Among the chip suppliers in the Nexus 7 are familiar companies like Maxim, providing the main power management IC (MAX77612A), and Texas Instruments with two design wins also related to the power management. Hynix also won a socket for memory with its 2 Gb DDR3 SDRAM modules on the main board. We also found a 8-Gb memory module from Kingston manufactured by SanDisk/Toshiba and a PN65 NFC secure module from NXP. The latter device was recently found in the Samsung Galaxy S3.
Broadcom was another notable design winner with it BCM4330 802.11n with Bluetooth wireless transceiver and BCM4751 integrated GPS receiver. The BCM4330 is paired with an AzureWave AW-NH665 802.11n Wi-Fi/Bluetooth/FM radio module.
Among the chip makers not usually seen in tablets is ELAN Microelectronics, which provided controllers for the Nexus 7’s touchscreen. We have previously seen ELAN microcontrollers in handsets manufactured for the Chinese market, so the Nexus 7 represents a major design win for the Taiwanese vendor.
The combination of a high-end processor, a multitude of applications optimized for Android 4.1 Jelly Bean and a $199 price tag for the 8 Gb model give Google a chance to make a dent in the tablet market. Early indications are that the pre-orders for the Nexus 7 are substantial. If Google succeeds with Nexus 7, the pressure will grow on Apple to introduce its own 7-inch model, the protests of the late Steve Jobs notwithstanding.
Nvidia Tegra 3: Quad-core mobile applications processor
Hynix H5TC2G83CFR: 2 Gb DDR3 SDRAM
Kingston KE44B026BN: 8GB memory module
Realtek (RMC) ALC5642: Audio codec and headphone amplifier
InvenSense MPU-6050: Six-axis (gyro and accelerometer) MEMS device
AzureWave AW-NH665: 802.11n Wi-Fi/Bluetooth/FM radio module
NXP Semiconductor PN65: Secure NFC module
Back side view of the Nexus 7 communications board (click on image to enlarge).
Allan Yogasingam is a technical research manager at UBM TechInsights, a sister company to EE Times. For a closer look at the UBM TechInsights teardown analysis of the Nexus 7, please visit the firm's website.
So what kind of touchscreen does out have? Saw mention of the Elan components for a resistive touchscreen. Is this really a resistive screen with the life limitations and only single touch? Capacitive touch is certainly the expected norm in phones and tablets.
I suspect that somebody got some bad info about the Elan parts. The entire internet would be in an uproar if Google released this new "Kindle Fire killer" but crippled it with a resistive touchscreen.
The Nexus 7 indeed has a capacitive touchscreen. A big hint is the fact that the LCD is covered with glass.
Those two Elan parts don't show up on Elan's website and the only Google search hits for those part numbers refer to articles about the Nexus 7 teardown.
But a quick glance at Elan's website reveals that they do make capacitive touchscreen controllers -- and they don't appear to offer any resistive touchscreen controllers.
It still amazes me that today what is more powerful than the 386 motherboards I looked at when I first got into this business is routinely fitted onto a couple small dogleg boards that wrap around a display.
Rick, you may cease your amazement now... not sure about the quality of Google's tablet but my Lenovo Ideapad K1 died just a month after its 1-year warranty expired! It is true the tablets these days cram a lot of computing power but their reliability leaves a lot to be desired.
In comparison, my HP 17inch laptop that is nearly 10 year old still works like a champ!
Allan : Could you pl. confirm the type of DRAM on board the Nexus 7. Is it really DDR3 per your comment above or are they still using LP DDR 2 like other Tablets ? Perhaps you can provide the Part No. as well, Thx.
putting a LPDDR2 PoP version on there rather than the better DDR3 would have slowed down the data throughput would it not, so im glad they went DDR3 its still a single channel right ? and so not perfect for gaining extra free speed, at least until the real Wide IO ram makes an appearance.
a belated thx. from your photos it appears that the 4 Hynix DDR 3L chips are on both the front and back of the motherboard - 2 a side. Unlike PoP config they are not on the SoC but offset from them as in the iPad3. Like the A5x the Tegra 3 too seems to require a Heat Sink - the consequences of cramming too many Graphics cores with a 45 nm, non HKMG process perhaps ?
The price of looks very attractive for a tab with a quad core processor, 1GB DDR3 and other features. This is going to be a big hit!
Did I miss the BOM cost? Is there an estimate of BOM cost available? I think the margin should be very low like the same for Amazon's Kindle Fire...and it is mostly targeted to eat Apple's share by selling more of Google's Apps.
is that $184 BOM estimate based on a 1000 pcs or more BTW ?
its still very good for a £159 for 8GB and £199 for the 16GB version in the UK price, released in retail just as the 2012 Olympics start there.
not to forget there's all that new free Virgin media cable/ wireless underground connectivity now put in place ready for the massive games visitors there too so no problem getting any web content and streaming etc you please with it.
even if the UK goggle shop content isn't great right now as the content providers don't seem to want to take your 2012 Olympics games money and actually pay for their online content there.
oh well the end users will be happy anyway a quad core and you can provide your own content, cant stop the net.
oh BTW allan how did you arrive at the $184 price that 1000pvs again perhaps ?, when http://allthingsd.com/20120711/googles-nexus-7-costs-152-to-make-ihs-isuppli-teardown-finds/
find such a diference in BOM in isuppli's "$152 to Make" price.
there's a very large price difference there
OC lower is better if your not compromising the components cost and so getting lower data throughput.
Good question for this article.
Battery management is big challenge for smartphone or tablet.
My Samsung Galaxy-R can only last for about 5-6 hours if I listening musics,watching moives and using google maps for navigation.
It is a very good piece of hardware, since Google is not revenue centric from hardware, it would be better if they had kept this an open source hardware so that it can be better replicated thought the world.
IT'S ABOUT TIME WE SEE A REPLACEABLE BATTERY!
UNLIKE THE IPAD YOUR STUCK WITH A ONE TIME USE INTEGRATED BATTERY PACK. ONCE THE BATTERY DECADES AND DOESN'T HOLD A CHARGE ANYMORE YOU WOULD EITHER HAVE THROUGH THE IPAD A WAY OR SHIP IT TO APPLE FOR A VERY EXPENSIVE REPAIR. WHY WASTE MONEY ON AN OVERPRICED IPAD THAT ONLY HAS A ONE TIME USE BATTERY, THAT IS LAME!
Small tablets (7") will all very soon have LTE phone connectivity -- hence integrated (BB+AP) processors.
It would be great if OEM would negotiate affordable data plan so that a user after opening the mailing box can just activate (if he/she wants) phone connectivity. I hope the next iPad Mini, Nexus 7, Kindle Fire will all do that.
I just dropped you email lists which guide me to these ariticle due to the horrible practice of breaking articles up into 29 pages. That is ridiculous. Causing you audience issues just to drive up page counts is a great way to lose readers. It also appears that you have made the print page 29 pages. Way to go, make your readers more unhappy just to make your site seem more popular than it is.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments