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TDA7448 数据表(PDF) 3 Page - STMicroelectronics

部件名 TDA7448
功能描述  6 CHANNEL VOLUME CONTROLLER
PDF  13 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7448 数据表(HTML) 3 Page - STMicroelectronics

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TDA7448
ELECTRICAL CHARACTERISTCS
(refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ, RG = 600Ω, unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
SUPPLY
VS
Supply Voltage
4.75
9
10
V
IS
Supply Current
7
mA
SVR
Ripple Rejection
80
dB
INPUT STAGE
RIN
Input Resistance
35
50
65
K
Ω
VCL
Clipping Level
THD = 0.3%
2
2.5
Vrms
SIN
Input Separation
The selected input is grounded
through a 2.2
µ capacitor
90
dB
VOLUME CONTROL
CRANGE
Control Range
79
dB
AVMAX
Max. Attenuation
79
dB
ASTEP
Step Resolution
0.5
1
1.5
dB
EA
Attenuation Set Error
AV = 0 to -24dB
-1
0
1
dB
AV = -24 to -79dB
-2.0
0
2.0
dB
ET
Tracking Error
AV = 0 to -24dB
-1
0
1
dB
AV = -24 to -79dB
-2
0
2
dB
VDC
DC Step
adyacent attenuation steps
-3
0
3
mV
Amute
Mute Attenuation
90
db
AUDIO OUTPUTS
VCLIP
Clipping Level
THD = 0.3%
2
2.5
Vrms
RL
Output Load Resistance
2
K
Ω
VDC
DC Voltage Level
4.5
V
GENERAL
ENO
Output Noise
BW = 20Hz to 20KHz
All gains = 0dB, Flat
10
15
µV
S/N
Signal to Noise Ratio
All gains = 0dB; VO = 1Vrms
100
dB
SC
Channel Separation left/Right
80
90
dB
THD
Distortion
AV = 0; VI = 1Vrms
0.01
0.1
%
BUS INPUT
VIl
Input Low Voltage
1V
VIH
Input High Voltage
2.5
V
IIN
Input Current
VIN = 0.4V
-5
5
µA
VO
Output Voltage SDA
Achnowledge
IO = 1.6mA
0.4
0.8
V



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