CS8900A 查看數據表（PDF） - Cirrus Logic
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CS8900A Datasheet PDF : 138 Pages
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7.6 AUI WIRING
CS8900A
1:1
DO +
Tx
DO -
CI +
+
Col
-
CI -
0.01 uF
1:1
39.2 Ω
39.2 Ω
CS8900A
Crystal LAN™ Ethernet Controller
DB15
3
10
4
2
9
DI +
+
Rx
-
DI -
0.01 uF
1:1
39.2 Ω
39.2 Ω
5
12
13 6
+12 V
7.7 QUARTZ CRYSTAL REQUIREMENTS (If a 20 MHz quartz crystal is used, it must meet the fol-
lowing specifications)
Parameter
Min
Parallel Resonant Frequency
-
Resonant Frequency Error (CL = 18 pF)
-50
Resonant Frequency Change Over Operating Temperature
-40
Crystal Capacitance
-
Motional Crystal Capacitance
-
Series Resistance
-
Shunt Capacitance
-
Typ
20
-
-
-
0.022
-
-
Max
Unit
-
MHz
+50
ppm
+40
ppm
18
pF
-
pF
50
Ohm
7
pF
CIRRUS LOGIC PRODUCT DATASHEET
122
DS271F4
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