CAT5129 CATALYST [Catalyst Semiconductor], CAT5129 Datasheet

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CAT5129

Manufacturer Part Number
CAT5129
Description
32-Tap Digitally Programmable Potentiometer (DPP TM)
Manufacturer
CATALYST [Catalyst Semiconductor]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CAT5129TDI-10GT3
Manufacturer:
Microchip
Quantity:
2 986
32-Tap Digitally Programmable Potentiometer (DPP™)
FEATURES
APPLICATION
FUNCTIONAL DIAGRAM
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
For Ordering Information details, see page 11.
32-position linear taper potentiometer
Non-volatile EEPROM wiper storage
Low standby current
Single supply operation: 2.5V – 5.5V
Increment Up/Down serial interface
Resistance values: 10kΩ, 50kΩ and 100kΩ
CAT5127 in tiny 8 lead 2mmx2.5mm TDFN and
MSOP packages
CAT5129 in the 6 lead TSOT23 package
Automated product calibration
Remote control adjustments
Offset, gain and zero control
Tamper-proof calibrations
Contrast, brightness and volume controls
Motor controls and feedback systems
Programmable analog functions
(INC)
(U/D)
(CS)
Memory
Control
GND
POR
and
V
CAT5127
CC
R
R
H
L
1
DESCRIPTION
The CAT5127/CAT5129 are single digitally program–
mable potentiometers (DPP™) designed as a electro–
nic replacement for mechanical potentiometers and
trim pots. Ideal for automated adjustments on high
volume production lines, they are also well suited for
applications where equipment requiring periodic
adjustment is either difficult to access or located in a
hazardous or remote environment.
The CAT5127 contains a 32-tap series resistor array
connected between two terminals R
CAT5129 contains a 32-tap series resistor array
connected between two terminals R
up/down counter and decoder that are controlled by
three input pins, determines which tap is connected to
the wiper. The wiper setting, stored in nonvolatile me–
mory, is not lost when the device is powered down
and is automatically reinstated when power is
returned. The wiper can be adjusted to test new
system values without effecting the stored setting.
Wiper-control
accomplished with three input control pins, CS
and INC
direction which is determined by the logic state of the
U/D ¯ input. The CS
and also store the wiper position prior to power down.
The devices are used as two-terminal variable
resistors. DPPs bring variability and programmability
to a wide variety of applications including control,
parameter adjustments, and signal processing.
¯¯¯ . The INC
(INC)
(U/D)
(CS)
¯¯¯ input increments the wiper in the
¯¯ input is used to select the device
of
CAT5127, CAT5129
Memory
Control
POR
GND
and
V
the
CAT5129
CC
CAT5127/CAT5129
H
H
and GND. An
and R
R
Doc. No. 2127 Rev. A
H
¯¯ , U/D ¯ ,
L
. The
is

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CAT5129 Summary of contents

Page 1

... Single supply operation: 2.5V – 5.5V Increment Up/Down serial interface Resistance values: 10kΩ, 50kΩ and 100kΩ CAT5127 in tiny 8 lead 2mmx2.5mm TDFN and MSOP packages CAT5129 in the 6 lead TSOT23 package APPLICATION Automated product calibration Remote control adjustments Offset, gain and zero control ...

Page 2

... CAT5127, CAT5129 PIN CONFIGURATION MSOP/TDFN CAT5127 ¯¯¯ INC CC U/D ¯ ¯¯ GND TSOT23-6 CAT5129 ¯¯ GND U/D ¯ ¯¯¯ INC DEVICE DESCRIPTION ¯¯¯ : Increment Control Input INC ¯ ...

Page 3

... R There are 31 resistor elements connected in series between the R and R terminals The CAT5129 operates like a digitally controlled variable resistor with R equivalent to the high H terminal. There are 32 available tap positions including the resistor end points, R are 31 resistor elements connected in series between and GND terminals ...

Page 4

... CAT5127, CAT5129 ABSOLUTE MAXIMUM RATINGS Parameters Ratings Supply Voltage V to GND -0.5 to +7V CC Inputs ¯¯ to GND -0 +0 ¯¯¯ to GND INC -0 +0.5 CC U/D ¯ to GND -0 +0 GND -0 +0 GND -0 +0 GND -0 +0.5 CC RELIABILITY CHARACTERISTICS Symbol Parameter Test Method ...

Page 5

... Conditions -10 Device -50 Device -00 Device I ≤ 2µ ≤ 2µ 5V 1mA 2.5V 1mA CC W 100kHz / 1kHz Passive Attenuator, 10kΩ 5 CAT5127, CAT5129 Typ Max Units 5.5 V 0.4 10 µA 300 1000 µA 150 500 µA 0.35 1 µA Typ Max Units 10 µA -10 µA ...

Page 6

... CAT5127, CAT5129 AC TEST CONDITIONS V Range 2.5V ≤ Input Pulse Levels 0.2V Input Rise and Fall Times 10ns Input Reference Levels 0.5V AC OPERATING CHARACTERISTICS V = +2.5V to +5.5V Symbol Parameter t ¯¯ to INC ¯¯¯ Setup U/D ¯ to INC ¯¯¯ Setup DI U/D ¯ ...

Page 7

... Programmable Sq. Wave Oscillator (555) + (REG) 0.1µ 6.8µF 11kΩ 330 820 – 10k 6 Programmable convertor 7 CAT5127, CAT5129 + POT } 4 8 (1-p)R POT 555 CAT5127 4 pR (1-p)R ...

Page 8

... CAT5127, CAT5129 PACKAGE OUTLINES 8-LEAD MSOP SYMBOL MIN NOM MAX A A1 0.05 0.10 0.15 A2 0.75 0.85 0.95 b 0.28 0.33 0. 2.90 3.00 3.10 E 4.80 4.90 5.00 E1 2.90 3.00 3.10 e 0.65 BSC L 0.35 0.45 0. Ө 0º Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC Specification MS-187. (3) Stand off height/coplanarity are considered as special characteristics. Doc. No. 2127 Rev. A ...

Page 9

... TYP L 0.20 0.30 0.40 Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC specification MO-229. © 2006 Catalyst Semiconductor, Inc. Characteristics subject to change without notice A1 For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. 9 CAT5127, CAT5129 A3 Doc. No. 2127 Rev. A ...

Page 10

... CAT5127, CAT5129 6-LEAD TSOT- SYMBOL MIN NOM A — — A1 0.01 0.05 A2 0.80 0.87 b 0.30 — c 0.12 0.15 D 2.90 BSC E 2.70 2.80 1.60 BSC E1 e 0.95 BSC e1 1.90 BSC L 0.30 0.40 L1 0.60 REF L2 0.25 BSC θ 0° Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC specification MO-193. Doc. No. 2127 Rev. A ...

Page 11

... PEym (5) (6) 100 PFym (6) 10 PAym (5) (6) 50 PBym (5) (6) 100 PCym 11 CAT5127, CAT5129 – Tape & Reel T: Tape & Reel 3: 3000/Reel Lead Finish Blank: Matte-Tin G: NiPdAu Pin/Package Part Per Reel MSOP-8 3000 MSOP-8 3000 MSOP-8 3000 MSOP-8 3000 MSOP-8 ...

Page 12

REVISION HISTORY Date Rev. Reason 12/18/06 A Initial Issue Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: Beyond Memory™, DPP™, EZDim™, MiniPot™, and Quad-Mode™ Catalyst Semiconductor has been issued U.S. and foreign ...

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