efficient high-voltage (40 V to 150 V) operation with a typical current drain of 1 mA.
Phone Line AC Ring Signal
TCM1520A
Electronic Telephone or Accessory
TTL /NMOS/CMO.
The device uses a modified form of the Texas Instruments BIDFET† technology to combine low-voltage CMOS and high-voltag.
The TCM1520A is a monolithic ring-detection integrated circuit designed for use in isolated or nonisolated telephone applications. The device uses a modified form of the Texas Instruments BIDFET† technology to combine low-voltage CMOS and high-voltag.
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