AK4112B

Features:

Supports AES/EBU, IEC958, S/PDIF, EIAJ CP1201
Low jitter Analog PLL
PLL Lock Range: 22k~108kHz
Clock Source: PLL or X'tal
4 channel Receivers input and 1 through transmission output
Auxiliary digital input
De-emphasis for 32kHz, 44.1kHz, 48kHz and 96kHz
Dedicated Detect Pins
       - Non-PCM Bit Stream Detect Pin
       - Validity Flag Detect Pin
       - 96kHz Sampling Detect Pin
       - Unlock & Parity Error Detect Pin
Supports up to 24bit Audio Data Format
Audio I/F: Master or Slave Mode
32bits Channel Status Buffer
Burst Preamble bit Pc, Pd Buffer for Non-PCM bit stream
Serial P I/F
Two Master Clock Outputs: 128fs/256fs/512fs
Operating Voltage: 2.7 to 3.6V with 5V tolerance
Small Package: 28pin VSOP
Ta: -40~85°C


Pinout




Specifications

(AVSS, DVSS=0V; Note 1)

Parameter		Symbol	min	max	Units
Power Supplies	Analog Digital Input Buffer |AVSS-DVSS| (Note 2)	AVDD DVDD TVDD GND	-0.3 -0.3 -0.3 -	4.6 4.6 6.0 0.3	V V V V
Input Current, Any Pin Except Supplies		IIN	-	±10	mA
Input Voltage (Except XTI pin) Input Voltage (XTI pin)		VIN VINX	-0.3 -0.3	TVDD+0.3 DVDD+0.3	V V
Ambient Temperature (powered applied)		Ta	-40	85	°C
Storage Temperature		Tstg	-65	150	°C

Note 1: All voltages with respect to ground.
Note 2: AVSS and DVSS must be connected to the same ground.
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 AK4112B is a digital audio receiver (DIR) compatible with 96kHz, 24bits. The channel status decoding supports both consumer and professional modes. The AK4112B can automatically detect a Non-PCM bit stream. When combined with an AK4527B multi channel codec, the two chips provide a system solution for AC-3 applications. The dedicated pins or a serial P I/F can control the mode setting. The small package, 28pin VSOP saves the board space.
*AC-3 is a trademark of Dolby Laboratories.