Product category:
Resistors
News Release from: BI Technologies Electronic Components Division | Subject: BB1020DTLF
Edited by the Electronicstalk Editorial
Team on 28 November 2006
Resistor network simplifies SCSI
termination
Low voltage differential network is designed to terminate high performance SPI-2 (Ultra2) and SPI-3 (Ultra3) bused applications.
Providing design engineers with a network device designed for the termination of high speed applications, TT Electronics BI Technologies Electronic Components Division has released a RoHS-compliant SCSI termination resistor network Designated the BB1020DTLF, the low voltage differential (LVD) network is designed to terminate high performance SPI-2 (Ultra2) and SPI-3 (Ultra3) bused applications
This article was originally published on Electronicstalk on 3 Oct 2005 at 8.00am (UK)
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According to Mike Torres, Product Manager for BI Technologies' Electronic Components Division, the BGA network design is optimised for minimal stray capacitance and exceptional high frequency performance.
"This network utilises thick film resistors on a ceramic substrate with ball grid array terminals", said Torres.
"The resistors and terminal balls are placed on the same side of the ceramic substrate, resulting in the absolute minimum stray capacitance and inductance characteristics".
As a result of the design, wide SCSI bus applications can be terminated with three BB1020DT Series networks and one linear regulator IC, Torres continued.
The BB1020DT Series networks feature 18 resistors with a nominal resistance of 475ohm and nine resistors with a nominal resistance of 121ohm.
Absolute tolerance is +/-1%, with TCR of +/-100ppm/C.
Power rating is 1W per network at 70C.
Inter-lead capacitance is less than 0.1pF.
And operating temperature range is -55 to +125C.
BI Technologies will also produce devices outside these specifications to meet customer requirements.
The BGA network measures 0.20 x 0.45in, with solder balls on 0.05in centres.
Each of the BB1020DTLF devices contains low voltage differential termination for up to nine lines.
The termination network is surface mountable with automated pick and place equipment.
The balls for the RoHS-compliant version utilise a copper core and are tin plated.
Typical pricing for the BB1020DTLF SCSI termination network is approximately US $0.70 each in quantities of 10,000 pieces, with lead times from stock to 8 weeks.
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