The SBOS230A is a high-performance, 4-channel audio volume control designed for professional and high-end consumer audio systems. It offers low noise and distortion, supports 0.5dB gain and attenuation range, and can be widely used in audio amplifiers, mixing consoles, multi-track recorders, broadcast studio equipment, musical instruments, effects processors, A/V receivers, car audio systems, etc.
The PGA4311 is a high-performance, 4-channel audio volume control designed for professional and high-end consumer audio systems. It utilizes internal high-performance operational amplifier stages to achieve low noise and distortion while driving 600Ω loads directly without buffering.
The device features a 3-wire serial control interface that supports connection to various host controllers and allows for daisy-chaining multiple devices. Key specifications include a gain range of +31.5dB to -95.5dB with 0.5dB steps, a dynamic range of up to 120dB, and low interchannel crosstalk of -130dBFS.
| Channels | 4-Channel |
|---|---|
| Gain Range | +31.5dB to -95.5dB |
| Step Size | 0.5 dB |
| Dynamic Range (U-Grade) | 120dB |
| THD+N at 1kHz (U-Grade) | 0.0004% |
| Interchannel Crosstalk | -130dBFS |
| Package Type | SOP-28 |
The device provides a wide gain and attenuation range from +31.5dB to -95.5dB with 0.5dB steps.
With +5V and -5V supplies, the maximum input or output voltage range is 7.5Vp-p.
The device requires +5V Analog, -5V Analog, and +5V Digital power supplies.