Cirrus Logic CS43L22 - 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
15. See “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 (Note 14) DAC (HP & Line Amps) - 60 - dB
PSRR @ 60 Hz (Note 14) DAC (HP & Line Amps) - 60 - dB
PSRR @ 217 Hz Full-Bridge PWM Outputs - 56 - dB
Parameters (Note 15) 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