Features 24–bit data, 3–bit control, 10 – 75 MHz clock AC coupled STP interconnect cable up to 10 meters Integrated terminations on Ser and Des AT-SPEED link BIST mode and reporting pin Optional I2C compatible Serial Control Bus Power down mode minimizes power dissipation 1.8V or 3.3V compatible LVCMOS I/O interface -40° to +85°C temperature range >8 kV HBM SERIALIZER — DS92LV2421 Data scrambler for reduced EMI DC-balance encoder for AC coupling Selectable output VOD and adjustable de-emphasis DESERIALIZER — DS92LV2422 FAST random data lock; no reference clock required Adjustable input receiver equalization LOCK (real time link status) reporting pin EMI minimization on output parallel bus (SSCG) Output Slew control (OS) Description The DS92LV2421 (Serializer) / DS92LV2422 (Deserializer) chipset translates a parallel 24–bit LVCMOS data interface into a single high-speed CML serial interface with embedded clock information. This single serial stream eliminates skew issues between clock and data, reduces connector size and interconnect cost for transferring a 24-bit or less, bus over FR-4 printed circuit board backplanes, and balanced cables. In addition to the 24-bit data bus interface, the DS92LV2421 and DS92LV2422 also features a 3-bit control bus for slow speed signals. This allows implementing video and display applications with up to 24–bits per pixel (RGB). Programmable transmit de-emphasis, receive equalization, on-chip scrambling and DC balancing enables longer distance transmission over lossy cables and backplanes. The DS92LV2422 automatically locks to incoming data without an external reference clock or special sync patterns, providing easy “plug-and-go” operation. EMI is minimized by the use of low voltage differential signaling, receiver drive strength control, and spread spectrum clocking capability. The DS92LV2421, DS92LV2422 chipset is programmable though an I2C interface as well as through pins. A built-in AT-SPEED BIST feature validates link integrity and may be used for system diagnostics. The DS92LV2421 is offered in a 48-pin LLP and the DS92LV2422 is offered in a 60-pin LLP package. Both devices operate over the full industrial temperature range of -40°C to +85°C. Applications Embedded Video and Display Medical Imaging Factory Automation Office Automation — Printer, Scanner Security and Video Surveillance General purpose data communication

Also Recommended DS92LV0422▲ Companion Deserializer With LVDS Outputs DS92LV2411▲ Lower Frequency Serializer DS92LV2422▲ Companion Deserializer Applications Diagram

Typical Application *click for larger image Applications Diagram	Block Diagram *click for larger image DS92LV2421 BLOCK DIAGRAM

Parameters / Values	DS92LV2421	DS92LV0422	DS92LV2411	DS92LV2422
Function	Serializer	Deserializer	Serializer	Deserializer
Total Throughput	1800 Mbps	1800 Mbps	1200 Mbps	1800 Mbps
Payload/Channel	1800 Mbps	1800 Mbps	1200 Mbps	1800 Mbps
Signal Conditioning	De-Emphasis	EQ Input	De-Emphasis	EQ input
Clock Min	10 MHz	10 MHz	5 MHz	10 MHz
Clock Max	75 MHz	75 MHz	50 MHz	75 MHz
Input Compatibility	LVCMOS	CML	LVCMOS	CML
Output Compatibility	CML	LVDS	CML	LVCMOS
Reference Clock Req'd Deserializer	No	No		No
Start/Stop Bit	Yes	Yes	Yes	Yes
EMI Reduction	VOD Control, SSC Compatible	SSCG, LVDS Outputs	SSC Compatible, VOD Control	SSCG, Slew Rate Control
Other Supply	1.8V or 3.3V VDDIO	3.3V	1.8V or 3.3V VDDIO	1.8V or 3.3V VDDIO
SupplyVoltage	1.8 Volt	1.8 Volt	1.8 Volt	1.8 Volt
Special Features	BIST Mode	BIST Mode	BIST Mode	EQ Monitor, BIST Mode
ESD	8 kV	8 kV	8 kV	8 kV
Temperature Min	-40 deg C	-40 deg C	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C	85 deg C	85 deg C
Compression Ratio	24:1	1:4	24:1	1:24
Parallel Bus Width	24 bits	4 bits	24 bits	24 bits
JTAG1149.1	No		No	No
Automotive	No	No	No	No
PowerWise	No	No	No	No
Communications	No	No	No	No
Sensing & Imaging	No	No	No	No

Datasheets

Title		Size	Date	Other Language
	DS92LV2421 10 to 75 MHz, 24-bit Channel-Link II Serializer	1135 Kbytes	14-Jan-11	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1909: Application Note 1909 DS15BA101 and DS15EA101 Enable Long Reach Applications for Embedded Clock SER/DES	360 Kbytes	2-Mar-09	中文

Other Technical Documents

Title		Type	Date
	Channel Link II Design Guide	Design Guide	2011-01-21
	Simplifying the Embedded Video Interface (with Channel Link II and FPGA-Link SerDes)	External Article	2010-07-21
	Go the Distance: Industrial SerDes with Embedded Clock and Control	Signal Path Designer	2010-10-20

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS92LV2421SQ/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$5.95 each at 1K+ pcs	reel of 1000
DS92LV2421SQE/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 250 DIGI-KEY Worldwide 103 FARNELL Europe and Asia 246 MOUSER Worldwide 68	$5.95 each at 1K+ pcs	reel of 250
DS92LV2421SQX/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$5.95 each at 1K+ pcs	reel of 2500

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS92LV2421.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS92LV2421 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LV24EVK01/NOPB	LV24EVK01 Evaluation Kit	Preliminary Lead Free (RoHS)	Distributor Region Qty AVNET-EM Worldwide 2 DIGI-KEY Worldwide 0 MOUSER Worldwide 1	$399.00 each	1
Description: The LV24EVK01 is an evaluation kit designed to demonstrate performance and capabilities of the DS92LV2421 and DS92LV2422 Channel Link II Serializer/Deserializer chipset. The DS92LV2421 serializer board accepts LVCMOS input signals and provides a single serialized Channel Link II CML data pair as an output. The DS92LV2422 deserializer board accepts the CML serialized data stream and converts the data back into parallel LVCMOS signals. A USB cable is provided as a generic medium for the high speed data link. Jumpers and switches on the boards can be configured for evaluation of chipset features such as de-emphasis, equalization, SSCG and backward compatibility. An I2C interface provides an alternative method to configure features of the serializer and deserializer Contents: One serializer board with the DS92LV2421 One deserializer board with the DS92LV2422 One 2-meter USB 2.0 Hi-SPEED cable assembly Evaluation kit documentation What the user needs to provide: A 24-bit data bus and clock source - for example a video generator A data error checker or display - for example an LCD panel and interface from the deserializer board to the panel itself, or test equipment Power supply for both boards LV24EVK01 User`s Guide

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
DS92LV2421SQ/NOPB	123.191 123.695	LLP	48	3	260	Detail	N/A	N/A	NS UZXYTTE# LV2421SQ
DS92LV2421SQE/NOPB	123.191 123.695	LLP	48	3	260	Detail	N/A	N/A	NS UZXYTTE# LV2421SQ
DS92LV2421SQX/NOPB	123.191 123.695	LLP	48	3	260	Detail	N/A	N/A	NS UZXYTTE# LV2421SQ

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS92LV2421.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS92LV2421 is located at RoHS Status.

CAD Symbols and Models N/A

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS92LV2421SQ	CMOS9	1	7912	127	0	1193000	3	338517007
DS92LV2421SQE	CMOS9	1	7912	127	0	1193000	3	338517007
DS92LV2421SQX	CMOS9	1	7912	127	0	1193000	3	338517007

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS92LV2421.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS92LV2421 is located at RoHS Status.

DS92LV2421 22 Channel Link II SerDes BERT Demo Loading video... Channel Link II & III SerDes for Imaging & Display Applications Loading video... Factory Automation Overview Loading video...

DS92LV2421 22 Channel Link II SerDes BERT Demo Date: 2010-05-14 Length: 0:01:58 Channel Link II & III SerDes for Imaging & Display Applications Date: 2010-07-28 Length: 0:05:31 Factory Automation Overview Date: 2009-08-04 Length: 0:32:30