IC RECLOCKER SD SDI 3.3V 48-LLP

LMH0036SQ/NOPB

Manufacturer Part NumberLMH0036SQ/NOPB
DescriptionIC RECLOCKER SD SDI 3.3V 48-LLP
ManufacturerNational Semiconductor
TypeReclocker
LMH0036SQ/NOPB datasheet
 

Specifications of LMH0036SQ/NOPB

ApplicationsSDTV/HDTVMounting TypeSurface Mount
Package / Case*Operating Temperature (max)85C
Operating Temperature (min)-40CPin Count48
MountingSurface MountLead Free Status / RoHS StatusLead free / RoHS Compliant
Other namesLMH0036SQ  
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LMH0036
SD SDI Reclocker with 4:1 Input Multiplexer
General Description
The LMH0036 SD SDI Reclocker with 4:1 Input Multiplexer
retimes serial digital video data conforming to the SMPTE
259M (C) standard. The LMH0036 operates at the serial data
rate of 270 Mbps, and also supports DVB-ASI operation at
270 Mbps. The LMH0036 includes an integrated 4:1 input
multiplexer for selecting one of four input data streams for re-
timing.
The LMH0036 retimes the incoming data to suppress accu-
mulated jitter. The LMH0036 recovers the serial data-rate
clock and optionally provides it as an output. The LMH0036
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 indicator output, lock de-
tect output, auto/manual data bypass, and output mute. The
serial data inputs, outputs, and serial data-rate clock outputs
are differential LVPECL compatible. The CML serial data and
serial data-rate clock outputs are suitable for driving 100Ω
differentially terminated networks. The control logic inputs
and outputs are LVCMOS compatible.
The LMH0036 is powered from a single 3.3V supply. Power
dissipation is typically 360 mW. The device is housed in a 48-
pin LLP package.
Typical Application
© 2008 National Semiconductor Corporation
Features
Supports SMPTE 259M (C) serial digital video standard
Supports 270 Mbps serial data rate operation
Supports DVB-ASI at 270 Mbps
Single 3.3V supply operation
360 mW typical power consumption
Integrated 4:1 multiplexed input
Two differential, reclocked outputs
Choice of second reclocked output or low-jitter,
differential, data-rate clock output
Single 27 MHz external crystal or reference clock input
Lock Detect indicator output
Output mute function for data and clock
Auto/Manual reclocker bypass
Differential LVPECL compatible serial data inputs and
outputs
LVCMOS control inputs and indicator outputs
48-Pin LLP package
Industrial temperature range: -40°C to +85°C
Footprint compatible with the LMH0056 and LMH0356
Applications
SDTV serial digital video interfaces for:
— Digital video routers and switchers
— Digital video processing and editing equipment
— DVB-ASI equipment
— Video standards and format converters
300031
August 19, 2008
30003101
www.national.com

LMH0036SQ/NOPB Summary of contents

  • Page 1

    ... LVCMOS compatible. The LMH0036 is powered from a single 3.3V supply. Power dissipation is typically 360 mW. The device is housed in a 48- pin LLP package. Typical Application © 2008 National Semiconductor Corporation Features ■ Supports SMPTE 259M (C) serial digital video standard ■ Supports 270 Mbps serial data rate operation ■ ...

  • Page 2

    Block Diagram www.national.com 2 30003103 ...

  • Page 3

    Connection Diagram The exposed die attach pad is the primary negative electrical terminal for this device. It must be connected to the negative power supply voltage. 48-Pin LLP Order Number LMH0036SQ See NS Package Number SQA48A 3 30003102 www.national.com ...

  • Page 4

    Pin Descriptions Pin Name 1 SDI0 2 SDI0 4 SDI1 5 SDI1 7 SDI2 8 SDI2 10 SDI3 11 SDI3 15 BYPASS/AUTO BYPASS 16 OUTPUT MUTE 18 XTAL IN/EXT CLK 22 XTAL OUT 24 LOCK DETECT 28 SCO/SDO2 29 SCO/SDO2 ...

  • Page 5

    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 ...

  • Page 6

    AC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. (Note 3) Symbol Parameter BR Serial Data Rate SD TOL Serial Input Jitter JIT Tolerance TOL Serial Input Jitter JIT Tolerance t Serial Data Output Jitter JIT ...

  • Page 7

    Device Description The LMH0036 SD SDI Reclocker with 4:1 Input Multiplexer is used in many types of digital video signal processing equip- ment. The LMH0036 supports the SMPTE 259M (C) stan- dard, with a corresponding serial data rate of 270 ...

  • Page 8

    FIGURE 2. Equivalent SDO Output Circuit (SDO, SDO, SCO/SDO2, SCO/SDO2) SERIAL DATA CLOCK/SERIAL DATA 2 OUTPUT The Serial Data Clock/Serial Data 2 Output is controlled by the SCO_EN input and provides either a second retimed se- rial data output or ...

  • Page 9

    LOCK DETECT OUTPUT MUTE BYPASS/AUTO BYPASS LOCK DETECT 1 LOCK DETECT SD The SD output indicates that the LMH0036 is locked and pro- cessing SD data rates. It may be used to control ...

  • Page 10

    Application Information Figure 4 shows a application circuit for the LMH0036. BYPASS/AUTO BYPASS has an internal pulldown to enable Auto Bypass mode by default. This pin may be pulled high to force the LMH0036 to bypass all data. OUTPUT MUTE ...

  • Page 11

    The outputs are LVPECL compatible. SDO is the primary data output and SCO/SDO2 is a second output that may be set as the serial clock or a second data output. Both outputs are al- ways active. The LMH0036 output should ...

  • Page 12

    Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 48-Pin LLP Order Number LMH0036SQ NS Package Number SQA48A 12 ...

  • Page 13

    Notes 13 www.national.com ...

  • Page 14

    ... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...