CS4245 Datasheet, PDF (19/54 Pages) Cirrus Logic – 105 dB, 24-Bit, 192 kHz Streo Sudio CODEC

CS4245
DC ELECTRICAL CHARACTERISTICS (AGND = DGND = 0 V, all voltages with respect to
ground. MCLK=12.288 MHz; Fs=48 kHz, Master Mode)
Parameter
Symbol Min
Power Supply Current
(Normal Operation)
VA = 5 V
I_A
-
VA = 3.3 V
I_A
-
VD, VLS, VLC = 5 V
I_D
-
VD, VLS, VLC = 3.3 V
I_D
-
Power Supply Current.
VA = 5 V
I_A
-
(Power-Down Mode) (Note 20). VLS, VLC, VD=5 V
I_D
-
Power Consumption
(Normal Operation).
VA, VD, VLS, VLC = 5 V
-
-
VA, VD, VLS, VLC = 3.3 V
-
-
(Power-Down Mode).
VA, VD, VLS, VLC = 5 V
-
-
Power Supply Rejection Ratio (1 kHz) (Note 21) PSRR
-
VQ Characteristics
Quiescent Voltage 1
VQ1
-
DC Current from VQ1
VQ1 Output Impedance
Quiescent Voltage 2
(Note 22)
I_Q1
-
Z_Q1
-
VQ2
-
DC Current from VQ2
VQ2 Output Impedance
FILT1+ Nominal Voltage
(Note 22)
I_Q2
-
Z_Q2
-
FILT1+
-
FILT2+ Nominal Voltage
FILT2+
-
Microphone Bias Voltage
MICBIAS -
Current from MICBIAS
I_MB
-
Typ
41
37
39
23
0.50
0.54
400
198
4.2
60
0.5 x VA
-
23
0.5 x VA
-
23
VA
VA
0.8 x VA
-
Max
50
45
47
28
-
-
485
241
-
-
Unit
mA
mA
mA
mA
mA
mA
mW
mW
mW
dB
-
VDC
1
µA
-
kΩ
-
VDC
1
µA
-
kΩ
-
VDC
-
VDC
-
VDC
2
mA
Notes: 20. Power Down Mode is defines as RESET = Low with all clock and data lines held static and no analog
input.
21. Valid with the recommended capacitor values on FILT1+, FILT2+, VQ1 and VQ2 as shown in the
Typical Connection Diagram.
22. Guaranteed by design. The DC current draw represents the allowed current draw due to typical leakage
through the electrolytic de-coupling capacitors.
19