|
![]() |
||||
October 2009 - For immediate release ... | ||||
![]() |
THAT Introduces Digitally-Programmable Microphone Preamp |
![]() |
||
— Offers significant improvements in dynamic range & design flexibility![]() |
![]() |
|||
IMPORTANT: The 1570 is not recommended for new designs. Milford, MA, USA – THAT Corporation has introduced a new digitally programmable microphone preamplifier that offers unprecedented performance and flexibility for designers of pro audio equipment. The THAT1570/5171 paired chipset comprises a low-noise differential audio preamplifier (1570) and a separate high-performance digital preamplifier controller (5171). Compared to competing single-chip implementations that operate from only ±5V supplies, the 1570/5171 enables much greater flexibility with up to 130dB dynamic range when operating from ±17V supplies, allowing designers to tradeoff power consumption versus dynamic range. The part-pair enables gain to be programmed over 56 1-dB steps from 13.6dB to 68.6dB. An additional gain setting of +5.6dB allows the combination to accept line inputs up to +22dBu. Other high-performance specifications and features include: low noise of 1.5nV/√Hz @ 68.6dB gain, and 20nV/√Hz @ 5.6dB gain; low THD+N of 0.0003% @ 21.6dB gain; and wide bandwidth of 1.8MHz @ 40.6dB gain. In addition, integrated features simplify design, including: a servo for minimizing dc offset; a zero crossing detector and other patent pending techniques for minimizing gain-switching noise, and four general-purpose digital outputs. Les Tyler, THAT Corporation’s president, said "THAT’s 2-chip approach supports higher supply rails than single-chip solutions yet requires even less printed circuit board space.” He continued, “Those high supply rails allow our solution to support full pro audio input levels, adding up to 10dB more dynamic range. The only other way to achieve this performance is to ‘roll your own’ discrete design, which takes weeks or even months to design, debug and build. And, when you’re finished, you’d have a board full of components costing many times the price of the THAT1570/5171 chipset." Gary Hebert, THAT’s chief technology officer, added, “Integrating everything onto a single chip inherently requires performance tradeoffs. By planning carefully, we integrated functional blocks using the optimal semiconductor process for each essential function. The result is better performance.” THAT’s 1570/5171 can be applied to: audio mixing consoles; digital audio snakes, audio distribution systems, PC audio breakout boxes, and more. Price and availability Demo board available About THAT Corporation For more information, contact:
Editorial Contact: |
||||
![]() |
![]() |
![]() |