Cirrus Logic CS4385A - Manual (Page 9)

DS837F2 9
CS4385A
DAC ANALOG CHARACTERISTICS - COMMERCIAL (-CQZ)
Test Conditions (unless otherwise specified): VA = VLS = VLC = 5 V; VD = 2.5 V; T
A
= 25°C; Full-scale 997 Hz
input sine wave (Note 1) ; Tested under maximum AC-load resistance ; Valid with FILT+ and VQ capacitors as
shown in “Typical Connection Diagram” on page 19 ; Measurement Bandwidth 10 Hz to 20 kHz.
Notes:
1. One-half LSB of triangular PDF dither is added to data.
2. Performance limited by 16-bit quantization noise.
3. V
FS
is tested under load R
L
and includes attenuation due to Z
OUT
.
Parameters Symbol Min Typ Max Unit
Fs = 48 kHz, 96 kHz, 192 kHz and DSD
Dynamic Range 24-bit A-weighted
unweighted
16-bit A-weighted
(Note 2) unweighted
108
105
-
-
114
111
97
94
-
-
-
- dB
dB
dB
dB
Total Harmonic Distortion + Noise 24-bit
0 dB
-20 dB
-60 dB
(Note 2) 16-bit 0 dB
-20 dB
-60 dB
THD+N
-
-
-
-
-
- -100
-91
-51
-94
-74
-34
-94
-
-45
-
-
-
dB
dB
dB
dB
dB
dB
Idle Channel Noise / Signal-to-noise ratio A-weighted - 114 - dB
Interchannel Isolation (1 kHz) - 110 - dB
DC Accuracy
Interchannel Gain Mismatch - 0.1 - dB
Gain Drift - 100 - ppm/°
C
Analog Output
Full-Scale Differential- PCM, DSD processor
Output Voltage (Note 3) Direct DSD Mode
V
FS
1.28•V
A
0.90•V
A
1.32•V
A
0.94•V
A
1.36•V
A
0.98•V
A
Vpp
Vpp
Output Impedance Z
OUT
- 130 - 
Max DC Current draw from an AOUT pin I
OUTmax
- 1.0 - mA
Min AC-Load Resistance R
L
- 3 - k 
Max Load Capacitance C
L
- 100 - pF
Quiescent Voltage VQ - 50% V
A
- VDC
Max Current draw from VQ I
QMAX
- 10 - A