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Intersil Electronic Components Datasheet

X95820 Datasheet

Dual Digital Controlled Potentiometers

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®
Data Sheet
X95820
Dual Digital Controlled Potentiometers (XDCP™)
July 18, 2006
FN8212.2
Low Noise/Low Power/I2C® Bus/256 Taps
The X95820 integrates two digitally controlled
potentiometers (XDCP) on a monolithic CMOS integrated
circuit.
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
I2C bus interface. Each potentiometer has an associated
volatile Wiper Register (WR) and a non-volatile Initial Value
Register (IVR), that can be directly written to and read by the
user. The contents of the WR controls the position of the
wiper. At power up the device recalls the contents of the two
DCP’s IVR to the corresponding WRs.
The DCPs can be used as three-terminal potentiometers or
as two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Ordering Information
PART NUMBER
PART RESISTANCE
MARKING
OPTION PACKAGE
www.DataSheet4U.comX95820WV14I-2.7* X95820WV G
X95820WV14IZ-2.7* X95820WV Z G
(Note)
10kΩ
10kΩ
14 Ld TSSOP
14 Ld TSSOP
(Pb-free)
X95820UV14I-2.7* X95820UV G
50kΩ 14 Ld TSSOP
X95820UV14IZ-2.7* X95820UV Z G
(Note)
50kΩ
14 Ld TSSOP
(Pb-free)
*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 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
Features
• Two potentiometers in one package
• 256 resistor taps-0.4% resolution
• I2C serial interface
- Three address pins, up to eight devices/bus
• Wiper resistance: 70Ω typical @ 3.3V
• Non-volatile storage of wiper position
• Standby current < 5µA max
• Power supply: 2.7V to 5.5V
• 50kΩ, 10kΩ total resistance
• High reliability
- Endurance: 150,000 data changes per bit per register
- Register data retention: 50 years @ T 75°C
• 14 Ld TSSOP
• Pb-free plus anneal available (RoHS compliant)
Pinouts
VCC
WP
RH0
RL0
RW0
A2
SCL
X95820
(14 LD TSSOP)
TOP VIEW
1 14
2 13
3 12
4 11
5 10
69
78
A1
A0
RH1
RL1
RW1
GND
SDA
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.


Intersil Electronic Components Datasheet

X95820 Datasheet

Dual Digital Controlled Potentiometers

No Preview Available !

Block Diagram
X95820
VCC
SDA
SCL
I2C
INTERFACE
POWER-UP,
INTERFACE,
CONTROL AND
STATUS LOGIC
WR1
A2
A1
A0
NON-VOLATILE
WR0
REGISTERS
WP GND
RH1
RW1
RL1
RH0
RW0
RL0
PiN Descriptions
PIN SYMBOL
1 VCC
2 WP
3 RH0
4 RL0
5 RW0
6 A2
7 SCL
8 SDA
9 GND
10 RW1
11 RL1
12 RH1
13 A0
14 A1
DESCRIPTION
Power supply pin
Hardware write protection pin. Active low. Prevents any “Write” operation of the I2C interface.
“High” terminal of DCP0
“Low” terminal of DCP0
“Wiper” terminal of DCP0
Device address for the I2C interface
I2C interface clock
Serial data I/O for the I2C interface
Ground
“Wiper” terminal of DCP1
“Low” terminal of DCP1
“High” terminal of DCP1
Device address for the I2C interface
Device address for the I2C interface
2 FN8212.2
July 18, 2006


Part Number X95820
Description Dual Digital Controlled Potentiometers
Maker Intersil Corporation
Total Page 12 Pages
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