Os motores de busca de Datasheet de Componentes eletrônicos
Selected language     Portuguese  ▼

Delete All
ON OFF
ALLDATASHEETPT.COM

X  

Preview PDF Download HTML

CAT522 Folha de dados(PDF) 1 Page - Catalyst Semiconductor

Nome de Peças. CAT522
descrição  Configured Digitally Programmable Potentiometer
Download  11 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fbricantes  CATALYST [Catalyst Semiconductor]
Página de início  http://www.catalyst-semiconductor.com
Logo 

CAT522 Folha de dados(HTML) 1 Page - Catalyst Semiconductor

 
Zoom Inzoom in Zoom Outzoom out
 1 / 11 page
background image
1
1
2
3
4
5
6
7
14
13
12
11
8
10
9
VDD
CLK
RDY/BSY
CS
DI
DO
PROG
VREFH1
VREFH2
VOUT1
VOUT2
VREFL2
VREFL1
GND
1
2
3
4
5
6
7
14
13
12
11
8
10
9
VDD
CLK
RDY/BSY
CS
DI
DO
PROG
VREFH1
VREFH2
VOUT1
VOUT2
VREFL2
VREFL1
GND
CAT522
Configured Digitally Programmable Potentiometer (DPP™):
Programmable Voltage Applications
FEATURES
s Two 8-bit DPPs configured as programmable
voltage sources in DAC-like applications
s Independent reference inputs
s Non-volatile NVRAM memory wiper storage
s Output voltage range includes both supply rails
s 2 independently addressable buffered
output wipers
s 1 LSB accuracy, high resolution
s Serial Microwire-like interface
s Single supply operation: 2.7V - 5.5V
s Setting read-back without effecting outputs
APPLICATIONS
s Automated product calibration.
s Remote control adjustment of equipment
s Offset, gain and zero adjustments in self-
calibrating and adaptive control systems.
s Tamper-proof calibrations.
s DAC (with memory) substitute.
DESCRIPTION
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
FUNCTIONAL DIAGRAM
PIN CONFIGURATION
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.
DIP Package (P, L)
SOIC Package (J, W)
CAT522
© 2004 by Catalyst Semiconductor, Inc.
Doc. No. 2004, Rev. E
Characteristics subject to change without notice
CAT522
CAT522
ALO
GEN FR
TM
LEAD FREE
RDY/BSY
PROG
PROGRAM
CONTROL
DI
CS
CLK
SERIAL
CONTROL
SERIAL
DATA
OUTPUT
REGISTER
GND
V
DD
14
7
5
2
4
V
13
12
OUT1
OUT2
V
6
DO
8
9
31
+
+
24k
24K
WIPER
CONTROL
REGISTERS
AND
NVRAM
11
10
VREFH1 VREFH2
V
REFL1
V
REFL2


Html Pages

1  2  3  4  5  6  7  8  9  10  11 


Datasheet Download




Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é util para você?  [ DONATE ]  

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Política de Privacidade   |   Troca de Link   |   Lista de Fabricantes
All Rights Reserved© Alldatasheetpt.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn