CS4239 Datasheet, PDF (4/98 Pages) Cirrus Logic – CrystalClear™ Portable ISA Audio System

CS4239
CrystalClear^TM Portable ISA Audio System
ANALOG CHARACTERISTICS (Continued)
CS4239-JQ
CS4239-KQ
Parameter*
Symbol Min Typ Max 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
-3 dB FS input
(Note 3)
THD+N - -80 - -75 -80
dB FS A
DAC1 Interchannel Isolation
10 kHz input
(Notes 1,3)
- -90 -
-80 -90
-
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 2.0 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
DAC1 Deviation from Linear Phase (Note 1)
(Passband)
-
-
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 -
- 30 -
- 100 -
--
-
-
70 80
mA
-
30 35
mA
- 100 -
mA
-
-
1
mA
Power Supply Rejection, 1 kHz input (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
DS253PP2