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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8753LEB/RV датащи(PDF) 43 Page - Wolfson Microelectronics plc |
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WM8753LEB/RV датащи(HTML) 43 Page - Wolfson Microelectronics plc |
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43 / 87 page  WM8753L Advanced Information w AI Rev 3.1 June 2004 43 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 8 LO1VU 0 Left Volume Update 0 = Store LOUT1VOL in intermediate latch (no gain change) 1 = Update left and right channel gains (left = LOUT1VOL, right = intermediate latch) 7 LO1ZC 0 Left zero cross enable 1 = Change gain on zero cross only 0 = Change gain immediately R40 (28h) LOUT1 Volume 6:0 LOUT1VOL [6:0] 1111001 (0dB) LOUT1 Volume 1111111 = +6dB … (1.0 dB steps) 0110000 = -73dB 0101111 to 0000000 = Analogue MUTE 8 RO1VU 0 Right Volume Update 0 = Store ROUT1VOL in intermediate latch (no gain change) 1 = Update left and right channel gains (left = intermediate latch, right = ROUT1VOL) 7 RO1ZC 0 Left zero cross enable 1 = Change gain on zero cross only 0 = Change gain immediately R41 (29h) ROUT1 Volume 6:0 ROUT1VOL [6:0] 1111001 ROUT1 Volume Similar to LOUT1VOL Table 35 LOUT1/ROUT1 Volume Control LOUT2/ROUT2 OUTPUTS The LOUT2 and ROUT2 output pins are essentially similar to LOUT1 and ROUT1, but they are independently controlled and can also drive an 8 Ω mono speaker (see Speaker Output section). For speaker drive, the ROUT2 signal must be inverted (ROUT2INV = 1), so that the left and right channel are mixed to mono in the speaker [L–(-R) = L+R]. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 6:0 LOUT2VOL [6:0] 1111001 (0dB) Same as LOUT1VOL 7 LO2ZC 0 Left zero cross enable 1 = Change gain on zero cross only 0 = Change gain immediately R42 (2Ah) LOUT2 Volume 8 LO2VU 0 Same as LO1VU 6:0 ROUT2VOL [6:0] 1111001 (0dB) Same as ROUT1VOL 7 RO2ZC 0 Left zero cross enable 1 = Change gain on zero cross only 0 = Change gain immediately R43 (2Bh) ROUT2 Volume 8 RO2VU 0 Same as RO1VU R45 (2Dh) Output Control 2 ROUT2INV 0 ROUT2 Invert 0 = No Inversion (0 ° phase shift) 1 = Signal inverted (180 ° phase shift) Table 36 LOUT2/ROUT2 Volume Control |
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