SI4739-B20 PDF File ( Datasheet )

Si4736, 37, 38, 39-B20 BROADCAST WEATHER BAND RADIO RECEIVER NC3d6e, d3f7o, r38N, e3w9-DCe4s0igns GPO1 GPO2, INT GPO3, DCLK Features NOAA weather band support (162.4 No manual alignment necessary 162.55 MHz) Programmable reference clock Worldwide FM band support Volume control (76 108 MHz) Programmable soft mute control Worldwide AM band support Programmable de-emphasis (520 1710 kHz) (Si4736, 37 only) RDS, RBDS processor (Si4737, 39 1050 H- alert tone detection only)