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Interface Extension Kit[709]

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ADAU1701 Audio Digital Signal Processor Kernel Board - APM2




AA-AB11428 is the interface extension board specially designed to provide audio input and output interfaces for APM2. Taking customers’ common applications into consideration, APM3 works as a 2 x in, 3 x out extension board, suitable for audio 2.0 / 2.1 system. To maximumly satisfy different requirements of customers‘ projects, APM3 provides multiple kinds of interfaces, including 2 x RCA jacks, 1 x 3.5mm AUX IN jack, 2 x PH-4Pos connectors for audio input and 3 x RCA jacks, 1 x 3.5mm AUX IN jack and 2 x PH-4Pos connectors for audio output.

Easy for Installation and Integration

As APM3 offers multiple interfaces for audio input and output, it’s easy and simple to integrate APM2 and APM3 to your audio systems through cables connection. In addition, APM3 is in 2’’ x 2’’ compact size, the same size as APM2, making them simple to be installed in any cabinet without occupation of too much space to leave enough headroom for other components.

Package Includes

1pc AA-AA11428, Interfaces extension board

1pc PH-10Pos connection cable

  • Board TypeBoard
  • inputRCA, 3.5mm AUX, Others,
  • outputRCA, 3.5mm AUX,
  • Control InterfaceHardware
  • Size2 x 2 inches (50.8mm x 50.8mm)
  • 2 x 2 inches(50 x 50 mm) Compact PCB Size
  • 2 RCA input, 3 RCA output
  • 1 AUX input, 1 AUX output
  • 1 PH-4PIN-2MM input,
  • 1 PH-4PIN-2MM output
  • Powered by DSP kernel board
  • Suitable for audio 2.1 system



22 May 2020

Please add a "Connection" tab to show pins and layout like your other product pages.

Hi, haley. Thank you for your kind suggestion. We have added the 'Connection' to Interface Extension Kit (AA-AA11428). Wish this could help you.


05 May 2020

Hello. If I understand the product correctly, there are 2 input channels and 3 output channels. According to the datasheet, the ADAU1701 has 4 output channels. Is it at all possible to use the 4th output channel on this board?

Hello, geppa. Thank you for your interest in our products. Please kindly be noted that the APM3 is a 2-in, 3-out interface board. It provides RCA, 3.5mm headphone and line output ports. But they cannot be used at the same time. Wish this could help you.


29 Jul 2019

Does this come with the cable to connect to the DSP kernel board?

Hello, Katra. Yes, the 10pin cable for connecting with APM2 (DSP Kernel Board) is in the package of this Interface Extension Kit.

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