CS4237B
DIGITAL FILTER CHARACTERISTICS (Note 1)
Parameter
Symbol
Min
Typ
Max
Units
Passband
0
-1.0
-
-
-
-
-
-
0.40xFs
Hz
dB
dB
Hz
Hz
dB
Frequency Response
Passband Ripple
Transition Band
Stop Band
+0.5
(0-0.40xFs)
-
±0.1
0.40xFs
0.60xFs
74
0.60xFs
-
-
Stop Band Rejection
Group Delay
8- and 16-bit formats
Stereo ADPCM format
Mono ADPCM format
-
-
-
-
-
-
10/Fs
14/Fs
18/Fs
s
s
s
Group Delay Variation vs. Frequency
ADCs
DACs
-
-
-
-
0.0
0.1/Fs
µs
µs
DIGITAL CHARACTERISTICS (TA = 25°C; VA, VDF1-VDF4 = 5V, VD1 = 5V/3V;
AGND, DGND1, SGND1-SGND4 = 0V.)
Parameter
Symbol
Min
Max
Units
High-level Input Voltage
Low-level Input Voltage
Digital Inputs
XTALI
VIH
2.0
VD-1.0
-
-
V
V
VIL
-
0.8
V
High-level Output Voltage:
ISA Bus Pins (except DRQA)
DRQA
IOCHRDY, SDA/XD0 (Note 6)
VOH
2.4
2.4
2.4
2.4
VD1
VDF
VDF
VDF
V
V
V
V
I = -24.0 mA
I = -24.0 mA
0
0
All Others
I = -1.0 mA
0
Low-level Output Voltage:
ISA Bus Pins
I = 24.0 mA
VOL
-
-
-
-
0.55
0.4
0.4
V
V
V
V
0
I = 18.0 mA
0
IOCHRDY
All Others
I = 8.0 mA
0
0.4
I = 4.0 mA
0
Input Leakage Current
Output Leakage Current
(Digital Inputs)
-10
-10
10
10
µA
µA
(High-Z Digital Outputs)
Note
6. Open Collector pins. High level output voltage dependent on external pull up (required) used and
number of peripherals (gates) attached.
6
DS213PP4
CIRRUS [ CIRRUS LOGIC ]
