MILFORD, MASS., United States – News Direct – January 19, 2024 –
This society today announced its first foray into digital integrated circuits (ICs) with three cutting-edge audio sync ICs. The 7200, 7210 and 7220 are phase-locked loop (PLL) integrated circuits based on the popular JetPLL.TM technology invented by audio clock guru Chris Travis. Licensed to Sonopsis Ltd., Travis’ technology has been deployed in hundreds of thousands of professional audio products from some of the industry’s most prestigious brands. JetPLL technology combines a highly programmable digital loop for precision control with an analog loop that removes quantization noise from the digital loop.
According to Les Tyler, President of That, “These new integrated circuits represent a significant evolution for our company. So far we have focused on analog and digitally controlled analog. But Chris Travis’ powerful JetPLL® technology allowed us to apply our audio expertise to sync, which in its way is just as delicate and “analog” as mic preamps and Analog Engines®. »
Dennis Fink, Applications and Engineering Manager at That, explained the three new ICs: “The 7200 is a complete audio-focused clock system, generating a low-jitter MCLK from a WCLK unstable or its own internal generator. The 7210 is a clock cleaner, generating a low jitter MCLK from a low jitter WCLK. The 7220 is a clock generator, providing a low jitter MCLK and WCLK jitter without the need for an external reference.
All three parts feature a typical baseband jitter of 25 ps, a phase-aligned frame clock (AES11 compliant), and over 60 dB of jitter attenuation as a clock cleaner. Each is pin and code compatible with any of Cirrus Logic’s CS2x00 series clock multipliers/generators.
Mr. Travis commented: “These ICs are ideal for networked audio systems and contain built-in features to improve the sound of any digital audio system. At Sonopsis, we are proud and excited to partner with THIS for the first standalone implementations of JetPLL® integrated circuits. “.
Mr. Fink noted that the parts include an SPI/I2C port that provides complete control over a broad set of features useful for audio clocks. Fink continued: “Each IC initially starts in compatibility mode: the That 7200 matches the Cirrus CS2000, the 7210 matches the CS2100, and the 7220 matches the CS2200. Additional registers to control additional unique JetPLL functionality are accessible after startup.
Key specifications include:
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Baseband jitter 25ps rms (typical, 100Hz-40kHz)
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Wideband jitter 50ps rms (typical, 100Hz-1MHz)
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Jitter attenuation > 60 dB (above 100 Hz)
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MCLK frequency range 6-50 MHz
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Highly configurable analog and digital loops
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Clock Multiplier and PLL Frequency Synthesizer
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Generates MCLK/BCLK and Frame clocks
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Phase-aligned frame clock (according to AES11)
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Industry standard MSOP10 package
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+3.3V power supply
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