RENESAS DA7212-01UM2

The DA7212 is an ultra-low power audio codec targeting portable audio devices. The input paths support stereo FM line input and up to four analogue (or two analogue and two digital) microphones with two independent microphone biases. Comprehensive analogue mixing and bypass paths to the output drivers are available. The 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 bi-directional digital audio interface that supports all common sample rates and formats. 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.

• 100 dB SNR stereo audio playback into 16 Ω headphones
• 3.1 mW power consumption for stereo DAC to headphone playback
• 1.2 W mono speaker driver
• 650 μA mono voice record
• Stereo digital microphone support
• Supports up to four analogue microphones
• Two 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
• Integrated system controller to eliminate pops and clicks
• Minimised external component count
• 34-ball WL-CSP (4.54 mm×1.66 mm) package
• Staggered 0.5 mm pitch for easy PCB routing allowing low cost manufacture

• Personal Media Players
• Audio headphone/headsets
• Wearables
• Embedded applications
• Arduino compatible development systems