CS42L52 Datasheet, PDF (15/82 Pages) Cirrus Logic – Low Power, Stereo CODEC w/Headphone & Speaker Amps

CS42L52
ANALOG OUTPUT CHARACTERISTICS (COMMERCIAL - CNZ)
(Test conditions (unless otherwise specified): Input test signal is a full-scale 997 Hz sine wave; VL = VD = VHP = 1.8 V; T_A =
+25°C; Measurement bandwidth is 10 Hz to 20 kHz; Sample Frequency = 48 kHz; test load R_L = 10 kΩ, C_L = 10 pF for the line
output (see Figure 2), and test load R_L = 16 Ω, C_L = 10 pF (see Figure 2) for the headphone output. HP_GAIN[2:0] = 011.)
VA = 2.5 V
VA = 1.8 V
Parameters (Note 6)
Min
Typ Max Min Typ Max Unit
R_L = 10 kΩ
Dynamic Range
18 to 24-Bit
16-Bit
A-weighted 92
98
unweighted 89
95
A-weighted -
96
unweighted -
93
-
89
95
-
dB
-
86
92
-
dB
-
-
93
-
dB
-
-
90
-
dB
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
0 dB -
-20 dB -
-60 dB -
0 dB -
-20 dB -
-60 dB -
-86
-80
-
-88 -82
dB
-75
-
-
-72
-
dB
-35
-29
-
-32 -26
dB
-86
-
-
-88
-
dB
-73
-
-
-70
-
dB
-33
-
-
-30
-
dB
R_L = 16 Ω
Dynamic Range
18 to 24-Bit
16-Bit
A-weighted 92
98
unweighted 89
95
A-weighted -
96
unweighted -
93
-
89
95
-
dB
-
86
92
-
dB
-
-
93
-
dB
-
-
90
-
dB
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
0 dB -
-20 dB -
-60 dB -
0 dB -
-20 dB -
-60 dB -
-75
-69
-
-75 -69
dB
-75
-
-
-72
-
dB
-35
-29
-
-32 -26
dB
-75
-
-
-75
-
dB
-73
-
-
-70
-
dB
-33
-
-
-30
-
dB
Other Characteristics for R_L = 16 Ω or 10 kΩ
Output Parameters
Modulation Index (MI) -
0.6787
-
(Note 7)
Analog Gain Multiplier (G)
0.6047
- 0.6787 -
0.6047
Full-scale Output Voltage (2•G•MI•VA) (Note 7)
Refer to Table “Line Output Voltage Level Characteris-
Vpp
tics” on page 18
Full-scale Output Power (Note 7)
Refer to Table “Headphone Output Power Characteristics” on
page 19
Interchannel Isolation (1 kHz)
16 Ω -
80
-
-
80
-
dB
10 kΩ -
95
-
-
93
-
dB
Speaker Amp to HP Amp Isolation
-
80
-
-
80
-
dB
Interchannel Gain Mismatch
-
0.1
0.25
-
0.1 0.25 dB
Gain Drift
-
±100
-
-
±100
- ppm/°C
AC-Load Resistance (R_L)
Load Capacitance (C_L)
(Note 8) 16
(Note 8) -
-
-
16
-
-
Ω
-
150
-
-
150
pF
6. One-half LSB of triangular PDF dither is added to data.
7. Full-scale output voltage and power is determined by the gain setting, G, in register “Headphone Analog
Gain” on page 51. High gain settings at certain VA and VHP supply levels may cause clipping when the
audio signal approaches full-scale, maximum power output, as shown in Figures 22 - 25 on page 76.
DS680A1
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