Cirrus Logic CS44800 - Manual (Page 9)

DS632F1 9
CS44800
DC ELECTRICAL CHARACTERISTICS
(GND = 0 V, all voltages with respect to ground; DAI_MCLK = 12.288 MHz, XTAL = 24.576 MHz, PWM Switch
Rate = 384 kHz unless otherwise specified.)
4. Normal operation is defined as RST = HI with a 997 Hz, 0 dBFS input.
5. Current consumption increases with increasing XTAL clock rates and PWM switch rates. Variance be-
tween DAI clock rates is negligible.
6. I
LC
measured with no external loading on the SDA pin.
7. Valid with PSRR function enabled and the recommended external ADC (CS4461) and filtering.
8. Power down mode is defined as RST pin = LOW with all clock and data lines held static.
9. When RST pin = LOW, the internal oscillator is active to provide a valid clock for the SYS_CLK output.
DIGITAL INTERFACE CHARACTERISTICS
(GND = 0 V, all voltages with respect to ground)
10. Serial Port signals include: SYS_CLK, DAI_MCLK, DAI_SCLK, DAI_LRCK, DAI_SDIN1-4
Control Port signals include: SCL/CCLK, SDA/CDOUT, AD0/CS, AD1/CDIN, INT, RST, MUTE
PWM signals include: PWMOUTA1-B4, PSR_MCLK, PSR_SYNC, PSR_DATA, PS_SYNC, GPIO[6:0]
Parameter Symbol Min Typ Max Units
Normal Operation (Note 4)
Power Supply Current (Note 5) VD = 2.5 V
VDX = 3.3 V
VDP = 3.3 V
VLS = 3.3 V
VLC = 3.3 V (Note 6)
I
D
I
DX
I
DP
I
LS
I
LC
-
-
-
-
- 150
2
1.2
150
250
-
-
-
-
- mA
mA
mA
µA
µA
Power Dissipation VD=2.5 V, VDX = VDP = VLS = VLC = 3.3 V - 387 500 mW
Power Supply Rejection Ratio (Note 7) (1 kHz)
(60 Hz)
PSRR -
- 15
40 -
- dB
dB
Power-Down Mode (Note 8)
Power Supply Current All Supplies except VDX (Note 9) I
pd
- 80 - µA
Parameters (Note 10) Symbol Min Typ Max Units
High-Level Input Voltage XTAL
PWM Interface
Serial Audio Interface
Control Interface
V
IH
0.7xVDX
0.7xVDP
0.7xVLS
0.7xVLC
-
-
-
- -
-
-
- V
V
V
V
Low-Level Input Voltage XTAL
PWM Interface
Serial Audio Interface
Control Interface
V
IL
-
-
-
- -
-
-
- 0.2xVDX
0.2xVDP
0.2xVLS
0.2xVLC
V
V
V
V
High-Level Output Voltage at I
o
= -2 mA PWM Interface
Serial Audio Interface
Control Interface
V
OH
VDP-1.0
VLS-1.0
VLC-1.0
-
-
- -
-
- V
V
V
Low-Level Output Voltage at I
o
= 2 mA PWM Interface
Serial Audio Interface
Control Interface
V
OL
-
-
- -
-
- 0.45
0.45
0.45 V
V
V
Input Leakage Current I
in
- - ±10 µA
Input Capacitance - - 8 pF