Stereo digital volume control provides two independent low-distortion audio channels for audio systems. A 16-bit three-wire serial interface sets left and right channel levels and supports daisy-chaining for multichannel designs. The control range spans 127 dB in 0.5 dB steps, with 95.5 dB attenuation and up to 31.5 dB gain. The device operates from ±5 V analog supplies with a +5 V digital supply and supports a ±3.75 V input and output range. Typical audio performance includes 0.001% THD+N and 116 dB dynamic range over a 10 Hz to 20 kHz measurement bandwidth.
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| Function | Stereo digital volume control |
| Audio channels | 2 independent channels |
| Control interface | 3-wire serial interface |
| Serial control word length | 16bit |
| Volume step size | 0.5dB |
| Attenuation range | 95.5dB |
| Gain range | +31.5dB |
| Total adjustable range | 127dB |
| THD+N, typical | 0.001% |
| Dynamic range, typical | 116dB |
| Interchannel isolation, typical at 1 kHz | 110dB |
| Input/output voltage range | ±3.75V |
| Positive analog supply voltage | 4.75 to 5.25V |
| Positive digital supply voltage | 4.75 to VA+V |
| Negative analog supply voltage | -5.25 to -4.75V |
| Operating ambient temperature | 0 to 70°C |
| Power consumption, typical | 72mW |
| Package | 16-pin Plastic SOIC |
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