ShangHai Ehong Technology Co.,Ltd. QCA4020 Module (WL501) Product Specification WL501 October 31, 2018 Ehong is a trademark of Ehong Solutions, registered in the United States and other countries. Other product and brand names may be trademarks or registered trademarks of their respective owners. This technical data may be subject to U.S. and international export, re-export, or transfer ( export and international law is strictly prohibited. ) laws. Diversion contrary to U.S.
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Revision history Revision Date A October 2018 Ehong Confidential Description Initial release 3
Contents 1 Introduction............................................................................................................................. ................ 5 2 Hardware specification......................................................................................................................... 7 2.1 WL501 module pinout................................................................................................................................................ 2.2 WL501 interface summary.
1 Introduction The WL501 module provides a highly-integrated and flexible platform for developing and evaluating products and applications based on the QCA4020 SoC. The WL501 module can be either used with CDB20 development kit for software development or incorporated into OEM products to enable rapid deployment of Wi-Fi connected systems. The WL501 module includes the following components: ■ QCA4020 chip (WLAN/BLE/15.4) ■ A printed antenna ■ 32 Mb NOR flash memory The QCA4020 is a dual band 1x1 802.
QCA4020 Module (WL501) Product Specification Hardware specification WL501 module features ■ Dual-Band IEEE 802.11 a/b/g/n, single stream 1x1 ■ BLE 5.0 ■ ZigBee 802.15.4 ■ Green Tx power saving mode ■ Low -power listen mode ■ Four-layer PCB design ■ Rich set of GPIO(s) and interfaces: I2C, HSUART, UART, SPI, QSPI, SDIO 2.0, I2S, JTAG, Sensor ADC (up to 8 channels, 12bit, 1Msps). Up to 8 PWM optimized for LED lighting applications.
QCA4020 Module (WL501) Product Specification 2 Hardware specification Hardware specification 2.
QCA4020 Module (WL501) Product Specification Hardware specification Figure 2-3 WL501 pinout definition Ehong Confidential 8
QCA4020 Module (WL501) Product Specification Hardware specification Table 2-1 WL501 module non-GPIO pinout definition Pin # Pin Name Description Power 2-4 VBATT_BE 3.
QCA4020 Module (WL501) Product Specification Hardware specification Pin # Pin Name Description 27 SENSEADC_0_BE 12bit ADC, ADC 0 input 24 SENSEADC_1_BE 12bit ADC, ADC 1 input 37 CHIP_PWD_L_BE BLE/802.15.
QCA4020 Module (WL501) Product Specification Pin # 54 52 55 Pin Name GPIO1 3_BE GPIO1 4_BE GPIO1 5_BE Primary Functio n 51 GPIO1 7_BE SPI0_CS 1_N 16 GPIO1 8_BE GPIO_18 11 GPIO1 9_BE GPIO_19 15 GPIO2 0_BE GPIO_20 19 GPIO2 1_BE GPIO_21 26 GPIO2 2_BE GPIO_22 21 GPIO2 3_BE GPIO_23 29 GPIO2 4_BE GPIO_24 31 GPIO2 5_BE GPIO_25 28 GPIO2 6_BE GPIO_26 30 GPIO2 7_BE GPIO_27 48 50 Ehong Confidential UART JTAG GPIO_28 GPIO_29 GPIO_30 GPIO_31 PWMADC or SenseADC PTA Codec pwm_o
QCA4020 Module (WL501) Product Specification Pin # Pin Name Primary Functio n 49 GPIO3 2_BE GPIO_32 10 GPIO3 3_BE 80 57 64 GPIO4 1_BE GPIO4 8_BE GPIO4 9_BE GPIO_50 63 GPIO5 1_BE GPIO_51 62 GPIO5 2_BE GPIO_52 20 18 12 9 SD Memory Card UART JTAG PWMADC or SenseADC PTA Codec I2S_MC LK GPIO_49 GPIO5 0_BE 25 SDIO CHIP_P WD_L_ WL PWR_ST ATUS Ext_32K _IN 78 60 SPI or I2C or QSPI Hardware specification GPIO5 3_BE GPIO5 4_BE GPIO5 5_BE GPIO5 6_BE GPIO5 7_BE GPIO5 8_BE JTAG3_ BE_TC
QCA4020 Module (WL501) Product Specification ■ 1x I2S ■ 1x JTAG ■ 1x ADC Sense ■ 1x USB2.0 interface ■ 1x SPI Interface Hardware specification 2.3 Bootstrap signals Table 2-3 Bootstrap mode GPIO9_BE GPIO22_BE 0 0 0 1 Description Force M4 to load image from flash memory (Default) Force M4 to boot in EDL (Emergency Download Mode).
QCA4020 Module (WL501) Product Specification Hardware specification Table 2-7 DC electrical characteristics for digital I/Os Symbol Parameter Conditions Min Typ Max Unit VIH High level I voltage – 2.4 – 3.6 V VIL Low level I voltage – -0.3 – 0.3 V VOH High level O voltage – 3.0 – 3.3 V VOL Low level O voltage – -0.3 – 0.4 V 2.4.2 WL501 2.4 GHz power measurements Table 2-8 2.4 GHz power measurements at antenna port at 25 C, 3.
QCA4020 Module (WL501) Product Specification Hardware specification 2.4.4 BLE power measurements Table 2-10 BLE power measurements at antenna port at 25 C, 3.3V nominal with external PA Parameter Tx Power Rx Sensitivity Description Typical Unit BT LE 1M 2.10 dBm BT LE 2M 1.11 dBm BT LE 1M -93 dBm BT LE 2M -93 dBm 2.4.5 802.15.4 power measurements Table 2-11 802.15.4 power measurements at antenna port at 25 C, 3.
3 Mechanical interface specification 3.
QCA4020 Module (WL501) Product Specification Mechanical interface specification Figure 3-2 WL501 module pinout dimensions (in mm) Ehong Confidential 17
QCA4020 Module (WL501) Product Specification Mechanical interface specification Figure 3-3 WL501 module pinout dimensions-Detail B (in mm) Ehong Confidential 18
FCC Statement: Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Revision History OEM Guidance 1. Applicable FCC rules This device complies with part 15.247/15.407 of the FCC Rules. 2. The specific operational use conditions This module can be used in IoT devices. The input voltage to the module is nominally 3.3 V DC. The operational ambient temperature of the module is 0 °C ~ 85 °C. the embedded PCB antenna is allowed. Any other external antenna is prohibited. 3. Limited module procedures N/A 4. Trace antenna design N/A 5.
6. Antenna Antenna type: PCB antenna Peak gain : 1.0dBi 7. Label and compliance information An exterior label on OEM’s end product can use wording such as the following: “Contains Transmitter Module FCC ID: 2ACCRWL501” or “Contains FCC ID: 2ACCRWL501” 8.
