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TDA7348 数据表(PDF) 5 Page - STMicroelectronics |
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TDA7348 数据表(HTML) 5 Page - STMicroelectronics |
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5 / 20 page  TDA7348 Block diagram and PIN connections 5/20 1 Block diagram and PIN connections Figure 1. Block diagram Figure 2. PIN connections 14 13 11 L1 L2 L1 L2 L4 10 R1 R2 R1 R2 R4 9 INPUT SELECTOR + GAIN LEFT INPUTS RIGHT INPUTS SUPPLY 2 31 ZERO CROSS + MUTE SOFT MUTE OUT(L) IN(L) 17 16 VOL 1, 2 ZERO CROSS + MUTE VOL 1, 2 BASS BASS TREBLE TREBLE 10 μF 7 OUT(R) CREF IN(R) 6 BOUT(L) BIN(L) 19 18 BOUT(R) BIN(R) 21 20 5 TREBLE(R) SPKR ATT MUTE SPKR ATT MUTE SPKR ATT MUTE SPKR ATT MUTE TREBLE(L) 4 24 28 27 25 26 23 OUT LEFT FRONT OUT LEFT REAR SCL SDA OUT RIGHT FRONT OUT RIGHT REAR D93AU100B BUS SERIAL BUS DECODER + LATCHES 3 x 1 μF C1 C2 C4 C6 C5 AGND VS C8 C10 2.2 μF C9 2.2 μF RB C11 100nF C12 100nF R1 4.7K C13 2.7nF C14 100nF C15 100nF C16 2.7nF R2 4.7K 15 CSM 47nF RB CSM 12 L3 C3 L3 R3 R3 8 C7 3 x 1 μF 22 SM IN(R) OUT(R) IN R3 IN R2 IN R1 IN L3 AM MONO IN L2 IN L1 1 3 2 4 5 6 7 8 9 CSM IN(L) OUT(L) BOUT(L) BIN(L) BIN(R) BOUT(R) SM OUT RR 23 22 21 20 19 17 18 16 15 D94AU099 10 11 12 13 14 28 27 26 25 24 CREF VS GND L R OUT LR OUT RF OUT LF SDA SCL TREBLE BUS INPUTS BASS |
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