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Cirrus Logic, Inc. - CS3318-CQZ
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High-Performance 8-Channel Analog Volume Control, Commercial, Tray Container

Model: CS3318-CQZ
  • 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
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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 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.
  • 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
  • Standard Power Supply Voltages
  • ±8 V to ±9 V Analog Supply
  • +3.3 V Digital Supply
 
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