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X9428WS16IZ 参数 Datasheet PDF下载

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型号: X9428WS16IZ
PDF下载: 下载PDF文件 查看货源
内容描述: 单数字控制电位器 [Single Digitally Controlled Potentiometer]
分类和应用: 电位器
文件页数/大小: 21 页 / 315 K
品牌: INTERSIL [ INTERSIL CORPORATION ]
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S
D E S I GN
OR N E W
F
EN DED
EM ENT
R E C OM M N D E D R E P L A C
N OT
E
e n te r a t
Data Sheet
RECOMM nical Support C m/tsc
NO
ur Tech
tersil.co
ontact o RSIL or www.in
c
TE
1-888-IN
®
X9428
Low Noise/Low Power/2-Wire Bus
April 26, 2006
FN8197.1
Single Digitally Controlled Potentiometer
(XDCP™)
FEATURES
• Solid state potentiometer
• 2-wire serial interface
• Register oriented format
—Direct Read/Write/Transfer wiper position
—Store as many as four positions per
potentiometer
• Power supplies
—V
CC
= 2.7V to 5.5V
—V+ = 2.7V to 5.5V
—V– = -2.7V to -5.5V
• Low power CMOS
—Standby current < 1µA
—Ideal for battery operated applications
• High reliability
—Endurance–100,000 Data changes per bit per
register
—Register data retention–100 years
• 4-bytes of nonvolatile memory
• 10kΩ resistor array
• Resolution: 64 taps each potentiometer
• 16 Ld SOIC, 14 Ld TSSOP packages
• Pb-free plus anneal available (RoHS compliant)
BLOCK DIAGRAM
V
CC
V
SS
V+
V–
SCL
SDA
A0
A2
A3
WP
DESCRIPTION
The X9428 integrates a digitally controlled
potentiometers (XDCP) on a monolithic CMOS
integrated microcircuit.
The digitally 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 2-wire
bus interface. Each potentiometer has associated with
it a volatile Wiper Counter Register (WCR) and 4
nonvolatile Data Registers (DR0:DR3) 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 through the switches. Power-up recalls
the contents of 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.
R0 R1
Interface
and
Control
Circuitry
Data
8
R2 R3
Wiper
Counter
Register
(WCR)
V
H
/R
H
V
L
/R
L
V
W
/R
W
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.