Cirrus Logic CS3308/18 8-Channel Analog Volume Controls
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With superior analog performance and proprietary control port technologies, these devices are designed to target multi-channel, high-performance stereo volume controls, with lower overall system cost, smaller board space requirement, but do not sacrifice performance.
The CS3308/18 family offers the best price/performance of any high-performance multi-channel analog volume control in its class as well as the highest density of design, allowing designers to achieve the best analog performance at a lower cost.
The unique Volume & Muting Control Architecture provides the ability to control each channel on an individual and master basis.
Individual control allows the volume and mute state of a single channel to be changed independently from all other channels within the device.
Master control allows the volume and mute state of multiple channels to be changed simultaneously with a single register write.
The CS3308/18 provides three master controls, and each may be configured to affect any group of channels within a device.
Evaluation boards are available under product codes CDB3308 and CDB3318
Features
- Complete Analog Volume Control
- 8 Independently Controllable Channels
- 3 Configurable Master Volume and Muting Controls
- -96 dB to +22 dB Wide Adjustable Volume Range in ¼ dB Steps
- Low Distortion & Noise
- 127 dB Dynamic Range (CS3318)
- 123 dB Dynamic Range (CS3308)
- -110 dB THD+N
- 120 dB Inter-channel Isolation
- Noise-Free Level Transitions
- Zero Crossing Detection with Programmable Time-Out
- Comprehensive Serial Control Port
- Supports I²C and SPI Communication
- Independent Control of up to 128 Devices on a Shared I²C or 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 (CS3318)
- ±5V Analog Supply (CS3308)
- +3.3 V Digital Supply