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SCAN928028

Part Number	SCAN928028
Manufacturer	National Semiconductor
Description	8 Channel 10:1 Serializer with IEEE 1149.1 and At-Speed BIST
Published	Apr 8, 2005
Detailed Description	SCAN928028 8 Channel 10:1 Serializer with IEEE 1149.1 and At-Speed BIST September 2003 SCAN928028 8 Channel 10:1 Seria...
Datasheet	SCAN928028 PDF File

Overview

SCAN928028 8 Channel 10:1 Serializer with IEEE 1149.
1 and At-Speed BIST September 2003 SCAN928028 8 Channel 10:1 Serializer with IEEE 1149.
1 and At-Speed BIST General Description The SCAN928028 integrates eight serializer devices into a single chip.
The SCAN928028 can simultaneously serialize up to eight 10-bit data streams.
The 10-bit parallel inputs are LVTTL signal levels.
The serialized outputs are LVDS signals with extra drive current for point-to-point and lightly loaded multidrop applications.
Each serializer block in the SCAN928028 operates independently by using strobes from a single shared PLL.
The SCAN928028 uses a single +3.
3V power supply with a typical power dissipation of 740mW (3.
3V / PRBS / 66 MHz).
Each serializer channel has a unique power down control to further conserve power consumption.
For high-speed LVDS serial data transmission, line quality is essential, thus the SCAN928028 includes an @SPEED TEST function.
Each Serializer channel has the ability to internally generate a PRBS data pattern.
This pattern is received by specific deserializers (SCAN921224) which have the complement PRBS verification circuit.
The deserializer checks the data pattern for bit errors and reports any errors on the test verification pins on the deserializer.
For additional information - please see the Applications Information section in this datasheet.
Features n IEEE 1149.
1 (JTAG) Compliant and At-Speed BIST test mode.
n All 8 channels synchronous to one parallel clock rate, from 25 to 66 MHz n Duplicates function of multiple DS92LV1021 and ’1023 10-bit Serializer devices n Serializes from one to eight 10-bit parallel inputs into data streams with embedded clock n Eight 5 mA modified Bus LVDS outputs that are capable to drive double terminations n @Speed Test - PRBS generation to check LVDS transmission path to SCAN921224, SCAN921226, SCAN921260, or SCAN926260 n On chip filtering for PLL n 740mW typ power dissipation (loaded, PRBS, 66MHz, 3.
3V) n High impedance ...

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