CAT5132ZI-00T3 CATALYST [Catalyst Semiconductor], CAT5132ZI-00T3 Datasheet

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CAT5132ZI-00T3

Manufacturer Part Number
CAT5132ZI-00T3
Description
16 Volt Digitally Programmable Potentiometer
Manufacturer
CATALYST [Catalyst Semiconductor]
Datasheet
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
16 Volt Digitally Programmable Potentiometer (DPP™)
with 128 Taps and 2-wire Interface
FEATURES
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APPLICATIONS
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BLOCK DIAGRAM
For Ordering Information details, see page 13.
Single linear DPP with 128 taps
End-to-end resistance of 10kΩ Ω Ω Ω Ω , 50kΩ Ω Ω Ω Ω or 100kΩ Ω Ω Ω Ω
2-wire (I
Fast Up/Down wiper control mode
Non-volatile wiper setting storage
Automatic wiper setting recall at power-up
Digital Supply range (V
Analog Supply range (V+): +8V to +16V
Low Standby Current: 15
100 Year wiper setting memory
Industrial Temperature range: -40
RoHS-compliant 10-pin MSOP package
LCD screen adjustment
Volume control
Mechanical potentiometer replacement
Gain adjustment
Line impedance matching
VCOM setting adjustments
2
C-like) interface
SDA
SCL
A0
A1
NONVOLATILE
REGISTER
MEMORY
CC
7-BIT
(DR)
CONTROL LOGIC AND
µ
ADDRESS DECODE
): 2.7V to 5.5V
A
V CC
o
C to +85
7-BIT WIPER
CONTROL
REGISTER
(WCR)
o
C
1
DESCRIPTION
The CAT5132 is a high voltage Digitally Programmable
Potentiometer (DPP) with non-volatile wiper setting
memory, operating like a mechanical potentiometer.
The tap points between the 127 equal resistive elements
are connected to the wiper output via CMOS switches.
The switches are controlled by a 7-bit Wiper Control
Register (WCR). The wiper setting can be stored in a
7-bit non-volatile Data Register (DR). The WCR is
accessed via the 2-wire serial bus.
Upon power-up, the WCR is set to mid-scale (1000000).
After the power supply is stable, the contents of the DR
are transferred to the WCR and the wiper is returned to
the memorized setting.
The CAT5132 has two voltage supplies: V
supply and V+, the analog supply. V+ can be much
higher than V
The CAT5132 can be used as a potentiometer or as a
two-terminal variable resistor.
DECODE CONTROL
128 TAP POSITION
V+
CC
, allowing for 16V analog operations.
127
0
Doc. No. 25092, Rev. 04
R H
R L
R W
CAT5132
CC
, the digital

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CAT5132ZI-00T3 Summary of contents

Page 1

Volt Digitally Programmable Potentiometer (DPP™) with 128 Taps and 2-wire Interface FEATURES I Single linear DPP with 128 taps End-to-end resistance of 10kΩ Ω Ω Ω Ω , 50kΩ Ω Ω Ω Ω or 100kΩ Ω Ω Ω Ω ...

Page 2

CAT5132 PIN CONFIGURATION SCL SDA GND MSOP 10-Pin Package Doc. No. 25092, Rev. 04 PIN DESCRIPTION ...

Page 3

ABSOLUTE MAXIMUM RATINGS Temperature Under Bias....................-55˚C to +125˚C Storage Temperature ........................ -65˚C to +150˚C Voltage on any SDA, SCL, A0 & A1 pins with respect (1) to Ground ................................. -0. Voltage & R pins ...

Page 4

CAT5132 D.C. ELECTRICAL CHARACTERISTICS (Over recommended operating conditions unless otherwise stated ...

Page 5

POWER UP TIMING ...

Page 6

CAT5132 TYPICAL PERFORMANCE CHARACTERISTICS (CONT) Absolute Linearity Error per Tap Position 1.000 Tamb = 25 C Vcc=2.7V; V+=8v 0.800 Rtotal = 10K Vcc=5.5V; V+=16V 0.600 0.400 0.200 0.000 -0.200 -0.400 -0.600 -0.800 -1.000 Tap ...

Page 7

SERIAL BUS PROTOCOL The following defines the features of the 2-wire bus protocol: (1) Data transfer may be initiated only when the bus is not busy. (2) During a data transfer, the data line must remain stable whenever the clock ...

Page 8

CAT5132 DEVICE DESCRIPTION Access Control Register The volatile register WCR and the non-volatile register DR are accessed only by addressing the volatile Access 2 Register AR first, using the 3 byte I C protocol for all read and write operations ...

Page 9

Wiper Control Register (WCR) Description The CAT5132 contains a 7-bit Wiper Control Register which is decoded to select one of the 128 switches along its resistor array. The WCR is a volatile register and is written with the contents of ...

Page 10

CAT5132 Data Register (DR) The Data Register (DR nonvolatile register and its contents are automatically written to the Wiper Control Register (WCR) on power-up. It can be read at any time without effecting the value of the WCR. ...

Page 11

POTENTIOMETER OPERATION Power-On The CAT5132 is a 128-position, digital controlled potentiometer. When applying power to the CAT5132, V must be suplied prior to or simultaneously with V the sametime, the signals should not ...

Page 12

CAT5132 PACKAGE OUTLINES 10-LEAD MSOP SYMBOL MIN NOM A A1 0.00 0.05 A2 0.75 0.85 b 0.17 D 2.90 3.00 E 4.75 4.90 E1 2.90 3.00 e 0.50 BSC L 0.40 0° For current Tape and Reel ...

Page 13

... All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) The device used in the above example is a CAT5132ZI-10-GT3 (MSOP, Industrial Temperature range, 10k ohms, NiPdAu, Tape & Reel). (4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office. ...

Page 14

REVISION HISTORY Date Rev. Reason 09/12/2005 00 Initial Issue 01/18/2006 01 Update Ordering Information 03/24/2006 02 Update Features Update Description Update Pin Drescription Update Absolute Maximum Ratings Update Recommended Operating Condictions Update Ordering Information Update Absolute Maximum Ratings Update Reliability ...

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