Ambiq Apollo4 Blue Plus System-on-Chip

Ambiq Apollo4 Blue Plus System-on-Chip extends the Apollo4 Plus product family with low-power BLUETOOTH® Low Energy 5.1. The Apollo4 Blue Plus System-on-Chip allows next-generation wearables and smart device designers to create more stunning user interface (Ul) effects and overall user experience. The SoC is engineered upon Ambiq’s proprietary Subthreshold Power-Optimized Technology (SPOT”) platform. The complete hardware and software solution of the Apollo4 Blue Plus allows wireless battery-powered endpoint devices to reach a higher level of intelligence without sacrificing battery life.

The Ambiq Apollo4 Blue Plus includes a 32-bit Arm® Cortex®-M4 core with a Floating Point Unit (FPU) and a BLUETOOTH Low Energy 5.1 radio. There are two variants in BGA packages. The AMA4BKP-KBR is pin-compatible with the Apollo4 Blue AMA4BKK-KBR for easy migration. The AMA4BKP-KXR includes a HexSPI interface for faster access to PSRAM or other external memory for richer graphics. With up to 2MB of MRAM and 2.75MB of SRAM, the Apollo4 Blue Plus has enough computing and storage to handle complex algorithms and neural networks while displaying vibrant, crystal-clear, and smooth graphics. External memory is supported through Ambiq’s high bandwidth multi-bit SPI and eMMC interfaces if additional memory is required.

The Apollo4 Blue Plus is purpose-built to serve as an application processor and a coprocessor for battery-powered endpoint devices. These devices include smartwatches, children’s watches, fitness bands, far-field voice remotes, animal trackers, predictive health and maintenance, and the smart home.

Features

Ultra-low supply current
- 4µA/MHz active mode current
- Low-power sleep and deep sleep modes with selectable levels of RAM/cache retention
High-performance Arm Cortex-M4 Processor with FPU:
- 96MHz/192MHz operating modes, Secure boot
- Floating Point Unit (FPU), Memory Protection Unit (MPU)
BLUETOOTH Low Energy 5.11
- Data rates of 1Mbps and 2Mbps
- Extended advertising packets
- Angle of Arrival (AoA) and Angle of Departure (AoD)
- Tx output power of -10dBm to +6dBm
- Rx sensitivity of -95.5dBm at 1Mbps, -92dBm at 2Mbps
Ultra-low-power interface for off-chip sensors
- 8-bit, 10-bit, and 12-bit ADC modes, 11x selectable channels
- Up to 2.8MS/s sampling rate (8-bit mode)
- Temperature sensor with ±3°C accuracy
Ultra-low-power flexible serial peripherals
- 2x QSPI/OSPI (KBR package)
- 2x QSPI/OSPI; 1x QSPI/OSPI/HexSPI (KXR package)
- 7x I²C/SPI masters for peripheral communication
- I²C/SPI slave for host communications
- 4x UART modules with flow control
- USB 2.0 HS/FS device controller
- SDIO (SD3.0)/eMMC (v4.51)

Ultra-low-power memory
- Up to 2MB of non-volatile memory (NVM) for code/data
- Up to 2.75MB of low-power RAM for code/data
Display
- MIPI DSI 1.2 with single data lane up to 500Mbps
- Up to 500 x 500 resolution
- 4-layers with full alpha blending
- Frame buffer decompression
Graphics
- 2D/2.5D graphics accelerator
- Texture and frame buffer compression
- Anti-aliasing/dithering/vector graphics processing
Audio processing
- Stereo low-power analog microphones
- 4x stereo digital microphones (2x on KXR pkg)
- 2x full duplex I²S ports with ASRC
Rich set of clock sources
- 32MHz and 32.768kHz crystal oscillators
- 1kHz low-frequency RC oscillator
- 2x high-frequency RC oscillators – 192MHz/384MHz
Power management
- Operating voltage of 1.71V to 2.2V
- Temperature range from -20°C to +60°C
- SIMO buck/BLE buck
- Multiple I/O voltages supported
4.7mm x 4.7mm, 12 x 12 BGA (131-pins/81GPIO)

Applications

Smartwatches/bands
Wireless sensors and IoT
Activity and fitness monitors
Consumer electronics

Motion and tracking devices
Home automation
Security and alarm systems
Consumer medical devices

Ambiq Apollo4 Blue Plus System-on-Chip

Features

Applications

Block Diagram

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