مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

The SA572 consists of two linearized, temperature - compensated gain cells (G), each with a full - wave rectifier and a buffer amplifier as shown in the block diagram. The two channels share a 2.5 V common bias reference derived from the power supply but otherwise operate independently. Because of inherent low distortion, low noise and the capability to linearize large signals, a wide dynamic range can be obtained. The buffer amplifiers are provided to permit control of attack time and recovery time independent of each other. Partitioned as shown in the block diagram, the IC allows flexibility in the design of system levels that optimize DC shift, ripple distortion, tracking accuracy and noise floor for a wide range of application requirements.

Features

• Independent Control of Attack and Recovery Time
• Improved Low Frequency Gain Control Ripple
• Complementary Gain Compression and Expansion with External Op Amp
• Wide Dynamic Range − Greater than 110 dB
• Temperature - Compensated Gain Control
• Low Distortion Gain Cell
• Low Noise − 6.0 μV Typical
• Wide Supply Voltage Range − 6.0 V - 22 V
• System Level Adjustable with External Components
• This is a Pb − Free Device

Applications

• Dynamic Noise Reduction System
• Voltage Control Amplifier
• Stereo Expandor
• Automatic Level Control
• High - Level Limiter
• Low - Level Noise Gate
• State Variable Filter