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The iPhone 5 inside out

Posted: 27 Sep 2012 ?? ?Print Version ?Bookmark and Share

Keywords:iPhone 5? LTE? 4G? A6 processor?

The iPhone 5 also heralds Apple's move into the 4G wireless landscape. Apple's latest handset is the first to incorporate LTE base band, matching the base band capability of the 3rd generation iPad. Within this handset, lies three design wins for Qualcommall relative to their LTE technology. The "crown jewel" of these ICs is the MDM9615. This device, manufactured at the 28nm process node, is a mobile data modem that supports LTE (FDD and TDD), DC-HSPA+, EV-DO Rev-B and TD-SCDMA, making it a truly global base band IC C capable of functioning on any carrier. With the MDM9615 are the natural pairs of the PM8018 power management IC and the RTR8600 quad-band transceiver with GPS. All three are part of Qualcomm's LTE ecosystem and were selected because of their operability with each other.

Same suppliers

Like all other iPhone designs, the iPhone 5 has STMicroelectronics paired accelerometersthe L3G4200DH 3-axis digital MEMS gyroscope and the LIS331DLH 3-Axis MEMS accelerometer. Apple feels very comfortable with both of these devices.

Speaking of familiar manufacturers, Dialog retains its power management IC socket with a new device, the Agatha II, or the D2013. Cirrus Logic also retains its audio codec in the iPhone 5.

Dialog D2013 Power Management IC

Cirrus Logic Audio Codec

For memory, the 32-GB of NAND flash found in the iPhone 5 torn down by UBM TechInsights was provided by SanDisk. The processor memory is found on a package-on-package (PoP) with the A6 applications processor. The PoP we found in our handset utilised Elpida's B8164B3PM 1-GB pow-power DDR2 (LPDDR2) SDRAM.

Lastly, Broadcom maintains its key design wins in the iPhone 5, with the major win being Broadcom's BCM4334 single-chip dual-band 802.11n, Bluetooth 4.0+HS & FM receiver combo chip providing the wireless connectivity to the handset. This same die was found within the Samsung Galaxy S3, suggesting that this combo chip is the current king of Wi-Fi.

Inside the Murata module containing the Broadcom BCM4334


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