GENERAL DESCRIPTION
The SSM6322 is an integrated, dual-channel audio amplifier solution that interfaces directly with audio DAC/CODEC, maximizing the fidelity of high fidelity audio signal chains. The highly efficient design of the SSM6322 delivers outstanding audio performance while minimizing power dissipation for maximum battery life in portable applications.

FEATURES
   Flexible architecture to interface with all digital-to-analog
      converters (DACs)
      Accepts differential current or voltage input (provides
         single-ended voltage output)
   High output current drive capability
      Greater than 100 mA rms output current
      Accurately reproduces large music transients into heavy
         loads (16 Ω to 32 Ω)
   Excellent audio fidelity
      −121 dB total harmonic distortion plus noise (THD + N) at
         1 kHz, 2 V rms output with ±5 V supply and 32 Ω load
      Low output integrated noise (10 Hz to 22 kHz) of
         1.8 μV rms with A-weighted filter
   Supply range: ±3.3 V to ±6 V (typical)
   Low power operation
      Enabled: 60 mW, VCC = +5 V, VEE = −5 V
      Disabled/voice select: <30 μA
   Low power disable mode with high output impedance
      High-Z in power-down mode eliminating voice mode
         switch from the high fidelity path
   Greater than 87 dB power supply rejection ratio (PSRR) at
      20 kHz
   Adjustable input common-mode voltage with resistor
      programmable reference voltage
      1.45 V (typical) with no external components
   Capable of two single-pole, low-pass filters in series
      2.2 nF maximum input capacitor
      Second filter between the GAINx and FILTx pins
   Pop and click noise suppression
   Signal chain integration supports small printed circuit board
      (PCB) area
      Compact 4 mm × 4 mm LFCSP package

APPLICATIONS
   High fidelity headphone drivers
      Mobile phones
      Bluetooth speakers and headphones
      Gaming notebooks and tablets
   A/V receivers
   Professional audio equipment
   Audio test equipment
   Automobile infotainment systems