SCAN921821 - 具有预强调、IEEE 1149.1 (JTAG) 和全速度 BIST 的双路 18 位串行器

SCAN921821是TI德州仪器公司的一款BLVDS/LVDS串行器/解串器(<100MHz)产品，SCAN921821是具有预强调、IEEE 1149.1 (JTAG) 和全速度 BIST 的双路 18 位串行器，本站介绍了SCAN921821的封装应用图解、特点和优点、功能等，并给出了与SCAN921821相关的TI元器件型号供参考。

SCAN921821 - 具有预强调、IEEE 1149.1 (JTAG) 和全速度 BIST 的双路 18 位串行器 - BLVDS/LVDS串行器/解串器(<100MHz) - 串行器、解串器 - 德州仪器

产品描述

The SCAN921821 is a dual channel 18-bit serializer featuring signal conditioning, boundary SCAN, and at-speed BIST. Each serializer block transforms an 18-bit parallel LVCMOS/LVTTL data bus into a single Bus LVDS data stream with embedded clock. This single serial data stream with embedded clock simplifies PCB design and reduces PCB cost by narrowing data paths that in turn reduce PCB size and layers. The single serial data stream also reduces cable size, the number of connectors, and eliminates clock-to-data and data-to-data skew.

Each channel also has an 8-level selectable pre-emphasis feature that significantly extends performance over lossy interconnect. Each channel also has its own powerdown pin that saves power by reducing supply current when the channel is not being used.

The SCAN921821 also incorporates advanced testability features including IEEE 1149.1 and at-speed BIST PRBS pattern generation to facilitate verification of board and link integrity

产品特性

15-66 MHz Dual 18:1 Serializer with 2.376 Gbps Total Throughput
8-level Selectable Pre-emphasis on Each Channel Drives Lossy Cables and Backplanes
>15kV HBM ESD Protection on Bus LVDS I/O Pins
Robust BLVDS Serial Data Transmission with Embedded Clock for Exceptional Noise Immunity and Low EMI
Power Saving Control Pin for Each Channel
IEEE 1149.1 "JTAG" Compliant
At-Speed BIST - PRBS Generation
No External Coding Required
Internal PLL, No External PLL Components Required
Single +3.3V Power Supply
Low Power: 260 mW (typ) Per Channel at 66 MHz with PRBS-15 Pattern
Single 3.3 V Supply
Fabricated with Advanced CMOS Process Technology
Industrial −40 to +85°C Temperature Range
Compact 100-ball NFBGA Package

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SCAN921821 - 具有预强调、IEEE 1149.1 (JTAG) 和 全速度 BIST 的双路 18 位串行器

SCAN921821 - 具有预强调、IEEE 1149.1 (JTAG) 和全速度 BIST 的双路 18 位串行器