Following a lengthy development process, Sound Semiconductors have announced the introduction of a new-generation Bucket Brigade Delay IC (Integrated Circuit).
The SSI2100 is a 512-Stage BBD that offers a wide range of delay times using clock frequencies from 1kHz to over 2MHz. The company say that they took great care to faithfully reproduce the bucket-brigade chain, with the aim of preserving the ‘mojo’ of the much-loved analogue delay circuits. The new offering is available in a compact SOP-8 package, and is believed to be the first BBD IC to be offered in surface-mount form.
Sound Semiconductor took advantage of a modern CMOS IC process that not only resulted in a reduced chip die size, but also allowed for the addition of some new features. The SSI2100 includes an on-chip clock driver with anti-phase outputs that will accept a single TTL/CMOS 5V or 3.3V input that can be easily generated by a wide range of sources, negating the need for a traditional companion clock generator IC; in addition, the SSI2100 incorporates a clock tree to distribute the two anti-phase clocks throughout the chain for improved fidelity. The SSI2100 also internally provides the legacy ’14/15 VGG’ supply voltage needing only an external capacitor.
Another innovation comes in the form of a new (patent pending) circuit that provides noiseless gain, allowing multiple SSI2100s to be connected to accommodate longer delay times without having to recalibrate inputs and outputs. An additional benefit to daisy-chaining is the ability to access intermediate feedback taps in order to create interesting reverbs and other psychoacoustic effects.
Pricing & Availability
The SSI2100 is available now, priced at $1.08 for orders of 1000 pieces. Samples are available to qualified OEMs. More information is available on the Sound Semiconductors website.
