No | Part number | Description ( Function ) | Manufacturers | |
3 | TEA7089 | LOW-RANGE PHONE DEDICATED CHIP TEA7089A LOW-RANGE PHONE DEDICATED CHIP . . . . . . . RING - GENERATION OF 8 MELODY TONES (Including the 3 German Melody Tones) - 4 STEPS DIGITAL CONTROL ON THE AMPLIFIER OUTPUT LEVEL SPEECH - TRANSMIT GAINEXTERNALLY ADJUSTABLE - RECEIVINGGAINEXTERNALLYADJUSTABLE - AGCSLOPEEXTERNALLYPROGRAMMABLE - SOFTCLIPPING ON SENDING CHANNEL - RECEIVE AMPLIFIER FOR PIEZO OR ELECTRODYNAMIC |
ST Microelectronics |
|
2 | TEA7089A | LOW-RANGE PHONE DEDICATED CHIP TEA7089A LOW-RANGE PHONE DEDICATED CHIP . . . . . . . RING - GENERATION OF 8 MELODY TONES (Including the 3 German Melody Tones) - 4 STEPS DIGITAL CONTROL ON THE AMPLIFIER OUTPUT LEVEL SPEECH - TRANSMIT GAINEXTERNALLY ADJUSTABLE - RECEIVINGGAINEXTERNALLYADJUSTABLE - AGCSLOPEEXTERNALLYPROGRAMMABLE - SOFTCLIPPING ON SENDING CHANNEL - RECEIVE AMPLIFIER FOR PIEZO OR ELECTRODYNAMIC |
ST Microelectronics |
|
1 | TEA7089AFP | LOW-RANGE PHONE DEDICATED CHIP TEA7089A LOW-RANGE PHONE DEDICATED CHIP . . . . . . . RING - GENERATION OF 8 MELODY TONES (Including the 3 German Melody Tones) - 4 STEPS DIGITAL CONTROL ON THE AMPLIFIER OUTPUT LEVEL SPEECH - TRANSMIT GAINEXTERNALLY ADJUSTABLE - RECEIVINGGAINEXTERNALLYADJUSTABLE - AGCSLOPEEXTERNALLYPROGRAMMABLE - SOFTCLIPPING ON SENDING CHANNEL - RECEIVE AMPLIFIER FOR PIEZO OR ELECTRODYNAMIC |
ST Microelectronics |
List of most widely used semiconductors
Part Number | Function | Manufacturers | |
1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
Vishay |
|
LM317 | This is a popular adjustable voltage regulator. |
ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |