
ETC1
[XEMICS]
General Description
The XE1218 is a single chip ultra low-power VHF FM receiver. The circuit includes the RF receiver section, the demodulator and the audio amplifier that is directly connected to an external earpiece. It uses analog narrow-band FM modulation. The XE1218 is based on a low-IF architecture, with on-chip channel filter and a delay line type demodulator. The LO is generated by a crystal oscillator.
FEATUREs
• Ultra low voltage operation : down to 1 Volt
• Ultra low-power consumption : 2 mA
• Highly integrated single chip audio receiver : antenna in, loudspeaker out
• High sensitivity : -107 dBm
• AFC range +/- 10 kHz
• Mute function
• 6 kHz audio bandwidth
• 45 dB Audio SNR
• Integrated audio amplifier
APPLICATIONs
• Toys
• Local/Wide area voice paging
• FM broadcasting miniature receiver
• Wireless phone headset