CS8900A
Crystal LAN™ ISA Ethernet Controller
7.6 AUI WIRING
DB15
CS8900A
DO +
1 : 1
3
Tx
DO -
10
4
1 : 1
CI +
+
2
9
39.2
39.2
Ω
Ω
Col
0.01 uF
CI -
-
1 : 1
DI +
DI -
5
+
Ω
Ω
39.2
39.2
0.01 uF
Rx
12
-
13
6
+12 V
7.7 QUARTZ CRYSTAL REQUIREMENTS (If a 20 MHz quartz crystal is used, it must meet the
following specifications)
Parameter
Parallel Resonant Frequency
Min
Typ
Max
-
Unit
MHz
ppm
ppm
pF
-
20
Resonant Frequency Error (CL = 18 pF)
Resonant Frequency Change Over Operating Temperature
Crystal Capacitance
-50
-
+50
+40
18
-
-40
-
-
-
-
-
-
Motional Crystal Capacitance
Series Resistance
0.022
pF
-
-
50
7
Ohm
pF
Shunt Capacitance
CIRRUS LOGIC PRODUCT DATA SHEET
DS271PP3
121
CIRRUS [ CIRRUS LOGIC ]
