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THAT4305Q16-U 'Analog Engine' Dynamics Processor

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gbp 4.26 3.29 2.64 2.28 2.05 1.87

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Available Stock: 98

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Features

  • Pre-trimmed VCA and RMS-level detector
  • Wide supply voltage range: ±4.5V to ±16V
  • Low supply current: 3.5 mA typ. (±15V)
  • Wide dynamic range: 117 dB (VCA),60 dB (RMS-level detector)

The THAT4305 is a single-chip Analog Engine optimized for low-cost applications.

It incorporates a high-performance Blackmer® voltage-controlled amplifier (VCA) and log-responding RMS-level sensor. The VCA and RMS detector are pre-trimmed at wafer stage to deliver low distortion without further adjustment.

Available only in a small (QSOP) surface- mount package, the 4305 is aimed at line-operated audio applications such as compressor/limiters, gates, and other dynamic processors. The part normally operates from a split supply voltage up to +16 Vdc, drawing only 3.5 mA at +15 V. This IC also works at supply voltages as low as +4.5 V, making it useful in some battery-operated products as well.

The 4305 was developed specifically for use in low-cost dynamics processors. Both VCA control ports and the detector input and output are available for user configured connection. As a result, the part is extremely flexible and can be configured for a wide range of applications including single- and multi-band companders, digital overload protectors, voltage-controlled faders, level indicators, etc.

What really sets the 4305 apart from other manufacturers' offerings is the transparent sound of its Blackmer VCA, coupled with its accurate true-RMS level detector. This makes the IC useful in a wide range of analog audio products

Demonstration Board THAT4305DEMO is available for this product.

  • Manufacturer: that
  • Outline: QSOP-16
  • Part Status: Active
  • Pack size: Tube 98

UK Customers

Orders below 100.00 can be delivered by Registered Post at a rate of 3.50 (allow 3-5 days) or a next day tracked courier at a rate of 9.00.

Orders above 100.00 are delivered by a next day tracked courier at a rate of 9.00.


European Customers

Orders below 100.00 can be delivered by Airmail (allow 5-7 days) at a rate of 5.50 or by a tracked courier at a rate of 19.50 (1-2 days).

Orders to European countries above 100.00 are delivered by a tracked courier at a rate of 19.50 (1-2 days).


US Customers

Orders below $110.00 can be delivered by Airmail at a rate of $9.00 (allow up to 10 days) or by tracked courier at a rate of $30.00 (1-3 days).

Orders above $110.00 are delivered by a tracked courier at a rate of $30.00 (1-3 days).


International Customers

Orders below $50.00 can be delivered by post (allowing up to 28 days) at a rate of $18.00 or by a tracked courier at a rate of $49.00.

Orders above $50.00 are delivered by tracked courier at a rate of $49.00.


All prices shown exclude VAT

TECHNICAL SPECIFICATIONS

 MinTypMax
Supply Voltage+/-4.5V-+/-16V
Supply Current+/-2mA-+/-5mA
VCA SECTION
Control Constant-+/-6.5mV/dB-
Gain Range-60dB-+60dB
Output Noise(0dB gain)--97.5dBV-
THD-0.07%0.15%
Dynamic Range-117dB-
DETECTOR SECTION
Output Scaling+6.2mV/dB
Dynamic Range-60dB-
Bandwidth->20kHz-
Crest Factor-10-

DATASHEETS & RELATED RESOURCES

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