General description
The DA7210 is a high fidelity audio codec with integrated true-ground capless headphone driver suitable for a variety of low power, digital portable audio products.
Featuring a high efficiency headphone amplifier and supporting economic single supply voltages down to 1.8 V, the ultra-low 2.5 mW power consumption extends music playback time for battery operated equipment.
Eight analogue input pins allow multiple audio sources to be internally mixed, eliminating the need for external switches. Both single-ended and fully-differential line and microphone inputs are supported with built-in variable gain amplifiers to optimise dynamic range prior to digitisation.

KEY FEATUREs
■ Stereo multi-bit Delta Sigma DAC with SNR
   100 dB (A weighted @ 48 kHz)
■ Stereo multi-bit Delta Sigma ADC with SNR
   96 dB (A weighted @ 48 kHz)
■ Ultra low-power stereo headphone driver with
   □ Stereo DAC to HP playback power:
      2.5 mW
   □ 2x58 mW output power (16 Ω)
   □ ‘Capless’ output via GND centred signals
   □ Four level charge pump with continuous
      tracking of audio signal (Class G)
   □ Short circuit protection
■ Support of 8, 11.025, 12, 16, 22.05, 24, 32,
   44.1, 48 and 96 kHz sample rates
■ On-chip PLL with signal shaper and audio
   Sample Rate Matching
■ Wide range of external clocks including
   industry standard 256xFs, system clock 12,
   13, 24, 26 or 27 MHz and low power 32 kHz
   mode
■ Audio serial data bus supports I2S,
   left/right justified, DSP and TDM modes
■ Stereo or mono differential microphone
   interface
■ Programmable ultra-low noise bias supply for
   electret microphones
■ Volume controlled stereo auxiliary inputs and
   outputs supporting FM Radio and fixed gain
   speaker amplifiers
■ Multi-mode audio routing and mixers
■ Pop & click suppression circuitry
■ ASSP DSP filter engine for digital audio
   enhancements (acoustic filtering, wind noise
   suppression, 5-band equaliser, 3D sound,
   automatic gain control)
■ Supports supply from single voltage
   (1.8/2.5 V)
■ Extensive modular power control
■ Package: 49 bump WL-CSP – 0.4 mm pitch

APPLICATIONs
■ Personal media players
■ Portable consumer devices
■ Music handsets
■ Personal navigation devices