CATALYST CAT5132 Service Manual
查询CAT5132GZ-100TE13供应商
15 Volt Digitally Programmable Potentiometer (DPP™)
with 128 Taps and 2-wire Interface
CAT5132
FEATURES
■ Single linear Digitally Programmable Potentiometer
■ 128 Resistor taps
ΩΩ
■ End-to-end resistance of 10k
■ Potentiometer control and memory access via
Ω, 50k
ΩΩ
ΩΩ
Ω & 100k
ΩΩ
ΩΩ
Ω
ΩΩ
2-wire interface (I2C-like)
■ Nonvolatile memory storage for wiper settings
■ Automatic recall of saved wiper setting at power up
■ Special increment/decrement instruction mode for
automatic trimming adjustments
■ V
operation from 2.7 V to 5.5 V
CC
■ V+ (Analog Voltage Supply) operation from +8 V to
+15V
■ Standby current less than 15 µA
■ 100 year nonvolatile memory data retention
■ 10-pin MSOP package
■ Operating temperature of -40˚C to + 85˚C
APPLICATIONS
■ LCD screen adjustment
■ Volume control
■ Mechanical potentiometer replacement
■ Gain adjustment
■ Line impedance matching
■ VCOM setting adjustments
DESCRIPTION
The CAT5132 is a high voltage Digitally Programmable
Potentiometer (DPP) integrated with EEPROM memory
and control logic to operate in a similar manner as a
mechanical potentiometer. The DPP consists of a series
of resistive elements connected between two externally
accessible end points. The tap points between each
resistive element are connected to the wiper output with
CMOS switches. A separate 7-bit control register (WCR)
independently controls the wiper tap switches for the
DPP. Associated with the control register is a 7-bit
nonvolatile memory data register (DR) used for storing
wiper settings. Writing to the wiper control register or the
nonvolatile data register is via a 2-wire serial bus (I
like).
On power-up, WCR is set to mid scale (1000000) and
after the Power Supply becomes stable, the contents of
the data register (DR) are transferred to the wiper control
register (WCR) and the wiper is positioned to that
location.
The CAT5132 comes with 2 voltage supply inputs: VCC,
the digital supply voltage input and V+, an analog supply
voltage input. These inputs allow the V+ to be as much
as 10 volts higher than the VCC and allow the DPP
terminal values to be as much as 15 volts above ground.
The CAT5132 can be used as a potentiometer or as a
two-terminal variable resistor. It is intended for circuit
level adjustments. It is supplied standard in the -40°C to
+85°C industrial operating temperature range and offered
in the 10-pin MSOP package.
2
C-
BLOCK DIAGRAM
SDA
SCL
A0
A1
NONVOLATILE
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
V
CC
CONTROL LOGIC AND
ADDRESS DECODE
7-BIT
MEMORY
REGISTER
(DR)
7-BIT WIPER
CONTROL
REGISTER
(WCR)
V+
128 TAP POSITION
DECODE CONTROL
1
127
R
H
ELEMENTS
127 RESISTIVE
0
R
L
R
W
Doc. No. 25092, Rev. 00
CAT5132
PIN CONFIGURATION
10
SCL
V+
9
R
8
L
R
7
W
R
6
H
CC
A1
A0
1
2
3
4
5
SDA
GND
V
MSOP 10-Pin Package
PIN DESCRIPTION
niP
rebmuN
1ADSnipataDlaireSlanoitceridiB-tuptuO/tupnIataDlaireS
2DNGdnuorG
3V
41ArofsserddaevalstcelesottupnItceleSsserddA
50ArofsserddaevalstcelesottupnItceleSsserddA
6R
7R
8R
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01LCSsihT.suBlaireSeriw-2ehtroftupnikcolCsuBlaireS
emaNnoitpircseD
CC
H
W
L
sihT.2315TACehtfotuodnaotniatadrefsnartotdesu
rehtohtiwd'ROeriwebnacdnaO/IniarD-nepOnasi
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.suberiw-2
.suberiw-2
retemoitnetopehtroflanimreTecnerefeRhgiH
retemoitnetopehtroflanimreTrepiW
retemoitnetopehtroflanimreTecnerefeRwoL
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fotuodnaotnisrefsnartatadllakcolcotdesusikcolc
2315TACeht
ORDERING INFORMATION
Prefix Device # Suffix
CAT
Company ID
5132
Product
Number
Notes:
1. The device used in the above example is a CAT5132R-10TE13 (MSOP, 10k ohms, Tape & Reel).
2. The Industrial Temperature range of -40˚C to +85˚C is standard on the above product.
R
-10
Resistance
-10: 10k ohms
-50: 50k ohms
-100: 100k ohms
Package
R: MSOP
Z: MSOP (Green with Sn Lead Finish)
GZ: MSOP (Green with NiPd Au Lead Finsh)
TE13
Tape & Reel
2500 units/Reel
Doc. No. 25092, Rev. 00
2
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5132
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
to Ground
Voltage on RH, RL & RW Pins with respect
to Ground .................................... -2.0V to “V+” + 1.0V
with respect to Ground ................... -2.0V to 7.0V
V
CC
V+ with respect to Ground ................... -2.0V to 16.0V
Wiper Current (10 sec) ......................................
(1)(2)
.............................. -2.0V to VCC + 2.0V
+6mA
RECOMMENDED OPERATING CONDITIONS
VCC = +2.7V to +5.5V
V+ = 8.0V to +15V
Operating Temperature Range: -40˚C to +85˚C
COMMENT
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions outside of those listed
in the operational sections of this specification is not implied. Exposure to any
absolute maximum rating for extended periods may affect device performance
and reliability.
Lead Soldering temperature (10 sec) .............. +300˚C
POTENTIOMETER CHARACTERISTICS
(Over recommended operating conditions unless otherwise stated.)
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TOP
R
TOP
R
TOP
R
LOT
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k05(ecnatsiseRretemoitnetoP Ω)05kΩ
k01(ecnatsiseRretemoitnetoP Ω)01kΩ
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niMpyTxaM
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I
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V
MRET
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I
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ecnatsiseRrepiW
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R
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R-
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Notes:
1. This parameter is tested initially and after a design or process change that affects the parameter.
2. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a
potentiometer.
3. Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiometer.
4. LSB = (R
5. n = 1, 2, ..., 127
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
HM - RLM
)/127; where RHM and RLM are the highest and lowest measured values on the wiper terminal.
3
Doc No. 25092, Rev. 00
CAT5132
D.C. ELECTRICAL CHARACTERISTICS
(Over recommended operating conditions unless otherwise stated.)
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I
1CC
I
2CC
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)+V(BS
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CC
tnerruCybdnatS+VV
egatloVwoLtupnI1-VCC3.0xV
egatloVhgiHtupnIV
V(egatloVwoLtuptuO
CAPACITANCE
TA = 25˚C, f = 1.0MHz, VCC = 5.0V
lobmySretemaraPsnoitidnoCtseTniMxaMstinU
C
O/I
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01Aµ
7.0xVCC0.1+V
CC
8Fp
6Fp
A.C. CHARACTERISTICS
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Notes:
1. This parameter is tested initially and after a design or process change that affects the parameter.
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tuOKCAdnatuOataDADSotwoLCLS 1sµ
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emiTdloHnoitidnoCtratS6.0sµ
doirePwoLkcolC2.1sµ
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)noitidnoCtratSdetaepeRarof(emiTputeSnoitidnoCtratS6.0sµ
emiTdloHniataD0sn
emiTesiRLCSdnaADS 3.0sµ
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emiTputeSsnoitidnoCpotS6.0sµ
emiTdloHtuOataD001sn
V
CC
V5.5-7.2=
stinUniMxaM
Doc. No. 25092, Rev. 00
4
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
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