AK4620A

Features:

• 24-bit 2-channel ADC
         - Selectable Single-ended or Differential Input
         - High Performance Linear Phase Digital Anti-Alias Filter
               Passband: 0 ~ 20.25kHz (@fs=44.1kHz)
               Ripple: ± 0.005dB
               Stopband Attenuation: 100dB
         - S/(N+D): 92dB (single-ended)
               100dB (differential)
         - S/N: 110dB (single-ended)
               113dB (differential)
         - Digital High-pass Filter for Offset Cancellation
         - Input PGA: 0dB to +18dB, 0.5dB/step (for single-ended input)
         - Input Digital Attenuator: 0dB to 63dB, 0.5dB/step
         - Overflow Flag
         - Audio Interface Format: MSB justified or I²S
• 24-bit 2-channel DAC
         - 24-bit 8 times Oversampling Linear Phase Digital Filter
               Ripple: ±0.005dB
               Stopband Attenuation: 75dB
         - Switched-cap Low Pass Filter
         - Differential Outputs
         - S/(N+D): 100dB
         - S/N: 115dB
         - De-emphasis for 32kHz, 44.1kHz, 48kHz Sampling
         - Output Digital Attenuator: Linear 255 steps
         - Soft Mute
         - Zero Detection Function
         - Audio interface format: MSB justified, LSB justified, I²S, or DSD
• High Jitter Tolerance
• Sampling Rate: Up to 216kHz
• P Interface: 3-wire Serial Interface
• Master Clock
         - 128fs/192fs/256fs/384fs/512fs/768fs/1024fs
• Power Supply: 5V ± 5%(Analog), 3V~3.6V with 5V tolerant I/O(Digital)
• Small 30-pin VSOP package
• Ta: -10 to 70 °C


Pinout




Specifications

(AGND, DGND=0V;Note 1)

Parameter		Symbol	min	max	Units
Power Supply	Analog Digital Input Tolerant |AGND DGND| (Note 2)	VA VD VT GND	-0.3 -0.3 -0.3 -	6.0 6.0 6.0 0.3	V V V V
Input Current (any pins except for supplies)		IIN	-	±10	mA
Analog Input Voltage (Note 3)		VINA	-0.3	VA+0.3	V
Digital Input Voltage		VIND	-0.3	VT+0.3	V
Ambient Temperature (Powered applied)		Ta	-10	70	°C
Storage Temperature		Tstg	-65	150	°C

Note 1. All voltages with respect to ground.
Note 2. AGND and DGND must be connected to the same analog ground plane.
Note 3. AINL+, AINL-/NC, AINR+ and AINR-/NC pins
Note 4. P/S, MCLK, LRCK/DSDR, BICK/DCLK, SDTI/DSDL, CDTI/CKS0, CCLK/CKS1, CSN/DIF, DFS0, PDN,DEM0 and ADMODE pins.


Description

The AK4620A is a high performance 24-bit CODEC that supports up to 192kHz record and playback. The on-board analog-to-digital converter has a high dynamic range due to AKM's Enhanced Dual-Bit architecture. The DAC utilizes AKM's Advanced Multi-Bit architecture that achieves low out-of-band noise and high jitter tolerance through the use of Switched Capacitor Filter (SCF) technology. The AK4620A has an input Programmable Gain Amplifier and is ideal for Pro Audio sound cards, Digital Audio Workstations,DVD-R, hard disk, CD-R recording/playback systems, and musical instrument recording.