Digital interface specifications & characteristics – Cirrus Logic CS43L22 User Manual
Page 18
18
DS792F2
CS43L22
Confidential Draft
3/4/10
DC ELECTRICAL CHARACTERISTICS
AGND = 0 V; all voltages with respect to ground.
14. Valid with the recommended capacitor values on FILT+ and VQ. Increasing the capacitance will also
increase the PSRR.
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS
“I/O Pin Characteristics” on page 8
for serial and control port power rails.
Parameters
Min
Typ
Max
Units
VQ Characteristics
Nominal Voltage
Output Impedance
DC Current Source/Sink
-
-
-
0.5•VA
23
-
-
-
1
V
k
Ω
μA
Power Supply Rejection Ratio Characteristics
PSRR @ 1 kHz
DAC (HP & Line Amps)
-
60
-
dB
PSRR @ 60 Hz
DAC (HP & Line Amps)
-
60
-
dB
PSRR @ 217 Hz
Full-Bridge PWM Outputs
-
56
-
dB
Parameters
Symbol Min
Max
Units
Input Leakage Current
I
in
-
±10
μA
Input Capacitance
-
10
pF
1.8 V - 3.3 V Logic
High-Level Output Voltage (I
OH
= -100
μA)
V
OH
VL - 0.2
-
V
Low-Level Output Voltage (I
OL
= 100
μA)
V
OL
-
0.2
V
High-Level Input Voltage
VL = 1.65 V
VL = 1.8 V
VL = 2.0 V
VL > 2.0 V
V
IH
0.85•VL
0.77•VL
0.68•VL
0.65•VL
-
-
-
-
V
V
V
V
Low-Level Input Voltage
V
IL
-
0.30•VL
V