Ultra Low Power CODEC with ALC & Speaker Driver

DA7212 is a high performance, low-power audio codec with an enhanced hybrid ALC and a powerful speaker driver targeting portable and embedded applications. The audio frontend simultaneously supports stereo FM line input with four analogue (or two analogue and two digital) microphones with two independent microphone biasesThe headphone output is true-ground Class-G with integrated charge pump. There is also a differential Class AB speaker driver that can serve as a mono lineout.Digital audio transfer to/from the external processor is via a bidirectional I2S interface that supports all common sample rates. The device may be operated in slave or master modes using the internal PLL which may be bypassed if not required.To fully optimise each customer application, a range of built-in filtering, equalisation and audio enhancements are available. These are accessible by the processor over the I2C serial interface and can be used to minimise latency and power consumption.

• 100dB stereo audio playback into 16-32 ohm headphones
• 67mW headphone driver into 16? at 2.5V;
  • Minimal external components: a capless, true-ground driver eliminates bulky headphone coupling capacitors
• 1.2W mono speaker driver
• 3.1mW quiescent power consumption for DAC to headphone playback
• Single supply operation
• Stereo digital microphone support
• Supports up to four microphones with two separate low-noise microphone bias outputs
• Low-power PLL provides system clocking and audio sample rate flexibility
• Built-in 5-band equaliser, ALC and noise-gate functions
• Built-in beep generator that outputs all DTMF keypad values, as well as mixing two independently configurable sine waves between 10Hz and 12kHz
• 34-ball WLCSP (4.54mm x 1.66mm) package
• Staggered 0.5mm pitch for easy PCB routing