x9401ys24iz-2.7 Intersil Corporation, x9401ys24iz-2.7 Datasheet

no-image

x9401ys24iz-2.7

Manufacturer Part Number
x9401ys24iz-2.7
Description
Qual Digitally Controlled Potentiometer Xdcp?
Manufacturer
Intersil Corporation
Datasheet
Quad, 64 Tap, Digitally Controlled
Potentiometer (XDCP™)
FEATURES
• Quad–4 separate pots, 64 taps/pot
• Nonvolatile storage of wiper position
• Four Nonvolatile Data Registers for Each Pot
• 16-bytes of EEPROM memory
• SPI serial interface
• R
• Wiper resistance = 150Ω typical
• Standby current < 1µA (total package)
• Operating current < 400µA max.
• V
• Package–24 Ld SOIC
• 100 year data retention
• Pb-free plus anneal available (RoHS compliant)
BLOCK DIAGRAM
HOLD
SCK
WP
SO
CS
V
V
CC
A0
A1
Total
SI
CC
SS
= 2.7V to 5V
= 10kΩ
Interface
Circuitry
Control
and
Data
®
8
1
Data Sheet
R0 R1
R2 R3
R0 R1
R2 R3
Register
Register
Counter
Counter
(WCR)
(WCR)
Wiper
Wiper
Pot 0
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Resistor
Array
Pot 1
V
V
DESCRIPTION
The X9401 integrates 4 digitally controlled potentiome-
ters (XDCP) on a monolithic CMOS integrated
microcircuit.
The digitally controlled potentiometer is implemented
using 64 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 4 nonvola-
tile Data Registers (DR0:DR3) that can be directly writ-
ten to and read by the user. The contents of the WCR
controls the position of the wiper on the resistor array
through the switches. Power-up recalls the contents of
DR0 to the WCR.
The XDCP can be used as a three-terminal potentiom-
eter or as a two-terminal variable resistor in a wide
variety of applications including control, parameter
adjustments, and signal processing.
V
V
W0
W1
V
V
H1
L0
L1
H0
/R
/R
/R
/R
/R
October 12, 2006
/R
W1
W0
H1
L0
L1
H0
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Low Noise/Low Power/SPI Bus
R0 R1
R2 R3
R0 R1
R2 R3
Register
Counter
Register
(WCR)
Counter
Wiper
(WCR)
Wiper
Resistor
Resistor
Array
Pot 2
Array
Pot 3
X9401
FN8190.3
V
V
V
V
V
V
L2
H2
L3
H3
W2
W3
/R
/R
/R
/R
/R
/R
L2
L3
H2
H3
W2
W3

Related parts for x9401ys24iz-2.7

x9401ys24iz-2.7 Summary of contents

Page 1

Data Sheet Quad, 64 Tap, Digitally Controlled Potentiometer (XDCP™) FEATURES • Quad–4 separate pots, 64 taps/pot • Nonvolatile storage of wiper position • Four Nonvolatile Data Registers for Each Pot • 16-bytes of EEPROM memory • SPI serial interface ...

Page 2

Ordering Information PART PART NUMBER MARKING X9401WS24IZ (Note) X9401WS ZI X9401WS24I-2.7* X9401WS G X9401WS24IZ-2.7* (Note) X9401WS ZG *Add "T1" suffix for tape and reel. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and ...

Page 3

PIN CONFIGURATION SOIC X9401 ...

Page 4

Data Register Detail (MSB Write in Process The contents of the Data Registers are saved to non- volatile memory when the CS pin goes from LOW to HIGH after a complete write ...

Page 5

Wiper Counter Register. These instructions are: – Read Wiper Counter Register— read the current wiper position of the selected pot, – Write Wiper Counter Register—change current wiper position ...

Page 6

Figure 3. Two-Byte Command Sequence CS SCK Figure 4. Three-Byte Command Sequence (Write) CS SCL Figure 5. Three-Byte Command Sequence (Read) CS SCL ...

Page 7

Figure 7. Increment/Decrement Timing Limits SCK INC/DEC CMD Issued Table 1. Instruction Set Instruction I 3 Read Wiper Counter Register 1 Write Wiper Counter Register 1 Read Data Register 1 Write Data Register 1 XFR ...

Page 8

Instruction Format Notes: (1) “A1 ~ A0”: stands for the device addresses sent by the master. (2) WPx refers to wiper position data in the Counter Register (3) “I”: stands for the increment operation, SI held HIGH during active SCK ...

Page 9

Transfer Wiper Counter Register (WCR) to Data Register (DR) device type device CS identifier addresses Falling A A Edge Increment/Decrement Wiper Counter Register (WCR) device type device CS identifier addresses Falling A ...

Page 10

ABSOLUTE MAXIMUM RATINGS Temperature under bias .................... -65°C to +135°C Storage temperature ......................... -65°C to +150°C Voltage on SCK, SCL or any address input with respect to V ......................... -1V to +7V SS ΔV = |(V –V )|...................................................... 5.5V H ...

Page 11

D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter I V supply current (active) CC1 supply current (nonvola- CC2 CC tile write current (standby Input leakage current LI ...

Page 12

AC TIMING Symbol f SSI/SPI clock frequency SCK t SSI/SPI clock cycle rime CYC t SSI/SPI clock high rime WH t SSI/SPI clock low time WL t Lead time LEAD t Lag time LAG t SI, SCK, HOLD and CS ...

Page 13

SYMBOL TABLE WAVEFORM INPUTS OUTPUTS Must be Will be steady steady May change Will change from Low to from Low to High High May change Will change from High to from High to Low Low Don’t Care: Changing: Changes State ...

Page 14

Hold Timing CS SCK HOLD XDCP Timing (for All Load Instructions) CS SCK MSB High Impedance SO XDCP Timing (for Increment/Decrement Instruction) CS SCK ADDR High ...

Page 15

Write Protect and Device Address Pins Timing APPLICATIONS INFORMATION Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider 15 X9401 (Any Instruction WPAH WPASU Two terminal ...

Page 16

Application Circuits NONINVERTING AMPLIFIER – (1 OFFSET VOLTAGE ADJUSTMENT – 100kΩ + TL072 10kΩ 10kΩ 10kΩ +5V ATTENUATOR R ...

Page 17

Application Circuits (continued) INVERTING AMPLIFIER – – X9401 EQUIVALENT L-R CIRCUIT ...

Page 18

Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in the ...

Page 19

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

Related keywords