x9430 Intersil Corporation, x9430 Datasheet
x9430
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x9430 Summary of contents
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... WP REV 1.0 6/20/00 X9430 ™ DESCRIPTION The X9430 is a monolithic CMOS IC that incorporates two operational amplifiers and two nonvolatile digitally controlled potentiometers. The amplifiers are CMOS differential input voltage operational amplifiers with near rail-to-rail outputs. All pins for the two amplifiers are brought out of the package to allow combining them with the potentiometers or using them as com- plete stand-alone amplifiers ...
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... The address inputs are used to set the least significant 2 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 X9430. A maximum of 4 devices may occupy the SPI serial bus. 1 Potentiometer Pins ...
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... INV1 NI1 V OUT1 PRINCIPLES OF OPERATION The X9430 is an integrated microcircuit incorporating two R digitally controlled potentiometers, two operational amplifiers and their associated registers and counters; R and the serial interface logic providing direct communica tion between the host and the digitally controlled 1 potentiometers ...
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... Circuits) INSTRUCTIONS AND PROGRAMMING Identification (ID) Byte The first byte sent to the X9430 from the host, follow- ing a CS going HIGH to LOW, is called the identifica- tion byte. The most significant four bits of the slave address are a device type identifier, for the X9430 this is fixed as 0101[B] (refer to Figure 1) ...
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... A1 A0 plete. These instructions transfer data between the host and the X9430; either between the host and one of the data registers or directly between the host and Device Address the Wiper Counter and Registers. These instructions are: 1) Read Wiper Counter Register, read the current wiper position of the selected pot 2) Write Wiper Counter Register, i ...
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... X9430 – Preliminary Information Figure 3. Two Byte Command Sequence CS SCK Figure 4. Three-Byte Command Sequence (Write) CS SCK Figure 5. Three-Byte Command Sequence(Read) CS SCK Figure 6. Increment/Decrement Command Sequence CS SCK REV 1.0 6/20/ ...
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... The wiper counter register is a volatile register; that is (0,1) its contents are lost when the X9430 is powered-down. 0,1 Although the registers are automatically loaded with V L (0,1) the value in R0 upon power-up, it should be noted this ...
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... WCR opcode addresses (sent by Host on SI and instruction DR/WCR opcode addresses (sent by X9430 on SO and instruction DR/WCR opcode addresses (sent by host on SI) ...
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... DR CS opcode addresses Rising R R Edge instruction wiper opcode addresses (sent by X9430 on SO www.xicor.com HIGH-VOLTAGE WRITE CYCLE CS Rising I/ I/ Edge . . . . HIGH-VOLTAGE WRITE CYCLE ...
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... X9430 – Preliminary Information ABSOLUTE MAXIMUM RATINGS Temperature under bias ....................–65qC to +135qC Storage temperature .........................–65qC to +150qC Voltage on SCK, SCL or any address input with respect to V Voltage on V+ (referenced Voltage on V- (referenced .......................... -7V SS (V+) – (V-).............................................................. 10V Any V .................................................................... V+ H Any V ...................................................................... V- L Lead temperature (soldering, 10 seconds)........ 300qC ...
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... X9430 – Preliminary Information AMPLIFIER ELECTRICAL CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter V Input Offset Voltage OS TC Input Offset Voltage Temp. VOS Coefficient I Input bias current B I Input offset current OS CMRR Common mode rejection ratio PSRR Power supply ...
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... X9430 – Preliminary Information POTENTIOMETER D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter I V supply current (active) CC1 supply current (nonvolatile CC2 CC write current (standby Input leakage current LI I Output leakage current LO V Input HIGH voltage ...
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... X9430 – Preliminary Information AC TIMING Symbol f SSI/SPI clock frequency SCK t SSI/SPI clock cycle time CYC t SSI/SPI clock high time WH t SSI/SPI clock low time WL t Lead time LEAD t Lag time LAG t SI, SCK, HOLD and CS input setup time SU t SI, SCK, HOLD and CS input hold time ...
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... X9430 – Preliminary Information DCP 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 instruction) WRID SYMBOL TABLE WAVEFORM ...
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... X9430 – Preliminary Information Output Timing CS SCK t MSB SO ADDR SI Hold Timing CS SCK HOLD DCP Timing (for All Load Instructions) CS SCK MSB SI VWx High Impedance SO REV 1.0 6/20/ HSU HOLD ... ... www.xicor.com ... ... LSB ... WRL LSB Characteristics subject to change without notice. ...
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... X9430 – Preliminary Information DCP Timing (for Increment/Decrement Instruction) CS SCK VWx SI ADDR High Impedance SO Write Protect and Device Address Pins Timing REV 1.0 6/20/00 ... t WRID ... ... Inc/Dec Inc/Dec (Any Instruction WPAH WPASU www.xicor.com Characteristics subject to change without notice. ...
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... X9430 – 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 100K: – + TL072 10K: 10K: 10K: +12V -12V REV 1 ...
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... X9430 – Preliminary Information Application Circuits (continued) Attenuator – All -1/2 ð G ð +1/2 Inverting Amplifier – – + REV 1.0 6/20/ 10k: Equivalent L-R Circuit Function Generator ...
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... X9430 – 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 1.0 6/20/00 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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... X9430 – 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 1.0 6/20/00 24-Lead Plastic, TSSOP Package Type V .169 (4.3) .252 (6.4) BSC .177 (4.5) .047 (1.20) ...
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... X9430 – Preliminary Information Ordering Information X9430 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. ...