RN-42 Specification CONTENTS RN-42 Specification............................................................................................................................... 1 Type： Release ......................................................................................................................... 1 Document： RN-42-001................................................................................................................... 1 Version： 1.0..............................................
RN-42 Specification 4 Electrical Characteristic 4.1 Absolute Maximum ratings Rating Minimum -40℃ -40℃ -0.4 Volt Store temperature Operation temperature Power Supply Maximum +120℃ +85℃ DC 3.6Volt 4.2 Recommend operation conditions Rating Store temperature Operation temperature Power Supply Minimum -40℃ -20℃ - Type +25℃ +25℃ DC 3.3Volt Maximum +85℃ +70℃ DC 3.6Volt 4.
RN-42 Specification 4.4 Radio characteristics Parameter Sensitivity @ 0.1%BER RF Transmit Power Initial Carrier Frequency Tolerance 20dB bandwidth for modulated carrier Drift (Five slots packet) Drift Rate △f1avg Max Modulation △f2avg Min Modulation Freq. (GHz) 2.402 2.442 2.480 2.402 2.442 2.480 2.402 2.442 2.480 2.402 2.442 2.480 2.402 2.442 2.480 Bluetooth Specification Min Typ Max Units 5.0 5.0 5.0 - -80 -80 -80 6.0 6.0 6.
RN-42 Specification 5 Mechanical Dimensions Flaircomm Technologies Confidential 8
RN-42 Specification 6 Pin Definition Descriptions Flaircomm Technologies Confidential 9
RN-42 Specification Pin Name 1 2 GND SPI MOSI 3 Description Default Programming only No Connect PIO6 Set BT master (HIGH=auto-master mode) Input to RN42with weak pull down 4 PIO7 Set Baud rate (HIGH = force 9600, LOW = 115K or firmware setting) Input to RN42 with weak pull down 5 6 7 8 9 10 RESET SPI_CLK PCM_CLK PCM_SYNC PCM_IN PCM_OUT Active LOW reset Programming only PCM interface PCM interface PCM interface PCM interface Input to RN42 with 1K pull up No Connect No Connect No Connect N
RN-42 Specification 32 PIO9 IO Input to RN42 with weak pull down 33 PIO10 IO (remote DTR signal) Input to RN42 with weak pull down 34 35 PIO11 AIO1 IO (remote RTS signal ) Optional analog input Input to RN42 with weak pull down Not Used Flaircomm Technologies Confidential 11
RN-42 Specification 7 Design Concerns 7.1 Reset circuit RN-42 contains a 1k pull up to VCC, the polarity of reset on the RN42 is ACTIVE LOW. A power on reset circuit with delay is OPTIONAL on the reset pin of the module. It should only be required if the input power supply has a very slow ramp, or tends to bounce or have instability on power up. Often a microcontroller or embedded CPU IO is available to generate reset once power is stable.
RN-42 Specification 7.6 Minimizing radio interface When laying out the carrier board for the RN42 module the areas under the antenna and shielding connections should not have surface traces, GND planes, or exposed vias. (See diagram to right) For optimal radio performance the antenna end of RN42 module should protrude 5mm past any metal enclosure. 7.7 Soldering reflow profile z Lead-Free Solder Reflow z Temp: 230 degree C, 30-40 seconds, Peak 250 degree C maximum.
RN-42 Specification 9 SMT Reflow Profile 9.1 Reliability solder temperature chart: 9.
Compliance Information FCC Compliance Statement: 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. This device must accept any interference received, including interference that may cause undesired operation. Product that is a radio transmitter is labeled with FCC ID.
IC Radiation Exposure Statement for Canada This equipment complies with IC radiation exposure limits set forth for an uncontrolled enviroment. To maintain compliance with IC RF exposure compliance requirements, Please avoid direct contact to the transmitting. End users must follow the specific operating instructions for satisfying RF Exposure compliance. Caution: The device is incapable of transmitting in the band 5600-5650 MHz band in Canada.
