DA7211-01UA2

DA7211-01UA2 Key Features

■ Stereo multi-bit Delta Sigma DAC with SNR■ Audio serial data bus supports I2S,100 dB ('A' weighted @ 48 kHz)■ Stereo multi-bit Delta Sigma ADC with SNRlef t/right justified, DSP and TDM modes■ Stereo or mono differential microphone96 dB ('A' weighted @ 48 kHz)interf ace■ Ultra low-power stereo headphone driver with■ Programmable ultra-low noise bias supply for□ Stereo DAC to HP playback power:electret microphones2.5 mW□ 2x58 mW output power (16 Ω)□‘Capless’ output via GND centred signals□ Four level charge pump with continuoustracking 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 audioSample Rate Matching■ 2-wire software control interface■ Volume controlled stereo auxiliary inputs andoutputs supporting FM Radio and fixed gainspeaker amplifiers■ Multi-mode audio routing and mixers■ Pop & click suppression circuitry■ ASSP DSP filter engine for digital audioenhancements (acoustic filtering, wind noisesuppression, 5-band equaliser, 3D sound,automatic gain control)■ Supports supply from single voltage(1.8/2.5 V)■ Extensive modular power control■ Package: 36 bump WL-CSP 3x3 – 0.5 mmpitchDatasheetRevision 3.309-Jun-2023

DA7211-01UA2 General Description

DA7211 f eatures a high fidelity and powerful 72 mW per channel headphone amplifier. The devicemay be operated from a single 1.8 V supply. Total device consumption is only 2.5 mW which helpsextend music playback time for battery operated equipment.The f ully integrated fractional PLL has been designed to use minimal power while supporting a widerange of input and output frequencies. Internal suppression circuits help maintain audiosynchronisation in the presence of system noise on the external clock.Six analogue input pins allow multiple audio sources to be internally mixed, eliminating the need forexternal switches. Both single-ended and fully-differential line and microphone inputs are supportedwith built-in variable gain amplifiers to optimise the dynamic range prior to digitisation. This provideshardware support for ambient noise cancellation.The DA7211 provides two volume-controlled differential/single-ended stereo line-out drivers andground-centred stereo amplifiers to directly drive standard 3-wire 16 Ω headphones. For example thedc coupled, dedicated pop-free drivers may be connected simultaneously to stereo headphones,stereo speakers and a mono line out without external switches.All f iltering functions are performed digitally including 5-band EQ and a digital input AGC withprogrammable attack and decay parameters. A configurable signal processing engine allows variousaudio enhancements and effects such as acoustic filtering, transducer equalisation, wind noisesuppression and 3D soundThe multi-slot I2S/PCM interface supports all common sample rates between 8 and 96 kHz in masteror slave mode operation.

DA7211-01UA2 Applications

■ Personal media players■ Portable consumer devices■ Music handsets■ Personal navigation devicesDatasheetRevision 3.309-Jun-2023