CS42L51 Datasheet, PDF (24/83 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

CS42L51
DC ELECTRICAL CHARACTERISTICS
(AGND = 0 V; all voltages with respect to ground.)
Parameters
Min
VQ Characteristics
Nominal Voltage
-
Output Impedance
-
DC Current Source/Sink (Note 21)
-
DAC_FILT+ Nominal Voltage
-
ADC_FILT+ Nominal Voltage -
VSS_HP Characteristics
Nominal Voltage
-
DC Current Source
-
MIC BIAS Characteristics
Nominal Voltage
DC Current Source
Power Supply Rejection Ratio (PSRR)
MICBIAS_LVL[1:0] = 00 -
MICBIAS_LVL[1:0] = 01 -
MICBIAS_LVL[1:0] = 10 -
MICBIAS_LVL[1:0] = 11 -
-
1 kHz -
Power Supply Rejection Ratio (PSRR) (Note 22)
1 kHz -
Typ
0.5•VA
23
-
VA
VA
-0.8•(VA_HP)
0.8•VA
0.7•VA
0.6•VA
0.5•VA
-
50
60
Max Units
-
V
-
kΩ
10
µA
-
V
-
V
-
V
10
µA
-
V
-
V
-
V
-
V
1
mA
-
dB
-
dB
Notes:
21. The DC current draw represents the allowed current draw from the VQ pin due to typical leakage
through electrolytic de-coupling capacitors.
22. Valid with the recommended capacitor values on DAC_FILT+, ADC_FILT+ and VQ. Increasing the ca-
pacitance will also increase the PSRR.
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS
Parameters (Note 23)
Input Leakage Current
Input Capacitance
1.8 V - 3.3 V Logic
High-Level Output Voltage (I_OH = -100 µA)
Low-Level Output Voltage (I_OL = 100 µA)
High-Level Input Voltage
Low-Level Input Voltage
Symbol
Min
I_in
-
-
V_OH
V_OL
V_IH
V_IL
VL - 0.2
-
0.65•VL
-
Max
±10
10
-
0.2
-
0.35•VL
23. See “Digital I/O Pin Characteristics” on page 9 for serial and control port power rails.
Units
µA
pF
V
V
V
V
24
DS679A2