FSK Decoder and DTMF Receiver IC
Nippon Precision Circuits
FCC Registered DAA Module with DTMF Transmitter/Decoder
Xecom
FCC Registered DAA Module with DTMF Transmitter/Decoder ( Rev : 1999 )
Xecom
DTMF Transceiver
Oki Electric Industry
DTMF Receiver
SANYO -> Panasonic
DTMF Generators ( Rev : 1998 )
Holtek Semiconductor
DTMF Transceivers
Unspecified
DTMF Receiver
Unspecified
DTMF RECEIVER
Silan Microelectronics
