Related Manuals for Ehong EH-MA41
Summary of Contents for Ehong EH-MA41
- Page 1 Bluetooth Transmit Data Module User Manual EH-MA41 Brand Name:Ehong FCC ID:2ACCRMA41 Shanghai Ehong Technologies Inc...
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Page 2: I 2 C Master Interface
Bluetooth Transmit Data Module Description: Features: Bluetooth V3.0 EH-MA41 is a class 2 Bluetooth® TX power +5.18dbm, / -84dBm RX module. It is a highly integrated and sensitivity sophisticated module which contains all the necessary elements from radio to Onboard Meander line PCB antenna ... -
Page 3: Pinout And Terminal Description
Bluetooth Transmit Data Module 1. EH-MA41 Product numbering EH-MA41-X-V1.0 ------------- Company Name(EHong) MA41 ------------ Module Name ------------ N (no) ------------ Hardware revision 2. Pinout and Terminal Description 2.1. Pin Configuration Pinout of EH-MA41 Figure 1： Symbol I/O Type Description AIO1... - Page 4 CMOS output, tristate, with UART_TXD UART data output weak internal pull-up CMOS output, tri-state, with UART_RTS UART request to send active low weak internal pull-up CMOS input with weak UART_CTS UART clear to send active low internal pull-down Shanghai Ehong Technologies Inc...
- Page 5 CMOS input with weak Chip select for Synchronous Serial SPI_CSB internal pull-up Interface active low CMOS output, tri-state, with SPI_MISO Serial Peripheral Interface data output weak internal pull-down AIO0 Bi-directional Programmable input/output line PIN Terminal Description Table 1： Shanghai Ehong Technologies Inc...
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Page 6: Power Supply
SPI_MISO Tristated with weak pull-down RESETB Input with weak pull-up Table 7: Pin Status on Reset Antenna The module integrates a Meander line PCB chip antenna so there’s no need to use antenna on customer’s PCB. Shanghai Ehong Technologies Inc... - Page 7 Bluetooth Transmit Data Module 6. PIO EH-MA41 has a total of 10 digital programmable I/O terminals. They are powered from VDD (3.3V). Their functions depend on firmware running on the device. PIO lines can be configured through software to have either weak or strong pull-ups or pull-downs.
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Page 8: Spi Interface
512kHz. When configured as PCM interface slave, it can operate with an input clock up to 2048kHz. The module is compatible with a variety of clock formats, including Long Frame Sync, Short Frame Sync and GCI timing environments. Shanghai Ehong Technologies Inc... - Page 9 PCM Interface Master When PCM is configured as a master, the module generates PCM_CLK and PCM_SYNC. Figure 3: Configured PCM as a Master When PCM is configured as the slave, the module accepts PCM_CLK rates up to 2048kHz. Shanghai Ehong Technologies Inc...
- Page 10 The module has an internal USB pull-up resistor. This pulls the USB_DP pin weakly high when module is ready to enumerate. It signals to the USB master that it is a full speed (12Mbit/s) USB device. Shanghai Ehong Technologies Inc...
- Page 11 "Attention ‐ Limited Modular Approval This RF Module is strictly limited to integration into battery-poerated host devices. Integration into devices that are directly or indirectly connected to AC lines may be added via Class II Permissive Change." (OEM) Integrator has to assure compliance of the entire end‐ product incl.
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