SCAN921821 - Dual 18-Bit Serializer with Pre-Emphasis, IEEE 1149.1 (JTAG), and At-Speed BIST
Datasheet Packaging Samples & Pricing Reliability Design Tools Models Knowledge Base

Features
•15-66 MHz Dual 18:1 Serializer with 2.376 Gbps total throughput
•8-level selectable pre-emphasis on each channel drives lossy cables and backplanes
•>15kV HBM ESD protection on Bus LVDS I/O pins
•Robust BLVDS serial data transmission with embedded clock for exceptional noise immunity and low EMI
•Power saving control pin for each channel
•IEEE 1149.1 "JTAG" Compliant
•At-Speed BIST - PRBS generation
•No external coding required
•Internal PLL, no external PLL components required
•Single +3.3V power supply
•Low power: 260 mW (typ) per channel at 66 MHz with PRBS-15 pattern
•Single 3.3 V supply
•Fabricated with advanced CMOS process technology
•Industrial -40 to +85°C temperature range
•Compact 100-ball FBGA package

General Description

The SCAN921821 is a dual channel 18-bit serializer featuring signal conditioning, boundary SCAN, and at-speed BIST. More...


 

ParametersValues
Function Serializer
Total Throughput 2376 Mbps
Payload/Channel 1188 Mbps
Signal Conditioning Pre-Emphasis
Clock Min 15 MHz
Clock Max 66 MHz
Input Compatibility LVTTL
Output Compatibility LVDS/BLVDS
Start/Stop Bit Yes
Power Consumption_ 594 mW
SupplyVoltage 3.3 Volt
ESD 15 kV
Temperature Min -40 deg C
Temperature Max 85 deg C
Compression Ratio 18:1
Parallel Bus Width 18 bits
Number Transmitters 2
JTAG1149.1 Yes
Communications Yes
Sensing & Imaging Yes

Additional Resources

Online Seminars Design Tools


Block Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
SCAN921821 Dual 18-Bit Serializer with Pre-emphasis, IEEE 1149.1 (JTAG), and At-Speed BIST 629
Kbytes		 5-Nov-04 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
SCAN921821TSMFBGA100NOPB
STD		4
3		260
235		RoHS Download Full production
scan921821tsm.ibs		Samples
Buy Now 		1K+$7.75tray
of
240		NSUZXYTTE#
SCAN921821
TSM
14 weeks50

General Description

The SCAN921821 is a dual channel 18-bit serializer featuring signal conditioning, boundary SCAN, and at-speed BIST. Each serializer block transforms an 18-bit parallel LVCMOS/LVTTL data bus into a single Bus LVDS data stream with embedded clock. This single serial data stream with embedded clock simplifies PCB design and reduces PCB cost by narrowing data paths that in turn reduce PCB size and layers. The single serial data stream also reduces cable size, the number of connectors, and eliminates clock-to-data and data-to-data skew.

Each channel also has an 8-level selectable pre-emphasis feature that significantly extends performance over lossy interconnect. Each channel also has its own powerdown pin that saves power by reducing supply current when the channel is not being used.

The SCAN921821 also incorporates advanced testability features including IEEE 1149.1 and at-speed BIST PRBS pattern generation to facilitate verification of board and link integrity

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
SCAN921821TSMCMOS811314055016155003458102536

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.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
See the 18-bit SerDes Design Guide 2886 Kbytes 29-Mar-2007 View Online Download  
"LVDS-18B-EVK for Pricing Information, see the DS92LV18 Product Folder"     View    

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1376: Application Note 1376 External Serial Interface Reduces Simultaneous Switching Output Noise in FPGAs 1758
Kbytes		 2-May-05 Download
AN-1909: Application Note 1909 DS15BA101 and DS15EA101 Enable Long Reach Applications for Embedded Clock SER/DES 360
Kbytes		 2-Mar-09 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]