New MacBook Pros are here! Get the lowest prices anywhere: Apple Price Guides updated Sept 16th (exclusive coupons)
 


Wednesday, March 30, 2011, 05:40 am PT (08:40 am ET)

Comparison of Wi-Fi, GSM & CDMA iPad 2s finds antennas similar to iPhone 4

A new collection of teardowns reveals the differences between Apple's different versions of the iPad 2, comparing the components of the Wi-Fi-only, GSM and CDMA models and discovering similarities with the iPhone 4.

This week, a member of the iFixit community contributed a post to the solutions provider's website offering an even closer look at the different models of iPad 2. Previously, the site had torn down the 16GB Wi-Fi model, as well as the Smart Cover accessory.

The comparison shows design decisions similar to the differences between the GSM and CDMA iPhone 4 models. For example, the CDMA version of the iPad 2 has one more antenna than the GSM model, just like the Verizon iPhone 4.

Also like the Verizon iPhone 4, the CDMA iPad 2 features an integrated GPS receiver. On the GSM model, GPS is a separate chip from Broadcom, like with the GSM iPhone 4.

The other major difference between the GSM and CDMA iPad 2 models is the inclusion of a Micro-SIM card slot on the GSM model. Located in the upper left corner of the device, the slot's inclusion gives that model a unique design.

Teardown 1


The Micro-SIM tray is integrated into the headphone jack assembly for the GSM iPad 2. Since the CDMA iPad 2 does not have a space for a SIM card, it uses the exact same headphone jack assembly as the Wi-Fi-only model.

Teardown 4


Chips providing 3G connectivity for the CDMA iPad 2 include a Qualcomm MDM6600 Baseband/RF Transceiver, Qualcomm PM8028 Power Management IC, Toshiba Y890A111222KA, Skyworks 77710 Power Amplifier Module, and Skyworks 77711 Power Amplifier Module. All of these are also found in the Verizon iPhone 4.

Teardown 2


The GSM iPad 2's 3G radio has an Intel 36My1EF with 128MB of Numonyx NOR flash and Elpida Mobile DDR SDRAM, Infineon 337Se833 Baseband Processor, Skyworks & TriQuint Transmit Modules, and Infineon 338S0626 GSM/W-CDMA Transceiver. It also includes a Broadcom BCM4751 Integrated Monolithic GPS Receiver, which is an update from the BCM4750 found in the GSM iPhone 4.

Teardown 3