WTR1625L supports all cellular modes and bands that are currently fully specified in 3GPP. An additional, much smaller WFR1620 receive-only companion chip is required for implementation of carrier aggregation with WTR1625L.
The eKM6251 is standard RF Mouse Receiver (Rx) Controller for USB and PS/2 compatible interface. It’sreceives the RF packet data fromRF Rx module (circuits). And decode the RF packet data and transmitting the data to PC by USB or PS/2 interface. The eKM6251 have internal EEPROMto storage the Device ID, do not need the external storage device like 93C46. It’shave built-in RF signal sampling and noise immunity function to improve the RF data decode efficiency.
1. Operating voltage: 2.5V~5.5V 2. Built-in regulator to generate 3.3V 3. Operating frequency: 6.00Mhz 4. Built-in USB Device Controller and Interface. 5. Support USB and PS/2 detect mode and compatible interface. 6. Built-in EEPROM to storage 1 byte Device ID (255 sets) 7. Built-in RF signal sampling and noise immunity function. 8. Support a LED to display RF packet receive status and ID set mode.