Huawei Ideos S7

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Revision as of 01:42, 4 October 2011 by Wad (talk | contribs) (→‎Ports)
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The Huawei Ideos S7 is a commercially available tablet in the USA. Note that the S7 Slim is a different design.

Overview

The Huawei Ideos S7 provides 256MB of memory and 8GB of eMMC storage

Display

The display size is 7" diagonal w. 16:9 aspect ratio. The resolution is 800 x 480. A single point resistive touchscreen is integrated.

There are two internal speakers, independently wired, and an internal mono microphone.

Connectivity

The Ideos S7 has 3G, 802.11b/g WiFi and Bluetooth, using three individual antennas.

Location/Movement

The Ideos S7 has an accelerometer.

Ports

  • One micro USB OTG (power output only)
  • One multipin connector, use undefined (docking ?)
  • One microSD card, externally accessible
  • One DC input port
  • One stereo Headphone Jack (3.5mm)

Power

The Ideos S7 has a 8.2Wh Li-Ion polymer battery (3.7V @ 2200mAh).

Breakdown

The tablet has a steel back plate which removes to allow access to the battery, SIM card, and manufacturing diagnostic ports. There is a larger plastic back cover which removes to allow access to the motherboard. Removing the back cover requires removal of six T-6 screws under the steel plate (hidden under plugs as well) and four T-6 screws in the front (hidden behind the flexible black plastic glued to each side of the display).


Electrically, the tablet consists of a motherboard, two auxiliary flexible PCBs (front facing camera, light sensor, and input buttons), the display and the touchscreen.

The motherboard mainly consists of a 45mm x 60mm processor module, which contains the SoC, DRAM, 3G, and Bluetooth circuitry. This is manufactured using a high density interconnect PCB w. tightly controlled impedance. The main motherboard provides additional peripherals and system connections.

Height

The tablet thickness is roughly 15.8mm in the middle. The height stackup is:

Height Stackup
Touchscreen: 0.5mm
Cover Glass: 1.1mm
Air Gap: 1.7mm
Display: 5.9mm
Steel frame: 0.8mm Battery: 5.9mm
Motherboard: 4.5mm Camera: 4.5mm
Back plastic: 1mm
Steel Back Plate: 0.8mm

Weight

The tablet weight is roughly 510 grams. This breaks down as:

Weight
Cover Glass/Touchscreen/Bezel: 130g
Display: 152g
Motherboard: 64g
Battery: 52g
Back cover: 106g
Total: 504g

BOM