4316Q16-U

4316Q16-U is a single-chip Analog Engine® IC optimized for very low-voltage, low-power operation. It incorporates a high-performance class-AB voltage-controlled amplifier (VCA) and true-RMS-responding level detector. The 16-pin QSOP part is aimed at battery-operated audio applications including companding systems for wireless microphones, wireless instruments, and in-ear monitors, as well as dynamics processors of all types. It operates from a single supply voltage down to 2.7V, drawing only 1.2mA at 3.3V. The 4316's true-RMS-level detector improves the sound of the part over averaging or peak detectors in companding applications as well as sound modifiers. This makes the device ideal for many low-power dynamics processors including compressors, limiters, and gates. 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, noise gates, and AGCs.

• Pre-trimmed VCA and RMS detector
• Very low supply voltage range from 2.7V to 5.5V
• Low supply current is 1.2mA typical at (3.3V)
• Internal Vcc/2 divider and buffer
• Gain-control tempco is +0.33%/°C typical at (ref TCHIP=27°C)
• Output noise is -95dBV typical at (0dB gain, 22Hz~22KHz, R1=R2=4.7Kohm)
• Total harmonic distortion is 0.03% typical at (1KHz, 0dB (VIN = -10dBV), EC+ = EC- = Vcc/2)
• Timing current is 7.2µA typical, capacitive load is 100pF maximum
• Frequency response is ±1.5dB typical at (20Hz ~ 20KHz)
• Operating temperature range from -40°C to +85°C, 16-pin QSOP package