X9408WV24IZ-2.7T1 Intersil, X9408WV24IZ-2.7T1 Datasheet

IC POT DGTL QUAD 10K OHM 24TSSOP

X9408WV24IZ-2.7T1

Manufacturer Part Number
X9408WV24IZ-2.7T1
Description
IC POT DGTL QUAD 10K OHM 24TSSOP
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of X9408WV24IZ-2.7T1

Taps
64
Resistance (ohms)
10K
Number Of Circuits
4
Temperature Coefficient
300 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Resistance In Ohms
10K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
X9408WV24IZ-2.7T1TR
Quad Digitally Controlled (XDCP™)
Potentiometers
Description
The X9408 integrates four digitally controlled potentiometers
(XDCP) on a monolithic CMOS integrated circuit.
The digital controlled potentiometer is implemented using 63
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 2-wire bus interface. Each
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. Power-up 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.
Block Diagram
SDA
V
V
SCL
WP
CC
SS
A0
A1
A2
A3
INTERFACE
CIRCUITRY
CONTROL
V+
V-
AND
DATA
®
1
8
Data Sheet
R0
R2
R0
R2
R1
R3
R1
R3
REGISTER
REGISTER
COUNTER
COUNTER
WIPER
WIPER
(WCR)
(WCR)
POT 0
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2009. All Rights Reserved
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
RESISTOR
ARRAY
POT 1
Features
• Four Potentiometers in One Package
• 64 Resistor Taps per Potentiometer
• 2-wire Serial Interface
• Wiper Resistance, 40Ω Typical at 5V
• Four Nonvolatile Data Registers for Each Pot
• Nonvolatile Storage of Wiper Position
• Standby Current < 1µA max (Total Package)
• V
• 10kΩ, 2.5kΩ End to End Resistances
• High reliability
• Endurance–100,000 Data Changes Per Bit Per Register
• Register Data Retention–100 years
• 24 Ld SOIC, 24 Ld TSSOP, 24 Ld PDIP Packages
• Pb-Free (RoHS Compliant)
V
V
V+ = 2.7V to 5.5V
V- = -2.7V to -5.5V
W0
W1
V
V
V
V
CC
H1
L0
L1
H0
January 15, 2009
/R
/R
/R
/R
/R
/R
W0
W1
= 2.7V to 5.5V Operation
L0
H1
L1
H0
All other trademarks mentioned are the property of their respective owners.
Low Noise/Low Power/2-Wire Bus
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
R0
R2
R0
R2
R1
R3
R1
R3
REGISTER
COUNTER
REGISTER
COUNTER
WIPER
(WCR)
WIPER
(WCR)
RESISTOR
RESISTOR
ARRAY
POT 2
ARRAY
POT 3
X9408
FN8191.4
V
V
V
V
V
V
L2
H2
L3
H3
W2
W3
/R
/R
/R
/R
/R
/R
L2
H2
L3
H3
W2
W3

Related parts for X9408WV24IZ-2.7T1

X9408WV24IZ-2.7T1 Summary of contents

Page 1

... L1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. X9408 Low Noise/Low Power/2-Wire Bus FN8191 ...

Page 2

... X9408WV24I-2.7* X9408WV G X9408WV24IZ-2.7* (Note) X9408WV Z G *Add "T1" suffix for tape and reel. **Add "T1" suffix for tape and reel.Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations) ...

Page 3

Pin Descriptions Host Interface Pins SERIAL CLOCK (SCL) The SCL input is used to clock data into and out of the X9408. SERIAL DATA (SDA) SDA is a bidirectional pin used to transfer data into and out of the device. ...

Page 4

Principals of Operation The X9408 is a highly integrated microcircuit incorporating four resistor arrays and their associated registers and counters and the serial interface logic providing direct communication between the host and the XDCP potentiometers. Serial Interface The X9408 supports ...

Page 5

Flow 1. ACK Polling Sequence NON-VOLATILE WRITE COMMAND COMPLETED ENTER ACK POLLING ISSUE START ISSUE SLAVE ADDRESS ACK NO RETURNED? YES NO FURTHER OPERATION? YES ISSUE INSTRUCTION PROCEED Instruction Structure The next byte sent to the X9408 contains the instruction ...

Page 6

The Increment/Decrement command is different from the other commands. Once the command is issued and the X9408 has responded with an acknowledge, the master can clock the selected wiper up and/or down in one segment steps; thereby, providing a fine ...

Page 7

INC/DEC CMD ISSUED SCL SDA FIGURE 6. INCREMENT/DECREMENT TIMING LIMITS SCL FROM MASTER DATA OUTPUT FROM TRANSMITTER DATA OUTPUT FROM RECEIVER START FIGURE 7. ACKNOWLEDGE RESPNSE FROM RECEIVER 7 X9408 VOLTAGE OUT 1 t WRID 8 ...

Page 8

SERIAL DATA PATH FROM INTERFACE CIRCUITRY REGISTER 0 REGISTER 2 IF WCR = 00[H] THEN WCR = 3F[H] THEN FIGURE 8. ...

Page 9

TABLE 3. WIPER COUNTER REGISTER, (6-BIT), VOLATILE WP5 WP4 WP3 WP2 (MSB) Instruction Format NOTES: 1. “MACK”/”SACK”: stands for the acknowledge sent by the master/slave. 2. “A3 ~ A0”: stands for the device addresses sent by ...

Page 10

Write Wiper Counter Register (WCR) to Data Register (DR) S DEVICE TYPE DEVICE T IDENTIFIER ADDRESSES Increment/Decrement Wiper Counter Register (WCR) S DEVICE TYPE DEVICE T IDENTIFIER ADDRESSES A 0 ...

Page 11

... W W Current 11 X9408 Thermal Information Temperature Under Bias . . . . . . . . . . . . . . . . . . . . .-65°C to +135°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Operating Conditions Temperature Range Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C Industrial .-40°C to +85°C TEST CONDITION +25°C, each pot ...

Page 12

DC Electrical Specifications SYMBOL PARAMETER I V supply current (nonvolatile write) CC1 supply current (move wiper, write, CC2 CC read current (standby Input leakage current ...

Page 13

Power-up Requirements (Power-up sequencing can affect correct recall of the wiper registers). The preferred power-on sequence is as follows: First V-, then V and V+, and then the potentiometer pins and Voltage ...

Page 14

AC Timing SYMBOL f Clock frequency SCL t Clock cycle time CYC t Clock high time HIGH t Clock low time LOW t Start setup time SU:STA t Start hold time HD:STA t Stop setup time ...

Page 15

Timing Diagrams Start and Stop Timing g (START) SCL t SU:STA SDA Input Timing t CYC SCL SDA t SU:DAT Output Timing SCL SDA XDCP Timing (for All Load Instructions) SCL SDA VWx 15 X9408 ...

Page 16

XDCP Timing (for Increment/Decrement Instruction) SCL SDA WIPER REGISTER ADDRESS VWx Write Protect and Device Address Pins Timing SCL SDA WP A0, A1 A2, A3 Applications information Basic Configurations of Electronic Potentiometers V R THREE TERMINAL POTENTIOMETER; VARIABLE VOLTAGE DIVIDER ...

Page 17

Application Circuits NONINVERTING AMPLIFIER – (1 OFFSET VOLTAGE ADJUSTMENT 100kΩ – + TL072 10kΩ 10kΩ 10kΩ +12V -12V 17 ...

Page 18

Application Circuits (continued) ATTENUATOR – All -1/2 ≤ G ≤ +1/2 INVERTING AMPLIFIER – ...

Page 19

Plastic Packages for Intergrated Circuits Thin Shrink Small Outline Package Family (TSSOP (N/2)+ (N/2) B TOP VIEW e C SEATING PLANE b 0.10 0. LEADS SIDE VIEW SEE ...

Page 20

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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