iPhone数据线接口定义

1、iPhone数据线接口定义 接口排列方式为:1.2.3.4.5.6.7.8.9.29.30内部焊接点排列为:1 3 5 7 9 11 13 15 17 19 21 23 25 27 292 4 6 8 10 12 14 16 18 20 22 24 26 28 30接口定义为:1 Ground (-) 地 *2 Line Out - Common Ground (-) 线路输出 地*3 Line Out - R (+) R声道线路输出4 Line Out - L (+)L声道线路输出5 Line In - R (+) R声道线路输入6 Line In - L (+) L声道线路输入78 Vid

2、eo Out - Composite Video (for ipod colour when slideshow activated) 复合视频输出 (只有彩屏的ipod有效)*91011 Serial GNDRS-232串口 地12 Serial TxD RS-232串口 TxD13 Serial RxD RS-232串口 RxD1415 Ground (-) 地 *16 USB GND (-) USB电源负极 *1718 3.3V Power (+) 3.3V电源正极19 Firewire Power 12 VDC (+) 1394火线12V电源 正极 *20 Firewire Power

3、 12 VDC (+)1394火线12V电源 正极*21 Accessory Indicator 附件识别接口 *22 FireWire Data TPA (-) 1394火线数据 TPA(-)23 USB Power 5 VDC (+)USB 5V 电源 正极24 FireWire Data TPA (+) 1394火线数据 TPA(+)25 USB Data (-)USB 数据(-)26 FireWire Data TPB (-)1394火线数据 TPA(-)27 USB Data (+) USB 数据(+)28 FireWire Data TPB (+) 1394火线数据 TPB(+)2

4、9 FireWire Ground (-) 1394火线12V电源 负极*30 FireWire Ground (-) 1394火线12V电源 负极*iphone接口定义英文版的：30 pin connector used on the dock station for iPod and iPhone.Available in all Apple iPod MP3 player (iPod 1G, 2G, 3G, 4G, 5G and Nano).This connector is used on iPod (starting from 3rd generation) and iPhone.

5、It is used to connect the iPod or iPhone to various devices: PC (via USB or FireWire IEEE1394), audio amplifier, serial device (controlled via the Apple Accessory Protocol).Pin Signal Description 1 GND Ground (-), internaly connected with Pin 2 on iPod motherboard 2 GND Audio and Video ground (-), i

6、nternaly connected with Pin 2 on iPod motherboard 3 Right Line Out - R (+) (Audio output, right channel) 4 Left Line Out - L(+) (Audio output, left channel) 5 Right In Line In - R (+) 6 Left In Line In - L (+) 8 Video Out Composite video output (only when the slideshow mode is active on iPod Photo)

7、9 S-Video Chrominance output for iPod Color, Photo only 10 S-Video Luminance output for iPod Color, Photo only 11 GND Serial GND 12 Tx ipod sending line, Serial TxD 13 Rx ipod receiving line, Serial RxD 14 NC 15 GND Ground (-), internaly connected with pin 16 on iPod motherboard 16 GND USB GND (-),

8、internaly connected with pin 15 on iPod motherboard 17 NC 18 3.3V 3.3V 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 +12V Firewire Power 12 VDC (+) 21 Accessory In

9、dicator/Serial enable Different resistances indicate accessory type:1KOhm - iPod docking station, beeps when connected10KOhm - Takes some iPods into photo import mode500KOhm - related to serial communication / used to enable serial communications Used in Dension Ice Link Plus car interface1MOhm - Be

10、lkin 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

11、 same Resistor.22 TPA (-) FireWire Data TPA (-) 23 5 VDC (+) USB Power 5 VDC (+) 24 TPA (+) FireWire Data TPA (+) 25 Data (-) USB Data (-) 26 TPB (-) FireWire Data TPB (-) 27 Data (+) USB Data (+)Pins 25 and 27 may be used in different manner. To force the iPod 5G to charge in any case, when "U

12、SB 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. 28 TPB (+) FireWire Data TPB (+) 29,30 GND FireWire Ground (-) NotesSignals with grey background may not exist on some docking stations.Apple serial devices (i.e. iTalk and remote control) communicate with iPod (3rd generat