2. Soldering the headers Before using your click board, make sure to solder 1x8 male headers to both left and right side of the board. Two 1x8 male headers are included with the board in the package. 1 FM click 2 3 4. Essential features 1. Introduction FM Click with its Si4703 IC is a complete FM radio tuner (from antenna input to stereo audio output). It supports worldwide FM band (76 108 MHz). The board contains automatic frequency and gain control, RDS/ RBDS processor, seek tuning and volume Turn the board upside down so that Turn the board upward again. Make sure control. All these features make this board bottom side is facing you upwards. Place to align the headers so that they are ideal for MP3 players, portable radios, PDAs, shorter parts of the header pins in both perpendicular to the board, then solder the notebook PCs, portable navigations and soldering pad locations. pins carefully. many more. FM Click is an accessory board in mikroBUS form factor. Its a compact and 3. Plugging the board in easy solution for adding broadcast FM radio click tuner to your design. It features Si4703 FM Once you have soldered the headers your radio tuner, two LM4864 audio amplifiers board is ready to be placed into desired BOARD as well as stereo audio connector. FM mikroBUS socket. Make sure to align the www.mikroe.com Click communicates with the target board cut in the lower-right part of the board 2 microcontroller via mikroBUS I C (SDA, with the markings on the silkscreen at the FM click Manual SCL), INT, RST, CS and AN lines. The board mikroBUS socket. If all of the pins are ver. 1.01 is designed to use 3.3V power supply only. aligned correctly, push the board all LED diode (GREEN) indicates the presence the way into the socket. of power supply. 0 100000 0237856. Earphones and antenna 5. FM Click Board Schematic VCC VCC VCC FM antenna is provided through the earphones C4 C5 C6 R2 R3 R4 VCC cable (recommended length between 1.1 and VCC 100nF U2 LM4864 4K7 4K7 10K X1 10pF 10pF 1 8 GPIO2 SHTDWN Vo2 2 7 1.45 m). The board supports 3 and 4 conductor GPIO1 BYPASS GND 3 6 32.768KHz R5 IN+ Vdd FP1 4 5 E3 earphones with pinout as shown in schematic. U1 IN- Vo1 10uF 20K FERRITE C7 E1 Earphones are not included in the package CN1 R6 100nF NC VA 1 10uF FMIP GND 20K RFGND LOUT 2 GND PAD C8 GND ROUT VCC 3 RST 100nF U3 LM4864 RST GND 4 SEN 1 8 SEN VDD SHTDWN Vo2 2 7 7. Code Examples BYPASS GND STEREO SWITCH CONN C3 3 6 R7 IN+ Vdd FP2 4 5 E6 Si4703 IN- Vo1 1nF 10uF 20K FERRITE C9 E4 Once you have done all the necessary SCLK R8 SDIO 100nF 10uF preparations, its time to get your click 20K board up and running. We have provided R9 L1 270nH 10K the examples for mikroC, mikroBasic and VCC mikroPascal compilers on our Libstock website. Just download them and you are ready to start. 4 2 1 VCC .com Pin Number 1 2 4 Description Left Audio Right Audio Antenna GPIO2 VCC VCC VCC AN PWM RST GPIO1 RST INT SEN R1 CS TX 2K2 SCK RX SCLK SCL C2 C1 8. Support MISO SDIO LD1 MOSI SDA 100nF 22nF 4 3 2 1 +3.3V +5V GND GND MIKROBUS DEVICE CONN. MikroElektronika oers ff Free Tech Support Pin Number 1 2 3 4 (www.mikroe.com/esupport) until the Description Left Audio Right Audio Antenna Antenna end of product lifetime, so if something goes wrong, we are ready and willing to help MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document. Specification and information contained in the present schematic are subject to change at any time without notice. Copyright 2013 MikroElektronika. All rights reserved. SCLK NC SDIO GPIO1 GPIO2 RCLK VIO GPIO3 C11 100nF C10 100nF E5 10uF E2 10uF