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AM7992BPC PDF预览

AM7992BPC

更新时间: 2024-10-28 22:47:47
品牌 Logo 应用领域
超微 - AMD 电信集成电路光电二极管编码器
页数 文件大小 规格书
27页 222K
描述
Serial Interface Adapter (SIA)

AM7992BPC 技术参数

是否Rohs认证:不符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP,
针数:24Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.76
Is Samacsys:NJESD-30 代码:R-PDIP-T24
JESD-609代码:e0长度:30.861 mm
功能数量:1端子数量:24
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:5.08 mm最大压摆率:180 mA
标称供电电压:5 V表面贴装:NO
电信集成电路类型:MANCHESTER ENCODER/DECODER温度等级:COMMERCIAL
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mmBase Number Matches:1

AM7992BPC 数据手册

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FINAL  
Am7992B  
Serial Interface Adapter (SIA)  
DISTINCTIVE CHARACTERISTICS  
CompatiblewithlEEE802.3/Ethernet/Cheapernet  
Input signal conditioning rejects transient noise  
Transients <10 ns for collision detector inputs  
Transients <20 ns for carrier detector inputs  
specifications  
Crystal/TTL oscillator-controlled Manchester  
encoder  
Receiver decodes Manchester data with worst  
case ±19 ns of clock jitter (at 10 MHz)  
Manchester decoder acquires clock and data  
within four bit times with an accuracy of ±3 ns  
TTL-compatible host interface  
Transmit accuracy +0.01% (without adjustments)  
Guaranteed carrier and collision detection  
squelch threshold limits  
— Carrier/collision detected for inputs greater than  
–275 mV  
— No carrier/collision for inputs less than –175 mV  
GENERAL DESCRIPTION  
The Am7992B Serial Interface Adapter (SIA) is a  
Manchester encoder/decoder compatible with IEEE  
802.3, Cheapernet, and Ethernet specifications. In an  
IEEE 802.3/Ethernet application, the Am7992B inter-  
faces the Am7990 Local Area Network Controller for  
Ethernet (LANCE) to the Ethernet transceiver device,  
acquires clock and data within four bit times, and de-  
codes Manchester data with worst case ±19 ns phase  
jitter at 10 MHz. SIA provides both guaranteed signal  
threshold limits and transient noise suppression cir-  
cuitry in both data and collision paths to minimize false  
start conditions.  
BLOCK DIAGRAM  
Receive Data (RX)  
Manchester  
Receive+  
Data  
Decoder  
Receiver  
Receive Clock (RCLK)  
Noise  
Reject  
Filter  
Receive–  
Carrier  
Carrier Present (RENA)  
Detect  
Collision+  
Collision–  
Noise  
Reject  
Filter  
Collision  
Collision (CLSN)  
Detect  
Transmit+  
Transmit–  
Transmit Data (TX)  
Manchester  
Encoder  
Transmit Enable (TENA)  
Transmit Clock (TCLK)  
XTAL1  
XTAL2  
Crystal  
OSC  
20 MHz  
03378I-1  
Publication# 03378 Rev: I Amendment/0  
Issue Date: May 1993  
1

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