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THAT IC

THAT 1570/5171

发布时间 : 2018-06-27 浏览次数 : 2633
  • Features / Applications / Description
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    FEATURES

    • Versatile two-chip solution: 
     - 1570 Programmable analog gain block 
     - 5171 Digital gain controller
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    • Accommodates full pro audio levels
      +21 dBu max input @ min gain and ±15V supplies
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    • Programmable gain:
      +5.6 dB,  +13.6 ~ 68.6 dB in 1dB steps
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    • Low Noise: -128 dBu EIN, 68.8 dB gain, Rs = 150 Ω
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    • Low THD+N: 0.0003% @ 21.6 dB gain
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    • Integrated servo minimizes dc offset
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    • Integrated zero crossing detector minimizes zipper noise
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    • Addressable SPI control interface with
       read-back Operates up to 10MHz
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    • Four general purpose outputs (GPOs)
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    • Small footprint: 
       4 x 4 mm QFN16 (1570) 
       7 x 7 mm QFN32 (5171)

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    Datasheet Download
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    5171 Datasheet (362 kB)
    High Performance Digital Preamplifier Controller
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    1570 Datasheet (130kB)
    Differential Audio Preamplifier
    Demo Board Datasheet & Software
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    1570-5171-DEMO Datasheet 
    (392 kB PDF file)
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    1570-5171-DEMO Software 
    (1.125 MB ZIP file)
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    THAT 1570/5171 Digital Microphone Preamp Circuit

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    DESCRIPTION

    The THAT1570 and THAT5171 ICs enable digitally controlled microphone preamplifier applications with unprecedented performance. Operating on maximum ±17V supplies, the chipset accepts pro audio input levels (+22dBu max) without an input pad. Gain is adjustable to 5.6dB, and from 13.6dB to 68.6dB in 1dB increments. The 5171’s built-in zero-crossing detector and other patent-pending techniques for reducing zipper noise enable very smooth and silent gain changes. A differential servo reduces output offsets to less than 1.5 mV.

    Four general purpose outputs on the 5171 can be connected to a variety of peripheral functions, e.g. input pad, phantom power switches, signal routing switches, LED indicators, etc. The addressable SPI interface on the 5171 supports read-back, enabling fault-tolerant control software to verify proper operation. Separating the analog mic pre front end (THAT1570) from the digital functions and switched resistor ladder (THAT5171) allows each IC to be optimized for high performance.
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    Key Specifications (see 5171 datasheet for complete specifications)
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    fillerParameter
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    Conditions
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    1570/5171
    Combination

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    Units
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    fillerAnalog Supply Voltage
    Referenced to AGND 5 - 17 V
    fillerDigital Supply Voltage
    Referenced to DGND 3.0 - 3.6 V
    fillerAnalog Supply Current
    No Signal 15.8 mA
    fillerDigital Supply Current
    No Signal 2 uA
    fillerMax Differential Input Level
    21 dB
    fillerMax Differential Output Level
    27 dB
    fillerEquivalent Input Noise, Rs = 150 Ω
    0 dB gain
    30 dB gain

    60 dB gain

    -108
    -124
    -128

    dBu
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    0 dB gain
    30 dB gain
    60 dB gain
    0.0006
    0.0005
    0.006
    %
    fillerBandwidth (small signal)
    0 dB gain
    30 dB gain
    60 dB gain
    6
    1.7
    170
    MHz
    MHz
    kHz
    fillerSlew Rate

    53
    V/µs
    fillerDynamic Range

    Power supply voltage: ±17V
    0 dB gain
    30 dB gain
    60 dB gain


    127
    121
    95
    dB
  • Model Package Order Number Pricing
    (1000)
    Min Order
    Quantity
    Reference
    1570 16 pin QFN 1570N16-U $10.35* 92 Request
    Samples
    16 pin QFN
    Tape & Reel**
    1570N16-UR 2000
    5171 32 pin QFN 5171N32-U 52
    32 pin QFN
    Tape & Reel**
    5171N32-UR 2000
    1570/5171
    Demo Board
    1570/5171DEMO $250.00 1

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    All 1570 and 5171 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.

    * Price when 1570 and 5171 are purchased as a pair. Pricing varies when purchased separately.

    **There is a small additional charge for tape and reel packaging.
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  • Design Note 140   Input and Output Circuits for THAT Preamplifier ICs (244k)


    More Analog Secrets Your Mother Never Told You (915k)

    At the 127th AES Convention attendees were invited to attend a THAT exhibitor seminar — "More Analog Secrets Your Mother Never Told You". A sequel to our popular first "Analog Secrets" seminar, this new presentation exposes more design secrets including “extreme performance” microphone preamps, protecting audio inputs/outputs during phantom power faults, and maintaining high dynamic range in low cost applications.

  • Digitally Controlled Microphone Preamplifier Selector

    A side by side comparison of the features and specifications of our digitally controlled microphone preamplifier chip sets.


    1570/5171 Digitally-Controlled Mic Preamp Demo Board - The THAT 1570/5171 Digitally-Controlled Mic Preamp Demo Board (US$250) allows developers to evaluate the performance of the THAT1570 / THAT5171 chipset. 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 5171 chip via USB. A prototyping area is available for adding or modifying circuitry. See the 1570/5171 DEMO User's Guide for more information.


    1570 Material Data Declaration Sheet

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


    5171 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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