MAX5456 MAXIM [Maxim Integrated Products], MAX5456 Datasheet
MAX5456
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MAX5456 Summary of contents
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... Each potentiometer has 32 tap points and replaces mechanical potentiometers. Refer to the MAX5408– MAX5411 data sheet for SPI™ versions of the MAX5456/ MAX5457. Use the MAX5456/MAX5457 digital inputs with momen- tary contact single-pole/single-throw (SPST) pushbutton switches. Each input includes internal debounce cir- cuitry and a 50kΩ ...
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... Stereo Audio Taper Potentiometers with Pushbutton Interface ABSOLUTE MAXIMUM RATINGS (MAX5456) SHDN, MUTE, VOLUP, VOLDN, BAL_ to GND.....................................-0. (MAX5457) SHDN, MUTE, UP/BAL1, DN/BAL0, MODE, MODE_IND to GND...........................-0. H_, L_, and ..............................-0. GND ..............................................................-0. ................................................................-0. GND.........................................................-0.3V to +6V ...
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Stereo Audio Taper Potentiometers ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V LOGIC SS unless otherwise specified.) (Note 1) PARAMETER SYMBOL First Autoincrement Point First Autoincrement Rate Second Autoincrement Point Second Autoincrement Rate DIGITAL INPUTS (V ...
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... A END-TO-END RESISTANCE % CHANGE vs. TEMPERATURE 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0 -40 - TEMPERATURE (°C) WIPER SWITCHING TRANSIENT (TIMING OUT) MAX5456/7 toc05a VOLUP WIPER TRANSITION FROM -2dB to 0dB 10ms/div LOGIC SUPPLY CURRENT vs. LOGIC SUPPLY VOLTAGE ACTIVE LOGIC SUPPLY CURRENT 2.7 3.2 3.7 4.2 4.7 5.2 5.5 LOGIC SUPPLY VOLTAGE (V) = +25°C, ...
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Stereo Audio Taper Potentiometers ( +2.7V to +5.5V 0V, GND = 0V LOGIC SS unless otherwise specified.) LOGIC SUPPLY CURRENT vs. LOGIC SUPPLY VOLTAGE 0.30 0.25 0.20 STANDBY LOGIC SUPPLY CURRENT 0.15 0.10 ...
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... Potentiometer 0 Low Terminal. L0 and H0 terminals can be reversed. Potentiometer 0 Wiper Terminal Active-Low Shutdown Input. In shutdown mode, the MAX5456/MAX5457 store the last wiper settings. The wipers move to the L end of the resistor string, and the H end of the resistor string disconnects from the signal input. Terminating shutdown mode restores the wipers to their previous settings ...
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... Table 2). The SmartWiper control eliminates the need for a microcomputer to increase the wiper transition rate. The MAX5456 features independent control inputs for volume and balance control while the MAX5457 MODE input toggles between volume and balance control. ...
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Stereo Audio Taper Potentiometers with Pushbutton Interface FROM 3c (d) L_ Figure 3. Volume-Control Operation Table 1. Wiper Position and Attenuation POSITION ATTENUATION (dB ...
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... Stereo Audio Taper Potentiometers In balance-control mode, the MAX5456/MAX5457 adjust the balance between channel 0 and channel 1 while maintaining the set volume. For example, if the volume of channel 0 equals the volume of channel 1, forcing the balance towards channel 1 increases the attenuation of channel 0 (Figure 4a). If channel higher attenuation than channel 0, adjusting the bal- ance to channel 1 moves channel 1’ ...
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... V the wiper changes position only when the voltage the same as the voltage at the corresponding H_. Each wiper has its own suppression and timeout circuitry (see Figure 5a). The MAX5456/MAX5457 change wiper posi- tion after 32ms or when whichever occurs first ...
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... Terminating shutdown mode restores the wipers to their previous settings (see Figure 2). Shutdown does not affect the state of MODE_IND. Mute Function, MUTE The MAX5456/MAX5457 feature a mute function. Success- ive pulses on MUTE toggle its setting. Activating the mute SWITCH CONTACT IS BOUNCING ...
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... Only a single button push configures the device. Additionally, a 40ms blocking period affects all other inputs when releasing any input forced low. The MAX5456/MAX5457 do not respond to any logic input until the blocking peri- od ends. If multiple wiper-control buttons are pressed, ...
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Stereo Audio Taper Potentiometers LEFT CHANNEL MAX4494 PGND Figure 6. Volume/Balance Control ______________________________________________________________________________________ with Pushbutton Interface LOGIC V SHDN V DD LOGIC H0 L0 MAX5457 / ...
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... LOGIC BAL1 14 GND BAL0 MUTE MODE MAX5457 TQFN Chip Information GND MAX5456 TQFN GND ...
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... Stereo Audio Taper Potentiometers H_ V PEAK MAX5456/MAX5457 PEAK MAX5456/MAX5457 L_ ______________________________________________________________________________________ with Pushbutton Interface Typical Application Circuit (Single Supply ∞ R LOAD V PEAK Typical Application Circuit (Dual Supplies ∞ R LOAD V PEAK ...
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... V DD LOGIC SHUTDOWN MUTE L0 V GND SS 16 ______________________________________________________________________________________ SHDN MAX5456 CLICK/POP SUPPRESSION CIRCUITRY POSITION COUNTER POSITION COUNTER UP/DN TIMING AND CONTROL DEBOUNCE DEBOUNCE DEBOUNCE DEBOUNCE VOLUP VOLDN BAL0 BAL1 Functional Diagrams SHUTDOWN CLICK/POP SUPPRESSION 0 CIRCUITRY ...
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Stereo Audio Taper Potentiometers LOGIC SHUTDOWN MUTE L0 V GND SS ______________________________________________________________________________________ with Pushbutton Interface Functional Diagrams (continued) SHDN MODE_IND MAX5457 CLICK/POP SUPPRESSION CIRCUITRY POSITION ...
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Stereo Audio Taper Potentiometers with Pushbutton Interface (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 18 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, QSOP .150", .025" LEAD ...
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Stereo Audio Taper Potentiometers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ with Pushbutton Interface Package Information (continued) PACKAGE OUTLINE, 12, 16, 20, 24, ...
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Stereo Audio Taper Potentiometers with Pushbutton Interface (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other ...