AK4367

Features:

Multi-bit DAC
Sampling Rate: 8kHz∼48kHz
64x Oversampling
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
   - AC Couple Input Available
Audio I/F Format: MSB First, 2's Compliment
   - I²S, 24bit MSB justified, 24bit/20bit/16bit LSB justified
Digital ATT
Analog Mixing Circuit
Mono Lineout
P Interface: 3-wire/I2C
Bass Boost Function
Headphone Amplifier
   - Output Power: 50mW x 2ch @16, 3.3V
   - S/N: 92dB@2.4V
   - Pop Noise Free at Power-ON/OFF and Mute
Power Supply: 2.2V ∼ 3.6V
Power Supply Current: 2.8mA@2.4V (@HP-AMP no-output)
Ta: −40 ∼ 85°C
Small Package: 20pin QFN

Pinout




Specifications

(VSS=0V; Note 1)

Parameter		Symbol	min	max	Units
Power Supplies	Analog, Digital HP-AMP	VDD HVDD	−0.3 −0.3	4.6 4.6	V V
Input Current, Any Pin Except Supplies		IIN	-	±10	mA
Input Voltage		VIN	-0.3	VDD+0.3or 4.6	V
Ambient Temperature (powered applied)		Ta	-40	85	°C
Storage Temperature		Tstg	-65	150	°C

Note 1. All voltages with respect to ground.


Description

The AK4367 is 24bit DAC with built-in Headphone Amplifier. The AK4367 features an analog mixing circuit that allows easy interfacing in mobile phone and portable communication designs. The integrated headphone amplifier features "pop-free" power-on/off, a mute control and delivers 50mW of power at 16. The AK4365 is housed in a 20pin QFN package, making it suitable for portable applications.