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THAT 5263
2-Channel Digitally Programmable Gain Controller

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fillerRoHS Compatible

 
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Features / Applications / Description
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FEATURES

• Ideal mate for THAT 1580 and 1583 preamplifiers
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• Wide gain range: 0 to 51 dB in 3 dB steps
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• Wide supply range: ±5V to ±17V
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• Wide output swing: +29.6 dBu (±17V sup.)
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• Wide input swing: +29.6 dBu (±17V sup.)
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• Low THD+N: < 0.003% @ 24 dB gain
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• Zero-crossing detector minimizes switching noise
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• Daisy Chainable SPI interface
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• Two general-purpose digital outputs
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• Small 5mm x 5mm QFN24 package

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filler Datasheet Download
5263 Datasheet (443 kB)
2-Channel Digital Audio Preamplifier Controller

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THAT 5263 Block Diagram

DESCRIPTION

The THAT 5263 is a 2-channel digital preamplifier controller intended for use with low-noise, analog, differential audio preamplifiers such as the THAT 1580 and 1583. The 5263 controls gain from 0dB to 51 dB in 3dB steps while preserving low noise and distortion. Operating from ±5V to ±17V analog supplies, it supports input signal levels as high as +29.6 dBu (at 0dB gain, ±17V supplies, and THAT1580) without an input pad. Used with a THAT 1580 preamplifier IC, equivalent input noise (EIN) at 51 dB gain is -128.3 dBu (20 Hz - 20 kHz bandwidth, 150-ohm source).

Each 5263 channel includes a zero-crossing detector to minimize glitches (zipper noise) during gain adjustments. A built-in timer forces a gain change if no zero crossing occurs within 24 msec of a gain-change command. A busy pin (BSY) allows synchronization of external events and the 5263's own GPOs with the zero-crossing detector.

The 5263 is controlled via an industry standard serial-peripheral interface (SPI) port. The part mates perfectly with the THAT 1580 and 1583 Differential Audio Preamplifier ICs. Together, these combinations provide high performance, space-saving solutions for digitally-controllable audio preamplifiers. However, the 5263 may also be used to control discrete pre-amplifiers.
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APPLICATIONS
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• Digitally controlled microphone preamplifiers
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• Digitally-controlled instrumentation amplifiers
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• Digitally-controlled differential amplifiers
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• Audio mixing consoles
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• Computer audio interfaces
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• Audio distribution systems
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• Digital audio snakes
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• Audio recorders
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Key Specifications (see 5263 datasheet for complete specifications)
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fillerParameter
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Conditions
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5263
Typical

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Units
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fillerAnalog Supply Voltage

Referenced to AGND

4.75 - 17

V
fillerDigital Supply Voltage
Referenced to DGND
3.0 - 3.6
V
fillerAnalog Supply Current
No signal
1.6
mA
fillerDigital Supply Current

No signal

50
µA
fillerMax Differential Input Level

±17 volt supplies, 0 dB gain

29.6
dBu
fillerMax Differential Output Level
±17 volt supplies
29.6
dBu
fillerGain Range Step Size 0 dB < Gain > 51 dB 3 dB
fillerMax Gain Range Error 0~39 dB gain setting
42~51 dB gain setting
±0.5
±1.0
dB
Packaging / Pricing / Samples
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Model Package Order Number Pricing
(1000)
Min Order
Quantity
Reference
5263 24 pin QFN 5263N24-U $3.52 46 Request
Samples
24 pin QFN
Tape & Reel
5263N24-UR Contact us 2000
158X/5263
Demo Board
158X/5263-DEMO $250.00 1
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All 5263 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 to qualified applicants.
Pricing is subject to change.

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Design Notes (as PDF files)
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Design Note 140   Input and Output Circuits for THAT Preamplifier ICs (244k)
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Related Products
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  Differential Audio Preamplifiers  
fillerTHAT 1580 Low Noise Differential Audio Preamplifier 1580 Datasheet
fillerTHAT 1583 Low Noise Differential Audio Preamplifier 1583 Datasheet
  Gain Controllers  
fillerTHAT 5171 Digital Preamplifier Controller 5171 Datasheet
fillerTHAT 5173 Low-Cost Digital Preamplifier Controller 5173 Datasheet
fillerTHAT 5263 2 Channel Digital Preamplifier Controller 5263 Datasheet
  Digitally Controlled Microphone Preampifiers  
fillerTHAT 1580/5171 5171 Digital Microphone Preamplifier Chip Set  
     
fillerTHAT 1580/5173 5173 Digital Microphone Preamplifier Chip Set  
fillerTHAT 1583/5173 5173 Digital Microphone Preamplifier Chip Set  
     
fillerTHAT 1580/5263 5263 Digital Microphone Preamplifier Chip Set  
fillerTHAT 1583/5263 5263 Digital Microphone Preamplifier Chip Set  
  Audio Preampifiers  
fillerTHAT 1510/1512 Low Noise Single Ended Output Audio Preamplifiers 1510/1512 Datasheet
     
Additional Resources
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Digitally Controlled Microphone Preamplifier Selector
A side by side comparison of the features and specifications of our digitally controlled microphone preamplifier chip sets.

158X/5263-DEMO Digitally-Controlled Mic Preamp Demo Board - This THAT Digitally-Controlled Mic Preamp Demo Board (US$250) allows developers to evaluate the performance of the THAT5263 IC. The demo board provides a balanced audio input on a Neutrik "combo" connector with 48V phantom power, and a balanced audio output on XLR and ¼" TRS connectors. The supplied graphical user interface (GUI) controls all functions in the 5263 chip via USB. A prototyping area is available for adding or modifying circuitry. See the 5263-DEMO Datasheet for more information.

5263 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.

5263 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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