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参数资料
| 型号： | TDA7439B |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP28 |
| 封装： | DIP-28 |
| 文件页数： | 1/19页 |
| 文件大小： | 169K |
| 代理商： | TDA7439B |
TDA7439
THREE BANDS
DIGITALLY CONTROLLED AUDIO PROCESSOR
INPUT MULTIPLEXER
- 4 STEREO INPUTS
- SELECTABLE INPUT GAIN FOR OPTIMAL
ADAPTATION TO DIFFERENT SOURCES
ONE STEREO OUTPUT
TREBLE, MIDDLE AND BASS CONTROL IN
2.0dB STEPS
VOLUME CONTROL IN 1.0dB STEPS
TWO SPEAKER ATTENUATORS:
- TWO INDEPENDENT SPEAKER CONTROL
IN 1.0dB STEPS FOR BALANCE FACILITY
- INDEPENDENT MUTE FUNCTION
ALL FUNCTION ARE PROGRAMMABLE VIA
SERIAL BUS
DESCRIPTION
The TDA7439 is a volume tone (bass, middle and
treble) balance (Left/Right) processor for quality
audio applications in car-radio and Hi-Fi systems.
Selectable input gain is provided. Control of all
the functions is accomplished by serial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained
April 1999
0/30dB
2dB STEP
MUXOUTL
INL
VOLUME
TREBLE
TREBLE(L)
MIDDLE
MUXOUTR
INR
TREBLE(R)
BOUT(L)
SPKR ATT
LEFT
LOUT
SCL
SDA
DIG_GND
ROUT
D95AU342B
I
2CBUS DECODER + LATCHES
100K
G
L-IN1
L-IN2
L-IN3
L-IN4
100K
R-IN1
R-IN2
R-IN3
R-IN4
G
INPUT MULTIPLEXER
+ GAIN
MOUT(L)
BASS
BIN(L)
BASS
SPKR ATT
RIGHT
MIN(R) MOUT(R)
BOUT(R)
BIN(R)
SUPPLY
CREF
AGND
VS
MIN(L)
6
11
12
13
14
10
9
8
7
30
1
29
5
3
4
17
18
28
19
20
21
22
2
15
16
27
26
25
23
24
R
M
R
B
RM
RB
V
REF
BLOCK DIAGRAM (TDA7439)
ORDERING NUMBERS: TDA7439 (SDIP30)
TDA7439B (DIP28)
TDA7439D (SO28)
SDIP30
DIP28
SO28
1/19
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| TDA7440D | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| TDA7440D013TR | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7439D | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7439DS | 功能描述:音频 DSP 3-Band Digital Cont RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TDA7439DS_07 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Three-band digitally-controlled audio processor |
| TDA7439DS13TR | 功能描述:音频 DSP 3-Band Digital Cont RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TDA7440 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR |
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