N900 Hardware Schematic

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* N4070 - Headphone amplifier
* N4070 - Headphone amplifier
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A crossreference.
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* N6543 - 2.8V regulator with enable, provides power to:
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* G6450 - 38.4MHz VCTCXO - clock for BT and WLAN modules automatically enabled when either require clock, through or gate to above regulator.
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* N6300 - WLAN module
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* N6000 - BT module / FM receiver - [[N900 Hardware FM Receiver]]
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* Gaia - the twl4030 main power supply and audio codec chip. See [[N900_Hardware_Power_management]].
 
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* Rapuyama - The main phone chipset.
 
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* Battery monitor chip BQ27200. See [[N900 Hardware Charge Meter]].
 
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* Battery charger/boost chip BQ24150. See [[N900 Hardware Battery Charger]]
 
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* USB PHY - NXP1707A. See [[N900 Hardware USB PHY]]
 
[[Category:N900 Hardware]]
[[Category:N900 Hardware]]

Revision as of 22:40, 16 June 2010

An N900 schematic appears to be at [1]

This might not be the exact version of the schematic used to make the phone.

Revision is given as 2JH_21A on the schematic. However, the pictured PCB in the schematic is 2JH_20 - see above the third row from the right keys. A dissasembled purchased n900 showed a revision number of 2JH_21[2].

This is a brief list of what's where on the schematic. It generally only includes major components, and any minor components that have a direct bearing on software.

Contents

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Page 3

  • N5210 - uSD hotswap detector
  • D4800 - OMAP3430 - N900 Hardware CPU
  • D5000 - Combo memory - 64M*32 DDR, 128M*16 Flash. (POP?)
  • D5200 - eMMC 32Gb.

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Page 5

Page 6

  • N1322 - R&D mode LED driver.
  • N1301 - LED driver - keyboard, notification - N900 Hardware LED

Page 7

  • S4311/2 - Volume keys
  • S4313 - Lock switch
  • S4301 - Power button
  • S4314 - Capture key (two level)
  • Qwerty keyboard

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Page 9

  • N6543 - 2.8V regulator with enable, provides power to:
  • G6450 - 38.4MHz VCTCXO - clock for BT and WLAN modules automatically enabled when either require clock, through or gate to above regulator.
  • N6300 - WLAN module
  • N6000 - BT module / FM receiver - N900 Hardware FM Receiver

Page 10