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ALC5611-GR Datasheet(PDF) 16 Page - Realtek Semiconductor Corp. |
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ALC5611-GR Datasheet(HTML) 16 Page - Realtek Semiconductor Corp. |
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16 / 73 page  ALC5611 Datasheet AC’97 Audio Codec + Touch Panel Controller 8 Track ID: JATR-1076-21 Rev. 1.1 7. Functional Description 7.1. Power The ALC5611 has many power blocks. SPKVDD operates between 2.3V and 5V. HPVDD, TPVDD and AVDD1 operate between 2.3V and 3.6V. DVDD1 and DVDD2 operate between 1.8V and 3.6V. The power supplier limit conditions are DVDD1≥DVDD2, SPKVDD≥AVDD1, HPVDD≥AVDD1≥DVDD2, TPVDD≥DVDD2, and AVDD1=TPVDD Table 5. Power Setting for Best Performance Power DVDD1 DVDD2 HPVDD TPVDD AVDD1 SPKVDD Setting 3.3V 1.8V 3.3V 3.3V 3.3V 4.2V 7.2. Reset There are 4 types of reset operation: Power-On Reset (POR), Cold, Warm, and Register reset. Table 6. Reset Operation Reset Type Trigger Condition CODEC Response POR Power-On Reset. Monitor digital power supply voltage reaches VPOR Resets all hardware logic and all registers to default values. Cold Reset Asserts RESET# for a specified period Resets all hardware logic and all registers to default values except some PLL related control registers and logic. Register Reset Write Reg-00h Resets all registers to default values except some PLL related control registers and logic. Warm Reset Drives SYNC high for specified period without BIT_CLK Reactivates AC-Link. No change to register values. 7.2.1. Power-On Reset (POR) When powered on, DVDD2 passes through the VPOR band of the ALC5611 (VPOR_ON ~VPOR_OFF), the Power On Reset (POR) will generate an internal reset signal (POR reset ‘LOW’) to reset the whole chip. Table 7. Power On Reset Voltage Symbol Min Typical Max Unit VPOR_ON 1.0 - 1.6 V VPOR_OFF - 1.3 - V Note: VPOR_OFF must be below VPOR_ON. |
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