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CS42888_07 Datasheet, PDF (23/61 Pages) Cirrus Logic – 108 dB, 192 kHz 4-In, 8-Out CODEC
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CS42888
DC ELECTRICAL CHARACTERISTICS
(AGND = 0 V; all voltages with respect to ground.)
Parameters
Symbol Min Typ Max Units
Normal Operation (Note 26)
Power Supply Current
VA = 5.0 V IA
-
80
-
mA
Power Dissipation
Power Supply Rejection Ratio
(Note 28)
Power-Down Mode (Note 29)
Power Dissipation
VQ Characteristics
Nominal Voltage
Output Impedance
DC Current Source/Sink (Note 30)
FILT+_ADC Nominal Voltage
FILT+_DAC Nominal Voltage
VLS = VLC = VD = 3.3 V
(Note 27)
All Supplies = 5 V
1 kHz
60 Hz
IDT
PSRR
All Supplies = VA = 5 V
-
60.6
-
mA
-
600 850
mW
-
60
-
dB
-
40
-
dB
-
1.25
-
mW
- 0.5•VA -
V
-
23
-
kΩ
-
-
10
μA
-
VA
-
V
-
VA
-
V
Notes:
26. Normal operation is defined as RST = HI with a 997 Hz, 0 dBFS input to the DAC and AUX port, and a
1 kHz, -1 dB analog input to the ADC port sampled at the highest Fs for each speed mode. DAC outputs
are open, unless otherwise specified.
27. IDT measured with no external loading on pin 64 (SDA).
28. Valid with the recommended capacitor values on FILT+ and VQ. Increasing the capacitance will also
increase the PSRR.
29. Power-Down Mode is defined as RST = LO with all clocks and data lines held static and no analog input.
30. Guaranteed by design. The DC current draw represents the allowed current draw from the VQ pin due
to typical leakage through the electrolytic de-coupling capacitors.
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS
Parameters (Note 31)
High-Level Output Voltage at Io=2 mA
Low-Level Output Voltage at Io=2 mA
High-Level Input Voltage
Low-Level Input Voltage
Leakage Current
Input Capacitance (Note 23)
MUTEC Drive Current
Symbol Min
Typ
Serial Port
VLS-1.0
-
Control Port VOH VLC-1.0
-
MUTEC
VA-1.0
-
Serial Port
-
-
Control Port VOL
-
-
MUTEC
-
-
Serial Port
0.7xVLS
-
Control Port VIH 0.7xVLC
-
Serial Port
-
-
Control Port VIL
-
-
Iin
-
-
-
-
-
3
Max
-
-
-
0.4
0.4
0.4
-
-
0.2xVLS
0.2xVLC
±10
10
-
Units
V
V
V
V
V
V
V
V
V
V
μA
pF
mA
Notes:
31. See “Digital I/O Pin Characteristics” on page 8 for serial and control port power rails.
DS717F2
23
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