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TDA7309D013TR データシート(PDF) 1 Page - STMicroelectronics |
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TDA7309D013TR データシート(HTML) 1 Page - STMicroelectronics |
1 / 14 page 1/14 TDA7309 March 2006 1FEATURES ■ INPUT MULTIPLEXER: 3 STEREO INPUTS ■ RECORD OUTPUT FUNCTION ■ LOUDNESS FUNCTION ■ VOLUME CONTROL IN 1dB STEPS ■ INDEPENDENT LEFT AND RIGHT VOLUME CONTROL ■ SOFT MUTE FUNCTION ■ ALL FUNCTIONS PROGRAMMABLE VIA SERIAL I2C BUS 2 DESCRIPTION The TDA7309 is a control processor with indepen- dent left and right volume control for quality audio applications. Selectable external loudness and soft mute functions are provided. Control is accomplished by serial I2C bus micro- processor interface. The AC signal setting is obtained by resistor net- works and switches combined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and Low DC stepping are obtained. DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS Figure 2. Block Diagram 17 18 13 14 11 INPUT SELECTOR LEFT INPUTS RIGHT INPUTS SUPPLY 16 7 15 VOLUME + LOUDNESS SOFT MUTE 19 LOUD(L) 22 µF CREF 12 LOUD(R) MUTE MUTE 6 4 5 8 9 2 OUT LEFT SCL SDA DIGGND OUT RIGHT ADDR D93AU045A BUS SERIAL BUS DECODER + LATCHES 20 3 x 2.2 µF 3 x 2.2 µF VOLUME + LOUDNESS AGND VS 3 CSM 100nF 100nF TDA7309 10 Recout(R) 1 Recout(L) Rev. 6 Figure 1. Packages Table 1. Order Codes Part Number Package TDA7309 DIP20 TDA7309D SO20 TDA7309D013TR Tape & Reel DIP20 SO20 |
同様の部品番号 - TDA7309D013TR |
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同様の説明 - TDA7309D013TR |
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