For the earlier few days, we now have been following the story of the smaller A5 chip discovered within the just lately tweaked Apple television, looking for to consider what modifications Apple has made in order to decrease the chip to roughly 1/2 the dimensions of the previous A5 chip.
the day before today, experts at Chipworks determined that the brand new A5 used to be nonetheless being manufactured with the aid of Samsung the use of the identical 32-nanometer process used for the previous model, indicating that Apple had undertaken important design modifications for the chip.
Chipworks now has a full image of the A5 die, revealing that this smaller A5 chip comprises most effective a single-core ARM CPU. Apple has listed the Apple tv as having a single-core A5 since the 1/3-generation model launched closing yr, but the previous design concerned a twin-core chip with one core disabled, whereas the new design contains just the one lively core. the brand new A5 does still contain the same dual-core GPU discovered in the earlier model of the chip.
Chipworks’ Dick James tells us, on the other hand, that there have to be more to the story to be able to succeed in an almost 50% dimension reduction, but the agency has but to determine exactly what different adjustments are contributing to the smaller die size.
A separate commentary of interest includes the analog circuitry integrated on the chip. This new A5 chip seems to profit from optimized analog elements reminiscent of resistors, capacitors, and inductors, yielding a combined signal chip that seems to be a rather significant technical success on the 32-nanometer process node.
My bet is that the analog sections have been re-designed, all the time a work in development once we get this small, seeing that analog circuitry does not reduce anywhere close to as predictably as digital. And as Jim mentioned previous, we expect that is now in a mixed-sign version of the 32-nm course of that permits extra passive elements such as resistors, capacitors, and inductors, that’s rather more desirable to analog stuff.
it’s nonetheless uncertain precisely why Apple has elected to redesign the A5 for the Apple tv, because it has been assumed that the corporate’s “pastime” does no longer generate enough shipment quantity to warrant such an investment in and of itself. in consequence, it is imaginable that Apple has plans to make use of this chip in different products, even if the only-core nature of the CPU design will probably restrict the diversity of gadgets for which it might be suitable.
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