PGA2311 Texas instruments

PGA2311

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PGA2311

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Описание

The PGA2311 device is a high-performance, stereo audio volume control designed for professional and high-end consumer audio systems. The PGA2311 uses an internal high-performance operational amplifier to yield low noise and distortion. The PGA2311 also provides the capability to drive 660-Ω loads directly without buffering. The 3-wire serial control interface allows for connection to a wide variety of host controllers, in addition to support for daisy-chaining of multiple PGA2311 devices.

Digitally-Controlled Analog Volume Control:
- Two Independent Audio Channels
- Serial Control Interface
- Zero Crossing Detection
- Mute Function
Wide Gain and Attenuation Range:
+31.5 dB to −95.5 dB with 0.5-dB Steps
Low Noise and Distortion:
- 120-dB Dynamic Range
- 0.0004% THD+N at 1 kHz (U-Grade)
- 0.0002% THD+N at 1 kHz (A-Grade)
Noise-Free Level Transitions
Low Interchannel Crosstalk: −130 dBFS
Power Supplies: ±5-V Analog, +5-V Digital
Available in PDIP-16 and SOIC-16 Packages
Pin- and Software-Compatible With the Crystal
CS3310

Number of channels	2
Power supply (V)	+/-5
Gain & attenuation (dB)	+31.5 to -95.5 with 0.5dB steps
Gain error (gain = 31.5 dB) (dB)	±0.05
THD + N at 1 kHz (%)	0.0002
Interchannel crosstalk at 1 kHz (dBFS)	-130
Dynamic range (dB)	120
Voltage swing with max supply (VPP)	7.5
Load capacitance (µF)	0.0001
Operating temperature range (°C)	-40 to 85
Features	Two Independent Audio Channels