Datasheet > LMH4075

LMH4075

更新时间： 2024-09-15 04:19:59

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
6页	166K
描述
3 Gbps, HD, SD, DVB-ASI SDI Dual Serializer / Deserializer (SER/DES) with Loopthrough and LVDS Interface

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LMH4075 数据手册

ADVANCE INFORMATION

September 4, 2008

LMH4345, LMH4045, LMH4075

3 Gbps, HD, SD, DVB-ASI SDI Dual Serializer / Deserializer

(SER/DES) with Loopthrough and LVDS Interface

General Description

Key Specifications

The Dual SER/DES 5:1 Serializer and 1:5 De-serializer pro-

vides four independent high-speed Serial Digital Interface

(SDI) links, two RX and two TX links, compliant with SMPTE

259M C, SMPTE 292M or SMPTE 424M at datarates of 270

Mbps, 1.5 Gbps or 3 Gbps as applicable. The channels also

will support DVB_ASI interfaces, with internal 8b10b coding/

decoding. Built-in programmable serializer and deserializer

signal conditioning blocks improve signal integrity perfor-

mance and allow flexible board layout. The input and output

of the Dual Serdes are designed to interface easily to FPGA/

ASIC devices. Each input or output channel is supported by

5 pairs of high-speed LVDS connections to reduce FPGA pin

count as well as provide better signal integrity and EMI per-

formance. The serializer outputs have integrated cable

drivers which support SMPTE 259M (270 Mb/s), SMPTE

292M, and SMPTE 424M standards with excellent output jitter

performance. Each Deserializer channel has a reclocked

loopthrough output which also has an integrated cable driver.

When paired with a host FPGA the LMH4345 deserializers

automatically detect the incoming data rate and decode the

raw 5-bit data words compliant to any of the supported stan-

dards. The interface between the LMH4345 and the host

FPGA consists of four 5-bit wide LVDS buses (two input and

two output), an LVDS clock per channel and an SMBus inter-

face. No external VCOs or clocks are required. The LMH4345

receivers detect the frequency from the incoming data

stream, generate a clean clock and transmit both clock and

data to the host FPGA. Refer to table 1 for a listing of the

variants of this product offered. National Semiconductor also

offers single serializers and single deserializers as a part of

the FPGA-Attach SER/DES product family.

Output compliant with SMPTE 259M-C, SMPTE 292M,

■

SMPTE 424M and DVB-ASI

Typical power dissipation: TBD mW (loopthrough

disabled, 3G datarate)

■

Jitter Tolerance (Deserializer) 0.6UI

■

Output Jitter (Serializers) 0.1 UI

Features

Two Independent Serializers and Two Independent

Deserializers

■

No external VCO or clocks required

■

Reclocked serial loopthrough with Cable Driver

Integrated Cable Drivers

Powerdown Mode

3.3V SMBus configuration interface

Small 100 Pin TQFP package

Industrial Temperature range:-40°C to +85°C

Applications

SDI interfaces for:

■

Video Cameras

DVRs

—

Video Switchers

Video Editing Systems

The FPGA-Attach SER/DES product family is supported by a

suite of IP which allows the design engineer to quickly develop

video applications using the SER/DES products. The product

is packaged in a 100 pin TQFP package.

TRI-STATE® is a registered trademark of National Semiconductor Corporation.

300682

www.national.com

12 3 4 5 6

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与LMH4075相关器件

型号	品牌	获取价格	描述	数据表
LMH4345	NSC	获取价格	3 Gbps, HD, SD, DVB-ASI SDI Dual Serializer / Deserializer (SER/DES) with Loopthrough and
LMH5401	TI	获取价格	8-GHz, Low-Noise, Low-Power, Fully-Differential Amplifier
LMH5401FFK/EM	TI	获取价格	耐辐射加固保障 (RHA) 6.5GHz 超宽带全差分放大器 \| FFK \| 14 \| 2
LMH5401IRMSR	TI	获取价格	8-GHz, Low-Noise, Low-Power, Fully-Differential Amplifier
LMH5401IRMST	TI	获取价格	8-GHz, Low-Noise, Low-Power, Fully-Differential Amplifier
LMH5401-SP	TI	获取价格	耐辐射加固保障 (RHA) 6.5GHz 超宽带全差分放大器
LMH5485-SEP	TI	获取价格	Radiation-tolerant 850-MHz fully differential amplifier
LMH5485-SP	TI	获取价格	Radiation-hardness-assured (RHA) 850-MHz fully differential amplifier
LMH6	CREE	获取价格	LED Module with Cree TrueWhite Technology
LMH6321	NSC	获取价格	300 mA High Speed Buffer with Adjustable Current Limit

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