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CS44800-CQZ データシート(PDF) 3 Page - Cirrus Logic |
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CS44800-CQZ データシート(HTML) 3 Page - Cirrus Logic |
3 / 80 page DS632F1 3 CS44800 TABLE OF CONTENTS 1. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 8 SPECIFIED OPERATING CONDITIONS .............................................................................................. 8 ABSOLUTE MAXIMUM RATINGS ........................................................................................................ 8 DC ELECTRICAL CHARACTERISTICS ............................................................................................... 9 DIGITAL INTERFACE CHARACTERISTICS ........................................................................................ 9 PWM OUTPUT PERFORMANCE CHARACTERISTICS .................................................................... 10 PWM FILTER CHARACTERISTICS ................................................................................................... 11 SWITCHING CHARACTERISTICS - XTI ............................................................................................ 11 SWITCHING CHARACTERISTICS - SYS_CLK .................................................................................. 12 SWITCHING CHARACTERISTICS - PWMOUTA1-B4 ....................................................................... 12 SWITCHING CHARACTERISTICS - PS_SYNC ................................................................................. 12 SWITCHING CHARACTERISTICS - DAI INTERFACE ...................................................................... 13 SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT ............................................. 14 SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT ............................................ 15 2. PIN DESCRIPTIONS ........................................................................................................................... 16 2.1 I/O Pin Characteristics ................................................................................................................ 20 3. TYPICAL CONNECTION DIAGRAMS .....................................................................................21 4. APPLICATIONS ................................................................................................................................... 23 4.1 Overview ....................................................................................................................................... 23 4.2 Feature Set Summary ................................................................................................................... 23 4.3 Clock Generation ........................................................................................................................... 24 4.3.1 FsIn Domain Clocking .......................................................................................................... 25 4.3.2 FsOut Domain Clocking ........................................................................................................ 25 4.4 FsIn Clock Domain Modules ......................................................................................................... 27 4.4.1 Digital Audio Input Port ......................................................................................................... 27 4.4.2 Auto Rate Detect .................................................................................................................. 31 4.4.3 De-Emphasis ........................................................................................................................ 31 4.5 FsOut Clock Domain Modules ....................................................................................................... 32 4.5.1 Sample Rate Converter ........................................................................................................ 32 4.5.2 Load Compensation Filter .................................................................................................... 32 4.5.3 Digital Volume and Mute Control ..........................................................................................32 4.5.4 Peak Detect / Limiter ............................................................................................................ 33 4.5.5 PWM Engines ....................................................................................................................... 33 4.5.6 Interpolation Filter ................................................................................................................. 34 4.5.7 Quantizer .............................................................................................................................. 34 4.5.8 Modulator ............................................................................................................................. 34 4.5.9 PWM Outputs ....................................................................................................................... 34 4.5.10 Power Supply Rejection (PSR) Real-Time Feedback ........................................................ 35 4.6 Control Port Description and Timing ............................................................................................. 36 4.6.1 SPI Mode .............................................................................................................................. 36 4.6.2 I²C Mode ............................................................................................................................... 37 4.6.3 GPIOs ................................................................................................................................... 38 4.6.4 Host Interrupt ........................................................................................................................ 38 5. POWER SUPPLY, GROUNDING, AND PCB LAYOUT ....................................................................... 39 5.1 Reset and Power-Up ..................................................................................................................... 42 5.1.1 PWM PopGuard® Transient Control .................................................................................... 42 5.1.2 Recommended Power-Up Sequence ................................................................................... 42 5.1.3 Recommended PSR Calibration Sequence ........................................................................ 43 5.1.4 Recommended Power-Down Sequence .............................................................................. 44 6. REGISTER QUICK REFERENCE ........................................................................................................ 46 7. REGISTER DESCRIPTION .................................................................................................................. 50 7.1 Memory Address Pointer (MAP) .................................................................................................... 50 |
同様の部品番号 - CS44800-CQZ |
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同様の説明 - CS44800-CQZ |
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