AK4351

Features:

Sampling Rate Ranging from 8kHz to 50kHz
128 times Oversampling
Perfect filtering
         18bit 8 times FIR Interpolator with 57dB attenuation
         2nd order LPF
         Total Response: ±0.2dB at 20kHz
On chip Buffer with Single End Output
Digital de-emphasis for 44.1kHz sampling
 I/F format: MSB justified, 16/18bit LSB justified or I²S
Master clock: 256fs or 384fs
TTL Level Digital Interface
THD+N: -88dB
D-Range: 96dB
High Tolerance to Clock Jitter
Power supply: 4.5 to 5.5V
Very Small Package: 16pin TSSOP (6.4mm x 5.0mm)


Pinout




Specifications

(VSS=0V; Note 1)

Parameter	Symbol	min	max	Units
Power Supplies	VDD	-0.3	6.0	V
Input Current, Any Pin Except Supplies	IIN	-	±10	mA
Input Voltage	VINA	-0.3	AVDD+0.3	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 AK4351 is a high cost performance 18bit stereo DAC for low-end digital audio systems. The modulator in the product uses the new developed Advanced Multi Bit architecture with wide dynamic range. The analog outputs are filtered in the analog domain by a combination of SCF and CTF. Therefore, any external filters are not required. The SCF techniques also improve the loss of accuracy from clock jitter. Therefore, the AK4351 is suitable for the system like STB including PLL circuit. The product is available in very small 16pin TSSOP package, which reduces system space.