AK4394

Features:

128x Oversampling
Sampling Rate up to 192kHz
24Bit 8x Digital Filter (Slow-roll-off option)
        Ripple: ±0.005dB, Attenuation: 75dB
High Tolerance to Clock Jitter
Low Distortion Differential Output
Digital deemphasis
        for 32, 44.1, 48 & 96kHz sampling
Soft Mute
THD+N: 100dB
DR, S/N: 120dB
I/F format : MSB justified, 16/20/24bit LSB justified, I2S
Master Clock: Normal Speed: 256fs, 384fs, 512fs or 768fs
                          Double Speed: 128fs, 192fs, 256fs or 384fs
                          Quad Speed: 128fs or 192fs
Power Supply: 5V±5%
TTL Level Digital I/F
Small Package: 28pin VSOP
 Pin Compatible with AK4393


Pinout




Specifications

(AVSS, BVSS, DVSS = 0V; Note 1)

Parameter		Symbol	min	max	Units
Power Supplies	Analog Digital | BVSS-DVSS | (Note 2)	AVDD DVDD GND	-0.3 -0.3 -	6.0 6.0 0.3	V V V
Input Current, Any Pin Except Supplies		IIN	-	±10	mA
Input Voltage		VIND	-0.3	DVDD+0.3	V
Ambient Temperature (powered applied)		Ta	-40	85	°C
Storage Temperature		Tstg	-65	150	°C

Notes: 1. All voltages with respect to ground.
            2. AVSS, BVSS and DVSS must be connected to the same analog ground plane.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
                 Normal operation is not guaranteed at these extremes.


Description

The AK4394 is a high performance stereo DAC for the 192kHz sampling mode of DVD-Audio including a 24bit digital filter. The AK4394 introduces the advanced multi-bit system for  modulator. This new architecture achieves the wider dynamic range, while keeping much the same superior distortion characteristics as conventional Single-Bit way. In the AK4394, the analog outputs are filtered in the analog domain by switchedcapacitor filter(SCF) with high tolerance to clock jitter. The analog outputs are full differential output, so the device is suitable for hi-end applications. The digital I/F can correspond to TTL levels, so it is easy to I/F with 3.3V logic IC.