Product Introduction
DP-666 is a high-sensitivity radio based on NXP's high-performance automotive-grade TEF6686 chip, which has excellent selectivity and ultra-high sensitivity. This automotive DSP tuner has a wide range of functions and advanced algorithms (CEQ, EMS, iMS and PACS, noise canceller...), SDR(software-defined radio) signal processing, especially for improvement of multipath, adjacent frequency interference, weak signals There are significant advantages in processing and noise cancellation.
DP-666 is a radio built on PE5PVB's open source project TEF6686_ESP32. In addition to listening to radio stations, the project also supports a wealth of advanced features, such as: almost all RDS (Radio Data System) data 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 equipped the DP-666 with a 2.8-inch LCD color screen with resistive touch based on the open source project. While ensuring the portability of the machine, it can display rich RDS information (RDS information requires local radio support); a numeric keypad is added to facilitate users to quickly input frequencies; and a large-capacity 5000mAH battery supports longer standby time.
In short, I hope you will be satisfied with this portable high-sensitivity travel radio!
PE5PVB project : https://github.com/PE5PVB/TEF6686_ESP32
DP-666 project : https://github.com/flyoob/TEF6686_ESP32
Basic Parameters
Main control chip: ESP32-WROOM-32U，Flash 4MB，Wi-Fi + Bluetooth dual-core module
Display technology: 2.8-inch 320x240 resolution, IPS full-viewing angle LCD screen with resistive touch
Control method: Default numeric keyboard input and knob tuning, also supports third-party touch screen firmware
Frequency range:
eceiving indicators:
Antenna interface: Full-band external antenna, standard SMA female connector
Speaker output: Using TI audio amplifier chip TPA6211A1, driving 45x45mm large-size sound cavity speaker, power 4Ω/3W, lower output noise and less distortion.
Headphone output: Using AD headphone amplifier chip MAX97220, standard 3.5mm audio connector output, independent dual amplifier design for speakers and headphones, optimized separately without affecting each other.
Battery: 3.7V/5000mAh, 18.5Wh, lithium battery size 65x55x10mm
Current consumption: About 3.7V/350mA, use time about 15 hours
Communication interface: Built-in CH340 USB to serial port chip, through TYPE-C interface
Dimensions and weight: 142x30x80mm (excluding antenna connector and antenna), body weight 300g
For more information, visit: deepelec.com/dp-666
