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iPod 30Pin的Pin点定义 - 无图版

ttjdn1111 --- 2010-12-15 19:53:59

1

跪求iPod 30Pin的Pin点定义！
取个名字难 --- 2010-12-17 13:15:03

2

PinSignalDescription
1GNDGround (-), internally connected with Pin 2 on iPod motherboard
2GNDAudio & Video ground (-), internally connected with Pin 1 on iPod motherboard
3RightLine Out - R (+) (Audio output, right channel)
4LeftLine Out - L(+) (Audio output, left channel)
5Right InLine In - R (+)
6Left InLine In - L (+)
8Video OutComposite video output (only when slideshow active on iPod Photo)
9S-Video Chrominance outputfor iPod Color, Photo only
10S-Video Luminance outputfor iPod Color, Photo only
11AUDIO_SWIf connected to GND the iPhone sends audio signals through pin 3-4, otherwise it uses onboard speaker. 
12Txipod sending line, Serial TxD
13Rx

ipod receiving line, Serial RxD

14RSVDReserved
15GNDGround (-), internally connected with pin 16 on iPod motherboard
16GNDUSB GND (-), internally connected with pin 15 on iPod motherboard
17RSVDReserved
183.3V3.3V Power (+)
Stepped up to provide +5 VDC to USB on iPod Camera Connector. If iPod is put to sleep while Camera Connector is present, +5 VDC at this pin slowly drains back to 0 VDC.
19,20+12VFirewire Power 12 VDC (+)
21Accessory Indicator/Serial enable

Different resistances indicate accessory type:
1kOhm - iPod docking station, beeps when connected
10kOhm - Takes some iPods into photo import mode
68kOhm - makes iPhone 3g send audio through line-out without any messages
500kOhm - related to serial communication / used to enable serial communications Used in Dension Ice Link Plus car interface
  1MOhm - Belkin auto adaptor, iPod shuts down automatically when power disconnected Connecting pin 21 to ground with a 1MOhm resistor does stop the ipod when power (i.e. Firewire-12V) is cut. Looks to be that when this pin is grounded it closes a switch so that on loss of power the Ipod shuts off. Dock has the same Resistor.

22TPA (-)FireWire Data TPA (-)
235 VDC (+)USB Power 5 VDC (+)
24TPA (+)FireWire Data TPA (+)
25Data (-)USB Data (-)
26TPB (-)FireWire Data TPB (-)
27Data (+)

USB Data (+)
Pins 25 and 27 may be used in different manner. To force the iPod 5G to charge in any case, when USB Power 5 VDC (pin 23) is fed, 25 must be connected to 5V through a 10kOhm resistor, and 27 must be connected to the Ground (for example: pin 1) with a 10kOhm resistor.

iPod 5G can also be forced to charge by attaching the data + and the data - pins to the 5v via a 10k Ohm resistor ( BOTH PINS) and connecting pin 16 to the 5v (ground). (Confirmed working with iPod 5G 20GB). This provides 500mA of current for charging. For quicker charing, up to 1A, see below.

To charge an iPhone 3G / iPod Touch 2nd gen or Ipod Classic (6th Gen), usb data- (25) should be at 2.8v, usb data+(27) should be at 2.0v. This can be done with a few simple resistors: 33k to +5v (23) and 22k to gnd(16) to obtain 2v and 33k to +5v and 47k to gnd to obtain 2.8v. This is a notification to the iphone that it is connected to the external charger and may drain amps from the usb.

To charge iPod Nano pins 25 and 27 should be tied together and then connected to a 10K ohm resistor, and the other side of this resistors then needs to be connected to 5v power.

It's also possible to charge the iPod's or iPhone's battery to make use the of internal +3.3v output (18) terminal to connect the USB Data + (27) thru a 47k ohms resistor and the USB Data- (25) thru a 47k resistor to the USB Power source +5v (23).  This way the USB function is still useable for normal operations and makes it easier the fit in a plug. The resistors are not to critical 2x 150k's still work.

28TPB (+)FireWire Data TPB (+)
29,30GNDFireWire Ground (-)
ttjdn1111 --- 2010-12-17 14:00:10

3

非常感谢！
ttjdn1111 --- 2010-12-17 14:01:44

4

请问有有关iPod的其它技术资料吗？

取个名字难 --- 2010-12-20 13:08:49

5

没有!那么高级的东西 不研究
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