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THAT 4316
Pre-trimmed, Very Low-Voltage, Low-Power Analog Engine®

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fillerRoHS Compatible

 
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Features / Applications / Description
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FEATURES
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• Pre-timmed VCA and RMS detector
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• Very low supply voltage: 2.7 V - 5.5 V
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• Low supply current: 1.2 mA typ. (3.3 V)

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• Internal Vcc/2 divider and buffer
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• Wide dynamic range: 115 dB as compander

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Datasheet Download
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4316 Datasheet (201 kB)
Pre-trimmed Very Low-voltage Low-power Dynamics Processor
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4316 2:1 Compressor
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DESCRIPTION

The THAT4316 is a single-chip Analog Engine® 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. The 4316 operates from a single supply voltage down to 2.7V, drawing only 1.2mA at 3.3V.

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APPLICATIONS
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• Companding noise reduction systems
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— Wireless microphones
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— Wireless instrument packs
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— Wireless in-ear monitors

• Battery-operated dynamics processors
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— Compressors
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— Limiters
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— Noise Gates
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— AGCs
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Key Specifications (see 4316 datasheet for complete specifications)
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 Parameter
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Conditions
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Typical
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Units
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 Power supply voltage

2.7 to 5.5

V

 Supply current

3.3V

1.2

mA

 VCA

 Dynamic Range

115

dB

 Gain Range

Ec+ or Ec- used singly

-50 to +50

dB

 Total Harmonic Distortion

1 kHz, 0 dB (Vin=-10 dBV)

0.03

%

 Control Constant
 (both positive & negative- 
 sense control available)

-40 dB to +40 dB

± 6.1

mV/dB

 Output Noise

0 dB gain

-95

dBV

 RMS Detector

 Averaging Method

Root Mean Squared (RMS)

 Output Scaling

6.1

mV/dB

 Dynamic Range

60

dB

 Bandwidth

> 20

kHz

Packaging / Pricing / Samples
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Model

Package

Order Number

Pricing
(1000)

Min Order
Quantity

Samples

4316

16 Pin QSOP

4316Q16-U

$1.53

98

Request
Samples

16 Pin QSOP
Tape & Reel

4316Q16-UR

Contact us

2000

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  All 4316 parts are RoHS compliant.
  Minimum Order Quantity (MOQ) is one tube or one reel. Parts must be ordered in multiples of the MOQ.
  Samples are available for qualified applicants.
  Pricing is subject to change.
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Design Notes (as PDF files)
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Design Note 00A   Basic Compressor/Limiter Design (113k) (formerly Application Note 100A)

Design Note 01A   The Mathematics of Log-Based Dynamic Processors (64k) (formerly Application Note 101A)

Design Note 02  Digital Gain Control with Analog VCAs (106k) (formerly Application Note 102)

Design Note 03  Signal Limiter for Power Amplifiers (95k) (formerly Application Note 103)

Design Note 04   Improving Loudspeaker Signal Handling Capability (217k) (formerly Application Note 104)

Design Note 05   A Low Parts Count, Two-Slope Compressor (78k) (Application Note 105)

Design Note 100   A Fully Adjustable Noise Gate (69k)

Design Note 101   Peak Detection with the THAT4301 (37k)

Design Note 102   Adjustable Ducker using the THAT 4301 (76k)

Design Note 107/111   A Simple Effective Soft-Knee Compressor / Limiter (81k)

Design Note 108   Single Chip Automatic Gain Control  (73k)

Design Note 112   LED Bar-Graph Compression Indictor (83k)

Design Note 113   THAT4301 Gain Reduction Indicator (33k)

Design Note 114   Adaptive Attack and Release Rates using THAT RMS Detectors (48k)

Design Note 115   Fully Adjustable Compressor/Limiter (46k)

Design Note 116   Techniques for Stereo Volume Control (126k)

Design Note 117   Input Limited for ADCs (120k)

Design Note 118   High Performance Stereo AGC (90k)

Design Note 119   Wide Ranging dB Meter (177k)

Design Note 125   The “One Knob Squeezer”  (90k)

Design Note 128   What’s a PTAT Temp. Coefficient, & Where Does It Come From?  (64k)

Design Note 131   Dealing with the PTAT Coefficient (75k)

Design Note 132   Alternate Method of Indicating Compression (52k)
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Related Products
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  Other Analog Engines

 
fillerTHAT 4301 High Performance Analog Engine for dual supply voltages. 4301 Datasheet
fillerTHAT 4305 Low-cost basic Analog Engine for dual supply voltages. 4305 Datasheet
fillerTHAT 4320 Low-voltage, low-power versatile Analog Engine for single supply voltages. 4320 Datasheet
fillerTHAT 4315 Low-voltage, low-power basic Analog Engine for single supply voltages. 4315 Datasheet
  Voltage Controlled Amplifiers (VCAs)  
fillerTHAT 2180 Series Pre-trimmed Blackmer VCAs 2180 Series Datasheet
fillerTHAT 2181 Series Trimmable Blackmer VCAs 2181 Series Datasheet
fillerTHAT 2162 Dual Blackmer VCAs 2162 Datasheet
  RMS-level Detector  
fillerTHAT 2252 RMS-Level Detector 2252 Datasheet
     
Additional Resources
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Analog Engine Selector
A side by side comparison of the features and specifications of our Analog Engine dynamic processor ICs.

4316 Surface Mount Adapter Board - For our integrated circuits which are only available in surface mount packages THAT Corporation offers adapter boards which allow one of these surface-mount ICs to interface to a circuit board via traditional thru-hole mounting. These adapters make it easy for a design engineer to evaluate our surface-mount products on a prototype board without having to employ SMT technology. Adapter boards are available to qualified applicants.

Harsh Environment Packaging - TT Semiconductor repackages THAT Corporation’s IC products in ruggidized plastic for the medical, aerospace, defense, and heavy industrial marketplaces.

The History of VCAs - THAT Blackmer® VCAs are the successors to the original dbx® line of VCAs. Their development for professional audio use has a long history, and can provide some insight into the care and feeding of these essential devices.

4316 Material Data Declaration Sheet
Material Data Declaration Sheets (MDDS) disclose the hazardous materials in our integrated circuits as required by the European RoHS directive.
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