CAT522W-TE13 ON Semiconductor, CAT522W-TE13 Datasheet

CAT522W-TE13

Manufacturer Part Number

CAT522W-TE13

Description

Manufacturer

ON Semiconductor

Datasheet

1.CAT522W-TE13.pdf (11 pages)

Specifications of CAT522W-TE13

Number Of Elements

# Of Taps

256

Power Supply Requirement

Single

Single Supply Voltage (typ)

3.3/5V

Dual Supply Voltage (typ)

Not RequiredV

Single Supply Voltage (min)

2.7V

Single Supply Voltage (max)

5.5V

Dual Supply Voltage (min)

Not RequiredV

Dual Supply Voltage (max)

Not RequiredV

Operating Temp Range

0C to 70C

Operating Temperature Classification

Commercial

Mounting

Surface Mount

Pin Count

Lead Free Status / Rohs Status

Compliant

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Characteristics subject to change without notice

The CAT522 is a dual, 8-bit digitally-programmable

potentiometer (DPP™) configured for programmable

voltage and DAC-like applications. Intended for final

calibration of products such as camcorders, fax

machines and cellular telephones on automated high

volume production lines, it is also well suited for

self-calibrating systems and for applications where

equipment which requires periodic adjustment is either

difficult to access or in a hazardous environment.

The CAT522 offers two independently programmable

DPPs each having its own reference inputs and each

capable of rail to rail output swing. The wipers are

buffered by rail to rail opamps. Wiper settings, stored in

non-volatile NVRAM memory, are not lost when the

device is powered down and are automatically

reinstated when power is returned. Each wiper can be

dithered to test new output values without effecting the

stored settings and stored settings can be read back

without disturbing the DPP's output.

The CAT522 is controlled with a simple 3-wire, microwire-

like serial interface. A Chip Select pin allows several

devices to share a common serial interface.

Communication back to the host controller is via a single

serial data line thanks to the CAT522 Tri-Stated Data

Output pin. A RDY/BSY output working in concert with

an internal low voltage detector signals proper operation

of the non-volatile NVRAM memory Erase/Write cycle.

The CAT522 is available in the 0 C to 70 C commercial

and -40 C to 85 C industrial operating temperature

ranges. Both 14-pin plastic DIP and surface mount

packages are available.

CAT522

Doc. No. 2004, Rev. E

Related parts for CAT522W-TE13

CAT522W-TE13 Summary of contents

Page 1

The CAT522 is a dual, 8-bit digitally-programmable potentiometer (DPP™) configured for programmable voltage and DAC-like applications. Intended for final calibration of products such as camcorders, fax machines and cellular telephones on automated high volume production lines also well ...

Page 2

CAT522 Supply Voltage GND ...................................... -0.5V to +7V DD Inputs CLK to GND ............................ -0. GND .............................. -0. GND ............................... -0. RDY/BSY to GND ................... -0. ...

Page 3

V = +2.7V to +5.5V REF R Potentiometer Resistance POT Match POT POT Pot Resistance Tolerance Voltage on V pin REFH Voltage on V pin REFL Resolution INL Integral Linearity Error DNL ...

Page 4

CAT522 Doc. No. 2004, Rev ...

Page 5

V Power supply positive DD 2 CLK Clock input pin 3 RDY/BSY Ready/Busy output 4 CS Chip select 5 DI Serial data input pin 6 DO Serial data output pin 7 PROG EEPROM Programming Enable Input 8 GND Power ...

Page 6

CAT522 As data transfers are edge triggered clean clock transitions are necessary to avoid falsely clocking data into the control registers. Standard CMOS and TTL logic families work well in this regard and it is recommended that any mechanical switches ...

Page 7

DPP’s output is noticed. Had the value held in the control register been different from that stored in non- volatile memory then a change would occur at the ...

Page 8

CAT522 (Cont ————— C 256 1 A +5V V REF Fine adjust gives REFH when V OFFSET 127R C FINE ADJUST DPP OFFSET COARSE ADJUST DPP GND V REFL I > 2 ...

Page 9

REFH 4.7 A DPP CONTROL & DATA DPP GND V REFL 51K + REFH DPP CONTROL & DATA DPP GND V REFL Current Source with 4 Decades of Resolution LM385-2.5 I ...

Page 10

CAT522 CAT 522 Notes: (1) The device used in the above example is a CAT522JI-TE13 (SOIC, Industrial Temperature, Tape & Reel) Doc. No. 2004, Rev PDIP J: SOIC L: PDIP (Lead free, Halogen free) W: SOIC (Lead ...

Page 11

D Updated Potentiometer Characteristics 7/12/2004 E Updated Functional Diagram Updated Potentiometer Characteristics Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: DPP ™ ™ Catalyst Semiconductor has been issued U.S. ...

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