Sure Electronics JAB5

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Summary

What is JAB5?

JAB5 Overview and Applications

JAB5 is a four-channel audio amplifier board with Bluetooth 5.0 and ADAU1701 DSP, offering 100W per channel.

JAB5 Features and Modes

JAB5 Modes and Cascading Capabilities

Details JAB5's modes (4.0, 2.1, 2.0), cascading, and key features like Bluetooth 5.0, DSP, and I2S support.

Connection Diagram: Input;Output

Speaker Output Configuration

JAB5 supports BTL and PBTL modes for speaker output, allowing doubled output power.

Power Supply and Audio Input Connections

Details connections for power supply (DC10V-39V) and audio inputs (BT, I2S, Line).

Audio Output and LED Indicators

Explains stereo speaker output terminals and status LEDs for Bluetooth and signal detection.

Connection Diagram: Control Interfaces

Control Synchronization and Standby Ports

Covers ports for synchronization, standby control, and Bluetooth pairing cancellation.

External Potentiometer Connections

Details connections for external potentiometers used for hardware control.

Power Supply Requirements

Recommended Power Supply Specifications

Details suggested power supply (350W, DC36V) and connection interface (Molex MiniFit).

Audio Input Overview

Mixed Audio Input Capabilities

JAB5 supports BT 5.0, I2S, and analog line inputs, with all signals being mixed.

Bluetooth Input Details

Bluetooth 5.0 Module and Codecs Support

Explains Bluetooth 5.0 module, supported codecs (aptX HD, SBC, AAC), and built-in antenna.

Digital and Analog Input Connections

I2 S Input Port (J6)

Details connecting digital input via I2S to J6.

Analog Line Input Port (J5)

Details connecting 3.5mm AUX input to J5.

Audio Output Configuration

Stereo Speaker Output Modes

Details speaker output configurations for 4x100W, 2.0 (2x200W), and 2.1 (2x100W+1x200W) modes.

I2 S Output Functionality

Cascading JAB5 Units via I2 S Output

Describes I2S output for cascading JAB5 units to create an 8x100W system.

I2 S Output Mode Selection

Master;Slave Mode Setting via SW1

Explains how to set master or slave mode using the SW1 switch for I2S output.

LED Indicator Status

Bluetooth LED Indicator Function

Shows Bluetooth pairing status (ON when paired, BLINK when searching).

Signal Detection LED Indicator Function

Indicates signal presence (ON when signal detected, OFF when not).

Control: System Programming

DSP Programming and Customization Methods

Details programming options via PC UI, SigmaStudio, or Bluetooth LE for audio customization.

Control: Synchronization and Standby Ports

Control Synchronization Port for Cascading (J10)

Describes the synchronization port for consistent control logic and POP noise reduction in cascaded systems.

Standby Control Port (J11) Introduction

Introduces the J11 port for easy control of audio system standby mode.

Control: Standby Mode Operation

Activating Standby Mode via J11

Explains how to use J11 for standby control; short circuit enters standby, open leaves it operational.

Control: Bluetooth Pairing

Bluetooth Pairing Cancellation Procedure

Details how to cancel Bluetooth pairing by short-circuiting port J4.

Control: External Potentiometers

External Potentiometer Functions (POT1-POT4)

Lists functions of POT1-POT4 for gain and filter control of power stage channels.

Control: Hardware Frequency Settings

Hardware Control of Filter Frequency Ranges

Specifies frequency ranges for High-pass and Band-pass filters in different modes via hardware control.

Overview

Key Features and Technical Specifications
Usage Features
Maintenance Features

The JAB5 is a four-channel audio amplifier board designed for various audio applications, integrating high-performance Bluetooth 5.0 (supporting APT-X HD) and ADAU1701 DSP. It delivers 100W per channel into a 6Ohm load. The board features a signal level sensor system and power management system, ensuring low power consumption and high efficiency.

Key Features and Technical Specifications:

Audio Output Modes: Supports 4.0 mode (4 x 100W), 2.1 mode (2 x 100W + 1 x 200W), and 2.0 mode (2 x 200W). The switching between these modes is achieved through automatic cable identification.
Cascading Capability: JAB5 can be cascaded with another JAB5 unit via the I2S output port to create an 8 x 100W or other multi-channel audio systems.
Integrated Components: Features Qualcomm/CSR QCC 3034, Bluetooth V5.0 with aptX HD, and ADAU1701 DSP.
Audio Inputs: Supports Bluetooth input, line input (3.5mm AUX IN), and I2S input. All input signals are mixed and delivered to the speaker output.
Power Supply: Requires a DC10V-39V power supply, with a suggested power of 350W, DC36V, and a current higher than 4A. The terminal interface for power supply is Molex MiniFit-2x2Pos-4.2mm. A power supply cable is included as a standard accessory.
Speaker Output: Supports BTL (Bridge-Tied Load) and PBTL (Parallel Bridge-Tied Load) modes. Each two channels can be configured as one channel with doubled output power. The switching of the output mode is based on cable identification. The terminal blocks for speaker output are Molex-MiniFit-2x3Pos-4.2mm, and two speaker cables are provided.
I2S Output: Provides I2S output for transmitting audio to another I2S amplifier board, enabling cascading.
Bluetooth Module: Integrated Bluetooth 5.0 module supports various audio formats including apt-X, aptX HD, apt-X LL, SBC, and AAC. It has a built-in Bluetooth antenna for easy connection.
DSP Programming: Allows programming of the DSP through SigmaStudio or remote control via an APP or PC UI, using an ICP5 or higher version connection.
External Potentiometers: Four ports are provided for external potentiometers to control volume, gain, and frequency.
- POT4: Gain of power stage channel 1
- POT3: High-pass filter / Bandpass filter of power stage channel 1
- POT2: High-pass filter / Bandpass filter of power stage channel 2
- POT1: Gain of power stage channel 2
Frequency Range (Hardware Control):
- High-pass Filter (4.0 / 2.0 Mode): 20Hz-2kHz
- High-pass Filter (2.0 Mode): 250Hz-2kHz
- Band-pass Filter: 60Hz-120Hz (High-pass), 200Hz-400Hz (Low-pass)
LED Indicators:
- Bluetooth indicator (J1): ON when paired, BLINK when searching.
- Signal detection indicator (J12): ON when signal is detected, OFF when no signal is detected.

Usage Features:

Versatile Applications: Suitable for home audio, DIY audio, Bluetooth speakers, and digital crossover applications.
Mode Switching: Automatic cable identification simplifies switching between 4.0, 2.1, and 2.0 modes.
DSP Customization: Users can adjust audio parameters through PC UI, SigmaStudio, or Bluetooth LE control to customize their audio experience.
Master/Slave Configuration: A switch on the board allows setting JAB5 as master or slave mode when using I2S output for cascading.
Standby Control: J11 port provides standby control; short-circuiting J11 puts JAB5 into standby mode, while leaving it open allows normal operation.
Bluetooth Pairing Cancellation: J4 port allows cancellation of Bluetooth pairing by short-circuiting it (pressing a button).

Maintenance Features:

Cables Kit: Functional Cables Kit provides necessary cables for I2S input (PH-6Pos), analog line input (3.5mm AUX IN), IPX to SMA conversion cable and external antenna for Bluetooth, Bluetooth pairing cancellation cable with a button, PH-3Pos cable for control synchronization, PH-2Pos cable for standby control, and cables for external potentiometers.
Troubleshooting: Power supply outside the recommended range may cause damage to the amplifier board.
Support: For functions of potentiometers in other applications, contact store@sure-electronics.com. For on-board potentiometers, a MOQ of 500pcs is required.
Documentation: Detailed definitions for J1, J12, and J11 are available in the data sheet. SigmaStudio source code is provided for downloading to customize frequency range (APP Control works only with default firmware).