BK4802N is a half duplex TDD FM/ASK transceiver IC designed for worldwide toy walkie-talkie and remote controller.
Overview
Features
1. Operating Frequency 19MHz~33MHz
2. Operating Frequency 127MHz~177MHz
3. Operating Frequency 38MHz~66MHz MHz
4. Operating Frequency 380MHz~530MHz
5. Half-duplex transceiver chip
6. 12.5/25 kHz Channel Spacing
7. On-chip FM Mod/De-mod
8. On-chip 10dBm RF Power Amplifier
9. 2.8V~3.6V Supply Voltage
10. Auto Squelch
11. On-chip RF T/R Switch
12. On-chip ASK Mod/De-mod
13. On-chip Microphone Amplifier
14. On-chip 250mW Audio Amplifier
15. Can Work without MCU
16. I2C Interface
17. On-chip ROM Support 16 Channels
18. Can Work with External EEPROM
19.QFN 4x4 32PIN Package