TDA7440D Datasheet, PDF (4/17 Pages) STMicroelectronics – TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR

TDA7440D
Table 5. Electrical Characteristcs (continued)
Refer to the test circuit T_amb = 25°C, V_S = 9V, R_L = 10KΩ, R_G = 600Ω, all controls flat (G = 0dB), unless
otherwise specified.
Symbol
Parameter
AUDIO OUTPUTS
V_CLIP Clipping Level
R_L Output Load Resistance
R_O Output Impedance
V_DC DC Voltage Level
GENERAL
E_NO Output Noise
E_t Total Tracking Error
S/N Signal to Noise Ratio
S_C Channel Separation Left/Right
d
Distortion
BUS INPUT
V_IL Input Low Voltage
V_IH Input High Voltage
I_IN Input Current
V_O Output Voltage SDA
Acknowledge
Test Condition
d = 0.3%
All gains = 0dB;
BW = 20Hz to 20KHz flat
A_V = 0 to -24dB
A_V = -24 to -47dB
All gains 0dB; V_O = 1Vrms
A_V = 0; V_I = 1Vrms
V_IN = 0.4V
I_O = 1.6mA
Min. Typ. Max. Unit
2.1
2.6
Vrms
2
KΩ
10
30
50
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
Figure 4. Test Circuit
L-IN1 4
0.47µF
L-IN2 5
0.47µF
L-IN3 6
0.47µF
L-IN4 7
0.47µF
100K
100K
100K
100K
R-IN1 3
0.47µF
R-IN2 2
0.47µF
R-IN3 1
0.47µF
R-IN4 28
0.47µF
100K
100K
100K
100K
2.2µF
5.6nF
5.6K
100nF
100nF
MUXOUTL
INL TREBLE(L)
8
9
18
BIN(L)
14
R_B
BOUT(L)
15
G
VOLUME
TREBLE
BASS
SPKR ATT
LEFT
27
LOUT
0/30dB
2dB STEP
I²CBUS DECODER + LATCHES
21
SCL
22
SDA
20
DIG_GND
G
VOLUME
TREBLE
INPUT MULTIPLEXER
+ GAIN
10
11
19
MUXOUTR
INR TREBLE(R)
2.2µF
5.6nF
BASS
R_B
12
BIN(R)
SPKR ATT
RIGHT
V_REF
26
ROUT
SUPPLY
24
25 ^VS
AGND
13
BOUT(R)
23
CREF D98AU885
100nF
5.6K
100nF
10µF
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