TDA7318 Datasheet, PDF (5/14 Pages) STMicroelectronics – DIGITAL CONTROLLED STEREO AUDIO PROCESSOR

TDA7318
ELECTRICAL CHARACTERISTICS (continued)
Symbol
AUDIO OUTPUTS
Parameter
Test Condition
Min. Typ. Max. Unit
V_OCL
R_L
C_L
R_OUT
V_OUT
GENERAL
Clipping Level
Output Load Resistance
Output Load Capacitance
Output resistance
DC Voltage Level
d = 0.3%
2
2.5
Vrms
2
KΩ
10
nF
30
75
120
Ω
4.2
4.5
4.8
V
e_NO
Output Noise
S/N
Signal to Noise Ratio
d
Distortion
Sc
Channel Separation left/right
Total Tracking error
BUS INPUTS
BW = 20-20KHz, flat
output muted
all gains = 0dB
A curve all gains = 0dB
all gains = 0dB; VO = 1Vrms
A_V = 0, V_IN = 1Vrms
A_V = -20dB V_IN = 1Vrms
V_IN = 0.3Vrms
A_V = 0 to -20dB
-20 to -60 dB
2.5
µV
5
15
µV
3
µV
106
dB
0.01 0.1
%
0.09 0.3
%
0.04
%
80
103
dB
0
1
dB
0
2
dB
V_IL
Input Low Voltage
V_IH
Input High Voltage
I_IN
Input Current
V_O
Output Voltage SDA
Acknowledge
I_O = 1.6mA
1
V
3
V
-5
+5
µA
0.4
V
Notes:
(1) Bass and Treble response see attached diagram (fig.19). The center frequency and quality of the resonance behaviour can be choosen by
the external circuitry. A standard first order bass response can be realized by a standard feedback network
(2) The selected input is grounded thru the 2.2µF capacitor.
Figure 1: Noise vs. Volume/Gain Settings
Figure 2: Signal to Noise Ratio vs. Volume
Setting
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