The Synaptics SYN43752 system on chip (SoC) combines a dual-band (2.4 GHz, 5 GHz) Wi-Fi 2×2 MIMO MAC/ baseband/ radio with a Bluetooth 5.3 radio to reduce the space, cost, power, complexity, and time to market of IoT devices that demand robust and seamlessly interoperable wireless connectivity.

FEATURES

• ► Supports Wi-Fi 2.4/5 with best CMOS RF, including integrated PAs and LNAs (external PA and LNA optional) with highest transmit (Tx) power level and receive (Rx) sensitivity; capable of 1024QAM over 10 meters
• ► IEEE 802.11ax compliant with support for IEEE 802.11a/b/g/n
• ► 2×2 antenna arrangement for Wi-Fi and supports third antenna for Bluetooth

• ► Integrated Bluetooth 5.3 with support for Bluetooth Low Energy (BLE)
• ► Internal Bluetooth PA supports two modes: Normal Output Power Mode (14 dBm) and High Output Power Mode (20 dBm)
• ► Synaptics Smart Co-Ex for best-in-class coexistence of Wi-Fi and Bluetooth radios in the 2.4 GHz band

SYSTEM BLOCK DIAGRAM

FEATURES

►  Supports Wi-Fi 2.4/5/6 with best CMOS RF, including integrated PAs and LNAs (external PA and LNA optional) with highest transmit (Tx) power level and receive (Rx) sensitivity; capable of 1024QAM over 10 meters
► IEEE 802.11ax compliant; legacy support for 802.11a/b/g/n; Wi-Fi 6E capable

► 2 x 2 MIMO antenna array
► LE Audio support

► Integrated Bluetooth 5.3 with support for Bluetooth Low Energy (BLE)
► Dedicated Bluetooth antenna
► Internal Bluetooth PA supports two modes: Normal Output Power Mode (14 dBm) and High Output Power Mode (20 dBm)

SYSTEM BLOCK DIAGRAM

The Astra Machina Foundation Series evaluation kit enables easy and rapid prototyping for the Synaptics SL-Series of multi-modal AI-native embedded IoT processors. A modular design supports swappable compute modules on a common I/O board, with daughter cards for integrated Wi-Fi and Bluetooth connectivity, debug, and flexible I/O.

The evaluation system supports the full range of the Synaptics SL1600 series of SoCs including the SL1680, SL1640, and SL1620. Pair this compute flexibility with a unified software experience, to optimally assess AI-enabled edge compute solutions for consumer, enterprise and industrial IoT system designs.

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The Astra Machina evaluation systems are supported by an open, Yocto Linux distribution delivered as part of
the Synaptics ESSDK, available on Synaptics Astra GitHub. With the Synaptics AI toolkit, users benefit from a
feature-rich, robust, and open, edge AI platform designed for all stages of the AI journey from beginner to advanced.

Utilize industry-standard open-source libraries and frameworks such as GStreamer and V4L2 to create video
and display pipelines. Leverage multi-TOPS Neural Processing Units (NPUs) to securely run inferencing for
a range of functions including object detection, classification, and segmentation. Work with AI-enabled
audio algorithms for far-field voice, wake words, echo cancellation, noise reduction, and voice biometrics.

Core Modules:

► Synaptics SL1680 / SL1640 / SL1620 SoCs
► Storage (eMMC 5.1), Memory (DRAM), PMIC, SD Card Slot
► HDMI Micro Rx interface
► Audio Input/Output

Daughter card interface options:
► MIPI DSI^®, MIPI CSI-2^®
► JTAG, 40-pin header
► 4-pin PoE+
►4-pin connector

The Synaptics SL-Series of embedded processors are highly integrated AI-native Linux® and Android™ systems on chip (SoCs) optimized for multi-modal consumer, enterprise, and industrial IoT workloads with hardware accelerators for edge inferencing, security, video, graphics, and audio. The SL1680 incorporates high-performance compute engines, including a quad-core Arm® Cortex®-A73 64-bit CPU subsystem, a multi-TOPS NPU, a highefficiency, feature-rich GPU for advanced graphics and AI acceleration, and multimedia accelerators for image signal processing (ISP), 4K video encode/decode, and audio.

The SL1680 supports the Synaptics Astra™ platform, delivering a unified experience combining standards-based open software frameworks, full-featured AI toolkits, and Synaptics’ best-in-class wireless connectivity portfolio.

BENEFITS

• ► Multi-modal IoT SoC lowers system cost
  ► Powerful NPU enables out-of-the-box AI
  ► Pairs with best-in-class Synaptics connectivity
  ► Enables fast time to market

APPLICATIONS

• ► Smart appliances
  ► Home security gateways
  ► Industrial control systems
  ► Signage and displays
• ► Point-of-sale systems 
  ► Scanners

► Quad-core Arm® Cortex®-A73 64-bit processor with security extensions
► DDR: 64/32-bit LPDDR4/LPDDR4x-3733 DRAM controller
► Integrated GPU for 3D/2D graphics with concurrent execution and support for general-purpose compute
► Up to 7.9+ TOPS NPU for edge inferencing
► Multi-standard video decoding with support for AV1, H.265/264 MVC, VP8, VP9, MPEG-2
► Multi-stream encoding for H.264, VP8 and simultaneous 2160p60 decode and 1080p60 encode
► Secure ISP engine
►Video, graphics post-processing, and display pipeline with Synaptics QDEO®

The Synaptics SL Series of embedded processors are highly integrated AI-native Linux® and Android™ systems on chip (SoCs) optimized for multi-modal consumer, enterprise, and industrial IoT workloads with hardware accelerators for edge inferencing, security, video, graphics, and audio. The SL1640 is a cost and power optimized secure embedded SoC with high-performance compute engines including a quad-core Arm® Cortex®-A55, 1.6+ TOPS NPU, Imagination GE9920 GPU with 90 GFLOPS 16-bit operations, Ultra HD video encode and decode pipelines, and audio DSP.

The SL1640 supports the Synaptics Astra™ platform, delivering a unified experience combining standards-based open software frameworks, full-featured AI toolkits, and Synaptics’ best-in-class wireless connectivity portfolio.

BENEFITS

• ► Multi-modal IoT SoC for cost and power sensitive designs
  ► Heterogeneous accelerators enable out-of-the-box AI
  ► Pairs with best-in-class Synaptics wireless connectivity
  ► Enables fast time to market

APPLICATIONS

• ► Smart home appliances
  ► Enterprise conferencing
  ► AI audio, display & signage
  ► Consumer & industrial control panels

► Quad-core Arm® Cortex®-A55 processor with cryptographic extensions
► DRAM controller: 32/16-bit DDR4-3200 LPDDR4/LPDDR4x-3733
► Integrated GPU for 3D/2D graphics with concurrent execution and support for general purpose compute
► 1.6+ TOPS NPU for edge inferencing
► Multi-standard video decoding with support for AV1, H.265/264 MVC, VP8, VP9, MPEG-2
► H.264 single 1080p30 8-bit encoding
► eMMC 5.1 controller
► Video, graphics post-processing and display pipeline with Synaptics QDEO®

The Synaptics SL Series of embedded processors are highly integrated AI-native Linux® and Android™ systems on chip (SoCs) optimized for multi-modal consumer, enterprise, and industrial IoT workloads with hardware accelerators for edge inferencing, security, video, graphics, and audio. The SL1620 is designed and optimized
for embedded applications that require powerful processing, advanced AI capability, and 3D graphics. This chip comes with Linux® OS, superior audio algorithms, a variety of peripherals, dual displays, companion Synaptics
SoC for connectivity and audio front end.

The SL1620 incorporates high-performance compute engines, including a quad-core Arm® Cortex®-A55 CPU subsystem, a high-efficiency, feature-rich GPU for advanced graphics and AI acceleration, superior audio algorithms, dual displays and superior audio algorithms.

BENEFITS

• ► Multi-modal IoT SoC with lower system cost
  ► Powerful GPU enabling advanced graphics and out-of-the-box AI
  ► Pairs with best-in-class Synaptics connectivity
  ► Enables fast time to market

APPLICATIONS

• ► Enterprise conferencing
  ► Home security gateways
  ► Smart speakers and soundbars
  ► Industrial control systems
  ► Signage, displays, and wearables

FEATURES

► Quad-core Arm® Cortex®-A55 processor; up to 1.9 GHz per core
► DRAM controller: 32/16-bit DDR3 /DDR3L-1866 / DDR4-2133

► Base Crypto Module (BCM) security processor
► True random number generator (TRNG)
► On-chip 32 Kbit OTP
► eMMC 5.1 controller

► Integrated GPU for 3D/2D graphics with concurrent execution and support for generalpurpose compute
► Audio processing with far-field voice, keyword detection, decompression and post-processing

► Dual-display support
► Gbit networking with IEEE 1588 support
► SPI, SDIO, UART, USB, GPIO, TDM, I2S

SYSTEM BLOCK DIAGRAM