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12
DS792F2
CS43L22
Confidential Draft
3/4/10
5.
See Figure 2. RL and CL reflect the recommended minimum resistance and maximum capacitance re-
quired for the internal op-amp's stability and signal integrity. In this circuit topology, CL will effectively
move the band-limiting pole of the amp in the output stage. Increasing this value beyond the recom-
mended 150 pF can cause the internal op-amp to become unstable.
ANALOG PASSTHROUGH CHARACTERISTICS
Test Conditions (unless otherwise specified): Input sine wave (relative to full-scale): 1 kHz through passive input filter;
Passthrough Amplifier and HP/Line Gain = 0 dB; All Supplies = VA; TA = +25°C; Sample Frequency = 48 kHz; Measurement
Bandwidth is 20 Hz to 20 kHz.
VA = 2.5 V
VA = 1.8 V
Parameters
Min
Typ
Max
Min
Typ
Max
Unit
Analog In to HP/Line Amp
RL = 10 kΩ
Dynamic Range
A-weighted
unweighted
-
-96
-93
-
-94
-91
-
dB
Total Harmonic Distortion + Noise
-1 dBFS
-20 dBFS
-60 dBFS
-
-70
-73
-33
-
-70
-71
-31
-
dB
Full-scale Input Voltage
-
0.91VA
-
0.91VA
-
Vpp
Full-scale Output Voltage
-
0.84VA
-
0.84VA
-
Vpp
Passband Ripple
-
0/-0.3
-
0/-0.3
-
dB
RL = 16 Ω
Dynamic Range
A-weighted
unweighted
-
-96
-93
-
-94
-91
-
dB
Total Harmonic Distortion + Noise
-1 dBFS
-20 dBFS
-60 dBFS
-
-70
-73
-33
-
-70
-71
-31
-
dB
Full-scale Input Voltage
-
0.91VA
-
0.91VA
-
Vpp
Full-scale Output Voltage
-
0.84VA
-
0.84VA
-
Vpp
Output Power
-
32
-
17
-
mW
Passband Ripple
-
0/-0.3
-
0/-0.3
-
dB
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