X9409 Xicor, X9409 Datasheet
X9409
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X9409 Summary of contents
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... A2 A3 Data REV 1.6 1/30/03 X9409 DESCRIPTION The X9409 potentiometers (XDCP monolithic CMOS integrated microcircuit. The digitally 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 ...
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... The address inputs are used to set the least significant 4 bits of the 8-bit slave address. A match in the slave address serial data stream must be made with the address input in order to initiate communication with the X9409. A maximum of 16 devices may occupy the 2-wire serial bus. Potentiometer Pins V /R – ...
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... Following a start condition the master must output the address of the slave it is accessing. The most significant four bits of the slave address are the device type identifier (refer to Figure 1 below). For the X9409 this is fixed as 0101[B]. Figure 1. Slave Address Device Type ...
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... Four instructions require a three-byte sequence to complete. These instructions transfer data between the host and the X9409; either between the host and one of the data registers or directly between the host and the Wiper Counter Register. These instructions ...
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... T The Increment/Decrement command is different from the other commands. Once the command is issued and the X9409 has responded with an acknowledge, the master can clock the selected wiper up and/or down in one segment steps; thereby, providing a fine tuning capability to the host. For each SCL clock pulse (t while SDA is HIGH, the selected wiper will move one Table 1 ...
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... X9409 – Preliminary Information Figure 4. Three-Byte Instruction Sequence SCL SDA Figure 5. Increment/Decrement Instruction Sequence SCL SDA Figure 6. Increment/Decrement Timing Limits INC/DEC CMD Issued SCL SDA REV 1.6 1/30/03 ...
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... X9409 – Preliminary Information Figure 7. Acknowledge Response from Receiver SCL from Master Data Output from Transmitter Data Output from Receiver START Figure 8. Detailed Potentiometer Block Diagram Serial Data Path From Interface Circuitry Register 0 Register 2 If WCR = 00[H] then WCR = 3F[H] then V ...
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... Data Register zero (DR0) upon power-up. The WCR is a volatile register; that is, its contents are lost when the X9409 is powered-down. Although the register is automatically loaded with the value in DR0 upon power-up, it should be noted this may be different from the value present at power-down ...
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... X9409 – Preliminary Information 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 the master. (3) “X”: indicates that “0” for testing purpose but physically “don’t care” condition. ...
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... X9409 – Preliminary Information Increment/Decrement Wiper Counter Register (WCR) S device type device S T identifier addresses Global Transfer Data Register (DR) to Wiper Counter Register (WCR) S device type device S T identifier addresses ...
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... X9409 – Preliminary Information ABSOLUTE MAXIMUM RATINGS Temperature under bias ....................–65°C to +135°C Storage temperature .........................–65°C to +150°C Voltage on SDA, SCL or any address input with respect to V ......................... –1V to +7V SS ∆ – V |........................................................ Lead temperature (soldering, 10 seconds).........300°C ...
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... X9409 – Preliminary Information D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter I V supply current (Active) CC1 supply current CC2 CC (Nonvolatile Write current (standby Input leakage current LI I Output leakage current LO V Input HIGH voltage ...
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... X9409 – Preliminary Information A.C. TEST CONDITIONS I nput pulse levels V Input rise and fall times 10ns Input and output timing level V EQUIVALENT A.C. LOAD CIRCUIT 5V SDA Output AC TIMING (over recommended operating condition) Symbol f Clock frequency SCL t Clock cycle time CYC t Clock high time ...
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... X9409 – Preliminary Information XDCP TIMING Symbol t Wiper response time after the third (last) power supply is stable WRPO t Wiper response time after instruction issued (all load instructions) WRL t Wiper response time from an active SCL/SCK edge (increment/decrement WRID instruction) Note: (9) A device must internally provide a hold time of at least 300ns for the SDA signal in order to bridge the undefined region of the falling edge of SCL ...
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... X9409 – Preliminary Information XDCP Timing (for All Load Instructions) SCL SDA VWx XDCP Timing (for Increment/Decrement Instruction) SCL Wiper Register Address SDA Write Protect and Device Address Pins Timing SCL SDA WP A0, A1 A2, A3 REV 1.6 1/30/03 LSB t WRL Inc/Dec (START) (STOP) ...
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... X9409 – Preliminary Information APPLICATIONS INFORMATION Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider Application Circuits Noninverting Amplifier – (1 Offset Voltage Adjustment 100KΩ – + TL072 10KΩ 10KΩ ...
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... X9409 – Preliminary Information Application Circuits (continued) Attenuator R 1 – All -1/2 ≤ G ≤ +1/2 Inverting Amplifier – – + REV 1.6 1/30/ 10kΩ Function Generator ...
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... X9409 – Preliminary Information PACKAGING INFORMATION 24-Lead Plastic Small Outline Gull Wing Package Type S Pin 1 Index Pin 1 (4X) 7° 0.050 (1.27) 0.010 (0.25) 0.020 (0.50) 0° – 8° 0.015 (0.40) 0.050 (1.27) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) REV 1.6 1/30/03 0.014 (0.35) 0.020 (0.50) 0.598 (15.20) 0.610 (15.49) X 45° 0.009 (0.22) 0.420" ...
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... X9409 – Preliminary Information PACKAGING INFORMATION .026 (.65) BSC .303 (7.70) .311 (7.90) .0075 (.19) .0118 (.30) 0°–8° .020 (.50) .030 (.75) Detail A (20X) See Detail “A” NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) REV 1.6 1/30/03 24-Lead Plastic, TSSOP Package Type V .169 (4.3) .252 (6.4) BSC .177 (4.5) .047 (1.20) ...
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... X9409 – Preliminary Information PACKAGING INFORMATION 24-Bump Chip Scale Package (CSP B24) 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 – Width j Ball Pitch – Length k Ball to Edge Spacing – ...
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... X9409 – Preliminary Information Ordering Information X9409 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 description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. ...