A71C03AUF/Q

A7103A 315M/434MHz ASK/FSK Transceiver Document Title A7103A Data Sheet, 315MHz / 434MHz ASK Transceiver with 1~10Kbps data rate , 315MHz / 434MHz FSK Transceiver with 1~20Kbps data rate Revision History Rev. No. History Issue Date 0.0 Initial Issue 2007/7/19 0.1 Modify specifications 2007/9/21 0.2 Modify Logo and title 2007/10/5 0.3 Modify register setting 2008/2/27 0.4 Modify register setting for TX power control and Xtal start up time description 2008/3/28 0.5 Add top marking info., reflow profile, Carry tape & reel dimensions. Add hardware control mode description 2008/9/14 0.6 Modify ordering information 2008/11/4 0.7 Add look-up-table of setting of TRx frequency. 2009/01/14 Remark Add look-up-table in HW control and SPI control mode. Add look-up-table of frequency deviation in FSK modulation. Add RX sensitivity vs different IF BW filter. Add RX sensitivity at BER < 1E-2. Add Preamble format. Modify A7103B’s IF BW = mid. in HW control mode. Rename Off mode to Shut-down mode. Remove constrain of Vdd = 3.3 V operation. 0.8 Separate A7103A / A7103B datasheet. 2010/Jan Remove CKO pin / Remove CKO function. Remove programmable IF Filter, fix IFBW = mid only. Modify RC filters in front of VDD_A and VDD_D. ASK data rate 1K ~ 10Kbps, 2,2V ~ 3,0V operation range. 1.0 Add HW control mode schematic. 2010/Nov. Full Production Add Note 2 in Table 9.5.3 for FSK modulation. 1.1 Update RF range of (310M ~ 318MHz) 2011/July Full Production 1.2 Modify the tape reel information and add Shenzhen office address. 2011/July Full Production Important Notice: AMICCOM reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice. AMICCOM integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in lifesupport applications, devices or systems or other critical applications. Use of AMICCOM products in such applications is understood to be fully at the risk of the customer. July 2011, Version 1.2 AMICCOM Electronics Corporation A7103A 315M/434MHz ASK/FSK Transceiver Table of Content 1. 2. 3. 4. 5. 6. 7. 8. 9. General Description ......................................................................................................................................................... 3 Typical Applications ......................................................................................................................................................... 3 Features .......................................................................................................................................................................... 3 Block Diagram ................................................................................................................................................................. 4 Pin Configuration ............................................................................................................................................................. 5 Absolute Maximum Ratings.............................................................................................................................................. 5 Pin Description................................................................................................................................................................. 6 Specification .................................................................................................................................................................... 7 Circuit Description............................................................................................................................................................ 9 9.1 Functional Block...................................................................................................................................................... 9 9.2 Data Filter and Data Slicer .....................................................................................................................................10 9.3 HW Control Mode...................................................................................................................................................11 9.4 SPI Control Mode...................................................................................................................................................12 9.4.1 SPI timing ...........................................................................................................................................................12 9.4.2 Register 0 (Address: 11)......................................................................................................................................13 9.4.3 Register 1 (Address: 01)......................................................................................................................................14 9.5 Start-up Sequence..................................................................................................................................................15 9.6 Preamble Format ...................................................................................................................................................18 9.7 RSSI ......................................................................................................................................................................19 9.8 RX_DATA Duty Cycle and Sensitivity .....................................................................................................................19 9.9 TX Data Shaping....................................................................................................................................................21 9.10 TX Spurious Emission ..........................................................................................................................................22 9.11 Matching for sensitivity .........................................................................................................................................25 9.12 Interference and Blocking Performance ................................................................................................................26 10. Application Circuit .........................................................................................................................................................28 10.1 SPI Control Mode for ASK (i.e. 433.92MHz)..........................................................................................................28 10.2 SPI Control Mode for FSK (i.e. 433.92MHz)..........................................................................................................28 10.3 HW Control Mode for ASK (i.e. 433.92MHz) .........................................................................................................29 10.4 HW Control Mode for FSK (i.e. 433.92MHz) .........................................................................................................30 10.5 Reference Layout of MD7103A-A41 (i.e. 433.92MHz) ...........................................................................................31 11. Abbreviations ................................................................................................................................................................32 12. Ordering Information .....................................................................................................................................................32 13. Package Information .....................................................................................................................................................33 14. Top Marking Information ...............................................................................................................................................34 15. Reflow Profile................................................................................................................................................................35 16. Tape Reel Information...................................................................................................................................................36 17 Product Status ...............................................................................................................................................................38 July 2011, Version 1.2 2 AMICCOM Electronics Corporation A7103A 315M/434MHz ASK/FSK Transceiver 1. General Description A7103A is a very easy-to-use CMOS RF transceiver for sub 1GHz license free ISM band (315/434MHz). It is a FSK/ASK single chip RF transceiver with high sensitivity receiver (-110dBm @ 2.4Kbps, 433.92MHz ASK, -106dBm @ 2.4Kbps, 433.92MHz FSK) as well as 4-steps programmable power amplifier (max. 10dBm @ 315 / 434MHz). This device integrates a double balanced image reject mixer, low IF frequency (424KHz) architecture, IF filter, I/Q limiter with RSSI generation, as well as a fully VCO and PLL synthesizer. A7103A's carrier frequency FRF is determined by the frequency of the reference Xtal FXTAL. The integer-N PLL synthesizer ensures that each RF value, ranging from 310 MHz to 318 MHz and 420 MHz to 447 MHz with PLL steps of 848KHz, can be achieved. This is done by using a Xtal as a reference frequency according to: FRF = FXTAL x N / 2R, where N is the PLL feedback divider ratio and R is Xtal divider to support 13.5732MHz crystal. Besides, A7103A supports AIF (Auto IF) function, user has no need to consider IF offset between TX and RX, but, use this formula ( FRF = FXTAL x N / 2R ) directly to calculate radio frequency in both TX and RX site. A7103A supports ASK data rate from 1K to 10Kbps and FSK from 1K to 20Kbps which is determined via external capacitors applied on data filter and data slicer. In FSK modulation, this device’s Fdev (frequency deviation) is controlled by Xtal detuning of series an external capacitor (typical 75pF for ± 12.5KHz ). However, this capacitor is not necessary in ASK modulation. For easy-to-use, A7103A has only two control registers, register 0 and 1. MCU can configure two registers via 3-wire SPI bus. In addition to SPI control mode, A7103A has a special mode called HW control mode. In HW control mode, user just needs to apply pin settings. Then radio control is done (register 0 and register 1 are in default values). No matter HW or SPI control mode, A7103A is very easy to use by a low cost MCU or encoder/decoder. Those features are all integrated in a small SSOP 24 pins package. For packet handling, there is no FIFO inside A7103A. Hence, in TX mode, MCU or Encoder just delivers the defined packet (preamble + sync word + payload) to TX_DATA pin. Then, in RX mode, MCU or Decoder can receive the packet (preamble + sync word + payload) from RX_DATA pin. Be aware that A7103A needs different preamble formats between ASK and FSK in order to get the best RX sensitivity. 2. Typical Applications n n n n Remote Control. Alarm and Security System. Smart Energy Management. AMR (Auto Meter Reading) ■ ■ ■ ■ Wireless Toys. RKE (Remote Keyless Entry). Garage Door Opener. Home Automation. 3. Features n n n n n n n n n n n n n n n n n FSK Operating range: VDD=2,2~3,3V. T=-40~+85℃. ASK Operating range: VDD=2,2~3,0V. T=-40~+85℃. Easy to use n HW or 3-wire SPI control mode selection. n HW control mode (no need MCU for radio control, default max TX power). n Auto calibration. n Auto start-up sequence, XtalàAuto CalibrationàPLLà RX / TX. TX current 18mA (FSK, 10dBm) / 11mA (ASK, 10dBm, 50% duty cycle). RX current 9mA (FSK and ASK). Shut down mode current 0,5 uA. Two stages PA in class-C, 4-steps programmable TX Power : 2 / 5 / 8 / 10 dBm. High ASK RX sensitivity down to – 110 dBm at BER