ATAB5823-3-B Microchip

Bill of Materials and Implementation of the Transceiver Base Station Board ATAB5823/24-x-B Transceiver The ATA5823/24 is part of Atmel s RF multichannel transceiver family dedicated to Base Station unlicensed frequency bands. This document describes the bill of materials (BOM) required to operate the Board ATA5823/24, allowing use of this RF transceiver in the popular ISM bands 315/433/868 MHz. ATAB5823-x-B/ Most of the components values are the same regardless of the frequency bands only ATAB5824-x-B the matching of the antenna and the quartz crystal should take into account the fre- quency that is targeted. This BOM relates to the implementation of our demo boards. The two-layer layout that Application Note is provided is recommended. Nevertheless, it is possible to use a different layout, which might require some minor change of values for optimal use. 1. Schematic and Layout The schematic of the demo board is illustrated in Figure 1-1 on page 2, and the layout is shown in Figure 1-2 on page 3, Figure 1-3 on page 3, Figure 1-4 on page 4 and Fig- ure 1-5 on page 4. 4948AWIRE08/06Figure 1-1. Schematic of the Transceiver Board X2 X1 1 1 C12 VREG Q1 Test2 GND C13 R2 37 24 CDEM XTAL1 DZ1 38 23 RX TX2 Test2 C14 39 22 D-Zener CS POL RXTX RX TX1 C10 21 40 PWR On DVCC ATA5823 ATA5824 20 41 NC(41) Test1 Test1 PWR 42 19 SP SETPWR NC(42) VREG C9 2 43 18 X31 VS1 SCK POL 1 C8 1 44 17 SCK PHA VS2 RXA 2 45 16 X32 C7 N PWR ON 1 AVCC 1 NPWR 46 15 RX ACTIVE NC(15) 47 14 NC(47) NC(14) 48 13 NC(48) NC(13) C16 C15 C17 L6 L7 R1 S2 BR1 BR2 SP L4 C11 1 2 7 C6 S1 C1 RXTX C2 L3 8 4 BR4 C5 L2 L5 C3 L1 BR3 C4b C4 5 6 3 C18 X4 X5 2 ATAB5823/24-x-B 4948AWIRE08/06 Q2 SAW Case GND OUTPUT INPUT OUTPUT GND INPUT GND OUTPUT GND INPUT GND Case GND RSSI VREG 1 36 NC(1) RSSI RSSI 2 35 RSSI NC(2) CS CS TEST3 CS 3 34 TEST3 NC(3) TEST3 4 33 SCK SCK RFIN SCK SDO 5 32 NC(5) SDI PWR SDI TMDI SDI 6 31 SDO 433 N868 SDO TMDO 7 30 NC(7) CLK CLK 8 29 IRQ R PWR IRQ TEST3 9 28 POUT1 PWR H POUT Test1 Test2 10 27 RFOut VSint IRQ 11 26 NC(11) NC(26) 12 25 NC(12) XTAL2