CS4245 Datasheet, PDF (9/54 Pages) Cirrus Logic – 105 dB, 24-Bit, 192 kHz Streo Sudio CODEC

CS4245
DAC ANALOG CHARACTERISTICS (Full-Scale Output Sine Wave, 997 Hz; Test load R_L = 3 kΩ,
C_L = 10 pF (see Figure 1), Fs = 48/96/192 kHz. Measurement Bandwidth 10 Hz to 20 kHz, unless otherwise speci-
fied.) Synchronous mode.
All Speed Modes
Parameter
Dynamic Performance for VA = 5 V
Dynamic Range
18 to 24-Bit
16-Bit
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
Dynamic Performance for VA = 3.3 V
Dynamic Range
18 to 24-Bit
16-Bit
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
Interchannel Isolation
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Analog Output
Full Scale Output Voltage
DC Current draw from an AOUT pin
AC-Load Resistance
Load Capacitance
Output Impedance
Symbol Min
Typ
Max
Unit
(Note 3)
unweighted
96
A-Weighted
99
unweighted
87
A-Weighted
90
(Note 3) THD+N
0 dB
-
-20 dB
-
-60 dB
-
0 dB
-
-20 dB
-
-60 dB
-
102
-
dB
105
-
dB
93
-
dB
96
-
dB
-95
-89
dB
-82
-76
dB
-42
-36
dB
-93
-87
dB
-73
-67
dB
-33
-27
dB
(Note 3)
unweighted
93
A-Weighted
96
unweighted
85
A-Weighted
88
(Note 3) THD+N
0 dB
-
-20 dB
-
-60 dB
-
0 dB
-
-20 dB
-
-60 dB
-
(1 kHz)
-
99
-
dB
102
-
dB
90
-
dB
93
-
dB
-92
-84
dB
-79
-71
dB
-39
-31
dB
-90
-82
dB
-70
-62
dB
-30
-22
dB
100
-
dB
-
0.1
0.25
dB
-
100
-
ppm/°C
(Note 4)
(Note 5)
(Note 5)
I_OUT
R_L
C_L
Z_OUT
0.60*VA
-
3
-
-
0.65*VA
-
-
-
100
0.70*VA V_pp
10
µA
-
kΩ
100
pF
-
Ω
Note:
3. One-half LSB of triangular PDF dither added to data.
4. Guaranteed by design. The DC current draw represents the allowed current draw from the AOUT pin
due to typical leakage through the electrolytic DC blocking capacitors.
5. Guaranteed by design. See Figure 2. R_L and C_L reflect the recommended minimum resistance and
maximum capacitance required for the internal op-amp’s stability. C_L affects the dominant pole of the
internal output amp; increasing C_L beyond 100 pF can cause the internal op-amp to become unstable.
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