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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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CS3318 데이터시트(PDF) 1 Page - Cirrus Logic |
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CS3318 데이터시트(HTML) 1 Page - Cirrus Logic |
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1 / 44 page  Copyright © Cirrus Logic, Inc. 2006 (All Rights Reserved) http://www.cirrus.com 8-Channel Analog Volume Control Features Complete Analog Volume Control – 8 Independently Controllable Channels – 3 Configurable Master Volume and Muting Controls Wide Adjustable Volume Range – -96 dB to +22 dB in ¼ dB Steps Low Distortion & Noise – -112 dB THD+N – 127 dB Dynamic Range Noise-Free Level Transitions – Zero-Crossing Detection with Programmable Time-Out Low Channel-to-Channel Crosstalk – 120 dB Inter-Channel Isolation Comprehensive Serial Control Port – Supports I²C® and SPITM Communication – Independent Control of up to 128 Devices on a Shared 2-Wire I²C or 3-Wire SPI Control Bus – Supports Individual and Grouped Control of all CS3318 Devices on the I²C or SPI Control Bus Flexible Power Supply Voltages – ±8 V to ±9 V Analog Supply – +3.3 V Digital Supply Description The CS3318 is an 8-channel digitally controlled analog volume control designed specifically for high-end audio systems. It features a comprehensive I²C/SPI serial control port for easy device and volume configuration. The CS3318 includes arrays of well-matched resistors and complementary low-noise active output stages. A total adjustable range of 118 dB, in ¼ dB steps, is spread evenly over 96 dB of attenuation and 22 dB of gain. The CS3318 implements configurable zero-crossing detection to provide glitch-free volume-level changes. The I²C/SPI control interface provides for easy system integration of up to 128 CS3318 devices over a single 2- wire I²C or 3-wire SPI bus, allowing many channels of volume control with minimal system controller I/O re- quirements. Devices may be controlled on an individual and grouped basis, simplifying simultaneous configura- tion of a group of channels across multiple devices, while allowing discrete control over all channels on an individual basis. The device operates from ±8 V to ±9 V analog supplies and has an input/output voltage range of ±6.65 V to ±7.65 V. The digital control interface operates at +3.3 V. The CS3318 is available in a 48-pin LQFP package in Commercial grade (-10° to 70° C). The CS3318 Cus- tomer Demonstration board is also available for device evaluation. Refer to “Ordering Information” on page 44 for complete details. ±8 V to ±9 V +3.3 V 8-Channel Analog Outputs I²C/SPI Serial Control 8 + _ Zero Crossing Detector I²C / SPI Control Port 8-Channel Analog Inputs 8 DECEMBER '06 DS693F1 CS3318 |
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