參數(shù)資料
型號: TDA7346
廠商: 意法半導(dǎo)體
英文描述: Digitally Controlled Surround Sound Matrix(數(shù)控環(huán)繞聲矩陣)
中文描述: 數(shù)控矩陣環(huán)繞聲(數(shù)控環(huán)繞聲矩陣)
文件頁數(shù): 1/14頁
文件大小: 122K
代理商: TDA7346
TDA7346
DIGITAL CONTROLLED SURROUND SOUND MATRIX
1 STEREOINPUT
THREE INDEPENDENT SURROUND MODES
ARE AVAILABLE MOVIE, MUSIC AND SIMU-
LATED
- MUSIC:4 SELECTABLERESPONSES
- MOVIE ANDSIMULATED:
256SELECTABLE RESPONSES
TWO INDEPENDENT INPUT ATTENUATORS
IN 0.31dB FOR BALANCEFACILITY
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL BUS
DESCRIPTION
The TDA7346 reproduces surround sound by us-
ing phase shifters and a signal matrix. Control of
all the functionsis accomplished by serial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
February 1997
HP1
HP2
-
+
-
+
SUPPLY
RPS1
PS1
90Hz
MUSIC
EFFECT
CONTROL
I
2
C
BUS
DECODER
LATCHES
Lout
DIG GND
SCL
VS
AGND
CREF
LP
D94AU122A
L-in
100K
100nF
LP1
RLP1
RHP1
5.6nF
680nF
-
+
R5
R6
+
SIM
MOVIE/
MUSIC
L-R
100nF
PS1
PS2
4KHz
4.7nF
PS2
PS3
400Hz
22nF
PS3
PS4
400Hz
22nF
PS4
RPS2
RPS3
RPS4
OFF
LPF
9KHz
MIXING
AMP
MIXING
AMP
PHASE SHIFTER
MOVIE/SIM
R-in
100nF
100K
C5
22
μ
F
1.2nF
SDA
ADDR
Rout
REAR
BLOCK DIAGRAM
ORDERING NUMBER:
TDA7346 (DIP20)
TDA7346D (SO20)
SO20
DIP20
1/14
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