參數(shù)資料
型號(hào): HDMP-1638
英文描述: Gigabit Ethernet Transceiver Chip with Dual Serial I/O and Differential PECL Clock Inputs(帶雙路串行I/O和差分PECL時(shí)鐘輸入的千兆位以太網(wǎng)收發(fā)器)
中文描述: 千兆以太網(wǎng)收發(fā)器芯片,配有雙串行I / O和差分PECL時(shí)鐘輸入(帶雙路串行的I / O和差分PECL的時(shí)鐘輸入的千兆位以太網(wǎng)收發(fā)器)
文件頁(yè)數(shù): 12/19頁(yè)
文件大?。?/td> 253K
代理商: HDMP-1638
12
Figure 9: O-TTL and I-TTL Simplified Circuit Schematic.
Figure 10: HS_OUT and HS_IN Simplified Circuit Schematic.
V
CC
_TTL
R
V
BB
1.4 V
R
GND_TTL
V
CC
_TTL
or
V
CC
_RX
ESD
PROTECTION
GND_TTL
V
CC
_TTL
R
R
O_TTL
I_TTL
GND
ESD
PROTECTION
R
V
CC
HS OUT
R
0.01 μF
0.01 μF
Zo
Zo
V
CC
_TXHS
V
CC
_TXECL
GND
ESD
PROTECTION
-DOUT
+DOUT
150
150
R
PAD
R
PAD
GND_TXHS
+DIN
-DIN
ESD
PROTECTION
R
+
+
HS IN
2 * Z0
V
CC
GND
GND
V
CC
NOTES:
1. HS_IN INPUTS SHOULD NEVER BE CONNECTED TO GROUND AS PERMANENT DAMAGE TO THE DEVICE MAY RESULT.
2. THE OPTIONAL SERIES PADDING RESISTORS (R
PAD
) HELP DAMPEN LOAD REFLECTIONS. TYPICAL R
PAD
VALUES FOR
MISMATCHED LOADS RANGE BETWEEN 25-Z0
.
3. FOR PECL REFCLK INPUT PAIR, THE CONSTANT VOLTAGE SUPPLIES (SHOWN AS A) AND RESISTORS R ARE OMITTED.
A
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