CS42L55 Datasheet, PDF (16/73 Pages) Cirrus Logic – Ultra Low Power, Stereo CODEC w/Class H Headphone Amp

CS42L55
ANALOG PASSTHROUGH CHARACTERISTICS
Test Conditions (unless otherwise specified): Connections to the CS42L55 are shown in the “Typical Connection Diagram” on
page 10; Input is a 1 kHz sine wave through the passive input filter shown in Figure 1, PGA and HP/Line gain = 0 dB; All Sup-
plies = VA, VCP Mode; GND = AGND = 0 V; T_A = +25 °C; Measurement bandwidth is 20 Hz to 20 kHz. Sample Frequency =
48 kHz.
VA = 2.5 V
VA = 1.8 V
Parameter
Min
Analog In to HP Amp (ADC is powered down)
R_L = 3 kΩ (+2 dB Output Analog Gain)(Note 12)
Dynamic Range
A-weighted ^-
unweighted ^-
Total Harmonic Distortion + Noise
-1 dB ^-
-20 dB -
-60 dB ^-
Full-scale Input Voltage
-
Full-scale Output Voltage
-
Passband Ripple
R_L = 16 Ω (-4 dB Output Analog Gain)(Note 12)
Dynamic Range
A-weighted -
unweighted ^-
Total Harmonic Distortion + Noise
-1 dB ^-
-20 dB ^-
-60 dB -
Full-scale Input Voltage
-
Output Power (Note 13)
-
Passband Ripple
-
Analog In to Line Amp (ADC is powered down)
R_L = 3 kΩ (+2 dB Output Analog Gain) (Note 12)
Dynamic Range
A-weighted ^-
unweighted ^-
Total Harmonic Distortion + Noise
-1 dB ^-
-20 dB -
-60 dB ^-
Full-scale Input Voltage
-
Full-scale Output Voltage
-
Passband Ripple
Typ
94
91
-70
-71
-31
0.80•VA
0.93•VA
0/-0.3
94
91
-70
-71
-31
0.80•VA
12
0/-0.3
94
91
-70
-71
-31
0.80•VA
0.89•VA
0/-0.3
Max
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Min
Typ
Max Unit
-
91
-
dB
-
88
-
dB
-
-80
-
dB
-
-68
-
dB
-
-28
-
dB
-
0.80•VA
-
Vpp
-
0.93•VA
-
Vpp
0/-0.3
dB
-
91
-
dB
-
88
-
dB
-
-80
-
dB
-
-68
-
dB
-
-28
-
dB
-
0.80•VA
-
Vpp
-
6.5
-
mW
-
0/-0.3
-
dB
-
91
-
dB
-
88
-
dB
-
-80
-
dB
-
-68
-
dB
-
-28
-
dB
-
0.80•VA
-
Vpp
-
0.89•VA
-
Vpp
0/-0.3
dB
COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
Parameter (Note 15)
Frequency Response 20 Hz to 20 kHz
Passband
Stopband
Stopband Attenuation (Note 16)
Total Group Delay
De-emphasis Error
Fs = 48.000 kHz
Fs = 44.118 kHz
to -0.05 dB corner
to -3 dB corner
Fs = 44.118 kHz
Min
-0.04
-0.14
-
-
0.55
49
-
-
Typ
Max Unit
-
+0.04
dB
-
+0.14
dB
0.48
-
Fs
0.49
-
Fs
-
-
Fs
-
-
dB
9/Fs
-
s
-
+0.05/-0.25 dB
Notes:
15. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 31 to 34 on
page 70) have been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.
16. Measurement bandwidth is from Stopband to 3 Fs.
16
DS773F1