X9271UV14 Intersil, X9271UV14 Datasheet - Page 3

• Manufacturer Part Number: X9271UV14
• Description: IC DIGITAL POT 50K 256TP 14TSSOP
• Manufacturer: Intersil
• Series: XDCP™r

Specifications of X9271UV14

• Taps: 256
• Resistance (ohms): 50K
• Number Of Circuits: 1
• Temperature Coefficient: 300 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Resistance In Ohms: 50K
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DETAILED FUNCTIONAL DIAGRAM
CIRCUIT LEVEL APPLICATIONS
• Vary the gain of a voltage amplifier
• Provide programmable dc reference voltages for
• Control the volume in audio circuits
• Trim out the offset voltage error in a voltage amplifier
• Set the output voltage of a voltage regulator
• Trim the resistance in Wheatstone bridge circuits
• Control the gain, characteristic frequency and
• Set the scale factor and zero point in sensor signal
• Vary the frequency and duty cycle of timer ICs
• Vary the dc biasing of a pin diode attenuator in RF
• Provide a control variable (I, V, or R) in feedback
comparators and detectors
circuit
Q-factor in filter circuits
conditioning circuits
circuits
circuits
HOLD
SCK
WP
SO
CS
A0
A1
SI
3
INTERFACE
CIRCUITRY
CONTROL
AND
V
V
CC
SS
DATA
Control
X9271
Bank 0
R
R
0
2
R
R
1
3
SYSTEM LEVEL APPLICATIONS
• Adjust the contrast in LCD displays
• Control the power level of LED transmitters in
• Set and regulate the DC biasing point in an RF
• Control the gain in audio and home entertainment
• Provide the variable DC bias for tuners in RF
• Set the operating points in temperature control
• Control the operating point for sensors in industrial
• Trim offset and gain errors in artificial intelligent
12 additional nonvolatile registers
3 Banks of 4 registers x 8-bits
REGISTER
Power-on Recall
COUNTER
Bank 1
R
R
communication systems
power amplifier in wireless systems
systems
wireless systems
systems
systems
systems
WIPER
0
2
(WCR)
R
R
1
3
Bank 2
R
R
0
2
R
R
1
3
Bank 3
R
R
50kΩ and 100kΩ
0
2
R
R
256-taps
1
3
R
R
R
L
W
H
November 22, 2005
FN8174.2