CS42L56 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS42L56' PDF : 92 Pages View PDF
CS42L56
LINE OUTPUT CHARACTERISTICS
Test conditions (unless otherwise specified): Connections to the CS42L56 are shown in the “Typical Connection Diagrams” on
page 11; Input test signal is a full-scale 997 Hz sine wave; All Supplies = VA, VCP Mode; GND = AGND = 0 V; TA = +25C;
Measurement bandwidth is 20 Hz to 20 kHz; Sample Frequency = 48 kHz; Test load RL = 10 k CL = 150 pF (see Figure 6 on
page 21); Measurement signal path is SDIN to LINEOUTx.
Parameter (Note 15)
(+2 dB Analog Gain) (Note 14)
Dynamic Range
18 to 24-Bit
16-Bit
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
Full-scale Output Voltage
Other Characteristics
Interchannel Isolation
Interchannel Gain Mismatch
Output Offset
(Note 17)
Gain Drift
Output Impedance
Load Resistance (RL)
Load Capacitance (CL)
VA = 2.5 V
VA = 1.8 V
Min Typ Max Min Typ Max Unit
A-weighted 93
99
-
91
97
-
dB
unweighted 90
96
-
88
94
-
dB
A-weighted -
96
-
-
94
-
dB
unweighted -
94
-
-
92
-
dB
(Note 16)
0 dB -
-84
-78
-
-86
-80
dB
-20 dB -
-76
-
-
-74
-
dB
-60 dB -
-36
-30
-
-34
-28
dB
0 dB -
-82
-
-
-84
-
dB
-20 dB -
-74
-
-
-72
-
dB
-60 dB -
-34
-
-
-32
-
dB
(Note 17) 1.50•VA 1.58•VA 1.71•VA 1.50•VA 1.58•VA 1.71•VA VPP
(Note 17) -
90
-
-
90
-
dB
(Note 17) -
0.1
0.32
-
0.1
0.32
dB
Mute -
0 dB Analog Gain -
0.5
1.0
-
3.6 ±14.6
-
0.5
1.0
mV
2.8 ±10.6 mV
(Note 17) -
±100
-
-
±100
- ppm/°C
-
100
-
-
100
-
(Note 17) 10
-
-
10
-
-
k
(Note 17) -
-
150
-
-
150
pF
Notes:
14. The analog gain setting (“Headphone Volume Control” on page 84 or “Line Volume Control” on
page 84) must be configured as indicated to achieve the specified output characteristics.
15. One LSB of triangular PDF dither is added to data.
16. VCP settings lower than VA reduces the headroom of the headphone amplifier. As a result, the speci-
fied THD+N performance at full-scale output voltage and power may not be achieved.
17. See Figure 6 and Figure 7. Refer to “Parameter Definitions” on page 91.
18. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 45 to Note 48
on page 90) have been normalized to Fs and can be denormalized by multiplying the X-axis scale by Fs.
19. Measurement bandwidth is from Stopband to 3 Fs.
DS851F2
19
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