LMH0356SQE-40/NOPB National Semiconductor, LMH0356SQE-40/NOPB Datasheet

IC RECLOCKER SDI HD/SD 40-LLP

LMH0356SQE-40/NOPB

Manufacturer Part Number
LMH0356SQE-40/NOPB
Description
IC RECLOCKER SDI HD/SD 40-LLP
Manufacturer
National Semiconductor
Type
Reclockerr
Datasheet

Specifications of LMH0356SQE-40/NOPB

Applications
SDTV/HDTV
Mounting Type
Surface Mount
Package / Case
40-LLP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LMH0356SQE-40TR
© 2009 National Semiconductor Corporation
3 Gbps HD/SD SDI Reclocker with 4:1 Input Mux and FR4
EQs
General Description
The LMH0356 3 Gbps HD/SD SDI Reclocker with 4:1 Input
Mux and FR4 EQs retimes serial digital video data conforming
to the SMPTE 424M, SMPTE 292M, and SMPTE 259M (C)
standards. The LMH0356 operates at serial data rates of 270
Mbps, 1.483 Gbps, 1.485 Gbps, 2.967 Gbps, and 2.97 Gbps.
The LMH0356 supports DVB-ASI operation at 270 Mbps. The
LMH0356 includes an integrated 4:1 input multiplexer for se-
lecting one of four input data streams for retiming. In addition,
the four inputs of the LMH0356 each have an FR4 equalizer
capable of equalizing 0-30” of FR4 trace length.
The LMH0356 automatically detects the incoming data rate
and adjusts itself to retime the incoming data to suppress ac-
cumulated jitter. The LMH0356 recovers the serial data-rate
clock and optionally provides it as an output. The LMH0356
has two differential serial data outputs; the second output may
be selected as a low-jitter, data-rate clock output. Controls
and indicators are: serial clock or second serial data output
select, manual rate select input, SD/HD rate indicator output,
lock detect output, auto/manual data bypass, output mute,
and device enable. The serial data inputs, outputs, and serial
clock outputs are differential LVPECL compatible. The CML
serial data and serial clock outputs are suitable for driving
100Ω differentially terminated networks. The control logic in-
puts and outputs are LVCMOS compatible.
The LMH0356 is powered from a single 3.3V supply. Power
dissipation is typically 430 mW. The device is available in two
space–saving packages: a 7 X 7 mm 48-pin LLP (also known
as QFN) and even more space–efficient 5 X 5 mm 40-pin LLP
package.
2.97 Gbps Signal Before FR4
Equalization (0.6 UI Jitter)
30016710
300167
2.97 Gbps Signal After FR4
Equalization (0.23 UI Jitter)
LMH0356
Features
Applications
Supports SMPTE 424M, SMPTE 292M, and SMPTE
259M (C) serial digital video standards
Supports 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.967
Gbps, and 2.97 Gbps serial data rate operation
Supports DVB-ASI at 270 Mbps
Single 3.3V supply operation
430 mW typical power consumption
Integrated 4:1 multiplexed input
0-30” FR4 equalizer on each multiplexed input
Two differential, reclocked outputs
Choice of second reclocked output or recovered clock
output
Single 27 MHz external crystal or reference clock input
Manual rate select input
SD/HD operating rate indicator output
Lock Detect indicator output
Output mute function for data and clock
Auto/Manual reclocker bypass
Power saver mode with device power down control
(10 mW typical power consumption in disabled state)
Differential LVPECL compatible serial data inputs and
outputs
LVCMOS control inputs and indicator outputs
48-pin LLP or 40-pin LLP package
Industrial temperature range: -40°C to +85°C
48-pin LLP version footprint compatible with the LMH0056
and LMH0036
SDTV/HDTV and 3 Gbps serial digital video interfaces for:
— Digital video routers and switchers
— Digital video processing and editing equipment
— DVB-ASI equipment
— Video standards and format converters
30016711
2.97 Gbps Signal After Reclocking
(0.06 UI Jitter)
November 9, 2009
www.national.com
30016712

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LMH0356SQE-40/NOPB Summary of contents

Page 1

... 48-pin LLP (also known as QFN) and even more space–efficient 40-pin LLP package. 2.97 Gbps Signal Before FR4 Equalization (0.6 UI Jitter) 30016710 © 2009 National Semiconductor Corporation LMH0356 Features ■ Supports SMPTE 424M, SMPTE 292M, and SMPTE 259M (C) serial digital video standards ■ ...

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Typical Application Block Diagram www.national.com 2 30016701 30016703 ...

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Pin Descriptions LLP-48 Pin LLP-40 Pin 1 1 SDI0 2 2 SDI0 4 4 SDI1 5 5 SDI1 7 6 SDI2 8 7 SDI2 9 8 ENABLE 10 9 SDI3 11 10 SDI3 15 14 BYPASS/AUTO BYPASS Bypass/Auto Bypass mode ...

Page 4

Connection Diagrams The exposed die attach pad is the primary negative electrical terminal for this device. It must be connected to the negative power supply voltage. www.national.com 48-Pin LLP Order Number LMH0356SQ See NS Package Number SQA48A 4 30016702 ...

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The exposed die attach pad is the primary negative electrical terminal for this device. It must be connected to the negative power supply voltage. 40-Pin LLP Order Number LMH0356SQ-40 See NS Package Number SQF40A 5 30016713 www.national.com ...

Page 6

Absolute Maximum Ratings It is anticipated that this device will not be offered in a military qualified version. If Military/Aerospace specified devices are required, please contact the National Semicon- ductor Sales Office/Distributors for availability and specifica- tions. Supply Voltage (V ...

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AC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. Symbol Parameter BR Serial Data Rate SMPTE 259M Serial Data Rate SMPTE 292M SD BR Serial Data Rate SMPTE 424M SD TOL Serial Input ...

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Symbol Parameter Input rise/fall time Input rise/fall time Input rise/fall time Output rise/fall time Output rise/fall time ...

Page 9

Device Description The LMH0356 3 Gbps HD/SD SDI Reclocker with 4:1 Input Mux and FR4 EQs is used in many types of digital video signal processing equipment. Supported serial digital video stan- dards are SMPTE 259M (C), SMPTE 292M, and ...

Page 10

FIGURE 2. Equivalent SDO Output Circuit (SDO, SDO, SCO/SDO2, SCO/SDO2) OPERATING SERIAL DATA RATES This device operates at serial data rates of 270 Mbps, 1483 Mbps, 1485 Mbps, 2967 Mbps, and 2970 Mbps. The device does not lock to harmonics ...

Page 11

SERIAL DATA INPUT SELECTOR The Serial Data Input Selector (SEL [1:0]) allows the user to select the active input channel. Table 2 lected for a given state of SEL [1:0]. The SEL pins have internal pull-downs. TABLE 2. Data Input ...

Page 12

SD/HD The SD/HD output indicates whether the LMH0356 is pro- cessing Gbps data rates. It may be used to control another device such as the LMH0302 cable driver. When this output is high it indicates ...

Page 13

SCO_EN Input SCO_EN enables the SCO/SDO2 differential output to function either as a serial clock or second serial data output. SCO/SDO2 functions as a serial clock when SCO_EN is high. This pin has an internal pull-down device. The default state ...

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Application Information Figure 4 shows a typical application circuit for the 48-pin LLP version of the LMH0356. ENABLE has an internal pullup to enable the device by de- fault. This pin may be pulled low to put the LMH0356 into ...

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LMH0356. In this figure, the LMH0344 cable equalizer restores the signal after the coaxial cable. The LMH0356 FR4 equalizer restores the signal after the loss ...

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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 48-Pin LLP Order Number LMH0356SQ NS Package Number SQA48A 40-Pin LLP Order Number LMH0356SQ-40 NS Package Number SQF40A 16 ...

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Notes 17 www.national.com ...

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