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WM8599SEFT/V Datasheet(PDF) 57 Page - Wolfson Microelectronics plc |
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WM8599SEFT/V Datasheet(HTML) 57 Page - Wolfson Microelectronics plc |
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57 / 74 page ![]() Product Preview WM8599 w PP Rev 1.0 January 2007 57 Figure 37 R25 – PGA Control Register 1 Figure 38 R26 – PGA Control Register 2 R25 (19h) – PGA Control Register 1 (PGA_CTRL1) Bit # 15 14 13 12 11 10 9 8 Read 0 0 0 0 0 0 0 0 Write N/A N/A N/A N/A N/A N/A N/A N/A Default 0 0 0 0 0 0 0 0 Bit # 7 6 5 4 3 2 1 0 Read Write PGA3R_ZC PGA3L_ZC PGA2R_ZC PGA2L_ZC PGA1R_ZC PGA1L_ZC ATTACK_ BYPASS DECAY_ BYPASS Default 1 1 1 1 1 1 0 0 N/A = Not Applicable (no function implemented) Function Description DECAY_BYPASS PGA Gain Decay Mode 0 = PGA gain will ramp down 1 = PGA gain will step down ATTACK_BYPASS PGA Gain Attack Mode 0 = PGA gain will ramp up 1 = PGA gain will step up PGA1L_ZC PGA1R_ZC PGA2L_ZC PGA2R_ZC PGA3L_ZC PGA3R_ZC PGA Gain Zero Cross Enable 0 = PGA gain updates occur immediately 1 = PGA gain updates occur on zero cross Zero cross must be disabled to use gain ramp R26 (1Ah) – PGA Control Register 2 (PGA_CTRL2) Bit # 15 14 13 12 11 10 9 8 Read 0 0 0 0 0 0 0 0 Write N/A N/A N/A N/A N/A N/A N/A N/A Default 0 0 0 0 0 0 0 0 Bit # 7 6 5 4 3 2 1 0 Read 0 Write N/A VOUT3R_ MUTE VOUT3L_ MUTE VOUT2R_ MUTE VOUT2L_ MUTE VOUT1R_ MUTE VOUT1L_ MUTE MUTE_ALL Default 0 0 0 0 0 0 0 0 N/A = Not Applicable (no function implemented) Function Description MUTE_ALL Master PGA Mute Control 0 = Unmute all PGAs 1 = Mute all PGAs VOUT1L_MUTE VOUT1R_MUTE VOUT2L_MUTE VOUT2R_MUTE VOUT3L_MUTE VOUT3R_MUTE Individual PGA Mute Control 0 = Unmute PGA 1 = Mute PGA |
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