SN65ELT21 5V PECL 至 TTL 转换器

The SN65ELT21 is a differential PECL-to-TTL translator. It operates on +5-V supply and ground only. The device includes circuitry to maintain Q to a low logic level when inputs are in an open condition or < 1.3 V.

The VBB pin is a reference voltage output for the device. When the device is used in single-ended mode, the unused input should be tied to VBB. This reference voltage can also be used to bias the input when it is ac coupled. When it is used, place a 0.01uF decoupling capacitor between VCC and VBB. Also limit the sink/source current to < 0.5 mA to VBB. Leave VBB open when it is not used.

The SN65ELT21 is housed in an industry standard SOIC-8 package and is also available in an optional TSSOP-8 package

	SN65ELT21
Signaling Rate(Mbps)	400
Input Signal	PECL
Output Signal	TTL
No. of Rx	1
No. of Tx	1
Supply Voltage(s)(V)	5
ICC(Max)(mA)	20
Rx tpd(Typ)(ns)	4.5
Operating Temperature Range(C)	-40 to 85
Pin/Package	8MSOP, 8SOIC

SN65ELT21 特性

• 3ns (TYP) Propagation Delay
• Operating Range: VCC = 4.2 V to 5.7 V with GND = 0 V
• 24-mA TTL Output
• Deterministic Output Value for Open Input Conditions or When Inputs < 1.3 V
• Built-In Temperature Compensation
• Drop-In Compatible to the MC10ELT21, MC100ELT21
• APPLICATIONS
  • Data and Clock Transmission Over Backplane
  • Signaling Level Conversion for Clock or Data

SN65ELT21 芯片订购指南

器件	状态	温度	价格	封装 | 引脚	封装数量 | 封装载体	丝印标记
SN65ELT21D	ACTIVE	-40 to 85	1.45 | 1ku	SOIC (D) | 8	75 | TUBE
SN65ELT21DR	ACTIVE	-40 to 85	1.20 | 1ku	SOIC (D) | 8	2500 | LARGE T&R

SN65ELT21 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
SN65ELT21D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN65ELT21D	SN65ELT21D
SN65ELT21DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN65ELT21DR	SN65ELT21DR

SN65ELT21 应用技术支持与电子电路设计开发资源下载

1. SN65ELT21 数据资料 dataSheet 下载.PDF
2. TI 德州仪器PECL PHY选型与价格 . xls
3. 所选封装材料的热学和电学性质 (PDF 645 KB)
4. 使用数字隔离器设计隔离式 I2C 总线接口 (zhct119.PDF, 339 KB)
5. 1Q 2011 Issue Analog Applications Journal (slyt399.PDF, 964 KB)
6. 接口选择指南 (Rev. D) (PDF 2994 KB)
7. Signaling Rate vs. Distance for Differential Buffers (PDF 420 KB)
8. Q1 2009 Issue Analog Applications Journal (slyt319.PDF, 1.39 MB)
9. Isolated RS-485 Reference Design (PDF 80 KB)
10. 无铅组件涂层的保存期评估 (PDF 1305 KB)
11. Analog Signal Chain Guide (8.62 MB)
12. Industrial Interface IC Solutions (101 KB)

SN65ELT21 工具和软件

培训内容	型号	软件/工具类型
SN65ELT21 评估模块	SN65ELT21EVM	开发电路板/EVM