CS4235 Datasheet, PDF (4/94 Pages) Cirrus Logic – CrystalClear Low Cost ISA Audio System

CS4235
CrystalClear ^TM Low Cost ISA Audio System
ANALOG CHARACTERISTICS (Continued)
CS4235-JQ
Parameter*
Symbol Min Typ Max
CS4235-KQ
Min Typ Max
Units
Analog Output Characteristics (PC-D-A) - Volume set to 0 dB unless otherwise specified.
DAC1 Resolution
(Note 1)
16
-
-
16 -
-
Bits
DAC1 Differential Nonlinearity
(Note 1)
-
- ±0.5 -
- ±0.5 LSB
DAC1 Frequency Response:
Ac = ±1 dB FR
-
-
- 20 - 19000 Hz
DAC1 Dynamic Range
DR
-
-86
- -80 -86 - dB FS A
DAC1 Total Harmonic Distortion+Noise:
THD+N -
-3 dB FS input
(Note 3)
-80
- -74 -80 - dB FS A
DAC1 Interchannel Isolation
(Notes 1,3)
-
-95
- -80 -95 -
dB
DAC1 Interchannel Gain Mismatch
-
±0.1 ±0.5 - ±0.1 ±0.5
dB
Voltage Reference Output - VREF
2.0 2.2 2.5 2.0 2.2 2.5
V
Voltage Reference Output Current - VREF
(Notes 1,4)
-
100 400 - 100 400
µA
DAC1 Programmable Attenuation Span
90 94.5 - 90 94.5 -
dB
DAC1 Atten. Step Size: Greater than -82.5 dB
-82.5 dB to -94.5 dB
1.3 1.5 1.7 1.3 1.5 1.7
dB
1.0 1.5 2 1.0 1.5 2
dB
DAC1 Offset Voltage
-
-
-
- ±1 ±10 mV
Full Scale Output Voltage
(Note 3)
2.5 2.8 3.3 2.5 2.8 3.3 Vpp
Gain Drift
(Note 1)
-
100 -
- 100 - ppm/°C
Deviation from Linear Phase
(Passband)
(Note 1)
-
-
1
-
- 1 Degree
External Load Impedance
(Note 1)
10
-
- 10 - -
kΩ
Mute Attenuation
(Note 1)
80
-
-
80 -
-
dB
Power Supply
Power Supply Current
Digital, Operating
Analog, Operating
Total Operating
Total Power Down
-
70
-
- 70 80
mA
-
30
-
- 30 35
mA
-
100 -
- 100 -
mA
-
-
-
-
-
1
mA
Power Supply Rejection, 1 kHz
(Note 1)
40
-
-
40 -
-
dB
Notes: 3. 10 kΩ, 100 pF load.
4. DC current only. If dynamic loading exists, then the voltage reference output must be buffered
or the performance of ADCs and DACs will be degraded.
4
DS252PP2