參數(shù)資料
型號(hào): ORT8850L-2BM680I
廠商: Lattice Semiconductor Corporation
文件頁(yè)數(shù): 80/105頁(yè)
文件大?。?/td> 0K
描述: IC FPSC TRANSCEIVER 8CH 680-BGA
產(chǎn)品變化通告: Product Discontinuation 01/Aug/2011
標(biāo)準(zhǔn)包裝: 24
系列: *
Lattice Semiconductor
ORCA ORT8850 Data Sheet
76
Termination Resistor
The LVDS drivers and receivers operate on a 100
Ω differential impedance, as shown below. External resistors are
not required. The differential driver and receiver buffers include termination resistors inside the device package, as
shown in Figure 36 below.
Figure 36. LVDS Driver and Receiver and Associated Internal Components
LVDS Driver Buffer Capabilities
Under worst-case operating condition, the LVDS driver must withstand a disabled or unpowered receiver for an
unlimited period of time without being damaged. Similarly, when its outputs are short-circuited to each other or to
ground, the LVDS driver will not suffer permanent damage Figure 37 illustrates the terms associated with LVDS
driver and receiver pairs.
Figure 37. LVDS Driver and Receiver
Figure 38. LVDS Driver
LVDS DRIVER
50
LVDS RECEIVER
CENTER TAP
DEVICE PINS
100
EXTERNAL
VGPD
VOA
VOB
VIA
VIB
A
B
AA
BB
DRIVER
INTERCONNECT
RECEIVER
VOA
A
VOB
B
CA
CB
RLOAD
VOD = (VOA – VOB)
V
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