參數(shù)資料
型號: TDA7420
廠商: STMICROELECTRONICS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: 14 X 14 MM, TQFP-64
文件頁數(shù): 25/29頁
文件大?。?/td> 230K
代理商: TDA7420
ELECTRICAL CHARACTERISTICS (continued.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
TREBLE CONTROL
CRANGE
Control Range
+17
+18
+19
dB
ASTEP
Step Resolution
0.5
1
1.5
dB
RT
Internal Feedback Resistance
37
50
63
K
SPEAKER ATTENUATORS
CRANGE
Control Range
79
dB
ASTEP
Step Resolution
AV = 0 to -40dB
0.5
1
1.5
dB
AMUTE
Output Mute Attenuation
80
100
dB
EA
Attenuation Set Error
AV = 0 to -40dB
1.50
dB
VDC
DC Step
Adjacent Attenuation Steps
0.1
3
mV
AUDIO OUTPUTS
VCLIP
Clipping Level
d = 0.3%
2.0
2.5
VRMS
RL
Output Load Resistance
2
K
ROUT
Output Impedance
100
200
300
VDC
DC Voltage Level
3.35
3.6
3.85
V
GENERAL
ENO
Output Noise
BW = 20Hz to 20KHz, flat
Output Muted
All gains = 0dB
4.0
5.0
15
V
S/N
Signal to Noise Ratio
All gains 0dB; VO =1VRMS ;
106
dB
d
Distortion
VI =1VRMS ;
0.01
0.08
%
SC
Channel Separation Left/Right
80
95
dB
ET
Total Tracking Error
AV = 0 to -20dB;
0
1
dB
AV = -20 to -40dB;
0
2
dB
BUS INPUT
VIL
Input Low Voltage
1V
VIH
Input High Voltage
3
V
IIN
Input Current
VIN = 0.4V
-5
5
A
VO
Output Voltage SDA
Acknowledge
IO = 1.6mA
0.1
0.4
V
SUPPLY
VIL
Supply Voltage
6.5
8.5
10.0
V
IS
Supply Current
Stereo Decoder = ON
25
33
41
mA
Stereo Decoder = OFF
20
28
35
mA
SVR
Ripple Rejection
Cref =22
F
Audioprocessor
80
dB
Stereo Decoder + Audioprocessor
60
dB
TDA7420
5/29
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