Part Number: RDA1846
Function : SINGLE CHIP TRANSCEIVER FOR WALKIE TALKIE
Package: 5X5 mm 32 pin QFN Type
Manufacturer: RDA Microelectronics ( http://www.rdamicro.com/ )
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Description
The RDA1846 is a highly integrated single-chip transceiver for Walkie Talkie applications. It totally realizes the translation from RF carrier to voice in the RX path and from voice to RF carrier in the TX path, requiring only one micro controller. The RDA1846 has a powerful digital signal processor, which makes it have optimum voice quality, flexible function options, and robust performance under varying reception conditions. The RDA1846 can be tuned to the worldwide frequency band for Walkie Talkie from 400MHz to 500MHz and especially from 134MHz to 174MHz which meets the frequency band of weather broadcast.
Pinout
Features
1. CMOS single-chip fully-integrated transceiver
2. Fully integrated frequency synthesizer and VCO
3. Digital auto frequency control (AFC)
4. Digital auto gain control (AGC)
5. Selectable pre/de-emphasis
6. Received signal strength indicator (RSSI)
7. DTMF and programmable in-band dual tone
8. Programmable in-band single tone transmitter
9. Auto RX/TX/SLEEP state switching
Reference Site
1. https://github.com/phishman/RDA1846
2. RDA1846 Programming Guide.PDF
RDA1846 Datasheet
