CS42L50 Datasheet, PDF (7/48 Pages) Cirrus Logic – Low Voltage, Stereo CODEC with headphone Amp

CS42L50
ANALOG OUTPUT CHARACTERISTICS (T_A = 25° C; Logic "1" = VL = 1.8 V; Logic "0" =
GND = 0 V; Full-Scale Output Sine Wave, 997 Hz; MCLK = 12.288 MHz; Measurement Bandwidth 10 Hz to
20 kHz, unless otherwise specified; Fs for Single Speed Mode = 48 kHz, SCLK = 3.072 MHz. Fs for Double Speed
Mode = 96 kHz, SCLK = 6.144 MHz. Test load R_L = 10 kΩ, C_L = 10 pF (see Figure 23) for line out, R_L = 16 Ω,
C_L = 10 pF (see Figure 24) for headphone out.
Single Speed Mode Double Speed Mode
Parameter
Symbol Min Typ Max Min Typ Max Unit
Line Output Dynamic Performance for VA = 1.8 V
Dynamic Range
18 to 24-Bit
16-Bit
(Note 6)
unweighted
A-Weighted
unweighted
A-Weighted
TBD 91
TBD 94
-
89
-
92
- TBD 89
- TBD 92
-
-
87
-
-
90
- dB
- dB
- dB
- dB
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
(Note 6) THD+N
0 dB
-
-20 dB
-
-60 dB
-
0 dB
-
-20 dB
-
-60 dB
-
-80 TBD -
-71
-
-
-31
-
-
-78
-
-
-69
-
-
-29
-
-
-80 TBD dB
-69
- dB
-29
- dB
-78
- dB
-67
- dB
-27
- dB
Interchannel Isolation
(1 kHz)
-
100
-
-
100
- dB
Headphone Output Dynamic Performance for VA = VA_HP = 1.8 V
Dynamic Range
18 to 24-Bit
16-Bit
(Note 6)
unweighted
A-Weighted
unweighted
A-Weighted
TBD 88
TBD 91
-
86
-
89
- TBD 88
- TBD 91
-
-
86
-
-
89
- dB
- dB
- dB
- dB
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
(Note 6) THD+N
0 dB
-
-20 dB
-
-60 dB
-
0 dB
-
-20 dB
-
-60 dB
-
-82 TBD -
-68
-
-
-28
-
-
-80
-
-
-66
-
-
-26
-
-
-85 TBD dB
-68
- dB
-28
- dB
-83
- dB
-66
- dB
-26
- dB
Interchannel Isolation
(1 kHz)
-
66
-
-
66
- dB
Notes: 1. Referenced to typical full-scale input voltage.
2. Filter response is not tested but is guaranteed by design.
3. Filter characteristics scale with output sample rate. For output sample rates, Fs, other than 48 kHz, the
0.01 dB passband edge is 0.4535x Fs and the stopband edge is 0.625x Fs.
4. The analog modulator samples the input at 6.144 MHz for an Fs equal to 48 kHz. There is no rejection
of input signals which are multiples of the sampling frequency ( n x 6.144 MHz ±21.8 kHz where
n = 0,1,2,3...).
5. Group delay for Fs = 48 kHz, t_gd = 10/48 kHz = 208 µs.
6. One-half LSB of triangular PDF dither is added to data.
DS544PP1
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