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參數(shù)資料
| 型號： | AM79C875KI |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver |
| 中文描述： | DATACOM, ETHERNET TRANSCEIVER, PQFP100 |
| 封裝： | 14 X 20 MM, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 35/48頁 |
| 文件大?。?/td> | 2480K |
| 代理商： | AM79C875KI |
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Am79C875
35
Power Supply Current Consumption
Symbol
Parameter
Description
Test Conditions
Minimum
Typical
Maximum
Units
I
DD
Power Supply Current
for 10BASE-T
(Note 11)
V
DD
= maximum
-
260
(Note 13)
480
(Note 11,12)
mA
I
DD
Power Supply Current
for 100BASE-TX/FX
(Note 11)
V
DD
= maximum
-
300
380
(Note 11)
mA
Notes:
1. Applies to FXR+, FXR-, SDI+, and SDI- inputs only. Valid only when Port 3 is in PECL mode. V
DD
is that of the fiber
transceiver.
2. Applies to RX
±
inputs when the corresponding port is in MLT-3 mode only. The RX
±
input is guaranteed to assert internal
signal detect for any valid peak-to-peak input signal greater than V
SDA
MAX. Tested within limits of V
SDD
and V
SDA
.
3. Applies to RX
±
inputs when the corresponding port is in MLT-3 mode only. The RX
±
input is guaranteed to de-assert internal
signal for any peak to peak signal less than V
SDD
MIN. Tested within limits of V
SDD
and V
SDA
.
4. Applies to FXT+ and FXT- outputs only. Valid only when Port 3 is in PECL mode. V
DD
is that of the fiber transceiver.
5. Applies to digital inputs and all bidirectional pins. RX
±
limits up to 1.0 mA max for I
IL
and -1.0 mA min for I
IH
. Pull-up/pull-down
resistors effect this value.
6. Applies to TX
±
differential outputs only. Valid only when the port is in the MLT-3 mode.
7. V
TXR
is the ratio of the magnitude of TX
±
in the positive direction to the magnitude of TX
±
in the negative direction.
8. Parameter not tested.
9. Only valid for TX output when the port is in the 10BASE-T mode.
10. I
OZ
applies to all high-impedance output pins. Pull-up/pull-down resistors effect this value.
11. Tested with all TX± output pins driving the rated load.
12. Assumes 80% Utilization with all ports at 10 Mbps, using 1:1 transformers.
13. Typical is 30% network utilization.
14. Assumes outputs are loaded, and all LEDs are used.
Symbol
Parameter Description
Test Conditions
Minimum
Maximum
Units
V
TSQ
RX
±
10BASE-T Squelch
Threshold
Sinusoid 5 MHz<f<10 MHz
300
585
mV
V
THS
RX
±
Post-Squelch Differential
Threshold 10BASE-T (Note 8)
Sinusoid 5 MHz<f<10 MHz
150
293
mV
V
RXDTH
10BASE-T RX
±
Differential
Switching Threshold (Note 8)
Sinusoid 5 MHz<f<10 MHz
-60
60
mV
V
TX10NE
10BASE-T Near-End Peak
Differential Voltage (Note 9)
MLT-3/10BASE-T Test Load
2.2
2.8
V
I
OZ
Output Leakage Current
(Note 10)
0.4 V < V
OUT
< V
DD
-30
100
μ
A
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