CRD42L51 Cirrus Logic Inc, CRD42L51 Datasheet - Page 24

• Manufacturer Part Number: CRD42L51
• Description: Ref Bd Low-voltage Stereo Codec
• Manufacturer: Cirrus Logic Inc

24
DC ELECTRICAL CHARACTERISTICS
(AGND = 0 V; all voltages with respect to ground.)
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS
VQ Characteristics
Nominal Voltage
Output Impedance
DC Current Source/Sink
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)
Power Supply Rejection Ratio (PSRR)
Input Leakage Current
Input Capacitance
1.8 V - 3.3 V Logic
High-Level Output Voltage
Low-Level Output Voltage
High-Level Input Voltage
Low-Level Input Voltage
22. The DC current draw represents the allowed current draw from the VQ pin due to typical leakage
23. Valid with the recommended capacitor values on DAC_FILT+, ADC_FILT+ and VQ. Increasing the ca-
24. See
through electrolytic de-coupling capacitors.
pacitance will also increase the PSRR.
“Digital I/O Pin Characteristics” on page 9
Parameters
(Note 22)
(I
(I
OL
OH
= 100 µA)
= -100 µA)
Parameters
(Note 24)
(Note 23)
MICBIAS_LVL[1:0] = 00
MICBIAS_LVL[1:0] = 01
MICBIAS_LVL[1:0] = 10
MICBIAS_LVL[1:0] = 11
for serial and control port power rails.
1 kHz
1 kHz
Symbol
V
V
V
V
I
OH
in
OL
IH
IL
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
VL - 0.2
0.68•VL
Min
-0.8•(VA_HP)
-
-
-
-
0.5•VA
0.8•VA
0.7•VA
0.6•VA
0.5•VA
Typ
VA
VA
23
50
60
-
-
0.32•VL
Max
±10
0.2
10
-
-
Max
CS42L51
10
10
1
-
-
-
-
-
-
-
-
-
-
-
DS679F1
Units
µA
Units
pF
V
V
V
V
mA
kΩ
µA
µA
dB
dB
V
V
V
V
V
V
V
V