EVALUATION KIT AVAILABLE MAX97220AMAX97220E Differential Input DirectDrive Line Drivers/Headphone Amplifiers General Description Features The MAX97220 is a differential input DirectDrive line S Output Power 125mW into 32I with a 5V Supply driver/headphone amplifier. This device is capable of S 3V Output Drive into 1kI with a 5V Supply RMS driving line level loads with 3V into 1kI with a 5V RMS S 2V Output Drive into 600I with a 3.3V Supply RMS supply and 2V into 600I loads from a 3.3V supply. A RMS S Fully Differential Inputs headphone load is capable of being driven with 125mW into 32I with a 5V supply. The IC is offered with an inter- S Fixed or Externally Adjustable Gain with No nally fixed 6dB gain or an externally set gain through Clicks or Pops external resistors. The external gain setting nodes can S Wide 2.5V to 5.5V Operating Range also be used to configure filters for set-top box applica- S DirectDrive Outputs Eliminate DC-Blocking tions. The IC has exceptional THD+N over the full audio Capacitors bandwidth. S Flat THD+N, Better Than 90dB in the Audio Band Two versions of the IC are available with different turn- on times (t ). The A, C, and E versions for headphone ON S 18-Bit SNR Performance, 112dB applications feature a t of 5.5ms while the B and D ON S Footprint Compatible with the MAX9722 versions, intended for set-top-box applications, feature a 130ms t . An on-chip charge pump inverts the power- ON Ordering Information supply input, creating a negative rail. The output stage of the amplifier is powered between the positive input sup- PIN- TOP GAIN TURN-ON PART ply and the output of the charge pump. The bipolar sup- PACKAGE MARK SET TIME (ms) plies bias the output about ground, eliminating the need MAX97220AETE+ 16 TQFN-EP* +AIF External 5.5 for large, distortion-introducing output coupling capaci- MAX97220BETE+ 16 TQFN-EP* +AIG External 130 tors. The IC powers on and off without clicks or pops. MAX97220CETE+ 16 TQFN-EP* +AIH +6dB 5.5 The IC is available in a 3mm x 3mm x 0.8mm, 16-pin MAX97220DETE+ 16 TQFN-EP* +AII +6dB 130 TQFN and is specified over the extended -40NC to +85NC temperature range. MAX97220EETE+ 16 TQFN-EP* +AII External 5.5 Note: All devices operate over the -40NC to +85NC temperature Applications range. Simple Multimedia Interfaces +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Set-Top Boxes Blu-rayK and DVD Players DirectDrive is a registered trademark of Maxim Integrated Products, Inc. LCD Televisions Blu-ray is a trademark of the Blu-ray Disc Association. Prosumer Audio Devices Functional Diagrams appear at end of data sheet. Simplified Block Diagrams R F R IN R R F IN INL- INL- LEFT OUTL LEFT OUTL AUDIO AUDIO R IN INPUT R IN INL+ INPUT INL+ RF R F MAX97220C/D MAX97220A/B/E R F R F SGND R IN RIN INR+ INR+ SGND RIGHT RIGHT OUTR OUTR AUDIO AUDIO R IN INPUT RIN INPUT INR- INR- R F R F For pricing, delivery, and ordering information, please contact Maxim Direct 19-5611 Rev 2 7/12 at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com.MAX97220AMAX97220E Differential Input DirectDrive Line Drivers/Headphone Amplifiers ABSOLUTE MAXIMUM RATINGS (All voltages referenced to PGND.) OUT Short Circuit to PGND .....................................Continuous SVDD, SVDD2, and PVDD ......................................-0.3V to +6V OUT Short Circuit to PVDD ......................................Continuous PVSS and BIAS .......................................................-6V to +0.3V Short Circuit Between OUTL and OUTR ...................Continuous SGND ...................................................................-0.3V to +0.3V Continuous Current Into/Out of All Pins .............................20mA INL-, INL+, INR-, and INR+ (A, B, and E)...-V /2 to +V /2 Continuous Power Dissipation (T = +70NC) (Multilayer Board) SVDD SVDD A INL-, INL+, INR-, TQFN (derate 20.8mW/NC above +70NC)...............1666.7mW Junction Temperature .....................................................+150NC and INR+ (C and D) ....... (-0.75 x V ) to (+0.75 x V ) SVDD SVDD OUTL and OUTR ..................................................-4.5V to +4.5V Operating Temperature Range .......................... -40NC to +85NC Storage Temperature Range ............................ -65NC to +150NC SHDN .......................................................................-0.3V to +6V Lead Temperature (soldering, 10s) ................................+300NC C1P ........................................................-0.3V to (V + 0.3V) PVDD Soldering Temperature (reflow) ......................................+260NC C1N ....................................................... (V - 0.3V) to +0.3V PVSS 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) TQFN Junction-to-Ambient Thermal Resistance (q ) ..........48C/W JA Junction-to-Case Thermal Resistance (q ) .................7C/W JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-lay- er board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. ELECTRICAL CHARACTERISTICS (V = V = V = 5V, V = V = 0V, C = 0.1F, C1 = C2 = 1F, R = 20k, R = 20k (MAX97220A/ PVDD SVDD SVDD2 PGND SGND BIAS IN F MAX97220B/MAX97220E), typical values tested at T = +25C, unless otherwise noted.) (Notes 2 and 3) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS GENERAL PVDD, Supply Voltage Range Guaranteed by PSRR test 2.5 5.5 V SVDD No load, T = +25NC A version 5.5 7 A Quiescent Supply Current I No load, T = +25NC B/C/D/E versions 5 9 mA PVDD A No load, V = V = 3.3V 5 PVDD SVDD Undervoltage Lockout UVLO PVDD falling 2.35 V Shutdown Supply Current I SHDN = 0, T = +25NC 1 10 FA PVDD SD A A/C/E versions 4.8 5.5 6.3 Shutdown to full operation Turn-On Time t ms ON time B/D versions 117 130 143 AMPLIFIERS Input Resistance R C/D versions only 7.4 10 12.7 kI IN Output Signal Attenuation in A/B/E versions 76 V = 0V, SHDN dB Shutdown R = 10kW C/D versions 71 L Gain A C/D versions only 5.5 6 6.5 dB V Output Offset Voltage V Unity gain, T = +25NC 350 FV OS A -0.5 x +0.5 x A/B/E versions V V PVDD PVDD Input Common-Mode Voltage V Voltage at IN+ and IN- V CM Range -0.75 x +0.75 x C/D versions V V PVDD PVDD Maximum Differential Input Signal V (Note 4) PVDD V DIFF P 2 Maxim Integrated