N900 Hardware Schematic
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* Qwerty keyboard | * Qwerty keyboard | ||
=Page 8= | =Page 8= | ||
| + | * N4022 - Analog switch, used to switch between TV out and headphones. | ||
| + | * N4051 - Speaker amplifier | ||
| + | * N4040 - Stereo audio codec [[N900 Hardware Audio Codec]] | ||
| + | * N6180 - FM transmitter [[N900 Hardware FM Transmitter]] | ||
| + | * N4070 - Headphone amplifier | ||
| + | =Page 9= | ||
A crossreference. | A crossreference. | ||
Revision as of 22:35, 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 |
Page 2
- D4800 - OMAP3430 - N900 Hardware CPU
- N5820 - Camera cover switch
- N5801/2 - Main/secondary camera switches (Digital, switch CSI_A_B(3:0) bus)
- N7001 - LIS302DL - N900 Hardware Accelerometer
- N5810 - - N900 Hardware Flash
Page 3
- N5210 - uSD hotswap detector
- D4800 - OMAP3430 - N900 Hardware CPU
- D5000 - Combo memory - 64M*32 DDR, 128M*16 Flash. (POP?)
- D5200 - eMMC 32Gb.
Page 4
- Gaia - TWL4030 - N900 Hardware Chipset
- N4290 - 2.5V regulator with enable.
- G4246 - 19.2MHz TXCO
- N4242 - 2.8V regulator with enable.
- M4270 - Vibrator motor
- D4280 - USB PHY - N900 Hardware USB
- N1130 - Fuel Guage - N900 Hardware Charge Meter
- N1140 - Battery Charger - N900 Hardware Battery Charger
- R1129+R1130 - Sense resistor for Fuel Guage.
- R1110 - 10K thermistor in parallel with 1n to ground, to ADCIN0 on GAIA - Battery temp?
Page 5
- N1510 - Touchscreen controller N900 Hardware Touchscreen
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
Page 8
- N4022 - Analog switch, used to switch between TV out and headphones.
- N4051 - Speaker amplifier
- N4040 - Stereo audio codec N900 Hardware Audio Codec
- N6180 - FM transmitter N900 Hardware FM Transmitter
- N4070 - Headphone amplifier
Page 9
A crossreference.
- Gaia - the twl4030 main power supply and audio codec chip. See N900_Hardware_Power_management.
- Rapuyama - The main phone chipset.
- Battery monitor chip BQ27200. See N900 Hardware Charge Meter.
- Battery charger/boost chip BQ24150. See N900 Hardware Battery Charger
- USB PHY - NXP1707A. See N900 Hardware USB PHY