DS2129
Description
The DS2129 is a triple-output voltage regulator for 27-line, low-voltage-differential (LVD) SCSI termination for SPI-2 and SPI-3 applications using LVD termination networks. The device provides reference voltages and bias currents for LVD-termination resistor pi (π) networks. With a pi network (475Ω , 121 Ω , 475 Ω ), the DS2129 meets the mon-mode bias, differential bias, and termination-impedance requirements of SPI-2 (Ultra2) and SPI-3 (Ultra3). The device also provides a 1.3V output for DIFFSENSE signaling, and includes protection features such as thermal shutdown and active current limiting.
- 2.7V to 5.25V Operation
- Differential Fail-Safe Bias
Features
- Fully pliant with SPI-2 and SPI-3
Applications
SCSI Array Backplane SCSI Cables
PART- DS2129S
Ordering Information
VOLTAGE (V) 5 5 5 5 PINPACKAGE 16 SO 16 SO 16 SO 16 SO TOP MARK-
- DS2129 DS2129 DS2129 DS2129
Block Diagram
DS2129S+ DS2129S/T&R DS2129S+T&R
TERMPWR
PTAT BANDGAP (1.25V) REF125 THERMAL...
