4 通道、+/-5V 音頻音量控制
| Number of channels (#) | 4 |
| Power supply (V) | +/-5 |
| Gain & attenuation (dB) | +31.5 to -95.5 with 0.5dB steps |
| THD + N @ 1 kHz (%) | 0.0002 |
| Interchannel crosstalk @ 1 kHz (dBFS) | -130 |
| Gain error (gain=31.5dB) (dB) | ±0.05 |
| Dynamic range (dB) | 120 |
| Voltage swing with max supply (Vpp) | 7.5 |
| Load capacitance (pF) | 100 |
| Operating temperature range (C) | -40 to 85 |
| Rating | Catalog |
- DIGITALLY-CONTROLLED ANALOG VOLUME CONTROL:
???Four Independent Audio Channels
???Serial Control Interface
???Zero Crossing Detection
???Mute Function - WIDE GAIN AND ATTENUATION RANGE:
???+31.5dB to –95.5dB with 0.5dB Steps - LOW NOISE AND DISTORTION:
???120dB Dynamic Range
???0.0004% THD+N at 1kHz (U–Grade)
???0.0002% THD+N at 1kHz (A–Grade) - NOISE-FREE LEVEL TRANSITIONS
- LOW INTERCHANNEL CROSSTALK:
???–130dBFS - POWER SUPPLIES: ±5V Analog, +5V Digital
- AVAILABLE IN AN SOP-28 PACKAGE
- APPLICATIONS
- AUDIO AMPLIFIERS
- MIXING CONSOLES
- MULTI–TRACK RECORDERS
- BROADCAST STUDIO EQUIPMENT
- MUSICAL INSTRUMENTS
- EFFECTS PROCESSORS
- A/V RECEIVERS
- CAR AUDIO SYSTEMS
The PGA4311 is a high?performance, 4-channel audio volume control designed for professional and high-end consumer audio systems. Using high performance operational amplifier stages internal to the PGA4311 yields low noise and distortion, while providing the capability to drive 600
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 PGA4311 devices.
