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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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WM9713 데이터시트(PDF) 104 Page - Wolfson Microelectronics plc |
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WM9713 데이터시트(HTML) 104 Page - Wolfson Microelectronics plc |
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104 / 111 page  WM9713L Preliminary Technical Data 1 PTD, March 2004, Rev 2.2 104 BTL LOUDSPEAKER OUTPUT SPKL and SPKR can differentially drive a mono 8 Ω loudspeaker as shown below. Figure 37 Speaker Output Connection (INV = 1) To drive out differentially one of the speaker outputs must be inverted using INV1 or INV2. COMBINED HEADSET / BTL EAR SPEAKER In smartphone applications with a loudspeaker and separate ear speaker (receiver), a BTL ear speaker can be connected at the OUT3 pin, as shown below. Figure 38 Combined Headset / BTL Ear Speaker The ear speaker and the headset play the same signal. Whenever the headset is plugged in, the headphone outputs are enabled and OUT3 disabled. When the headset is not plugged in, OUT3 is enabled (see “Jack Insertion and Auto-Switching”) |
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