Bottom view. AR1310 supports 64-108 MHz FM frequency range, the chip includes all FM radio functions: low-noise amplifier, mixer, oscillator and low-drop stabilizer. Then it seemed very “cool”, when in the mid-90s I first saw a working circuit in a radio store, I was impressed)) However, progress is moving forward, and today you can buy the hero of our review for “three kopecks”. — No microcontroller required For scale next to the coin. There were schemes from the magazine "Radio", there were just designers. — Low power consumption 15 mA, sleep mode 16 uA

VHF receiver module for 64 – 108 MHz

— FM frequency reception range 64 -108 MHz Google search reveals: "This is a highly integrated, single-chip, stereo FM radio receiver. Let’s take a closer look. View from above. AR1310 description and specifications On the Internet, only wiring diagrams come across. —Supports electronic volume control Greetings! In this review, I want to talk about a miniature receiver module operating in the VHF (FM) range at a frequency of 64 to 108 MHz. — 2.2 V to 3.6 V operating voltage —Using an inexpensive 32.768KHz crystal. The last thing I collected was the design on the K174XA34 chip. The module itself is based on the AR1310 chip. —Built-in headphone amplifier 32 Class AB ohm Requires a minimum of external components.Has good audio quality and excellent reception quality.AR1310 does not require control microcontrollers and no additional software other than 5 buttons.Working voltage 2.2V to 3.6V.consumption 15mA, in sleep mode 16uA". — Support for four tuning ranges Every time I wanted to assemble the receiver better and smaller. I could not find an exact datasheet for it, apparently it was made in China and its exact functional structure is not known. —Supports stereo or mono mode (connecting pins 4 and 5 disables stereo mode) I have a special trepidation for radios, I like to collect them since school. Pinout and overall dimensions of the module. — In SOP16 package On one of the specialized Internet resources, I came across a picture of this module, I became curious to study it and test it. —Built-in two-way auto seek function