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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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PCM3794A Scheda tecnica(PDF) 39 Page - Burr-Brown (TI) |
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PCM3794A Scheda tecnica(HTML) 39 Page - Burr-Brown (TI) |
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39 / 68 page  www.ti.com PCM3793A PCM3794A SLAS529A – JANUARY 2007 – REVISED FEBRUARY 2007 Register 75 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 Register 75 0 IDX6 IDX5 IDX4 IDX3 IDX2 IDX1 IDX0 HPDP HPDE RSV SDHC SDHR SDHL SDSR SDSL IDX[6:0]: 1001011b (4Bh): Register 75 HPDP: Headphone Insertion Detection Polarity HPDE: Enable for Headphone Insertion Detection Default value: 0 Table 10. Headphone Insertion Detection HPDE HPDP HDTI (PIN 8) HP OUTPUT SP OUTPUT 1 0 0 Down Up 1 0 1 Up Down 1 1 0 Up Down 1 1 1 Down Up 0 X X Headphone insertion detection disabled SDHC: Short Protection Disable for HPC (Headphone COM/Monaural Output) SDHR: Short Protection Disable for HPR (R-Channel Headphone) SDHL: Short Protection Disable for HPL (L-Channel Headphone) Default value: 0 Short-circuit protection can be disabled if this function is not needed in an application. SDHC, SDHR, SDHL = 0 Enabled (default) SDHC, SDHR, SDHL = 1 Disabled SDSR: Thermal Protection Disable for SPR (Speaker Amplifier R-Channel) SDSL: Thermal Protection Disable for SPL (Speaker Amplifier L-Channel) Default value: 0 The thermal protection circuit can be disabled if this function is not needed in an application. SDSR, SDSL = 0 Enabled (default) SDSR, SDSL = 1 Disabled Register 76 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 Register 76 0 IDX6 IDX5 IDX4 IDX3 IDX2 IDX1 IDX0 RSV RSV RSV RSV RSV RSV RLSR RLSL IDX[6:0]: 100 1100b (4Ch): Register 76 RLSR: Reset Thermal Protection Circuit for SPR (R-Channel Speaker Amplifier) RLSL: Reset Thermal Protection Circuit for SPL (L-Channel Speaker Amplifier) Default value: 0 A thermal protection circuit puts the device in power-down status after it detects a temperature of approximately 150 °C on the die. These bits must be set to 1 to restore power to the speaker amplifier. RLSR, RLSL = 0 Operation (default) RLSR, RLSL = 1 Reset (set to 0 automatically after being set to 1) 39 Submit Documentation Feedback |
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