Voice Switched Speakerphone circuit

GENERAL DESCRIPTION The NJW1124 is a Voice Switched Speakerphone Circuit. NJW1124 includes all of functions processing a high quality handsñfree speakerphone system, such as the necessary amplifiers ( Microphone , Receive ,Line), attenuators, level detectors functions. All external capacitors a

Multimelody IC for Pagers

OVERVIEW The SM1124 Series are melody pager multi-melody ICs fabricated in NPC’s Molybdenum-gate CMOS. A maximum of 16 tunes can be stored in programmable ROM, and the Molybdenum-gate CMOS process realizes small-sized packages and low power dissipation. FEATURES ■ Maximum of 16 tune selections

Optocoupler with Phototransistor Output

Description The TCDT1120(G) series consists of a phototransis tor optically coupled to a gallium arsenide infrared emitting diode in a 6-lead plastic dual inline package. The elements are mounted on one leadframe using a coplanar technique, providing a fixed distance between input and output fo

Optocoupler with Phototransistor Output

Description The TCDT1120(G) series consists of a phototransis tor optically coupled to a gallium arsenide infrared emitting diode in a 6-lead plastic dual inline package. The elements are mounted on one leadframe using a coplanar technique, providing a fixed distance between input and output fo

Zero Voltage Switch with Fixed Ramp

Description The monolithic integrated bipolar circuit, TEA1024/TEA1124 is a zero voltage switch for triac control in domestic equipments. It offers not only the control of a triac in zero crossing mode but also the possibility of power control. This is why the IC contains a mains synchronized r

Silicon PNP epitaxial planer transistor

Silicon PNP epitaxial planer transistor For digital circuits ■ Features ● Costs can be reduced through downsizing of the equipment and reduction of the number of parts. ● M type package allowing easy automatic and manual insertion as well as stand-alone fixing to the printed circuit bo