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Atmel AVR10004: RCB256RFR2 – Hardware User Manual [APPLICATION NOTE]

6

3.2

Interface connector specification

Figure 3-2. RCB256RFR2 – interface connector drawing.

The base board interface connector, EXT0/1, mounted on the RCB, is a 50mil, 30-pin type from SAMTEC.

The detailed part number is: SFM-115-L2-S-D-LC.

The L2 in the part number indicates the low insertion force (LIF) variant to allow easy mounting.

The drawing shown in

is from a SAMTEC datasheet. Check the latest datasheet for possible updates and

changes.

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Summary of Contents for RCB256RFR2

Page 1: ...ID VW4A091786 SMA RF connector Simple user interface with button and LEDs Board information EEPROM containing MAC address Board identification features and serial number Crystal calibration values 2 A...

Page 2: ...alanced RF fan out 16 4 7 3 PCB detail 2 balun ground connection 17 4 7 4 PCB detail 3 bias DC block AC ground 17 4 7 5 PCB detail 4 analog GND routing 17 4 7 6 PCB detail 5 digital GND routing 17 4 7...

Page 3: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 3 Appendix E Revision History RCB256RFR2 PCBA 33 Appendix F Revision History 34...

Page 4: ...e system is designed to demonstrate standard based applications such as ZigBee IEEE 802 15 4 ZigBee RF4CE and 6LoWPAN as well as high data rate ISM applications The SMA antenna connector allows either...

Page 5: ...r the antenna The other mounting hole is reserved for a battery holder If battery operation is required base boards should not make use of this mount 3 1 Mechanical dimensions Figure 3 1 shows the EXT...

Page 6: ...drawing The base board interface connector EXT0 1 mounted on the RCB is a 50mil 30 pin type from SAMTEC The detailed part number is SFM 115 L2 S D LC The L2 in the part number indicates the low inser...

Page 7: ...wing in Figure 3 3 shows the connector to be used on a base board to interface the RCB EXT0 1 connectors The detailed part number is TFM 115 02 S D Alternatively a Tyco part can be used Tyco 5 104655...

Page 8: ...demonstrate a low cost manufacturing solution 4 1 Power supply The RCB is powered by a single supply voltage in the range of 1 8V to 3 6V which makes it possible to use 1 5V alkaline cells Optionally...

Page 9: ...d harmonic filter ensures sufficient harmonic rejection A 2 45GHz ISM antenna must be connected to the SMA connector for proper operation Any modification of components PCB layout or shielding may inf...

Page 10: ...eration One LED D5 signals the single chip reset state The pushbutton T1 pulls PE5 to GND and is intended to be used in combination with the internal pull up resistor When mounted on a base board I O...

Page 11: ...deviation However the 16MHz crystal is guaranteed to deviate less than 20ppm from the actual 16MHz value at room temperature without any calibration adjustment When the Cal OSC 16MHz value is applied...

Page 12: ...FF 4 6 External peripherals The RCB is equipped with two 50mil connectors EXT0 1 to mount the RCB on a variety of expansion boards base boards The connectors provide access to all spare Atmel Atmega25...

Page 13: ...ND PC2 24 GND PC3 25 PD4 PC4 26 PD5 PC5 27 PD6 PC6 28 PD7 PC7 29 GND GND 30 PG2 ALE PG2 ALE EXT1 Pin RCB256RFR2 function 1281V RCB function Pin RCB256RFR2 function 1281V RCB function 1 PB1 PB1 SCK 2 G...

Page 14: ...nteracts with the radiated electromagnetic wave Isolate digital noise from the antenna and the RF and analog radio transceiver sections to ensure maximum possible radio transceiver performance Isolate...

Page 15: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 15 Figure 4 4 RCB256RFR2 top layer design details 1 2 2 2 2 2 2 3 4 4 4 4 4 5 5 5 5 6 6 6 6 7 8 8...

Page 16: ...tional inner ground and supply planes Figure 4 6 shows the layer stack Figure 4 6 PCB layer stack 4 7 2 PCB detail 1 balanced RF fan out The radio transceiver RF ports require a small serial inductanc...

Page 17: ...pabilities The grounded pad of the capacitor is surrounded by three through holes in close proximity to ensure the lowest possible impedance The capacitor itself should be of size 0402 or smaller 4 7...

Page 18: ...on of 16MHz harmonics low Any crosstalk from digital lines into the crystal signals increases the phase noise and reduces the radio transceiver performance A grounded guard trace is placed around the...

Page 19: ...EXT0 1 Using an appropriate base board the interfaces are available as 100mil connectors to directly connect programming tools such as JTAGICE mkII The Atmel Atmega256RFR2 has the serial programming f...

Page 20: ...from RCB battery through EXT connectors Sum over all power pins together 0 5 A 7 1 7 Battery charge current AAA NiMH Accu AAA alkaline cell 3 0 5 0 A mA 7 1 8 DC voltage at RF connection 100 V 7 1 9 E...

Page 21: ...7 4 1 ILED LED on current Current per LED when driving port pin is low 3 mA 7 4 2 IEE_SLEEP ID EEPROM standby current 1 5 A Notes 1 Current consumption figures does not include microcontroller 2 Curre...

Page 22: ...unctional device HBM Human body model ISM Industrial scientific and medical ISP In system programming LNA Low noise amplifier MAC Medium access control PA Power amplifier PAN Personal area network PCB...

Page 23: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 23 Appendix A PCB design data A 1 Schematic Figure A 1 RCB256RFR2 RF section...

Page 24: ...f the TST and CLKI signal routing on RCB256RFR2 The connector mapping is visible in Figure A 4 as well as pull down resistors R8 R9 for both signals For normal operation the TST signal must be pulled...

Page 25: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 25 Figure A 3 RCB256RFR2 SOC section 2...

Page 26: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 26 Figure A 4 RCB256RFR2 I O ID EEPROM and power...

Page 27: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 27 A 2 Assembly drawing Figure A 5 RCB256RFR2 assembly drawing...

Page 28: ...de n i 1 D2 D3 D4 D5 red 4 Vishay TLMS1000 GS08 EXT0 EXT1 15 x 2 pin SFM 115 L2 S D LC 2 SAMTEC SFM 115 L2 S D LC L1 W rth74279266 1 W rth 74279266 Plug1 Plug2 AMP 2 331677 2 2 AMP 2 331677 2 Q1 Cryst...

Page 29: ...nal antenna as declared in the test report and manual The device may be integrated with other custom design antennas which OEM manufacturer must authorize following the FCC 15 21 requirements In this...

Page 30: ...ct to the European harmonized EMC and low voltage safety standards A Declaration of Conformity must be issued for each of these standards and kept on file as described in Annex II of the R TTE Directi...

Page 31: ...05 Section 15 209 Section 15 231 Section 15 247 and Section 15 249 United States 4 ETSI EN 300 328 Electromagnetic Compatibility and Radio Spectrum Matters ERM Wideband Transmission Systems Data trans...

Page 32: ...The user assumes all responsibility and liability for proper and safe handling of the goods Further the user indemnifies Atmel from all claims arising from the handling or use of the goods Due to the...

Page 33: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 33 Appendix E Revision History RCB256RFR2 PCBA Version Description A09 1786 01 Initial revision...

Page 34: ...Atmel AVR10004 RCB256RFR2 Hardware User Manual APPLICATION NOTE 42081A AVR 03 2013 34 Appendix F Revision History Doc Rev Date Comments 42081A 03 2013 Initial document release...

Page 35: ...products EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS IMPLIED OR STATUTORY WARRANTY RELA...

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