MAX9892 Shunt Mode Audio Click-and-Pop Eliminator General Description Features The MAX9892 is an audio click-and-pop eliminator for Distortion-Free, Click-and-Pop Elimination portable multimedia devices. Operating from a 1.7V to Less than 1A Supply Current 3.6V supply, the MAX9892 connects to the output of the 1.7V to 3.6V Single-Supply Operation existing system amplifier and provides a low-impedance path to ground during startup and shutdown. The inputs Tiny Packages INL and INR accept voltage swings from V to 5.5V 6-Bump UCSP (1mm x 1.52mm x 0.6mm) DD below V . See the Setting the Supply Voltage section 6-Pin DFN (2mm x 2mm x 0.75mm) DD for more information. The power-up and power-down Ordering Information transients are shunted to ground to prevent clicks and pops from becoming audible. PART TEMP RANGE PIN-PACKAGE The MAX9892 features two low-impedance analog -40C to +85C 6 UCSP MAX9892ERT+ switches controlled by MUTE that opens and closes the MAX9892ELT+ -40C to +85C 6 DFN switches. The switches are open during normal operation +Denotes a lead-free/RoHS-compliant package. and have no impact on the output signal. During startup and shutdown of the amplifier, the MAX9892 can be activated to short the outputs to ground and prevent clicks Pin Configurations and pops from pulling current through the headphones. The MAX9892 is available in 6-bump UCSP (1mm TOP VIEW (BUMPS ON BOTTOM) x 1.52mm x 0.6mm) and 6-pin DFN (2mm x 2mm x 0.75mm) packages. The MAX9892 is specified over the 1 2 3 -40C to +85C temperature range. A INL GND INR Applications Mobile Phones MAX9892 Smart Phones Mobile Internet Devices Portable Gaming Consoles V SET B MUTE DD Portable Media Players Notebook Computers UCSP Typical Operating Circuit TOP VIEW MUTE V SET DD R SERIES 6 5 4 HEADPHONE R SERIES AMPLIFIER MAX9892 INL INR MAX9892 1.7V TO 3.6V MUTE V DD + 1 2 3 0.1F INL INR GND SET DFN GND C SET UCSP is a trademark of Maxim Integrated Products, Inc. 19-4295 Rev 1 12/16MAX9892 Shunt Mode Audio Click-and-Pop Eliminator Absolute Maximum Ratings V , MUTE, SET to GND .......................................-0.3V to +6V Operating Temperature Range ........................... -40C to +85C DD INL, INR to GND ..............................(V - 6V) to (V + 0.3V) Junction Temperature ......................................................+150C DD DD Continuous Current In/Out of V .....................................30mA Storage Temperature Range ............................ -65C to +150C DD Continuous Current In/Out of MUTE ..................................30mA Lead Temperature (soldering, 10s) .................................+300C Continuous Current In/Out of SET .....................................30mA Bump Temperature (soldering) Continuous Current In/Out of INL, INR and GND ............390mA Reflow ..........................................................................+235C Continuous Power Dissipation (T = +70C) A 6-Bump UCSP (derate 3.9mW/C above +70C) .....308.3mW 6-Pin DFN (derate 4.5mW/C above +70C) .........357.8mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Thermal Characteristics (Note 1) UCSP DFN Junction-to-Ambient Thermal Resistance ( ) ...259.50C/W Junction-to-Ambient Thermal Resistance ( ) ...223.60C/W JA JA Junction-to-Case Thermal Resistance ( ) ..................... N/A Junction-to-Case Thermal Resistance ( ) .............122C/W JC JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (V = 3.0V, V = 0, T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 2) DD GND A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range V Guaranteed by R test 1.7 5.5 V DD ON Recommended Supply Voltage Range V (Note 3) 1.7 3.6 V DD Supply Current I V = 5.5V, T = +25C (Note 4) 0.6 1 A DD DD A V - DD Input Voltage Range V Guaranteed by input leakage current test V V IN DD 5.5V Measured from MUTE = GND and input voltage Turn-On Time (Figure 1) t 130 ns ON settled to 90% of its final value C = 500pF 4 10 17 SET Turn-Off Time (Figure 1) t C = 50pF 1 ms OFF SET C = 50nF 1000 SET Turn-On Time Resistor R C = 500pF 350 800 1300 k SET SET V = 3.0V 0.3 DD Switch On-Resistance R V = 1.7V 2 ON DD 1 V = 5.5V DD Click-and-Pop Reduction R = 30, R = 16 35 dB SERIES LOAD V = V - 5.5V, V = 1.7V 1 IN DD DD Input Leakage Current I T = +25C A IN A V = V , V = 5.5V 1 IN DD DD MUTE Leakage Current I V = 5.5V, V = 0 or 5.5V, T = +25C 1 A MUTE DD MUTE A MUTE Input-Voltage High V 1.5 V IH MUTE Input-Voltage Low V 0.4 V IL Note 2: All devices are 100% production tested at T = +25C. All temperature limits are guaranteed by design. A Note 3: Operating within the recommended supply voltage range ensures that negative audio signals are not limited by the device. Supply voltages above the recommended supply voltage range may limit the headphone amplifiers maximum output voltage. Note 4: Supply current is measured when switches are off. Maxim Integrated 2 www.maximintegrated.com