User Manual

Table Of Contents
DS680F2 15
CS42L52
3/1/13
ANALOG OUTPUT CHARACTERISTICS
Test conditions (unless otherwise specified): Input test signal is a full-scale 997 Hz sine wave; All Supplies = VA; T
A
= +25C;
Sample Frequency = 48 kHz; Measurement bandwidth is 20 Hz to 20 kHz; Test load R
L
= 10 k C
L
= 10 pFfor the line output
(see Figure 2); Test load R
L
= 16  C
L
= 10 pF (see Figure 2) for the headphone output; HP_GAIN[2:0] = 011; “Required Initial-
ization Settings” on page 37 written on power up.
6. One (least-significant bit) 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 75.
VA = 2.5 V VA = 1.8 V
Parameters
(Note 6) Min Typ Max Min Typ Max Unit
R
L
= 10 k
Dynamic Range
18- to 24-Bit A-weighted
unweighted
16-Bit A-weighted
unweighted
92
89
-
-
98
95
96
93
-
-
-
-
89
86
-
-
95
92
93
90
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise
18- to 24-Bit 0 dB
-20 dB
-60 dB
16-Bit 0 dB
-20 dB
-60 dB
-
-
-
-
-
-
-86
-75
-35
-86
-73
-33
-80
-
-29
-
-
-
-
-
-
-
-
-
-88
-72
-32
-88
-70
-30
-82
-
-26
-
-
-
dB
dB
dB
dB
dB
dB
R
L
= 16
Dynamic Range
18- to 24-Bit A-weighted
unweighted
16-Bit A-weighted
unweighted
92
89
-
-
98
95
96
93
-
-
-
-
89
86
-
-
95
92
93
90
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise
18- to 24-Bit 0 dB
-20 dB
-60 dB
16-Bit 0 dB
-20 dB
-60 dB
-
-
-
-
-
-
-75
-75
-35
-75
-73
-33
-69
-
-29
-
-
-
-
-
-
-
-
-
-75
-72
-32
-75
-70
-30
-69
-
-26
-
-
-
dB
dB
dB
dB
dB
dB
Other Characteristics for R
L
= 16
or 10 k
Output Parameters Modulation Index (MI)
(Note 7) Analog Gain Multiplier (G)
-
-
0.6787
0.6047
-
-
-
-
0.6787
0.6047
-
-
Full-scale Output Voltage (2•G•MI•VA) (Note 7) See “Line Output Voltage Level Characteristics” on
page 19
Vpp
Full-scale Output Power (Note 7) See “Headphone Output Power Characteristics” on page 18
Interchannel Isolation (1 kHz) 16
10 k
-
-
80
95
-
-
-
-
80
93
-
-
dB
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
) (Note 8) 16 - - 16 - -
Load Capacitance (C
L
) (Note 8) - - 150 - - 150 pF