Cirrus Logic CS42L73 - Manual (Page 29)

DS882F1 29
CS42L73
SERIAL PORT TO STEREO LINE OUTPUT CHARACTERISTICS
Test conditions (unless otherwise specified): Connections to the CS42L73 are shown in the “Typical Connection Diagram” on
page 17 ; Input test signal is a 24-bit full-scale 997 Hz sine wave with 1 LSB of triangular PDF dither applied; GND = AGND =
PGND = CPGND = DGND = 0 V; all voltages are with respect to ground (GND); VA = VCP = 1.80 V; T
A
= +25 C; VCP Mode;
Measurement Bandwidth is 20 Hz to 20 kHz; Fs = 48 kHz (Note 10) ; ASP is used and is in slave mode with Fs
ext
= 48 kHz; test
loading is configured as per Figure 6 on page 29 (R
L
and C
L
as indicated in the table below for R
L(Min)
and C
L(Max)
); Mixer Atten-
uation and Digital Volume = 0 dB, Analog Gain = +2 dB; Digital and Analog Mutes are disabled.
Notes:
38. The full-scale output voltage includes attenuation due to the Stereo Line Output Resistance (R
OUT
).
Parameters (Note 2) Min Typ Max Units
(Analog Gain = +2 dB) (Note 30)
Dynamic Range
18 to 24-Bit
A-weighted
unweighted
16-Bit
A-weighted
unweighted
91
88
88
85 97
94
94
91 -
-
-
- dB
dB
dB
dB
Total Harmonic Distortion + Noise (Note 31) (Note 32)
18 to 24-Bit 0 dBFS
-20 dBFS
-60 dBFS
16-Bit 0 dBFS
-20 dBFS
-60 dBFS
-
-
-
-
-
- -86
-74
-34
-84
-71
-31 -80
-
-28
-78
-
-25
dB
dB
dB
dB
dB
dB
Full-scale Output Voltage (Note 32) (Note 38) 1.50•VA 1.58•VA 1.66•VA V
PP
Other Characteristics
Interchannel Isolation
(Note 34) - 90 - dB
Interchannel Gain Mismatch (Note 34) - ±0.1 ±0.25 dB
Output Offset Voltage (DAC to LINEOUTx) Analog mute enabled
0 dB analog gain
-
- ±0.1
±0.3 ±0.5
±1.0 mV
mV
Gain Drift - ±100 - ppm/°C
Output Resistance (R
OUT
) - 100 - 
Load Resistance (R
L
) (Note 35) 3 - - k 
Load Capacitances (C
L
) (Note 35) - - 150 pF
PSRR with 100 mV
PP
signal AC-coupled to VA supply 217 Hz
- Analog Gain = 0 dB; Input test signal held low (all zeros data) 1 kHz
(Note 8) (Note 36) 20 kHz
-
-
- 70
70
70 -
-
- dB
dB
dB
PSRR with 100 mV
PP
signal AC-coupled to VCP supply 217 Hz
- Analog Gain = 0 dB; Input test signal held low (all zeros data) 1 kHz
(Note 8) (Note 36) 20 kHz
-
-
- 85
85
65 -
-
- dB
dB
dB
Test Load
LINEOUTx
CPGND/AGND
C
L
LINEO_REF
R
L Measurement
Device
-
+
Figure 6. Line Output Test Configuration