lmh0040sqx National Semiconductor Corporation, lmh0040sqx Datasheet

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lmh0040sqx

Manufacturer Part Number
lmh0040sqx
Description
Hd, Sd, Dvb-asi Sdi Serializer With Lvds Interface [preliminary]
Manufacturer
National Semiconductor Corporation
Datasheet
© 2007 National Semiconductor Corporation
LMH0340, LMH0040, LMH0070, LMH0050
3G, HD, SD, DVB-ASI SDI Serializer and Driver with LVDS
Interface
General Description
The LMH0040 family of products provide a very simple 5:1
serializer and transmitter function, intended to be paired with
an FPGA host which will format the data appropriately such
that the output of the LMH0040 will be compliant with the out-
put requirements of DVB-ASI, SMPTE 259M, and SMPTE
292M. The LMH0340 adds support for SMPTE 424M, the
LMH0070 supports 270 Mbps operation only, and the
LMH0050 requires an external cable driver. Throughout this
document, if not explicitly stated, when the LMH0040 is re-
ferred to this includes all members of the family. The interface
between the LMH0040 and the FPGA consists of a 5 bit wide
LVDS bus, an LVDS clock and an SMBus interface. The
product is packaged in a physically small 48 pin LLP package.
300170
Key Specifications
Features
Applications
Output compliant with SMPTE 424M, SMPTE 292M,
SMPTE 259M-C and DVB-ASI
Typical power dissipation: 420 mW
Typical output jitter <53 ps (HD, 3G)
LVDS Interface
No external VCO or clock required
Integrated Variable output Cable Driver
3.3V SMBus configuration interface
48pin LLP package
SDI interfaces for:
— Video Cameras
— DVRs
— Video Switchers
— Video Editing Systems
PRELIMINARY
www.national.com
June 2007

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lmh0040sqx Summary of contents

Page 1

... LMH0040 and the FPGA consists bit wide LVDS bus, an LVDS clock and an SMBus interface. The product is packaged in a physically small 48 pin LLP package. © 2007 National Semiconductor Corporation Key Specifications ■ Output compliant with SMPTE 424M, SMPTE 292M, SMPTE 259M-C and DVB-ASI ■ ...

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Block Diagram SMPTE 424M Device Support LMH0340 X LMH0040 LMH0070 LMH0050 www.national.com TABLE 1. Feature Table SMPTE 292M SMPTE 259M Support Support 30017001 DVB-ASI Support SMPTE Compliant cable driver ...

Page 3

Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( LVCMOS (SMBus) input voltage LVCMOS (SMBus) output voltage LVDS Input Voltage Recommended Operating Conditions ...

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LVDS Input Electrical Characteristics specified Symbol Parameter V Differential Input High threshold TH V Differential Input Low threshold TL I Input Current IN R Input Impedance LVIN SMBus Input Electrical Characteristics otherwise specified Symbol Parameter V Data, Clock Input Low ...

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SMBus Switching Characteristics Symbol Parameter f Bus Operating Frequency SMB t Bus free time between stop and start BUF condition t Hold time after (repeated) start HD:STA condition. After this period, the first clock is generated t Repeated Start condition ...

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Symbol Parameter t Peak to Peak Alignment Jitter J RL Output Return Loss t Output Overshoot OS Note 1: “Absolute Maximum Ratings” are limits beyond which the safety of the device cannot be guaranteed not implied that the ...

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To opti- mize the return loss implement a series network comprised of a parallel inductor and resistor. The actual values for these components will vary from application to application, but the typical ...

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WRITING TO REGISTERS VIA THE SMBus INTERFACE To write a data value to a register in the LMH0040, the host writes three bytes to the LMH0040. The first byte is the device address—the device address bit value, ...

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FIGURE 8. TIC 9 30017006 www.national.com ...

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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 48-Lead QFN Plastic Quad Package NS Package Number LQA48A 10 ...

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Notes 11 www.national.com ...

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... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...

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