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参数资料
型号： AS1153-T
厂商： AUSTRIAMICROSYSTEMS AG
元件分类： LVDS
英文描述： Dual 260Mbps LVDS Receiver; Package Type: SOIC-8
封装： SOIC-8
文件页数： 11/16页
文件大小： 462K
代理商： AS1153-T
11 - 16
AS1153, AS1157
Datasheet - Applications
Cables and Connectors
Supported transmssion media include printed circuit board traces, backplanes, and cables.
Use cables and connectors with matched differential impedance (typically 100
Ω
) to mnimze impedance msmatches.
Balanced cables such as twisted pair offer superior signal quality and tend to generate less EMI due to magnetic field canceling effects. Bal-
anced cables pick up noise as common mode, which is rejected by the LVDS receiver.
Avoid the use of unbalanced cables such as ribbon cable or simple coaxial cable.
Termination
Due to the high data rates of LVDS drivers, matched termnation will prevent the generation of any signal reflections, and reduce EMI.
The AS1157 has integrated termnation resistors connected across the inputs of each receiver. The value of the integrated resistor is speci-
fied in Table 3.
The AS1153 requires an external termnation resistor. The termnation resistor should match the differential impedance of the transmssion
line and be placed as close to the receiver inputs as possible. Termnation resistance values may range between 90 to 132
Ω
depending on
the characteristic impedance of the transmssion medium Use 1% surface-mount resistors.
Board Layout
The device should be placed as close to the interface connector as possible to mnimze LVDS trace length.
Keep the LVDS and any other digital signals separated fromeach other to reduce crosstalk.
Use a four-layer PC board that provides separate power, ground, LVDS signals, and input signals.
Isolate the input LVDS signals fromeach other and the output LVCMOS/LVTTL signals fromeach other to prevent coupling.
Separate the input LVDS signals fromthe output signals planes with the power and ground planes for best results.
Figure 20. Propagation Delay and Transition Time Test Circuit
IN
x
+
50
Ω
50
Ω
IN
x
-
OUT
x
C
L
Pulse
Generator**
* 50
Ω
required for pulse generator.
** When testing the AS1157, adjust the pulse generator output
to account for internal termination resistor.
Receiver
AS1153, AS1157
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相关代理商/技术参数
参数描述
AS1154 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:Single/Dual LVDS Driver
AS1154_1 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:Single/Dual LVDS Driver
AS1154_V2 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:Dual LVDS Driver
AS11540FLF 制造商:TT Electronics / IRC 功能描述:AS11540FLF
AS11540HLF 制造商:TT Electronics / IRC 功能描述:AS11540HLF
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