AK4309B - Asahi Kasei Microsystems

AK4309B 16BIT SCF DAC FOR MULTIMEDIA

The AK4309B is a 1bit stereo DAC for multimedia audio systems. A 1bit DAC can achieve monotonicity and low distortion with no adjustment and is superior to traditional R-2R ladder based DACs. In the AK4309B, the loss of accuracy from clock jitter is also improved by using SCF techniques for on-chip post filter. The AK4309B includes continuous time filter wit.

Features

† Sampling Rate Ranging from 8kHz to 50kHz † On chip Perfect filtering
• 8 times FIR Interpolator
• 2nd order SCF and CTF
• Total Response: ±0.5dB at 20kHz † On chip Buffer with Single End Output † Master Clock: 256fs or 384fs † High Tolerance to Clock Jitter † TTL Level Digital Interface † THD+N: -84dB † Dynamic Range: 90dB † Output Level: 3.4Vpp † Power Supply: 5V±10% † Low Power Dissipation: 80mW at 5V † Small Package: 20pin SSOP † Pin Compatible with AK4310/4309A 0177-E-00 -1- 1997/6 ASAHI KASEI [AK4309B] „ Ordering Guide AK4309BVM AKD4309B 20pin SSOP(0.65mm pitch) -10∼ +70° C Evalua.