参数资料
型号: SN65HVD2
厂商: Texas Instruments, Inc.
元件分类: RS-485
英文描述: EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
中文描述: 扩展共模RS - 485收发
文件页数: 19/25页
文件大小: 527K
代理商: SN65HVD2
SLLS552D DECEMBER 2002 REVISED APRIL 2005
www.ti.com
19
INTEGRATED RECEIVER EQUALIZATION USING THE HVD24
Figure 29 illustrates the benefits of integrated receiver equalization as implemented in the HVD24 transceiver.
In this test setup, a differential signal generator applied a signal voltage at one end of the cable, which was
Belden 3105A twisted-pair shielded cable. The test signal was a pseudo-random bit stream (PRBS) of
nonreturn-to-zero (NRZ) data. Channel 1 (top) shows the eye-pattern of the bit stream. Channel 2 (middle)
shows the eye-pattern of the differential voltage at the receiver inputs (after the cable attenuation). Channel
3 (bottom) shows the output of the receiver.
Figure 29. HVD24 Receiver Performance at 5 Mbps Over 500 Meter Cable
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