4315Q16-U

4315Q16-U is a single-chip Analog Engine® IC optimized for low-voltage, low-power operation. Incorporating a high-performance voltage-controlled amplifier (VCA) and RMS-level sensor, the surface mount part is aimed at battery-operated audio applications such as wireless microphones, wireless instruments, and in-ear monitors. It operates from a single supply voltage down to +4.5Vdc, drawing only 1.6mA. This IC also works at supply voltages up to 16Vdc, making it useful in line-operated products as well. The VCA is pre-trimmed at the wafer stage to deliver low distortion without further adjustment. It is used in applications such as companding noise reduction, wireless microphones, wireless instrument packs, wireless in-ear monitors, battery-operated dynamics processors, compressors, limiters, AGCs, De-essers.

• Pre-trimmed VCA and RMS detector
• Positive supply voltage range from +4.5V to +16V
• Supply current is 1.6mA typical at (VCC=+5V)
• VCA gain range is +60dB maximum
• Gain-control tempco is +0.33%/°C typical at (ref TCHIP=27°C)
• Output noise is -98dBv typical at (0dB gain, 22Hz to 22KHz, RIN=ROUT=20Kohm)
• Total harmonic distortion is 0.07% typical at (VIN= -5dBV, 1KHz, EC+ = EC- = 0V)
• Load resistance is 2Kohm minimum at (-250mV <lt/> VOUTRMS<lt/> +250mV, re:Vref)
• Capacitive load is 150pF maximum, timing current is 7.5µA typical
• Operating temperature range from -40°C to +85°C, 16-pin QSOP package