參數(shù)資料
型號(hào): HDMP-1646A
英文描述: Gigabit Ethernet Serialize/Deserialize (SerDes) IC(千兆位以太網(wǎng)串行器/解串行器)
中文描述: 千兆以太網(wǎng)序列化/反序列化器(SerDes)集成電路(千兆位以太網(wǎng)串行器/解串行器)
文件頁(yè)數(shù): 10/16頁(yè)
文件大?。?/td> 248K
代理商: HDMP-1646A
10
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-Zo
.
I/O Type Definitions
I/O Type
I-TTL
O-TTL
HS_OUT
HS_IN
C
S
Definition
Input TTL, Floats High When Left Open
Output TTL
High Speed Output, ECL Compatible
High Speed Input
External Circuit Node
Power Supply or Ground
HDMP-1636A/46A/T1636A (TRx)
Pin Input Capacitance
Symbol
C
INPUT
Parameter
Units
pF
Typ.
1.6
Max.
Input Capacitance on TTL Input Pins
Figure 10. HS_OUT and HS_IN Simplified Circuit Schematic.
Figure 9. O-TTL and I-TTL Simplified Circuit Schematic.
V
CC
R
V
BB
1.4 V
R
GND
V
CC
ESD
PROTECTION
GND_RXTTL
V
CC
_RXTTL
R
R
R
O_TTL
I_TTL
GND
ESD
PROTECTION
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 Zo
V
CC
GND
GND
V
CC
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