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DS792F2
11
CS43L22
Confidential Draft
3/4/10
ANALOG OUTPUT CHARACTERISTICS
Test conditions (unless otherwise specified): Input test signal is a full-scale 997 Hz sine wave; All Supplies = VA; TA = +25°C;
Sample Frequency = 48 kHz; Measurement bandwidth is 20 Hz to 20 kHz; Test load RL = 10 kΩ, CL = 10 pF for the line output
(see Figure 2); Test load RL = 16 Ω, CL = 10 pF (see Figure 2) for the headphone output; HP_GAIN[2:0] = 011.
3.
One (least-significant bit) LSB of triangular PDF dither is added to data.
4.
Full-scale output voltage and power is determined by the gain setting, G, in register “Headphone Analog
Gain” on page 43. 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 18 - 21 on page 60.
VA = 2.5 V
VA = 1.8 V
Parameters (Note 3)
Min
Typ
Max
Min
Typ
Max
Unit
RL = 10 kΩ
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
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
RL = 16 Ω
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
Total Harmonic Distortion + Noise
18 to 24-Bit
0 dB
-20 dB
-60 dB
16-Bit
0 dB
-20 dB
-60 dB
-
-75
-35
-75
-73
-33
-69
-
-29
-
-75
-72
-32
-75
-70
-30
-69
-
-26
-
dB
Other Characteristics for RL = 16 Ω or 10 kΩ
Output Parameters
Modulation Index (MI)
(Note 4)
Analog Gain Multiplier (G)
-
0.6787
0.6047
-
0.6787
0.6047
-
V/V
Full-scale Output Voltage (2GMIVA) (Note 4)
Refer to Table “Headphone Output Power Characteris-
tics” on page 14
Vpp
Full-scale Output Power (Note 4)
Refer to Table “Headphone Output Power Characteristics” on
page 14
Interchannel Isolation (1 kHz)
16
Ω
10 k
Ω
-
80
95
-
80
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 (RL)
(Note 5)
16
-
16
-
Ω
Load Capacitance (CL)
(Note 5)
-
150
-
150
pF
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