Datasheet > AS1156-BSOT

AS1156-BSOT

更新时间： 2024-02-13 03:30:09

品牌	Logo	应用领域
艾迈斯 - AMSCO		驱动器
页数	文件大小	规格书
15页	135K
描述
Single/Dual LVDS Driver

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技术参数
数据手册

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AS1156-BSOT 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

AS1156-BSOT 数据手册

AS1156/AS1154

Data Sheet

austriamicrosystems

Power-Supply Bypassing

9 Applications

Table 5. Function Table

Input

INx

Output

OUTx+

OUTx-

0.8V < VINx < 2.0V

Undetermined

Figure 19. Typical Application Circuit

+3.3V

0.001µF

0.1µF

0.001µF

0.1µF

LVDS

Signals

LVTTL/LVCMOS

Data Outputs

LVTTL/LVCMOS

Data Inputs

107Ω

AS1158

Single LVDS Receiver

AS1156

100Ω Shielded Twisted Cable or Microstrip PC Board Traces

Power-Supply Bypassing

To bypass VCC, use high-frequency surface-mount ceramic 0.1µF and 0.001µF capacitors in parallel as close to the

device as possible, with the smaller valued capacitor closest to pin VCC.

Differential Traces

Input trace characteristics can adversely affect the performance of the AS1156/AS1154.

Use controlled-impedance PC board traces to match the cable characteristic impedance. The termination resistor is

also matched to this characteristic impedance.

Eliminate reflections and ensure that noise couples as common mode by running the differential traces near each

other.

Reduce skew by using matched trace lengths. Tight skew control is required to minimize emissions and proper data

recovery of the devices.

Route each channel’s differential signals very close to each other for optimal cancellation of their respective exter-

nal magnetic fields. Use a constant distance between the differential traces to avoid irregularities in differential

impedance.

Avoid 90° turns (use two 45° turns).

Minimize the number of vias to further prevent impedance irregularities.

Cables and Connectors

Supported transmission media include printed circuit board traces, backplanes, and cables.

Use cables and connectors with matched differential impedance (typically 100Ω) to minimize impedance mis-

matches.

Balanced cables such as twisted pair offer superior signal quality and tend to generate less EMI due to magnetic

field canceling effects. Balanced 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.

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