TDA7439B Просмотр технического описания (PDF) - STMicroelectronics
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TDA7439B Datasheet PDF : 19 Pages
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ELECTRICAL CHARACTERISTICS (continued.)
Symbol
Parameter
AUDIO OUTPUTS
VCLIP
Clipping Level
RL
Output Load Resistance
RO
Output Impedance
VDC
DC Voltage Level
GENERAL
ENO
Output Noise
Et
Total Tracking Error
S/N
Signal to Noise Ratio
SC
Channel Separation Left/Right
d
Distortion
BUS INPUT
VIL
Input Low Voltage
VIH
Input High Voltage
IIN
Input Current
VO
Output Voltage SDA
Acknowledge
Test Condition
d = 0.3%
All gains = 0dB;
BW = 20Hz to 20KHz flat
AV = 0 to -24dB
AV = -24 to -47dB
All gains 0dB; VO = 1VRMS ;
AV = 0; VI = 1VRMS ;
VIN = 0.4V
IO = 1.6mA
TDA7439
Min. Typ. Max. Unit
2.1
2.6
VRMS
2
KΩ
10
40
70
Ω
3.5
3.8
4.1
V
5
15
µV
0
1
dB
0
2
dB
95
106
dB
80
100
dB
0.01 0.08
%
1
V
3
V
-5
0
5
µA
0.4
0.8
V
TEST CIRCUIT
L-IN1 11
0.47µF
100K
L-IN2 12
0.47µF
100K
L-IN3 13
0.47µF
100K
L-IN4 14
0.47µF
100K
R-IN1 10
0.47µF
R-IN2 9
0.47µF
R-IN3 8
0.47µF
R-IN4 7
0.47µF
100K
100K
100K
100K
2.2µF
5.6nF
2.7K
18nF
5.6K
22nF 100nF
100nF
MUXOUTL
INL TREBLE(L)
15
16
27
MOUT(L)
26
25
RM
BIN(L)
23
RB
BOUT(L)
24
G
VOLUME
TREBLE
MIDDLE
BASS
SPKR ATT
LEFT
LOUT
6
0/30dB
2dB STEP
I2CBUS DECODER + LATCHES
30
SCL
1
SDA
29
DIGGND
G
VOLUME
TREBLE
MIDDLE
BASS
INPUT MULTIPLEXER
+ GAIN
17
18
28
MUXOUTR
INR TREBLE(R)
RM
19
20
MOUT(R)
RB
21
BIN(R)
SPKR ATT
RIGHT
5
ROUT
VREF
3
SUPPLY
4
22
2
BOUT(R) CREF
VS
AGND
2.2µF
5.6nF
18nF
2.7K
22nF 100nF
5.6K
100nF
10µF
D95AU339B
®
5/19
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