FM Radio Kit V2.0 - FM Radio Kit

Description

The FM Radio Kit is an excellent project for anyone looking to delve into the world of electronics and build their own radio. The kit utilizes industrial integrated circuits using surface-mount technology, such as the Si4820 and NCP2890, which are already mounted on the PCB. This allows the user to only solder the remaining components, such as resistors, capacitors, and other parts, making the radio construction accessible even for beginner electronics enthusiasts. The radio features tuning and volume controls, allowing users to customize the reception to their preferences. The circuit includes a powerful audio amplifier, with sound output through a 66 mm speaker that is included in the kit. With these features, users can enjoy high sound quality while listening to their favorite radio stations.

The radio board can be powered with a voltage range of 2.5V to 5.5V, making it very versatile. This means the radio works well with power from a socket (5 V) or with 3 AA batteries (batteries not included). This flexibility allows users to build a radio that operates under various conditions, whether at home or outdoors. The Si4820 integrated circuit is a modern radio receiver that offers excellent reception quality and ease of tuning. It enables precise tuning to the selected radio station, which is crucial for obtaining clear sound. The NCP2890 circuit provides an output power of up to 1W, sufficient to drive the supplied speaker. Thus, users can expect high sound quality, even at higher volume levels.

The kit also includes detailed assembly instructions and diagrams that guide users through the entire radio-building process step by step. Additionally, tips on optimizing signal reception are provided, making the project even more engaging and educational. Building your own FM radio not only offers satisfaction from completing the project but also helps you understand the principles of electronics and radio technology.

Features

• Uses Si4820 (radio receiver) and NCP2890 (audio amplifier) integrated circuits
• Integrated circuits are pre-mounted
• Tuning and volume control
• Built-in amplifier ensures high sound quality
• Includes a 66 mm speaker
• NCP2890 provides output power up to 1 W
• Voltage range: 2.5 V to 5.5 V
• Typical current in standby mode: 20 mA
• Maximum current: 250 mA
• Dimensions: 88 x 46 mm

Kit contains

• Integrated circuit Si4820 FM Radio (pre-mounted)
• CM1213A ESD protection diode (pre-mounted)
• TLV700 3.3V LDO 200mA voltage regulator (pre-mounted)
• NCP2890D Mono amplifier circuit (pre-mounted)
• Fixed inductor 270nH 5% (pre-mounted)
• 100K 16mm linear potentiometer
• 10K 16mm linear potentiometer
• 5 x 50V, 1uF electrolytic capacitors
• 3 x 50V, 100nF ceramic capacitors
• 33pF ceramic capacitor
• 2 x 22pF ceramic capacitors
• 2 x 470nF ceramic capacitors
• 50V, 470pF ceramic capacitor
• 50V, 1nF ceramic capacitor
• 16V, 100uF electrolytic capacitor
• 2 x 220K resistors
• 56K resistor
• 3.3K resistor
• 100K resistor
• 2 x 0R resistors
• 6.8K resistor
• 470R resistor
• 10K resistor
• Clock crystal for the radio
• 100R resistor
• 3xAA battery holder with wires
• 1 m of single-core wire
• 8Ω 66mm speaker
• FM radio printed circuit board