CS3318

www.DataSheet4U.com CS3318 8-Channel Analog Volume Control Features  Complete Analog Volume Control 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 2wire I²C or 3-wire SPI bus, allowing many channels of volume control with minimal system controller I/O requirements. Devices may be controlled on an individual and grouped basis, simplifying simultaneous configuration 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 Customer Demonstration board is also available for device evaluation. Refer to “Ordering Information” on page 44 for complete details....