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TDA4445A 数据表(PDF) 2 Page - STMicroelectronics |
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TDA4445A 数据表(HTML) 2 Page - STMicroelectronics |
2 / 6 page BLOCK DIAGRAMS GENERAL DESCRIPTION This circuit includes the following functions : . Three symmetrical and gain controlled wide band amplifier stages, which are extremely sta- ble by quasi DC coupling without feedback. . Averaging AGC with discharge control circuit . AGC voltage generator Quasi parallel sound operation : . High phase accuracy of the carrier signal proc- essing, independent from AM . Linear quadrature demodulator . Sound-IF-amplifier stage with impedance con- verter AM-Demodulation (only TDA4445B) : . Carrier controlled demodulator . Audio frequency stage with impedance con- verter . Averaging low pass AGC TDA4445A TDA4445B TDA4445A - TDA4445B 2/6 |
类似零件编号 - TDA4445A |
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类似说明 - TDA4445A |
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