Preliminary 433 MHz FSK Transceiver A708 module specification -08 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.
Revision History Rev. History Issue Date Remark 0. Initial issue -08 June, 0 Preliminary
Table of Contents. General Description..... 3. Electrical Specification. 3 3. Interface.... 4 4. Application Circuit.. 5 5. Reference Layout. 6 6. Bill of Material. 7
General Description The -08 module is designed for low cost 433MHz ISM band wireless applications using AMICCOM A708 FSK transceiver. This module features a fully programmable frequency synthesizer by SPI. The maximum data rate is 50kbps. Electrical specification Item Specification Remark Supply voltage.0v~3.6v 0.uA @Deep Sleep mode.0ua @Sleep mode 0.5mA @Idle mode.5ma @Stand-by mode 8.5mA @PLL mode 4.5mA @Rx mode(agc ON) Current consumption 6mA @Tx mode (-dbm,tbg=0, TDC=0, PAC=0) 0mA @Tx mode (dbm,tbg=, TDC=0, PAC=0) ma @Tx mode (5dBm,TBG=, TDC=0, PAC=0) Typical +3.3V, 5 * 30mA @Tx mode (0dBm,TBG=3, TDC=0, PAC=0) 39mA @Tx mode (3dBm,TBG=4, TDC=0, PAC=0) 48mA @Tx mode (5dBm,TBG=5, TDC=0, PAC=0) 55mA @Tx mode (6dBm,TBG=6, TDC=0, PAC=0) 70mA @Tx mode (7dBm,TBG=7, TDC=, PAC=) 78mA @Tx mode (7.5dBm,TBG=7, TDC=3, PAC=3) Frequency 433.9 MHz ISM band Transmit output power Rx sensitivity Modulation Interface Dimension 7.5 dbm (TBG=7, TDC=, PAC=) 3.5 dbm (Pass CE) -7 dbm @ Kbps mode, Dev = 8 KHz, IFBW=50KHz -4 dbm @ Kbps mode, Dev = 8 KHz, IFBW=00KHz -4 dbm @ 0 Kbps mode, Dev = 8.75 KHz, IFBW=50KHz - dbm @ 0 Kbps mode, Dev = 37.5 KHz, IFBW=00KHz -0 dbm @ 50 Kbps mode, Dev = 8.75 KHz, IFBW=50KHz -07 dbm @ 00 Kbps mode, Dev = 37.5 KHz, IFBW=00KHz -06 dbm @ 50 Kbps mode, Dev = 56.5 KHz, IFBW=50KHz -03 dbm @ 50 Kbps mode, Dev = 93.75 KHz, IFBW=50KHz FSK 0 pin.0mm header Operating temperature -40 ~ 85 Annotation: 3.6mm(L) x 8.7mm(W) x 0.8mm(H) Typical, +3.3V, 5 * BER E-3 +3.3V, 5 * Not including Connector. To pass CE, the setting of TBG, TDC, PAC maybe changed with different antenna.. For 50Kbps data rate mode, customers should use 6MHz X tal. Please refer to A708 data sheet for detail. 3
Interface Pin No. Symbol Function Description Remark REGI 3.3V supply voltage input pin. +3.3V GND Ground 3 CKO Multi-function clock output. 4 GIO Multi-function IO / SPI data output. 5 GIO Multi-function IO / SPI data output. 6 SDIO SPI Data I/O 7 SCK SPI Clock 8 SCS SPI Chip Selection 9 GND Ground 0 NC No connection 4
Application Circuit 433 VDA C.uF C4 nf C5.uF REGI CKO C 0uF 0 9 8 7 6 GIO U J TRX C 6.8pF HPF C6 6.8pF L3 8nH L4 nh C9 8.pF LPF L5 C0 nh 5pF HPF, LPF is safety for CE C8 8.pF C3.8pF C4 7pF C C9 L 33nH 0nF.uF L 39nH C3 00pF REGI C6 uf C5 470pF VDA C8 33nF 3 4 5 C7.nF BP_RSSI RFI RFO GND R5 80 VDD_A VDD_VCO CP 6 BP_BG GND_PLL 7 C0 REGI A708 VDD_PLL 8 VDD_PLL NC CKO XO 9 XO GIO XI 0 XI VDD_D Y GIO SDIO SCK SCS 5 GIO 4 SDIO 3 SCK SCS VDD_PLL A708 C7 uf REGI GND CKO GIO GIO SDIO SCK SCS GND X_CLK J4 CON/P.7 J5 J3 3 4 5 6 7 8 9 0 CON/0P.0 CON/P.7.8MHz The back plate of the IC should connect to GND 5
Module dimension drawing (Top view) 6
Bill of Material Annotation:. C0 is NC.. Abut the spec. of X tal, please see A708 Datasheet for detail. Item Comp. Description Size Value Tol. Part Number Remark C X5R ceramic capacitor 06 0uF ±0% GRM3CR6A06K C X5R ceramic capacitor 0603.uF ±0% GRM88R6C5K 3 C3 C0G ceramic capacitor 040 00pF ±5% GRM555CH0J RF matching circuit 4 C4 C0G ceramic capacitor 040 nf ±5% GRM555CH0J 5 C5 X5R ceramic capacitor 0603.uF ±0% GRM88R6C5K 6 C6 X5R ceramic capacitor 0603 uf ±0% GRM88R6C05K 7 C7 X5R ceramic capacitor 0603 uf ±0% GRM88R6C05K 8 C8 C0G ceramic capacitor 040 8.pF ±0.5pF GRM555CH8RD LPF 9 C9 X5R ceramic capacitor 0603.uF ±0% GRM88R6C5K 0 C X7R ceramic capacitor 040 0n F ±0% GRM55R7C03K C C0G ceramic capacitor 040 6.8pF ±0.5pF GRM555CH6R8D HPF C3 C0G ceramic capacitor 040.8pF ±0.5pF GRM555CHR8C RF matching circuit 3 C4 C0G ceramic capacitor 040 7pF ±5% GRM555CH70J RF matching circuit 4 C5 C0G ceramic capacitor 040 470pF ±5% GRM555CH47J 5 C6 C0G ceramic capacitor 040 6.8pF ±0.5pF GRM555CH6R8D HPF 6 C7 X7R ceramic capacitor 040.nF ±0% GRM55R7HK PLL Loop Filter 7 C8 X7R ceramic capacitor 040 33n F ±0% GRM55R7C333K PLL Loop Filter 8 C9 C0G ceramic capacitor 040 8.pF ±0.5pF GRM555CH8RD LPF 9 C0 C0G ceramic capacitor 040 5pF ±5% GRM555CH50J LPF 0 R5 Chip resistor 040 80R 5% PLL Loop Filter L Chip inductor 040 39nH ±5% LQG5HS39NJ0 RF matching circuit L Chip inductor 040 33nH ±5% LQG5HS33NJ0 RF matching circuit 3 L3 Chip inductor 040 8nH ±5% LQG5HS8NJ0 HPF L4 Chip resistor 040 nh 5% LQG5HSNJ0 LPF 5 L5 Chip resistor 040 nh 5% LQG5HSNJ0 LPF 6 U TRx IC QFN 0 (4*4) A708 AMICCOM A708 7 Y Crystal US49.8MHz ±0ppm YOKE Cload = 0pF * 7