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THAT 1570/5173

Update Time ： 2018-06-27 View ： 2774

Features / Applications / Description

FEATURES
• Versatile two-chip solution:
- 1570 Programmable analog gain block
- 5173 Digital gain controller

• Accommodates full pro audio levels
  +27 dBu max input with ±17V supplies

• Programmable gain: 0 to 60 dB in 3 dB steps

• Low Noise: -127 dBu EIN, 60 dB gain, Rs=150 Ω

• Low THD+N: < 0.001% @ 1kHz, Up to 42 dB gain

• Integrated servo minimizes output offset

• Integrated zero crossing detector minimizes switching noise

• Daisy Chainable SPI control interface

• Four general purpose outputs (GPOs)

• Small footprint:
   4 x 4 mm QFN16 (1570)
   5 x 5 mm QFN24 (5173)

Product Datasheets Download 5173 Datasheet (350 kB) Digital Mic Preamp Controller 1570 Datasheet (142kB) Differential Audio Preamplifier	Demo Board Datasheet & Software 5173-DEMO Datasheet (940 kB PDF file) 5173-DEMO Software (3 MB ZIP file)

THAT 1570/5173 Digital Microphone Preamp Circuit

DESCRIPTION

The THAT1570 and THAT5173 ICs enable digitally controlled microphone preamplifier applications with unprecedented performance. Operating on maximum ±17V supplies, the chipset accepts pro audio input levels (+27dBu max) without an input pad. Gain is adjustable from 0dB to 60dB in 3dB increments. The 5173’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 1.75 mV.

Four general purpose outputs on the 5173 can be connected to a variety of peripheral functions, e.g. input pad, phantom power switches, signal routing switches, LED indicators, etc. Separating the analog mic pre front end (THAT1570) from the digital functions and switched resistor ladder (THAT5173) allows each IC to be optimized for high performance.

Key Specifications (see 5173 datasheet for complete specifications)

Parameter	Conditions	1570/5173 Combination	Units
Analog Supply Voltage	Referenced to AGND	±5 to ±17	V
Digital Supply Voltage	Referenced to DGND	3.3	V
Analog Supply Current	No Signal	15.1	mA
Digital Supply Current	No Signal	2	uA
Max Differential Input Level	±17 volt supplies, 0 dB gain	27	dBu
Max Differential Output Level	±17 volt supplies	27	dBu
Equivalent Input Noise, Rs = 150 Ω	0 dB gain 30 dB gain 60 dB gain	-106 -122 -127	dBu
THD + N	0 dB gain 30 dB gain 60 dB gain	0.001 0.001 0.005	%
Bandwidth (small signal)	0 dB gain 30 dB gain 60 dB gain	8 2 200	MHz MHz kHz
Slew Rate	—	53	V/µs
Dynamic Range	Power supply voltage: ±17V 0 dB gain 30 dB gain 60 dB gain	133 119 94	dB

Model	Package	Order Number	Pricing (1000)	Min Order Quantity	Reference
1570	16 pin QFN	1570N16-U	$7.86*	92	Request Samples
1570	16 pin QFN Tape & Reel**	1570N16-UR		2000
5173	24 pin QFN	5173N24-U		46
5173	24 pin QFN Tape & Reel**	5173N24-UR		2000
1570/5173 Demo Board	—	1570/5173DEMO	$250.00	1
All 1570 and 5173 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 5173 are purchased as a pair. Pricing varies when purchased separately. **There is a small additional charge for tape and reel packaging.

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.

1570/5173 Digitally-Controlled Mic Preamp Demo Board - The THAT 1570/5173 Digitally-Controlled Mic Preamp Demo Board (US$250) allows developers to evaluate the performance of the THAT1570 / THAT5173 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 5173 chip via USB. A prototyping area is available for adding or modifying circuitry. See the 5173 DEMO Datasheet for more information.

1570 and 5173 Surface Mount Adapter Boards - 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.

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.

5173 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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THAT 1570/5173