X9111 Xicor, X9111 Datasheet
X9111
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X9111 Summary of contents
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... REV 1.1.15 5/9/03 S YSTEM 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 ...
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... 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 for comparators and detectors • Control the volume in audio circuits • ...
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... X9111 – Preliminary Information PIN CONFIGURATION TSSOP X9111 SCK PIN ASSIGNMENTS Pin Pin (TSSOP) (CSP B2 REV 1.1.15 5/9/ ...
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... This can help to reduce system pin count. Array Description The X9111 is comprised of a resistor array (see Figure 1). The array contains the equivalent of 1023 discrete resistive segments that are connected in series. The physical ends of each array are equivalent to the fixed terminals of a mechanical potentiometer (R inputs) ...
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... Data Register zero (DR0) upon power-up. The Wiper Counter Register is a volatile register; that is, its contents are lost when the X9111 is powered- down. Although the register is automatically loaded with the value in R0 upon power-up, this may be different from the value present at power-down ...
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... DEVICE INSTRUCTIONS Identification Byte (ID and A) The first byte sent to the X9111 from the host, following a CS going HIGH to LOW, is called the Identification Byte. The most significant four bits of the slave address are a device type identifier. The ID[3:0] bits is the device ID for the X9111 ...
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... The Read Status Register instruction is the only unique format (see Figure 4). Two instructions require a two-byte sequence to complete (see Figure 2). These instructions transfer data between the host and the X9111; either between Figure 2. Two-Byte Instruction Sequence CS SCK SI ...
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... 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 4. Four-Byte Instruction Sequence (Read Status Registers) CS SCK R/W I2 ID3 ID2 ID1 ID0 0 ...
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... Wiper Position (sent by X9111 on SO Characteristics subject to change without notice. ...
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... X9111 – Preliminary Information Write Data Register (DR) Device Type Device Instruction Identifier Addresses CS Falling Edge Transfer Data Register (DR) to Wiper Counter Register (WCR) Device Type Device Identifier Addresses CS Falling ...
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... 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 temperature (soldering, 10 seconds) ........ 300°C I (10 seconds) ..................................................±6mA ...
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... 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 leakage current LI I Output leakage current LO V Input HIGH voltage ...
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... 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 t SSI/SPI clock cycle time CYC t SSI/SPI clock high time ...
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... 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 (all load WRL instructions) SYMBOL TABLE REV 1 ...
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... 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 REV 1.1.15 5/9/03 t CYC ... ... ... t HO ... t t HSU HH ... HOLD www.xicor.com ...
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... 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 WPAH WPASU www.xicor.com Characteristics subject to change without notice. LSB ...
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... 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 Adjustment 100KΩ – + TL072 10KΩ 10KΩ 10KΩ ...
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... X9111 – Preliminary Information Application Circuits (Continued) Attenuator – -1/2 ≤ G ≤ +1/2 Inverting Amplifier – Function Generator – + frequency ∝ amplitude ∝ REV 1.1.15 5/9/03 ...
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... 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 - Width j Ball Pitch - Length k Ball to Edge Spacing – Width ...
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... 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 (5.1) .0075 (.19) .002 (.05) .0118 (.30) .006 (.15) .019 (.50) .029 (.75) Detail A (20X) www.xicor.com .252 (6.4) BSC ...
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... 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 description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. ...