass and
treble) balance (Left/Right) processors for quality
audio applications in TV and Hi-Fi systems.
It reproduces surround sound by using a pro-
grammable phase shifter. Control of all the func-
tions is accomplished by serial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the BIPOLAR/CMOS Technology used,
Low Distortion, Low Noise and DC stepping are
obtained.
January 2001
ORDERING NUMBER:
TDA7442D (SO28)
TDA7442 (SDIP32)
SO28
SDIP32
PIN CONNECTIONS
L_IN3
L_IN4
MUXOUTL
IN(L)
MUXOUT(R)
BIN(R)
IN(R)
BOUT(R)
BIN(L)
1
3
2
4
5
6
7
8
9
BOUT(L)
LP
PS1
TREBLE(R)
TREBLE(L)
SCL
SDA
DIG-GND
CREF
23
22
21
20
19
17
18
16
15
D98AU948
10
11
12
13
14
28
27
26
25
24
R_IN3
R_IN2
R_IN1
L_IN1
L_IN2
V
S
AGND
ROUT
LOUT
R_IN4
L-IN2
L-IN3
L-IN4
MUXOUT(L)
IN(L)
N.C.
MUXOUT(R)
IN(R)
BIN(R)
1
3
2
4
5
6
7
8
9
PS1
TREBLE-L
N.C.
DIGGND
TREBLE-R
SCL
SDA
CREF
V
S
27
26
25
24
23
21
22
20
19
D01AU1247
10
11
12
13
14
32
31
30
29
28
R-IN2
R-IN1
MONITOR(L)
MONITOR(R)
L-IN1
AGND
R-OUT
L-OUT
R-IN4
R-IN3
BIN(L)
BOUT(L)
17
16
BOUT(R)
LP
18
15
SO28
SDIP32
1/16
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