TS2012 Filter-free Stereo 2x2.8W Class D Audio Power Amplifer

The TS2418 is a monolithic integrated circuit telephone tone ringer that utilizes a bridge diode. When paired with an appropriate transducer, it serves as a replacement for traditional electromechanical bells. This device is compatible with either a piezo transducer or an economical transformer-coupled speaker to generate a pleasing tone, which alternates between a high frequency (fR) and a low frequency (fL), resulting in a warble frequency. The supply voltage is derived from the AC ringing signal, and the circuit is designed to ensure that noise on the line or variations in the ringing signal do not affect the device's proper operation. This product is manufactured by Taiwan Semiconductor Company, Ltd. (TSC).

The TS2418 integrated circuit functions as an efficient telephone tone ringer, effectively replacing traditional mechanical bell systems with a modern electronic solution. The device's architecture includes a bridge diode configuration that allows it to interface seamlessly with various transducer types. The choice of using a piezo transducer or a transformer-coupled speaker provides flexibility in design and application, catering to different acoustic requirements and cost considerations.

The tone generation mechanism relies on the manipulation of two distinct frequencies: a high frequency (fR) and a low frequency (fL). The alternating nature of these frequencies creates a warble effect, which is not only more pleasant to the ear but also serves to attract attention effectively. This characteristic is particularly useful in environments where auditory alerts need to be distinct and noticeable.

Powering the TS2418 is achieved through the AC ringing signal typically present in telephone lines. This design choice eliminates the need for additional power supplies, simplifying the overall circuit design and reducing costs. The integrated circuit is engineered to maintain consistent performance despite potential noise interference or fluctuations in the ringing signal, ensuring reliable operation in various conditions.

In summary, the TS2418 represents a significant advancement in telephone signaling technology, combining ease of integration, cost-effectiveness, and reliable performance. Its ability to produce a warble tone through simple frequency modulation makes it an ideal choice for modern telecommunication applications.The TS2418 is a monolithic integrated circuit telephone Tone ringer with bridge Diode when coupled with an appropriate transducer, it replaces the electromechanical bell. This device is designed for use with either a piezo transducer or an inexpensive transformer coupled speaker to produce a pleasing Tone composed of a high frequency (fR) alternat

ing with a low frequency (fL) resulting in a warble frequency. The supply voltage is obtained from the AC ring signal and the circuit is designed so that noise on the line or variation of the ringing signal CAN not affect correct operation of the device By Taiwan Semiconductor Company, Ltd. (TSC) 🔗 External reference