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LMH0340SQE Datasheet, PDF (3/30 Pages) Texas Instruments – 3 Gbps, HD, SD, DVB-ASI SDI Serializer and Cable Driver With LVDS Interface
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Pin Name
Type
LVDS Input Interface
TX[4:0]+
TX[4:0]-
Input, LVDS
TXCLK+
TXCLK-
Input, LVDS
Serial Output Interface
TXOUT+
Output, CML
TXOUT-
Output, CML
SMBus Interface
SDA
SCK
SMB_CS
I/O, LVCMOS
Input, LVCMOS
Input, LVCMOS
Control and Configuration Pins
RESET
Input, LVCMOS
LOCK
Output, LVCMOS
DVB_ASI
Input, LVCMOS
GPIO[2:0]
RSVD_H
Analog Inputs
RSET
I/O, LVCMOS
Input, LVCMOS
Input, analog
LF_CP
Input, analog
LF_REF
Input, analog
DNC
Power Supply and Ground
VDD3V3
VDDPLL
VDD2V5
GND
Power
Power
Power
Ground
Device
LMH0340
LMH0040
LMH0070
LMH0050
SMPTE 424M
Support (3G)
X
PIN DESCRIPTIONS
Description
LMH0040, LMH0050
LMH0070, LMH0340
SNLS271I – APRIL 2007 – REVISED APRIL 2013
LVDS Data Input Pins
Five channel wide DDR interface. Internal 100Ω termination.
LVDS Clock Input Pins
DDR Interface. Internal 100Ω termination.
Serial Digital Interface Output Pin
Non-Inverting Output
Serial Digital Interface Output Pin
Inverting Output
SMBus Data I/O Pin
SMBus Clock Input Pin
SMBus Chip Select Input Pin
Device is selected when High.
Reset Input Pin
H = normal mode
L = device in RESET
PLL LOCK Status Output
H = unlock condition
L = Device is Locked
DVB_ASI Select Input
H = DVB_ASI Mode enabled
L = Normal Mode enabled
General Purpose Input / Output
Software configurable I/O pins.
Configuration Input – Must tie High
Pull High via 5 kΩ resistor to VDD3V3
Serial Output Amplitude Control
Resistor connected from this pin to ground to set the signal amplitude. Nominally
8.06kΩ for 800mV output (SMPTE).
Loop Filter Connection
Loop Filter Reference
Do Not Connect – Leave Open
3.3V Power Supply connection
3.3V PLL Power Supply connection
2.5V Power Supply connection
Ground connection – The DAP (large center pad) is the primary GND connection for
the device and must be connected to Ground along with the GND pins.
Table 1. Feature Table
SMPTE 292M
Support (HD)
X
X
X
SMPTE 259M
Support (SD)
X
X
X
X
DVB-ASI
Support
X
X
X
X
SMPTE compliant
Cable Driver
X
X
X
Copyright © 2007–2013, Texas Instruments Incorporated
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Product Folder Links: LMH0040 LMH0050 LMH0070 LMH0340