CS43L22 データシートの表示（PDF） - Cirrus Logic
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CS43L22 Datasheet PDF : 66 Pages
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Confidential Draft
3/4/10
CS43L22
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.
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
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
RL = 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 RL = 16 Ω or 10 kΩ
Output Parameters
(Note 4)
Modulation Index (MI) -
0.6787
-
Analog Gain Multiplier (G) -
0.6047
-
- 0.6787 -
V/V
- 0.6047 -
V/V
Full-scale Output Voltage (2•G•MI•VA) (Note 4)
Refer to Table “Headphone Output Power Characteris-
Vpp
tics” on page 14
Full-scale Output Power (Note 4)
Refer to Table “Headphone Output Power Characteristics” on
page 14
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 (RL)
Load Capacitance (CL)
(Note 5) 16
(Note 5) -
-
-
16
-
-
Ω
-
150
-
-
150
pF
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.
DS792F2
11
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