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Analog Engine® ICs

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  THAT 4301 Analog Engine IC Our single-chip audio dynamics processors, dubbed "THAT Analog Engines®," combine in one IC all the active circuitry needed to construct a wide range of dynamics processors. Each of the 43xx series includes a high-performance, exponentially controlled Blackmer® voltage controlled amplifier (VCA) and a log-responding RMS-level sensor. The 4301 and 4320 include three general-purpose opamps allowing more complex signal processing.
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THAT4301 - The 'Original' versatile compressor/ limiter/ expander system for dual supply voltages.
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THAT4305 - A low-cost, basic compressor/ limiter/ expander system for dual supply voltages.
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THAT4320 - A versatile compressor/ limiter/ expander system for single supply voltages optimized for low-voltage, low-power operation.
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THAT4315 - A low-cost basic compressor/ limiter/ expander system for single supply voltages designed for low-voltage, low-power operation.
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THAT4316 - A very low-voltage, low-power basic compressor/ limiter/ expander system for single supply voltages.
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  Analog Engine Selector
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  For a printable PDF version of this guide follow this link: THAT Analog Engine Selector
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  THAT 4301 THAT 4305 THAT 4320 THAT 4315 THAT 4316

 

High
Performance
Analog Engine
Low-Cost
Analog Engine
Low-Voltage
Low-Power
Analog Engine

Low-Voltage
Low-Cost
Analog Engine

Very
Low-Voltage
Analog Engine

 Supply voltage

±7 ~ ±15 V

±4.5 ~ ±16 V

4.5 ~ 16 V

4.5 ~ 16 V

2.7 ~ 5.5 V

 Supply type

Dual Dual Single Single Single

 Supply current

~12 mA 3.5 mA 3.7 mA 1.6 mA 1.2 mA

 Opamps
  included

Yes No Yes No No

 Cost

Moderate Low Moderate Low Low

 VCA THD

< 0.03 % ~ 0.07 % ~ 0.05 % ~ 0.07 % ~ 0.07 %

 Adjustable
 symmetry

Yes No No No No

 VCA control
  ports

2 (+/-) 2 (+/-) 1 (+) 2 (+/-) 2 (+/-)

 VCA gain range

-100 ~ +40 dB ± 60 dB -100 ~ +40 dB ± 60 dB ± 50 dB

 Packages

DIP20
SO20 Wide
QSOP-16 QSOP-28
QFN-24
QSOP-16 QSOP-16

 Datasheet link

4301
Datasheet

4305
Datasheet
4320
Datasheet
4315
Datasheet
4316
Datasheet
 
     
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