Analog passthrough characteristics, Cs42l56 analog passthrough characteristics – Cirrus Logic CS42L56 User Manual
Page 21
DS851F2
21
CS42L56
ANALOG PASSTHROUGH CHARACTERISTICS
Test Conditions (unless otherwise specified): Connections to the CS42L56 are shown in the
“Typical Connection Diagrams” on
; Input test signal is a 1 kHz sine wave through the passive input filter shown in
, PGA and HP/Line gain = 0 dB;
All Supplies = VA, VCP Mode; GND = AGND = 0 V; T
A
= +25
C; Measurement bandwidth is 20 Hz to 20 kHz; Sample Fre-
quency = 48 kHz; Measurement signal path is AINxx to HPOUTx or LINEOUTx.
COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
VA = 2.5 V
VA = 1.8 V
Parameter
Min
Typ
Max
Min
Typ
Max
Unit
Analog In to HP Amp (ADC is powered down)
R
L
= 10 k
(+2 dB Output Analog Gain)
Dynamic Range
A-weighted
unweighted
-
-
94
91
-
-
-
-
91
88
-
-
dB
dB
Total Harmonic Distortion + Noise
-1 dB
-20 dB
-60 dB
-
-
-
-70
-71
-31
-
-
-
-
-
-
-80
-68
-28
-
-
-
dB
dB
dB
Full-scale Input Voltage
-
0.80•VA
-
-
0.80•VA
-
Vpp
Full-scale Output Voltage
-
0.93•VA
-
-
0.93•VA
-
Vpp
Frequency Response
-
0/-0.3
-
-
0/-0.3
-
dB
R
L
= 16
(-4 dB Output Analog Gain)
Dynamic Range
A-weighted
unweighted
-
-
94
91
-
-
-
-
91
88
-
-
dB
dB
Total Harmonic Distortion + Noise
-1 dB
-20 dB
-60 dB
-
-
-
-70
-71
-31
-
-
-
-
-
-
-80
-68
-28
-
-
-
dB
dB
dB
Full-scale Input Voltage
-
0.80•VA
-
-
0.80•VA
-
Vpp
Output Power
-
12
-
-
6.5
-
mW
Frequency Response
-
0/-0.3
-
-
0/-0.3
-
dB
Analog In to Line Amp (ADC is powered down)
R
L
= 10 k
(+2 dB Output Analog Gain)
Dynamic Range
A-weighted
unweighted
-
-
94
91
-
-
-
-
91
88
-
-
dB
dB
Total Harmonic Distortion + Noise
-1 dB
-20 dB
-60 dB
-
-
-
-70
-71
-31
-
-
-
-
-
-
-80
-68
-28
-
-
-
dB
dB
dB
Full-scale Input Voltage
-
0.80•VA
-
-
0.80•VA
-
Vpp
Full-scale Output Voltage
-
0.89•VA
-
-
0.89•VA
-
Vpp
Frequency Response
-
0/-0.3
-
-
0/-0.3
-
dB
Parameter
Min
Typ
Max
Unit
Frequency Response 20 Hz to 20 kHz
Fs = 48.000 kHz
Fs = 44.118 kHz
-0.007
-0.081
-
-
+0.007
+0.081
dB
dB
Passband
to -0.05 dB corner
to -3 dB corner
-
-
0.48
0.49
-
-
Fs
Fs
Stopband
0.55
-
-
Fs
Stopband Attenuation
49
-
-
dB
Total Group Delay
-
6.5/Fs
-
s
De-emphasis Error
Fs = 44.118 kHz
-
-
+0.05/-0.25
dB