Qualcomm QCA9377 802.11ac/b/g/n 1T1R + Bluetooth 5 M.2 LGA Type 1216 Module

1. Introduction 1.1 General Introduction PIXI-9377 is a high performance 2.4 + 5GHz WLAN and Bluetooth combo module based on latestgeneration silicon (Qualcomm Atheros QCA9377). With an industrial temperature rating, broad country certifications, and the availability in different package styles, the PIXI-9377 provides significant flexibility to meet various end user application needs. The on-module chip antenna package style for the PIXI-9377 eliminates complexity for design integration, simplifies manufacturing assembly with larger pin outs, and features an advanced chip antenna that offers...

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 1.3 Product Variants The PIXI-9377 Base Module is a System in Package (SIP) module, which can be assembled into an OEM end product and is available in the following configurations. Description PIXI QCA9377 M.2 SIP Module Wi-Fi : SDIO BT : UART + PCM

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 1.4 Add-On Card Variants TechNexion offers a range of “add-on cards” for customers that want to add the PIXI-9377 in their OEM project but don’t have the freedom or technical design or manufacturing knowledge to work with SIP packages Wi-Fi : SDIO BT : UART + PCM

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 1.5 Block Diagrams Figure 1 – PIXI-9377 Block Diagram Figure 2 – CLIX-9377 Block Diagram

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 Figure 3 – STIX-M2-9377AE and STIX-M2-9377B Block Diagram Figure 4 – STIX-MPCIE-9377 Block Diagram

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 1.6 Dimensional Drawing PIXI-9377 Figure 5 – PIXI-9377 Dimensional Drawing

6.1 All power rails supplied with 3.3 V All power pins are connected to 3.3 V only include VDDIO_AO, VDDIO_XTAL, VDDIO_GPIOx. Note: All host signals are either GND or floating before WLAN_EN/BT_EN - ’high”, and after WLAN EN/BT EN = Low.

If the battery source can be removed from the end user device (battery removed, AC/DC plugged in), this is the recommended power sequence. It will avoid violating the power off sequence by allowing the 3.3 V rail to shut down after the 1.8 V rail. 1. VDDIO_GPIO voltage should match VIO voltage from the host. In some applications, VDDIO_GPIO may connected to 3.3 V upon Host VIO voltage. 2. In this case, both WLAN_EN and BT_EN on the QCA9377 are at 3.3 V due to using the VDD_AO power rail. If the host VIO voltage is 1.8 V, it must have level shifters to interface with host. 3. All host interface...

6.2.2. Without Removable Power Source If the battery source cannot be removed from the end user device, this is the recommended power sequence for this application. This sequence allows the software to control the power on/off sequence. Notes: 1. VDDIO_GPIO voltage should match VIO voltage from the host. In some applications, VDDIO_GPIO may connected to 3.3 V upon host VIO voltage. 2. Both WLAN_EN and BT_EN of QCA9377 are 1.8 V. If host VIO voltage is 1.8 V, it does not need level shifter to interface with host. 3. All host interface signals must stay floating or low before WLAN_EN/BT_EN - ’high”,...

7 Reference Schematics 7.1 PIXI-9377-S (SDIO)

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 7.3 Signal Connection Checklist while integrating PIXI-9377 While integrating the PIXI-9377 in an OEM design is straightforward. The following common design mistakes should be checked against. 7.3.1 Module Integration Considerations - Circuit Implementation It is recommended that all connection PCB (printed circuit board) traces to the power supply and digital control terminal be as short as possible. Though not necessarily required in all cases, it is a best practice to provide an optional shunt capacitor placement at the module pin...

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 7.3.4 Bluetooth PCM Audio Signal Swapping on PIXI-9377-S Designs. When using the PIXI-9277-S. The Bluetooth audio signals are connected over the PCM. Makes sure that the SOC IN signals connect to the PIXI-9377 OUT signal and vice-versa.

8. EMC Compliance certification The PIXI-9377 module has been tested and approved as a Modular Radio in accordance with the appropriate FCC, IC, ETSI, RED, TELEC and RCM standards. The supporting test data modular test report can be found on our corporate homepage download section at www.technexion.com. Since this module and its associated set of approved antennas have been certified as a Modular Radio, this allows the end user to integrate this module into an end-product without the requirement of recertifying the radio module. The module-integrator is responsible for the unintentional conducted...

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 8.2 FCC Wireless certification: New Filing vs. Permissive Change Products are continually under revision due to obsolete or unavailable parts, cost cutting, updates for a product release, and so on. The dilemma for most companies is determining the process and requirements for altered products. This section outlines the options available and highlights a few examples for guidance. Here we focus on changes for unlicensed transmitters that require an FCC Certification or Equipment Authorization. Products require “Document of Compliance”...

PIXI-9377 REV. A1. HARDWARE MANUAL – VER 1.02 – OCT 22 2019 specification sheet for cutoff frequencies).[FCC source: 178919 D01 Permissive Change Policy v04r04] Therefore, if the antenna is of a different type or higher gain, the product or radio module requires a Class II Permissive Change, and all FCC provisions of Title 47 CFR 15.203 for antenna requirements must be met. Example 2: Electrical Hardware Changes The main deciding factor for hardware changes is whether the device is “electrically equivalent.” If the device is electrically equivalent, a Class I or Class II Permissive Change is...