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• Product Introduction DP-666 is a high-sensitivity radio in accordance with NXP&;s high-performance automotive-grade TEF6686 chip, which has very best selectivity and ultra-high sensitivity This automobile DSP tuner has quite a lot of applications and advanced algorithms (CEQ, EMS, iMS and PACS, noise canceller), SDR(software-defined radio) signal processing, especially for enchancment of multipath, adjoining frequency interference, weak indicators There are meaningful advantages in processing and noise cancellation DP-666 is a radio constructed on PE5PVB&;s open source assignment TEF6686_ESP32 In addition to listening to radio stations, the assignment also helps a wealth of improved features, such as: just about all RDS (Radio Data System) records display, automatic/manual station scanning, squelch function, battery voltage display, changeable themes, multilingual, station presets, and more We redesigned the circuit board with reference to the mature TEF6686 front-end receiving circuit, and geared up the DP-666 with a 2 LCD coloration display screen with resistive contact in response to the open source task While ensuring the portability of the machine, it's going to reveal wealthy RDS news (RDS news requires local radio support); a numeric keypad is added to facilitate users to soon input frequencies; and a large-capacity 5000mAH battery supports longer standby time In short, I hope you'll be convinced with this moveable high-sensitivity journey radio! PE5PVB task : DP-666 task : Basic Parameters Main control chip: ESP32-WROOM-32U，Flash 4MB，Wi-Fi + Bluetooth dual-core module Display technology: 2 320x240 resolution, IPS full-viewing angle LCD screen with resistive touch Control method: Default numeric keyboard enter and knob tuning, also supports third-party touch display screen firmware Frequency range: eceiving indicators: Antenna interface: Full-band exterior antenna, normal SMA female connector Speaker output: Using TI audio amplifier chip TPA6211A1, using 45x45mm large-size sound cavity speaker, energy 4Ω/3W, decrease output noise and less distortion Headphone output: Using AD headphone amplifier chip MAX97220, typical three audio connector output, self sufficient dual amplifier design for audio system and headphones, optimized individually with out affecting one another Battery: 3/5000mAh, 18, lithium battery length 65x55x10mm Current consumption: About 3/350mA, use time about 15 hours Communication interface: Built-in CH340 USB to serial port chip, by way of TYPE-C interface Dimensions and weight: 142x30x80mm (excluding antenna connector and antenna), bodyweight 300g For extra information, visit: deepelec/dp-666

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