TDA7449L_04 Datasheet, PDF (4/14 Pages) STMicroelectronics – LOW COST DIGITALLY CONTROLLED AUDIO PROCESSOR

TDA7449L
Table 5. Electrical Characteristcs (continued)
AUDIO OUTPUTS
V_CLIP
Clipping Level
d = 0.3%
R_L
Output Load Resistance
R_O
Output Impedance
V_DC
DC Voltage Level
GENERAL
E_NO
Output Noise
All gains = 0dB;
BW = 20Hz to 20KHz flat
E_t
Total Tracking Error
A_V = 0 to -24dB
A_V = -24 to -47dB
S/N
Signal to Noise Ratio
All gains 0dB; V_O = 1V_RMS ;
S_C
Channel Separation Left/Right
d
Distortion
A_V = 0; V_I = 1V_RMS ;
BUS INPUT
V_IL
Input Low Voltage
V_IH
Input High Voltage
I_IN
Input Current
V_IN = 0.4V
V_O
Output Voltage SDA
Acknowledge
I_O = 1.6mA
2.1 2.6
2
V_RMS
KΩ
10
40
70
W
3.8
V
5
15
µV
0
1
dB
0
2
dB
106
dB
80
100
dB
0.01 0.08 %
1
V
3
V
-5
5
µA
0.4
0.8
V
Figure 4. Test Circuit
IN1L
J3
RCA
1
2
J4
3
4
5
CON3
GND
IN1L
GND
IN2L
GND
IN1R
J2
RCA
L-IN1 8
C3 0.47µF
L-IN2 9
C4 0.47µF
100K
100K
IN2R
1
GND
2
J1
IN1R
3
GND
4
CON
R-IN2 6
C1 0.47µF
R-IN1 7
C2 0.47µF
100K
100K
MOUTL
1
GND
2
J5
MOUTR
3
GND
4
CON4
J5
MUXOUTL
10
C9
5.6nF
R2 2K
150nF
330nF
TREBLE(L)
16
C7 C8
BIN(L)
15
BOUT(L)
14
RB
5
LOUT
G
VOLUME
TREBLE
BASS
SPKR ATT
LEFT
J8
OUT_R
J9
OUT_L
1
OUT_L
2
J10
3
OUT_ R
4
CON4
0/30dB
2dB STEP
I²CBUS DECODER + LATCHES
18 DIG_GND
19 SCL
20 SDA
+9 V
JP1
JUMPER
1
2
J6
3
4
CON4
G
VOLUME
TREBLE
INPUT MULTIPLEXER
+ GAIN
11
MUXOUTR
17
TREBLE(R)
BASS
SPKR ATT
RIGHT
VREF
SUPPLY
RB
12
13
BOUT(R)
C5 C6
1
CREF
4
ROUT
3
R3 30
2 AGND
VS
C13
100nF
C12
22µF
1
+V8
J7
2
GND
+9V
CON2
C10
5.6nF
150nF 330nF
R1 2K
C11
10µF
D98AU849A
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