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X9408YZ24I-2.7T5

Description
Digital Potentiometer, 4 Func, 2500ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PBGA24, XBGA-24
CategoryAnalog mixed-signal IC    converter   
File Size175KB,29 Pages
ManufacturerXicor Inc.
Download Datasheet Parametric View All

X9408YZ24I-2.7T5 Overview

Digital Potentiometer, 4 Func, 2500ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PBGA24, XBGA-24

X9408YZ24I-2.7T5 Parametric

Parameter NameAttribute value
MakerXicor Inc.
package instructionXBGA-24
Reach Compliance Codeunknown
Other featuresNONVOLATILE MEMORY
control interface2-WIRE SERIAL
Converter typeDIGITAL POTENTIOMETER
JESD-30 codeR-PBGA-B24
length3.824 mm
Number of functions4
Number of positions64
Number of terminals24
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeVFBGA
Package shapeRECTANGULAR
Package formGRID ARRAY, VERY THIN PROFILE, FINE PITCH
Certification statusNot Qualified
resistance lawLINEAR
Maximum resistor tolerance20%
Maximum resistor terminal voltage5.5 V
Minimum resistor terminal voltage-5.5 V
Maximum seat height0.763 mm
surface mountYES
technologyCMOS
Nominal temperature coefficient300 ppm/°C
Temperature levelINDUSTRIAL
Terminal formBALL
Terminal pitch0.5 mm
Terminal locationBOTTOM
Nominal total resistance2500 Ω
width2.605 mm
A
PPLICATION
N
OTES
A V A I L A B L E
AN99 • AN115 • AN124 • AN133 • AN134 • AN135
Low Noise/Low Power/2-Wire Bus
X9408
Quad Digitally Controlled (XDCP
) Potentiometers
FEATURES
Four separate XDCP’s in one package
64 resistor taps per potentiometer
2-wire serial interface
Wiper resistance, 150
typical
Four nonvolatile data registers for each pot
Nonvolatile storage of wiper position
Standby current < 1µA max (total package)
V
CC
= 2.7V to 5.5V operation
V+ = 2.7V to 5.5V
V– = –2.7V to –5.5V
• 10K
, 2.5K
total pot resistance
• 100 year data retention
• 24-lead SOIC, 24-lead TSSOP, and 24-lead XBGA
packages
DESCRIPTION
The X9408 integrates four digitally controlled
potentiometers (XDCP) on a monolithic CMOS
integrated circuit.
The digital controlled potentiometer is implemented
using 63 resistive elements in a series array. Between
each element are tap points connected to the wiper
terminal through switches. The position of the wiper on
the array is controlled by the user through the SPI bus
interface. Each potentiometer has associated with it a
volatile Wiper Counter Register (WCR) and four non-
volatile Data Registers that can be directly written to
and read by the user. The contents of the WCR
controls the position of the wiper on the resistor array
though the switches. Powerup recalls the contents of
the default data register (DR0) to the WCR.
The XDCP can be used as a three-terminal
potentiometer or as a two terminal variable resistor in
a wide variety of applications including control,
parameter adjustments, and signal processing.
BLOCK DIAGRAM
V
CC
V
SS
V+
V-
R0 R1
Pot 0
Wiper
Counter
Register
(WCR)
R
H0
R0 R1
Wiper
Counter
Register
(WCR)
R
H2
WP
SCL
SDA
A0
A1
A2
A3
Interface
and
Control
Circuitry
Data
R2 R3
R
L0
R
W0
R2 R3
Resistor
Array
Pot 2
R
L2
R
W2
8
R
W1
R0 R1
Wiper
Counter
Register
(WCR)
Resistor
Array
Pot 1
R
H1
R0 R1
Wiper
Counter
Register
(WCR)
R
W3
R
H3
R2 R3
R
L1
R2 R3
Resistor
Array
Pot 3
R
L3
REV 1.0 6/20/00
www.xicor.com
Characteristics subject to change without notice.
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