ISP2053 series - Dual-core Bluetooth Low Energy 5.3 Modules

Built-in Antenna - LE Audio, Direction Finding & Long Range - Multi prococol Thread / Zigbee / ANT+ / NFC

  • Low Energy tranceiver from Nordic Semiconductor nRF53
  • Bluetooth 5.2 LE Audio, Direction Finding and Long Range
  • BT Mesh, Thread, Zigbee, Matter, 802.15.4, ANT
  • NFC
  • Fully integrated RF Matching and Antenna
  • Integrated 32 MHz & 32 kHz Clocks
  • DC/DC converter with loading circuit
  • Power supply 1.7 to 5.5V
  • Extended Temperature -40 to +105 °C

     8.0 x 8.0 x 1.0 mm

Module Variants

Based on nRF5340 Nordic Semiconductor wireless SoC with two Arm® Cortex®-M33 processors and advanced feature set, the ISP2053 module is ideally suited for LE Audio, professional lighting, advanced wearables, industrial, medical, and other complex IoT applications.

Ultra-low power consumption and advanced power management enables battery lifetimes up to several years on a coin cell battery. Despite its exceedingly small size 8 x 8 x 1 mm, the module integrates decoupling capacitors, 32 MHz and 32.768 kHz crystals, load capacitors, DC-DC converters, RF matching circuit and antenna in addition to the wireless SoC. Combined with numerous Digital and Analog IOs, System Peripherals, high-speed SPI, QSPI, USB, up to 105 °C operating temperature, the ISP2053 is the most advanced fully certified 2.4 GHz low energy module available on the market.

The ISP2053 supports a large choice of wireless protocols:
- Bluetooth Low Energy Central, Peripheral, Observer and Broadcaster roles.
- Angle-of-arrival (AoA) and angle-of-departure (AoD) roles.
- LE Audio, high-throughput 2 Mbps, Advertising Extensions and Long Range.
- Mesh protocols like Bluetooth mesh, Thread and Zigbee that can be run concurrently with Bluetooth LE.
- NFC, ANT, 802.15.4 and 2.4 GHz proprietary protocols.

The ISP2053 software platform is fully compatible with the Nordic Semiconductor nRF Connect SDK, which is offering a complete solution that integrates the Zephyr RTOS, protocol stacks, application samples and hardware drivers.

The ISP2053 development kit provides a complete hardware solution for prototyping, testing and programming with the maximum flexibility.


  • Application Processor ARM Cortex M33
    1 MB Flash + 512 KB RAM (8 KB Cache)
  • Network Processor ARM Cortex M33
    256 KB Flash + 64 KB RAM (2 KB Cache)
  • Security ARM TrustZone
    & CryptoCell 312
  • Configurable 46 GPIOs including 8 ADCs
  • Digital interfaces USB, QSPI, SPI, UART, I²S, PDM, PWM
  • +3 dBm output power

Development Tools

In order to assist clients in developing their Bluetooth Smart solutions based on the ISP2053, Insight SIP offers Test Boards, proposed as stand alone PCBs, or included in Evaluation Boards which provide full hardware and software development environment. Used as stand alone solution, Test Boards also offer test points for all IOs and can be used in conjunction with Nordic Development kits and external J-Link programmers.

Evaluation Board


  • One Interface Board with integrated J-Link OB JTAG/SWD Emulator
  • One Test Board of chosen variant
    See above for module variant description
  • Cables

Ordering information

  • ISP2053-AX-EB

Test Board


  • One Test board of the chosen variant
    See above for module variant description

Ordering information

  • ISP2053-AX-TB

How to use Dev Tools

ISP2053-AX Unboxed !
Presented by Insight SiP's Sales & Marketing Director Nick Wood

Start developing your BLE Application straight out the box ! Our development kits contain an interface board, test board with module and necessary cables. Connect it together, download the tools and SDK, and start developing and running your application. Phone connectivity available via nRF Tool Box Application. It’s quick an easy to create your own application; just add sensors and firmware. No RF expertise required !

Audio Demo Board

This small audio demonstrator provides an example of the tremendous capabilities of the ISP2053 module based on nRF5340 Chip

  • Bluetooth v5.2 - 2.4GHz low energy RF Transceiver
  • Based on Insight SiP 2053-AX Module
  • Audio codec
  • Programmable buttons and LEDs
  • USB port interface
  • Power supply on coin cell battery CR2032 or with USB interface
  • Overall Size 40 x 40 mm²

Ordering information

  • ISP2080

Audio Demo Kit


  • 2 ISP2080 Audio Demo Boards
  • Cables
  • Headset and Gateway related firmware

Ordering information

  • ISP2080-DK

How to use Audio Dev Tools

BLE Audio Demo
Presented by Insight SiP's Sales & Marketing Director Nick Wood

This video gives an overview of BLE Audio covering what it is, what are the key enhancements to the BLE specification and other elements that enable it.

It then describes the Insight SIP Audio Demo Board and show Insight SIP's BLE Audio demo in action, using two our ISP2053 modules, based on Nordic's nRF5340



Data Sheets

     ISP2053 Module
     ISP2053 Development Board
     ISP2080 Audio Demo Board

Application Notes

     Use of ISP2053 Development Board
     Use of ISP2080 Audio Demo Board
     Current Measurement with Development Board
     Test Board Connection to Nordic Semi Dev Kit
     ISP2053 Long Range Demo
     Use of the Power Profiler Kit 2

Product Change & Anomaly Notices


Hardware and Firmware Libraries

     ISP2053 Altium Module Description
     ISP2053 Eagle Module Description
     3D Drawing Step File


     ISP2053 Test Board Rev A
     ISP2053 Test Board Rev B

Gerber Files

     ISP2053 Test Board

Related Information & Products



Short Range & Low Energy


Short Range & Low Energy


Low Power Wide Area network




Insight SiP
GreenSide, Bat.7, Entree2,
400 Avenue Roumanille, BP 309
F-06906 Sophia–Antipolis FRANCE

Phone: +33 (0) 493 008 880

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