T4227-FB  SSOP16  ATMEL 

The T4227 is a bipolar integrated straight-through receiver circuit in the frequency range of 40 kHz to 120 kHz. The device is designed for radio-controlled clock applications with very high sensitivity.

Low power consumption
Very high sensitivity
High selectivity by using crystal filter
Power-down mode available
Only a few external components necessary
Complementary output stages
AGC hold mode
Wide frequency range (40 kHz to 120 kHz)
Low battery voltage applications (1.1 V to 3.6 V)