LMH0340SQE Datasheet, PDF (1/30 Pages) Texas Instruments – 3 Gbps, HD, SD, DVB-ASI SDI Serializer and Cable Driver With LVDS Interface

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LMH0040, LMH0050
LMH0070, LMH0340
SNLS271I – APRIL 2007 – REVISED APRIL 2013
3 Gbps, HD, SD, DVB-ASI SDI Serializer and Cable Driver With LVDS Interface
Check for Samples: LMH0040, LMH0050, LMH0070, LMH0340
FEATURES
1
•2 LVDS Interface to Host FPGA
• No External VCO or Clock Ref Required
• Integrated Variable Output Cable Driver
• 3.3V SMBus Configuration Interface
• Integrated TXCLK PLL Cleans Clock Noise
• Small 48-Pin WQFN Package
• Industrial Temperature range: -40°C to 85°C
APPLICATIONS
• SDI Unterfaces for:
– Video Cameras
– DVRs
– Video Switchers
– Video Editing Systems
KEY SPECIFICATIONS
• Output Compliant With SMPTE 424M, SMPTE
292M, SMPTE 259M-C and DVB-ASI (See
Table 1)
• Typical Power Dissipation: 440 mW
• 30 ps Typical Output Jitter (HD, 3G)
DESCRIPTION
The LMH0340/0040/0070/0050 SDI Serializers are
part of TI’s family of FPGA-Attach SER/DES products
supporting 5-bit LVDS interfaces with FPGAs. An
FPGA Host will format data with supplied IP such that
the output of the LMH0340 is compliant with the
requirements of DVB-ASI, SMPTE 259M-C, SMPTE
292M and SMPTE 424M standards. See Table 1 for
details on which Standards are supported per device.
The interface between the SER (Serializer) and the
FPGA consists of a 5 bit wide LVDS data bus, an
LVDS clock and an SMBus interface. The
LMH0340/0040/0070 SER devices include an
integrated cable driver which is fully compliant with all
of the SMPTE specifications listed above. The
LMH0050 has a CML output driver that can drive a
differential transmission line or interface to a cable
driver.
The FPGA-Attach SER/DES family is supported by a
suite of IP which allows the design engineer to
quickly develop video applications using the
SER/DES products. The SER is packaged in a
physically small 48-pin WQFN package.
General Block Diagram
SDA
SCK
SMB_CS
RESET
DVB_ASI
SMBus
Control
LOCK
GPIO[2:0]
TX4
TX3
TX2
TX1
TX0
TXCLK
LVDS Receivers
PLL Clock
Generation
TXOUT
SMPTE Cable Driver
1
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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