LMH0346 - 3 Gbps HD/SD SDI Reclocker with Dual Differential Outputs

Datasheet	Packaging	Samples & Pricing	Eval. Boards	Application Notes	Knowledge Base

Features

•	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
•	370 mW typical power consumption
•	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
•	Manual or automatic rate select input
•	SD/HD operating rate indicator output
•	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
•	20-pin e-TSSOP or 24-pin LLP package
•	Industrial temperature range: -40°C to +85°C
•	Footprint compatible with the LMH0046 and LMH0026 (e-TSSOP package)

General Description

The LMH0346 3 Gbps HD/SD SDI Reclocker retimes serial digital video data conforming to the SMPTE 424M, SMPTE 292M, and SMPTE 259M (C) standards. More...

Applications

•	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

Typical Application

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Typical Application

Parametric Table expand

Parametric Table collapse

Max Data Rate 2970 Mbps

SupplyVoltage 3.3 Volt

OtherSupply Voltage Undefined

Output Jitter 0.01 UI

4:1 Input Mux No

Dual Differential Outputs Yes

Power Consumption_ 370 mW

Rise/Fall Times 90 ps

Temperature Min -40 deg C

Temperature Max 85 deg C

Max Data Rate 2970 Mbps

SupplyVoltage 3.3 Volt

OtherSupply Voltage Undefined

Output Jitter 0.01 UI

4:1 Input Mux No

Dual Differential Outputs Yes

Power Consumption_ 370 mW

Rise/Fall Times 90 ps

Temperature Min -40 deg C

Temperature Max 85 deg C

Supply Current 111 mA

OtherSupply Current Undefined

Output Swing 0.75 Volt

Function Reclocker

View Using Catalog

Also Recommended

LMH0303	Also See LMH0303 Triple-rate SDI Cable Driver With Cable Detection
LMH0356	Also See LMH0356 Triple-rate SDI Reclocker With 4:1 Mux And FR4 EQ
LMH0384	Also See LMH0384 Triple-rate SDI Extended Reach Equalizer

Additional Resources

Application Notes (see below)

Connection Diagram

*click for larger image

Connection Diagram

*click for larger image

Connection Diagram

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LMH0346 3 Gbps HD/SD SDI Reclocker with Dual Differential Outputs	358 Kbytes	18-May-09	Download

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

SD3GDAEVK

SD3GDAEVK Evaluation Boards

Preliminary

N/A

$250.00

N/A

LMH0346MH

TSSOP EXP PAD

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$22.00

rail
of
73

NSUZXYTT
L0346

6 weeks

N/A

LMH0346MHX

TSSOP EXP PAD

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$22.00

reel
of
2500

NSUZXYTT
L0346

6 weeks

N/A

LMH0346SQE

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$22.00

reel
of
250

NS
UZXYTT
L0346SQ

6 weeks

N/A

LMH0346SQ

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$22.00

reel
of
1000

NS
UZXYTT
L0346SQ

6 weeks

N/A

LMH0346SQX

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$22.00

reel
of
4500

NS
UZXYTT
L0346SQ

6 weeks

N/A

General Description

The LMH0346 3 Gbps HD/SD SDI Reclocker retimes serial digital video data conforming to the SMPTE 424M, SMPTE 292M, and SMPTE 259M (C) standards. The LMH0346 operates at serial data rates of 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.967 Gbps, and 2.97 Gbps. The LMH0346 supports DVB-ASI operation at 270 Mbps.

The LMH0346 automatically detects the incoming data rate and adjusts itself to retime the incoming data to suppress accumulated jitter. The LMH0346 recovers the serial data-rate clock and optionally provides it as an output. The LMH0346 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 and output mute. 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 inputs and outputs are LVCMOS compatible.

The LMH0346 is powered from a single 3.3V supply. Power dissipation is typically 370 mW.

The device is available in two space–saving packages: a 6.5 X 4.4 mm 20-pin e-TSSOP and an even more space–efficient 5 X 4 mm 24-pin LLP package.

More Application Notes

Title	Size in Kbytes	Date
AN-1971: Application Note 1971 Triple Rate SDI IP FPGA Resource Utilization on the SDXILEVK/AES-EXP-SDI-G Reference Design	195 Kbytes	6-May-09	Download
AN-1934: Application Note 1934 Failsafe Options for LVDS Receivers	122 Kbytes	20-Jan-09	Download

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[Information as of 3-Jul-2009]