Summary of Contents for Shenzhen JiXinInteligence XR-50B
- Page 1 XR-50B WIFI module XR-50B User manual Version V1 Copyright ©2019 opyright © 2019 ShenzhenJiXinInteligence Co., Ltd All Rights Reserved...
- Page 2 XR-50B WIFI module This device is intended only for OEM integrators under the following conditions: The antenna must be installed such that 20 cm is maintained between the antenna and users, and This device and its antenna(s) must not be co‐located with any other transmitters except in accordance with FCC multi‐transmitter product procedures.
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Page 3: Product Overview
XR-50B WIFI module 1、Product Overview The XR-50B WiFi module was developed to meet the IOT application of speech recognition, consisting of the core processor XR872, AC107 audio CODEC , power supply and auxiliary circuit. The XR872 integrates ARM-M4F MCU and high-capacity SRAM in a smaller package with operating frequency up to 384MHz. -
Page 4: Appearance Dimensions
XR-50B WIFI module 1.1 Appearance dimensions Page 3 of 17 opyright © 2019 ShenzhenJiXinInteligence Co., Ltd All Rights Reserved... - Page 5 XR-50B WIFI module 1.2 Characteristic ◼ IEEE 802.11b/g/n, 1x1 SISO 2.4GHz ◼ Built-in ARM Cortex-M4F 32bit MCU with main frequency up to 384MHz, support RTOS ◼ Built-in 416KB SRAM , 160KB ROM and 4M PSRAM ◼ Support external Flash and eXecute In Place(XIP) ◼...
- Page 6 XR-50B WIFI module ◼ On-board DC/DC power supply module for lower power consumption 1.3 Key parameter Table1.1 Description Model XR-50B Package SMD40 Size 29*19*3(±0.2)mm Certification FCC、CE、IC、REACH、RoHS SPI Flash 32Mbit（default） Interface UART/GPIO/ADC/PWM/I2S/SPI/SDIO/DVP/PDM UART baud 9600/19200/38400/115200/921600 bps Freq. range 2400~2483.5MHz Antenna Onboard/IPEX Type 802.11b: 17±2 dBm (@11Mbps)
- Page 7 XR-50B WIFI module CCK, 1 Mbps : -96dBm CCK, 11 Mbps: -91dBm 6 Mbps (1/2 BPSK): -91dBm sensitivity 54 Mbps (3/4 64-QAM): -75dBm HT20, MCS7 (65 Mbps, 72.2 Mbps): -72dBm RX Active(MCU active, DC-DC mode):44mA TX Active(MCU active, DC-DC mode):...
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Page 8: Pin Definition
XR-50B WIFI module 2、Pin definition XR-50B has 40 pins，definitions are shown in Figure 2.1 and Table 2.2. Figure 2.1 XR-50B Pin diagram Table 2.2 Pin function description Number Name Functions UART0_TX； JTAG_TMS；PWM4/ECT4；SWD_TMS；EINTB0 UART0_RX；JTAG_TCK；PWM5/ECT5；SWD_TCK；EINTB1 Ground SPI1_MOSI ；SD_CMD； TWI1_SCL； CSI_D0；EINTA0 SPI1_MISO； SD_DATA0 ；TWI1_SDA； CSI_D1；EINTA1 SPI1_CLK ；SD_CLK ；... - Page 9 XR-50B WIFI module SPI1_CS0； SD_DATA1； CSI_D3; UART0_RX；EINTA3 PA18; TWI0_SDA; IR_TX; FEM_CTRL2; IR_RX; EINTA18 Ground SWD_TCK; JTAG_TDI; PWM7/ECT7 ;FLASH_HOLD/IO ； EINTB3 SWD_TMS; JTAG_TD0 ;PWM6/ECT6; FLASH_WP/IO2 ； EINTB2 PB16 SD_CMD;EINTB16 PB17 SD_DATA0;EINTB17 PB18 SD_CLK;EINTB18 Ground LOUTP Audio DAC output p AGND Analog ground...
- Page 10 XR-50B WIFI module MIC2+ MIC2+ MIC2- MIC2- UART1_TX;SPI1_CS2;TWI0_SDA;CSI_D7;WUPIO3;EINTA7 Ground UART1_RX;SPI1_CS1;TWI0_SCL;CSI_D6;WUPIO2;EINTA6 UART1_CTS;SD_DATA3;TWI0_SDA;CSI_D5;WUPIO1;EINTA5 UART1_RTS;SD_DATA2;TWI0_SCL;CSI_D4;WUPIO0;EINTA7 PA11 ADC_CH1;PWM3/ECT3;DMIC_DATA;CSI_VSYNC;EINTA11 PA10 ADC_CH0;PWM2/ECT2;DMIC_CLK;CSI_HSYNC;EINTA10 FEM_CTRL2;PWM1/ECT1;TWI1_SDA;CSI_MCLK;EINTA9 FEM_CTRL1;PWM0/ECT0;TWI1_SCL;CSI_PCLK;EINTA8 PA16 ADC_CH6;IR_RX ;I2S_LRCLK;UART1_RTS;EINTA16 Ground PA15 ADC_CH5;PWM7/ECT7;I2S_DO; UART1_CTS;EINTA15 PA14 ADC_CH4 ；PWM6/ECT6 ；I2S_DI ；UART1_RX;EINTA14 Reset Power supply input，2.7~5.5V Page 9 of 17 opyright © 2019 ShenzhenJiXinInteligence Co., Ltd All Rights Reserved...
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Page 11: Electrical Parameters
XR-50B WIFI module Table 2.3 Boot mode mode download Rising edge High operating Rising edge High High High Notice：PB2 and PB3 has been pulled up in module, module has self-reset function 3. Electrical parameters 3.1 Characteristic Item Conditon Min. Typ. - Page 12 XR-50B WIFI module VDD_IO=3.3V,|IOL|=7.5 -0.3 ~50 mA VDD_IO=3.3V,|IOL|=7.5 ~50 mA 3.2WiFiRF Characteristic VCC=3.3V, VDD_ANA =1.8V, XTAL=40MHz,温度=25℃ Item Min. Typ. Max. Unit Frequency 2400 2483.5 Reflection value Transmit Power CCK, 1 Mbps 17.05 17.34 CCK, 11.0 Mbps 16.62 17.07 6 Mbps OFDM 16.03...
- Page 13 XR-50B WIFI module CCK, 1 Mbps -19.78 -19.91 CCK, 11.0 Mbps -18.71 -19.12 6 Mbps OFDM -21.23 -21.77 54Mbps OFDM -21.35 -22.41 HT20, MCS0 -28.17 -28.48 HT20, MCS7 -28.86 -30.22 Receiver sensitivity CCK, 1 Mbps CCK, 11 Mbps 6 Mbps...
- Page 14 XR-50B WIFI module 3.3 Audio codec VCC=3.3V, VDD_ANA=1.8V,temperature=25℃ ,ADC performance Item Conditon Performance Min. Typ. Max. Unit Full-Scale Input Level PGAGain=0dB@THD<-40dB 1.75 Vrms SNR (A-weighted) PGA Gain=0dB THD+N (-3dBFS 1KHz input) SNR (A-weighted) PGA Gain=24dB THD+N (-3dBFS 1KHz input) SNR (A-weighted)
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Page 15: Power Dissipation
XR-50B WIFI module THD+N (-3dBFS 1KHz input) SNR (A-weighted) PGA Gain=24dB THD+N (-3dBFS 1KHz input) VCC=3.3V, VDD_ANA=1.8V, temperature=25℃ ,DAC performance Item Condition Performance Min. Typ. Max. Unit Full-Scale Output 0.856 Vrms Level RLoad=100K SNR (A-weighted) THD+N (-3dBFS 1KHz input) 3.4 Power dissipation XR872, 25℃, VCC=3.3V,VDD_ANA=1.8V, MCU 384MHz... - Page 16 XR-50B WIFI module 16dBm 218.0 OFDM HT20,M 16dBm 201.3 HT20,M 15dBm 196.0 1M DSSS 40.0 11M CCK 42.0 54M OFDM 48.5 HT20,MCS0 48.3 HT20,MCS7 48.0 STANDBY Sleep Active 17dBm 217.0 DSSS,nu ll frame RX listen 40.0 1M DSSS 32.5 DTIM1 1031.
- Page 17 XR-50B WIFI module 4. Reflow welding temperature curve 5. Typical application Page 16 of 17 opyright © 2019 ShenzhenJiXinInteligence Co., Ltd All Rights Reserved...
- Page 18 XR-50B WIFI module 6. Contact Us Address：A505 Room,Business Building,Suojia Science Park,Xixiang,Baoan District,Shenzhen Telephone：0755-23220940 Website：www.aimachip.com Page 17 of 17 opyright © 2019 ShenzhenJiXinInteligence Co., Ltd All Rights Reserved...
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