Datasheet Details
| Part number | TDA4445A |
|---|---|
| Manufacturer | TEMIC Semiconductors (now Microchip) |
| File Size | 117.09 KB |
| Description | Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator |
| Datasheet | TDA4445A_TEMICSemiconductors.pdf |
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Overview: TELEFUNKEN Semiconductors TDA4445A/TDA4445B Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator Technology:.
| Part number | TDA4445A |
|---|---|
| Manufacturer | TEMIC Semiconductors (now Microchip) |
| File Size | 117.09 KB |
| Description | Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator |
| Datasheet | TDA4445A_TEMICSemiconductors.pdf |
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Pin 1–16 3 8–9 11 12 13 2, 4, 7, 10, 14, 15 Symbol Function IF input If AGC time constant Tuned circuit Supply voltage Sound-IF-output Ground not connected TELEFUNKEN Semiconductors Circuit Description This circuit includes the following functions D Three symmetrical and gain controlled wide band amplifier stages, which are extremely stable by quasi DC coupling without feedback D Averaged AGC with discharge control circuit D AGC voltage generator Quasi parallel sound operation D High phase accuracy of the carrier signal processing, independent from AM TDA4445B additional Pin 5 6 Symbol Function Average capacitor AF output D Linear quadrature demodulator D Sound–IF–amplifier stage with impedance converter AM–Demodulation (TDA4445B only) D Carrier controlled demodulator D Audio frequency stage with impedance converter D Averaged low pass AGC Absolute Maximum Ratings Reference point pin 3, unless otherwise specified Parameters Supply voltage range Supply current External voltages TDA4445A, B TDA4445B only Power dissipation in soldered position Junction temperature Ambient temperature range Storage temperature range Pin 11 Pin 11 Pin 3 Pin 12 Pin 5, 6 Symbol VS IS Vext Value 10 ...
15 70 12 8 8 1 125 –25 to +70 –25 to +125 Unit V mA V Ptot Tj Tamb Tstg W °C °C °C Thermal Resistance Parameters Junction ambient Symbol RthJA Value 60 Unit K/W 2 (8
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
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TDA4445A | SOUND IF AMPLIFIER | ST Microelectronics |
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TDA4445B | SOUND IF AMPLIFIER | ST Microelectronics |
| Part Number | Description |
|---|---|
| TDA4445B | Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator |
| TDA4439 | Video IF Amplifier for Multistandard TV and VTR |
| TDA4452 | Video IF Amplifier for Multistandard TV Receiver and VTR Appliances |
| TDA4453 | Video IF Amplifier for Multistandard TV Receiver and VTR Appliances |
| TDA4454 | Multistandard VIF Amplifier and PLL Demodulator |
| TDA4455 | Multistandard VIF Amplifier and PLL Demodulator |
| TDA4462-B | IF 1-Chip Processor |
| TDA4470-M | Multistandard Video-IF and Quasi Parallel Sound Processing |
| TDA4471 | Multistandard Video-IF and Quasi Parallel Sound Processing |
| TDA4472-M | Video-IF and Quasi Parallel Sound Processing |