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參數(shù)資料
| 型號(hào)： | AM79C989JCT |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | Quad Ethernet Switching Transceiver (QuEST⑩) |
| 中文描述： | DATACOM, ETHERNET TRANSCEIVER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁(yè)數(shù)： | 30/37頁(yè) |
| 文件大?。?/td> | 198K |
| 代理商： | AM79C989JCT |
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30
Am79C989
P R E L I M I N A R Y
Note:
1. Parameter not tested.
Parameter
Symbol
Parameter Description
Test Conditions
Min
Max
Unit
Attachment Unit Interface (AUI) (continued)
V
ATH
Receive Data Differential Input
Threshold CI/DI
±
(Note 1)
-35
+35
mV
V
ASQ
DI
Threshold (Squelch)
±
and CI
±
Differential Input
-275
-160
mV
V
AIDV
DI
Voltage Range
±
and CI
±
Differential Mode Input
-2.5
+2.5
V
V
AICM
DI
±
and CI
±
Input Bias Voltage
I
IN
= 0 mA
V
DD
-3.0
V
DD
-1.0
V
10BASE-T Receive Interface
I
IRXD
Input Current at RXD
±
V
SSRX
<V
IN
<V
DD
-500
500
μ
A
R
RXD
RXD
±
Differential Input Resistance
(Note 1)
10
k
V
TIVB
RXD+, RXD- Open Circuit Input
Voltage (Bias)
I
IN
= 0 mA
V
DDTX
-3.0
V
DDTX
-1.5
V
V
TIDV
Differential Mode Input Voltage Range
(RXD
±
)
V
DDTX
= +5.0 V
-3.1
+3.1
V
V
TSQ+
RXD Positive Squelch Threshold
(Peak)
Sinusoid
5 MHz
≤
f
≤
10 MHz
300
520
mV
V
TSQ-
RXD Negative Squelch Threshold
(Peak)
Sinusoid
5 MHz
≤
f
≤
10 MHz
-520
-300
mV
V
THS+
RXD Post-Squelch Positive Threshold
(Peak)
Sinusoid
5 MHz
≤
f
≤
10 MHz
150
293
mV
V
THS-
RXD Post-Squelch Negative
Threshold (Peak)
Sinusoid
5 MHz
≤
f
≤
10 MHz
-293
-150
mV
V
LTSQ+
RXD Positive Squelch Threshold
(Peak). Extended Distance Mode.
Sinusoid
5 MHz
≤
f
≤
10 MHz
180
312
mV
V
LTSQ-
RXD Negative Squelch Threshold
(Peak). Extended Distance Mode.
Sinusoid
5 MHz
≤
f
≤
10 MHz
-312
-180
mV
V
LTHS+
RXD Post-Squelch Positive Threshold
(Peak). Extended Distance Mode.
Sinusoid
5 MHz
≤
f
≤
10 MHz
90
175
mV
V
LTHS-
RXD Post-Squelch Negative
Threshold (Peak). Extended Distance
Mode.
Sinusoid
5 MHz
≤
f
≤
10 MHz
-175
-90
mV
V
RXDTH
RXD Switching Threshold
(Note 1)
-35
35
mV
Power Supply Current
I
DDTX
Power Supply Current (All 10BASE-T
Ports Transmitting)
275
mA
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