X9111TB15 XICOR [Xicor Inc.], X9111TB15 Datasheet

no-image

X9111TB15

Manufacturer Part Number
X9111TB15
Description
Single Digitally-Controlled Potentiometer
Manufacturer
XICOR [Xicor Inc.]
Datasheet
Preliminary Information
FUNCTIONAL DIAGRAM
Single Supply / Low Power / 1024-tap / SPI bus
FEATURES
• 1024 Resistor Taps – 10-Bit Resolution
• SPI Serial Interface for write, read, and transfer
• Wiper Resistance, 40 Ω Typical @ 5V
• Four Non-Volatile Data Registers
• Non-Volatile Storage of Multiple Wiper Positions
• Power On Recall. Loads Saved Wiper Position on
• Standby Current < 3 µ A Max
• V
• 100K Ω End to End Resistance
• 100 yr. Data Retention
• Endurance: 100, 000 Data Changes Per Bit Per
• 14-Lead TSSOP, 15-Lead CSP (Chip Scale
• Low Power CMOS
• Single Supply version of the X9110
REV 1.1.15 5/9/03
operations of the potentiometer
Power Up.
Register
Packaging)
AN99 • AN115 • AN124 •AN133 • AN134 • AN135
CC
: 2.7V to 5.5V Operation
A
PPLICATION
Interface
SPI
Bus
A V A I L A B L E
N
OTES AND
Single Digitally-Controlled (XDCP
Address
Status
Data
D
EVELOPMENT
Interface &
S
YSTEM
Control
Bus
V
V
SS
CC
Transfer
Control
Write
Read
www.xicor.com
X9111
DESCRIPTION
The X9111 integrates a single digitally controlled
potentiometer
integrated circuit.
The digital controlled potentiometer is implemented
using 1023 resistive elements in a series array.
Between each element are tap points connected to the
wiper terminal through switches. The position of the
wiper on the array is controlled by the user through the
SPI bus interface. The potentiometer has associated
with it a volatile Wiper Counter Register (WCR) and
four non-volatile Data Registers that can be directly
written to and read by the user. The contents of the
WCR controls the position of the wiper on the resistor
array though the switches. Powerup recalls the
contents of the default data register (DR0) to the WCR.
The XDCP can be used as a three-terminal
potentiometer or as a two terminal variable resistor in
a wide variety of applications including control,
parameter adjustments, and signal processing.
Power On Recall
Register (WCR)
Data Registers
Wiper Counter
NC
(DR0-DR3)
) Potentiometer
(XDCP)
Characteristics subject to change without notice.
R
W
Wiper
on
R
R
H
L
POT
a
100KΩ
1024-taps
monolithic
CMOS
1 of 21

Related parts for X9111TB15

X9111TB15 Summary of contents

Page 1

PPLICATION OTES AND EVELOPMENT AN99 • AN115 • AN124 •AN133 • AN134 • AN135 Single Supply / Low Power / 1024-tap / SPI bus Preliminary Information Single Digitally-Controlled ...

Page 2

X9111 – Preliminary Information DETAILED FUNCTIONAL DIAGRAM V CC HOLD CS SCK Interface SO and SI Control Circuitry CIRCUIT LEVEL APPLICATIONS • Vary the gain of a voltage amplifier • Provide programmable dc reference voltages ...

Page 3

X9111 – Preliminary Information PIN CONFIGURATION TSSOP X9111 SCK PIN ASSIGNMENTS Pin Pin (TSSOP) (CSP B2 ...

Page 4

X9111 – Preliminary Information PIN DESCRIPTIONS Bus Interface Pins S O (SO) ERIAL UTPUT serial data output pin. During a read cycle, data is shifted out on this pin. Data is clocked out by the falling edge ...

Page 5

X9111 – Preliminary Information Figure 1. Detailed Potentiometer Block Diagram Serial Data Path From Interface Circuitry Register 0 (DR0) Register 2 (DR2) If WCR = 000[HEX] then WCR = 3FF[HEX] then ...

Page 6

X9111 – Preliminary Information Table 1. Wiper Latch, WL (10-bit), WCR9–WCR0: Used to store the current wiper position (Volatile, V) WCR9 WCR8 WCR7 (MSB) Table 2. Data Register, DR (10-bit), Bit 9–Bit 0: Used to store wiper ...

Page 7

X9111 – Preliminary Information Five of the seven instructions are four bytes in length. These instructions are: – Read Wiper Counter Register – read the current wiper position of the selected pot, – Write Wiper Counter Register – change current ...

Page 8

X9111 – Preliminary Information Figure 3. Four-Byte Instruction Sequence (Write or Read for WCR or Data Registers) CS SCK R/W I2 ID3 ID2 ID1 ID0 0 Internal Device ID Address Figure ...

Page 9

X9111 – Preliminary Information Table 6. Instruction Set Instruction R/W Read Wiper Counter 1 Register Write Wiper Counter 0 Register Read Data Register 1 Write Data Register 0 XFR Data Register to 1 Wiper Counter Register XFR Wiper Counter 0 ...

Page 10

X9111 – Preliminary Information Write Data Register (DR) Device Type Device Instruction Identifier Addresses CS Falling Edge Transfer Data ...

Page 11

X9111 – Preliminary Information ABSOLUTE MAXIMUM RATINGS Temperature under bias.................... –65°C to +135°C Storage temperature......................... –65°C to +150°C Voltage on SCK any address input with respect to V ................................. –1V to +7V SS ∆ (VH–VL) | ......................................................5V Lead ...

Page 12

X9111 – Preliminary Information D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter I V supply current CC1 CC (active supply current CC2 CC (nonvolatile write current (standby Input ...

Page 13

X9111 – Preliminary Information A.C. TEST CONDITIONS I nput pulse levels V Input rise and fall times Input and output timing level EQUIVALENT A.C. LOAD CIRCUIT 5V 1462Ω SO pin 2714Ω 100pF AC TIMING Symbol f SSI/SPI clock frequency SCK ...

Page 14

X9111 – Preliminary Information HIGH-VOLTAGE WRITE CYCLE TIMING Symbol t High-voltage write cycle time (store instructions) WR XDCP TIMING Symbol t Wiper response time after the third (last) power supply is stable WRPO t Wiper response time after instruction issued ...

Page 15

X9111 – Preliminary Information TIMING DIAGRAMS Input Timing CS t LEAD SCK MSB SI High Impedance SO Output Timing CS SCK t V MSB SO ADDR SI Hold Timing CS SCK HOLD ...

Page 16

X9111 – Preliminary Information XDCP Timing (for All Load Instructions) CS SCK MSB High Impedance SO Write Protect and Device Address Pins Timing REV 1.1.15 5/9/03 ... t WRL ... (Any Instruction) ...

Page 17

X9111 – Preliminary Information APPLICATIONS INFORMATION Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider Application Circuits Noninverting Amplifier – (1 Offset Voltage ...

Page 18

X9111 – Preliminary Information Application Circuits (Continued) Attenuator – -1/2 ≤ G ≤ +1/2 Inverting Amplifier ...

Page 19

X9111 – Preliminary Information 15-Bump Chip Scale Package (CSP B15) Package Outline Drawing Top View (Sample Marking) Package Dimensions Symbol Package Width a Package Length b Package Height c Body Thickness d Ball Height e Ball Diameter f Ball Pitch ...

Page 20

X9111 – Preliminary Information PACKAGING INFORMATION 0° - 8° See Detail “A” NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) REV 1.1.15 5/9/03 14-Lead Plastic, TSSOP, Package Code V14 .025 (.65) BSC .169 (4.3) .177 (4.5) .193 (4.9) .200 ...

Page 21

X9111 – Preliminary Information ORDERING INFORMATION X9111 Device LIMITED WARRANTY Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty, express, statutory, implied, or ...

Related keywords