ISL23428 - Low Voltage Digitally Controlled Potentiometer
TSSOP 1, 7 2 UTQFN 5, 6, 15 16 31 42 53 64 88 99 10 10 11 11 12 12 13 13 14 14 -7 SYMBOL DESCRIPTION GND Ground pin VLOGIC SPI bus/logic supply Range 1.2V to 5.5V SDO Logic Pin - Serial bus data output (configurable) SCK Logic Pin - Serial bus clock input SDI Logic Pin - Serial bus data
DATASHEET ISL23428 Dual, 128-Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™) FN7904 Rev 2.00 September 23, 2015 The ISL23428 is a volatile, low voltage, low noise, low power, 128-tap, dual digitally controlled potentiometer (DCP) with an SPI Bus™ interface.
It integrates two DCP cores, wiper switches and control logic on a monolithic CMOS integrated circuit.
Each digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches.
The positi
ISL23428 Features
* Two potentiometers per package
* 128 resistor taps
* 10k 50kor 100k total resistance
* SPI serial interface - No additional level translator for low bus supply - Daisy Chaining of multiple DCPs
* Power supply - VCC = 1.7V to 5.5V analog power supply - V
