X9251_07 INTERSIL [Intersil Corporation], X9251_07 Datasheet
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X9251_07
Related parts for X9251_07
X9251_07 Summary of contents
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Data Sheet Quad Digitally-Controlled (XDCP™) Potentiometer The X9251 integrates four digitally controlled potentio- meters (XDCP monolithic CMOS integrated circuit. The digitally controlled potentiometers are imple-mented with a combination of resistor elements and CMOS switches. The position of ...
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Ordering Information PART PART NUMBER MARKING X9251US24 X9251US X9251US24Z (Note) X9251US Z X9251UV24 X9251UV X9251UV24Z (Note) X9251UV Z X9251TS24 X9251TS X9251TS24Z (Note) X9251TS Z X9251TS24I X9251TS I X9251TS24IZ (Note) X9251TS ZI X9251TV24I X9251TV I X9251TV24IZ (Note) X9251TV ZI X9251US24I-2.7 X9251US ...
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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 • Trim out the offset voltage error in a voltage amplifier circuit ...
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Pin Descriptions Bus Interface Pins SERIAL OUTPUT (SO serial data output pin. During a read cycle, data is shifted out on this pin. Data is clocked out by the falling edge of the serial clock. SERIAL INPUT ...
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One of Four Potentiometers #: SERIAL DATA PATH FROM INTERFACE CIRCUITRY IF WCR = 00[H] then R is closet WCR = FF[H] then R is closet FIGURE 1. ...
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TABLE 1. WIPER COUNTER REGISTER, WCR (8-bit), WCR[7:0]: USED TO STORE THE CURRENT WIPER POSITION (VOLATILE) WCR7 WCR6 (MSB) TABLE 2. DATA REGISTER, DR (8-bit), DR[7:0]: USED TO STORE WIPER POSITIONS OR DATA (NON-VOLATILE) Bit 7 Bit 6 (MSB) Serial ...
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INSTRUCTION I3 Read Wiper Counter Register 1 Write Wiper Counter Register 1 Read Data Register 1 Write Data Register 1 XFR Data Register to 1 Wiper Counter Register XFR Wiper Counter 1 Register to Data Register Global XFR Data Registers ...
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Increment/Decrement Command The final command is Increment/Decrement (See Figures 6 and 7). The Increment/Decrement command is different from the other commands. Once the command is issued and the X9251 has responded with an Acknowledge, the master can clock the selected ...
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CS SCK ID3 ID2 ID1 ID0 INTERNAL DEVICE ID ADDRESS FIGURE 5. THREE-BYTE INSTRUCTION SEQUENCE (READ STATUS REGISTER) CS SCK ID3 ID2 ...
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Instruction Format Read Wiper Counter Register (WCR) Device Type Device Identifier Addresses CS Falling Edge Write Wiper Counter Register (WCR) Device Type Device Identifier Addresses CS Falling Edge ...
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Global Transfer Wiper Counter Register (WCR) to Data Register (DR) Device Type Device CS Identifier Addresses Falling Edge Transfer Wiper Counter Register (WCR) to Data Register (DR) Device Type Device CS Identifier ...
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Absolute Maximum Ratings Temperature Under Bias . . . . . . . . . . . . . . . . . . . . .-65°C to +135°C Storage Temperature . . . . . . . . . ...
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DC Operating Characteristics (Over the recommended operating conditions unless otherwise specified.) SYMBOL PARAMETER I V supply current CC1 CC (active supply current CC2 CC (non-volatile write current (standby Input leakage current LI I ...
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Equivalent A.C. Load Circuit V CC 2kΩ SO pin 2kΩ AC TIMING SYMBOL f SPI clock frequency SCK t SPI clock cycle rime CYC t SPI clock high rime WH t SPI clock low time WL t Lead time LEAD ...
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Symbol Table WAVEFORM INPUTS Must be steady May change from Low to High May change from High to Low Don’t Care: Changes Allowed N/A Timing Diagrams Input Timing CS t LEAD SCK MSB SI HIGH IMPEDANCE ...
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Hold Timing CS SCK HOLD XDCP Timing (for All Load Instructions) CS SCK MSB SI VWx HIGH IMPEDANCE SO Write Protect and Device Address Pins Timing X9251 t t HSU HH ...
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Applications information Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider Application Circuits NON INVERTING AMPLIFIER – (1 OFFSET VOLTAGE ADJUSTMENT R ...
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Application Circuits (continued) ATTENUATOR – -1/2 ≤ G ≤ +1/2 INVERTING AMPLIFIER ...
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Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in the ...
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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 DETAIL “X” c END VIEW ...