AK4370

[AK4370] AK4370 24-Bit 2ch DAC with HP-AMP & Output Mixer GENERAL DESCRIPTION The AK4370 is a 24-bit DAC with headphone amplifier. The AK4370 features an analog mixing circuit that allows easy interfacing in mobile phone and portable communication designs. The integrated headphone amplifier features “pop-noise free” power-on/off, a mute control, and it delivers 40mW of power into 16. The AK4370 is packaged in a 24-pin QFN (4mm×4mm) package, ideal for portable applications. FEATURE  Multi-bit  DAC  Sampling Rate - 8kHz  48kHz  On chip perfect filtering 8 times FIR interpolator - Passband: 20kHz - Passband Ripple: 0.02dB - Stopband Attenuation: 54dB  Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz  System Clock - 256fs/384fs/512fs/768fs/1024fs - Input Level: AC Couple Input Available  Audio I/F Format: MSB First, 2’s Complement - I2S, 24bit MSB justified, 24bit/20bit/16bit LSB justified - Master/Slave Mode  Digital Mixing: LR, LL, RR, (L+R)/2  Bass Boost Function  Digital ATT  Analog Mixing Circuit: 4 Inputs (Single-ended or Full-differential)  Stereo Lineout - S/N: 90dB@3.3V - Output Volume: +6 to –24dB (or 0 to –30dB), 2dB step  Headphone Amplifier - Output Power: 40mW x 2ch @16, 3.3V - S/N: 92dB@3.3V - Pop Noise Free at Power-ON/OFF and Mute - Output Volume: 0 ~ –63dB & +12/+6/0 dB Gain 1.5dB step (0 ~ –30dB), 3dB step (–30 ~ –63dB)  P Interface: 3-wire/I2C  Power Supply: 1.6V  3.6V  Power Supply Current: 3.8mA @1.8V (6.8mW, DAC+HP, No output)  T...