apple-接口定义

1、Conn ector pinout for: Apple iPod, iPad and iPh one dock30 pin conn ector used on the dock stati on for iPod, iPad and iPh one. 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), iPad and iPhone. It is usedto conne

2、ct the iPod or iPhone to various devices: PC (via USB or FireWire IEEE1394), audio amplifier, serial device (con trolled via the Apple Accessory Protocol).PinSig nalDescripti on1GNDGround (-), i nternaly conn ected with Pin 2 on iPod motherboard2GNDAudio and Video ground (-), internalyconnected with

3、 Pin 2 on iPodmotherboard3RightLine Out - R (+) (Audio output, right cha nn el)4LeftLine Out - L(+) (Audio output, left cha nn el)5Right InLine In - R (+)6Left InLine In - L (+)8Video OutComposite video output (only whe n the slideshow mode is active on iPod Photo)9S-Video Chrominance outputfor iPod

4、 Color, Photo only10S-Video Luminance outputfor iPod Color, Photo only11GNDSerial GND12Txipod sending line, Serial TxD13Rxipod recei ving line, Serial RxD14NC15GNDGround (-), i nternaly conn ected with pin 16 on iPod motherboard16GNDUSBGNC(-), internalyconnected with pin 15 on iPod motherboard17 JNC

5、183.3V3.3V Power (+)Stepped up to provide +5 VDC to USB on iPod Camera Conn ector.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 (+)21AccessoryIn dicator/Serial en ableDiffere nt resista nces in dicate accessor

6、y type:? 1KOhm - iPod dock ing stati on, beeps whe n conn ected? 10KOhm - Takes some iPods into photo import mode? 68kOhm - makes iPh one 3g send audio through lin e-out without any messages? 500KOhm related to serial com muni cati on / used to en able serial com muni cati ons Used in Dension Ice Li

7、 nk Plus car in terface? 1MOhm Belkin auto adaptor, iPod shuts down automatically whe n power disc onn ected Conn ect ing pin 21 to ground with a 1MOhm resistor does stop the ipod whe n 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

8、 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 differentmanner. To force the iPod5G to charge in an

9、y case, when 'USB Power 5 VDC' (pin 23) is fed, 25 must be connected to 5V through a 10KOhmesistor, and 27 must be connected to the Ground (for example: pin 1) with a 10KOhm resistor.28TPB (+)FireWire Data TPB (+)29,30GNDFireWire Grou nd (-)NotesSign als with grey backgro und may not exist o

10、n some dock ing statio ns.Apple serial devices (i.e. iTalk and remote con trol) com muni cate with iPod(3 rd generation or more) using the Apple Accessory Protocol.speed canipod 有The serial connection uses a standard 19200 baud 8N1 protocol (the be increased up to 57600 but tends to become unstable)

11、.本人没试过，不知道可否参考。苹果公司使用了一家名叫 JAE 公司的接插件 ,型号为 DD1. 这个接口有 30 针 ,接口排列方式为 :1.2.3.4.5.6.7.8.929.30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 Lin

12、e In - R (+) R 声道线路输入6 Line In - L (+) L 声道线路输入78 Video Out - Composite Video (for ipod colour when slideshow activated)复合视频输出 ( 只有彩屏的效 )* 91011 Serial GND RS-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 Fir

13、ewire Power 12 VDC (+) 1394火线 12V 电源 正极 *20 Firewire Power 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(+) 学习文档 仅供参考25 USB Data (-) USB 数据(-)26 FireWire Data TPB (-) 1394火

14、线数据 TPA(-)27 USB Data (+) USB数据什)28 FireWire Data TPB 什)1394火线数据 TPB(+)29 FireWire Ground (-) 1394火线 12V 电源 负极 *30 FireWire Ground (-) 1394火线 12V 电源 负极 *特殊定义：* 1,2与电路板连接* 15,16与电路板连接* 19,20与电路板连接* 21通过一个电阻连接到地。不同的阻抗说明不同的辅助部件被连接。的resistances/functions 欧姆是如下：1k0 - iPod 基座10k -照相机适配器500k - RS-232 通信1M0

15、 - Belkin自动适配器，iPod自动地关闭了当力量分开了* 29,30 与电路板连接*全部连接在公共地500 kOhmRS-232 连接:Wire ColorGen eratio n 2Gen erati on 3Sig nalblackTipTipAudio, leftwhiteRing (Next-to-tip)Ri ngAudio, rightredRing 2(3rd ring from end)Ri ng 2Audio groundgree nSleeve (4th ring from end)pin 1Data to iPodblueinner ringpin 4Power

16、to remote, +3.3vyellowoutermost ringpin 3Digital groundpin 2Data from iPod (format unknown)Sleeveno connect / unknown控制芯片使用的是Microchip 12C508A microcontroller单片机.控制码:Butt onG2 Three Byte CodePLAY/PAUSE0xFF 0xFD 0xF1VOL+0xFF 0xFD 0xF2VOL-0xFF 0xFD 0xF3SKIP>>0xFF 0xFD 0xF4<<SKIP0xFF 0xFD 0xF5(