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參數(shù)資料
| 型號： | TDA7438D |
| 廠商： | 意法半導體 |
| 英文描述： | THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR |
| 中文描述： | 三頻段數(shù)字控制音頻處理器 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 150K |
| 代理商： | TDA7438D |
TDA7438
THREE BANDS
DIGITALLY CONTROLLED AUDIO PROCESSOR
INPUT MULTIPLEXER
- 3 STEREO INPUTS
- SELECTABLEINPUT GAINFOR OPTIMAL
ADAPTATIONTO DIFFERENT SOURCES
ONE STEREO OUTPUT
TREBLE, MIDDLE AND BASS CONTROL IN
2.0dB STEPS
VOLUMECONTROL IN 1.0dB STEPS
TWOSPEAKER ATTENUATORS:
- TWOINDEPENDENTSPEAKERCONTROL
IN 1.0dBSTEPS FOR BALANCEFACILITY
- INDEPENDENT MUTE FUNCTION
ALL FUNCTION ARE PROGRAMMABLE VIA
SERIALBUS
DESCRIPTION
The TDA7438 is a volume tone (bass, middle and
treble) balance (Left/Right) processor for quality
audio applicationsin car-radio and Hi-Fi systems.
Selectable input gain is provided. Control of all
the functions is accomplishedby serial 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.
April 1999
0/30dB
2dB STEP
MUXOUTL
INL
VOLUME
VOLUME
TREBLE
TREBLE
TREBLE(L)
MIDDLE
MIDDLE
MUXOUTR
INR
TREBLE(R)
BOUT(L)
SPKR ATT
LEFT
LOUT
SCL
SDA
DIG_GND
ROUT
D96AU488A
I
2
CBUS DECODER + LATCHES
100K
100K
100K
G
L-IN1
L-IN2
L-IN3
100K
100K
100K
R-IN1
R-IN2
R-IN3
G
INPUT
MULTIPLEXER
+ GAIN
MOUT(L)
BASS
BIN(L)
BASS
SPKR ATT
RIGHT
MIN(R) MOUT(R)
BOUT(R)
BIN(R)
SUPPLY
CREF
AGND
V
S
MIN(L)
27
3
4
5
2
1
28
21
22
20
26
24
25
8
9
19
10
11
12
13
23
6
7
18
17
16
14
15
R
M
R
B
R
M
R
B
V
REF
BLOCK DIAGRAM
ORDERING NUMBER:
TDA7438D (SO28)
TDA7438 (DIP28)
SO28
DIP28
1/17
相關PDF資料 |
PDF描述 |
|---|---|
| TDA7439 | THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7439B | THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7439D | THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7439DS | THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7440 | TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7438D013TR | 功能描述:音頻 DSP 3-Band Digital Cont RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TDA7439 | 功能描述:音頻 DSP 3-Band Digital Cont RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TDA7439_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three-band digitally-controlled audio processor |
| TDA7439B | 功能描述:音頻 DSP 3-Band Digital Cont RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TDA7439D | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR |
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