IPOD 30 GB CLASSIC

A brief description

By: Sidddharth Babbar

iPOD Classic

Technical Specifications1

Size and weight Height:4.1 inches (103.5 mm) Width:2.4 inches (61.8 mm) Depth:0.41 inch (10.5 mm) Weight:4.9 ounces (140 grams)1

Source:http://images.apple.com/ipodclassic/images/specs_dimensions20080909.jpg

Display & Audio

Display 2.5-inch (diagonal) color LCD with LED

backlight 320-by-240-pixel resolution at 163

pixels per inch

Audio Frequency response: 20Hz to

20,000Hz Audio formats supported: AAC (16 to

320 Kbps), Protected AAC (from iTunes Store), MP3 (16 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, and 4), Apple Lossless, AIFF, and WAV

User-configurable maximum volume limit

http://images.apple.com/ipodclassic/images/specs_front20080909.jpg

Input/Output & Buttons

Input and output Buttons

Dock connector 3.5-mm stereo headphone jack

Img 1:Source: http://images.apple.com/ipodclassic/images/specs_external20080909.jpgImg 2Source:

ttp://images.apple.com/ipod/images/specs_connector20080909.jpg

Video

H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second

Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats

H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Baseline Profile up to Level 3.0 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats

MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file format

Capacity1

30 GB 7500 songs 25000 photos 210 hours of video

Battery

Built-in rechargeable lithium ion battery Playback time

Music playback time: Up to 36 hours when fully charged

Video playback time: Up to 6 hours when fully charged

Charging via USB to computer system or power adapter (sold separately) Fast-charge time: about 2 hours (charges up to 80%

of battery capacity) Full-charge time: about 4 hours

Img source: http://images.apple.com/ipodclassic/images/specs_battery20080909.jpg

Uploading Media

Primary application - iTunes (available free) to upload music.

Source: Screen shot from my desktop

Basic physical layout

Source: http://www.info.apple.com/images/kbase/61122/61122_2.jpg

Primary Components

Hard Drive Battery Click Wheel Display Microprocessor Video chip Audio Chip

A look Inside

http://static.howstuffworks.com/gif/ipod-2.jpg

Hard Drive

Specifications2

Capacity 30 GBSupported interface DMA/ATA-100 (Ultra)

Spindle Speed 4200 rpmBuffer 2 MBAverage Latency 7.14 msAverage Seek Time 15 ms

http://i11.ebayimg.com/05/i/001/42/53/01c3_2.JPG

BATTERY3

Lithium Ion 3.7 volts 550 mAh (milliamp hours) 

http://www.heybridgesupplies.co.uk/library/Ipod/battery/IPBVIDEO30G.jpg

Click Wheel

Metal Channels in the wheel form a conductor Your finger is the other conductor Charge builds up on the plastic portion Click Wheel controller senses and measures

movements

Img2 source: http://static.howstuffworks.com/gif/ipod-13.jpg

Img1 source: http://static.howstuffworks.com/gif/ipod-11.jpg

LCD (Liquid Crystal Display

2.5-inch (diagonal) color LCD with LED backlight 320-by-240-pixel resolution at 163 pixels per inch 16-bit, TFT LCD. 0.156 dot pitch. 0.125 inches (3.175 mm) thickness

http://www.u2cheer.co.uk/ebay/itempic/parts/ipod/ipod_video_lcd.jpg

Microprocessor4

PortalPlayer PP5021C  dual embedded variable speed 80 MHz

ARM 7TDMI processors  Video decoding - Broadcom VideoCore

BCM2722 processor.

Video Chip5

Broadcom VideoCore BCM2722 processor

 low power with MPEG-4 encode from only 10 mW NTSC/PAL direct video output LCD controller, and 32Mbits of embedded SDRAM

Audio Chip6

Specifications for WM879 Stereo DAC with headphone driver 50mW power into 16R load on 3.3V supply

Audio Performance 100dB SNR (‘A’ weighted @ 48kHz) 88dB THD line level 72dB THD headphone DAC Sampling Frequency: 8kHz – 192kHz Pin Selectable Audio Data Interface Format - I2S, 16-bit Right Justified or DSP 2.7V - 5.5V Supply Operation, Split Analog-digital supplies 4-pin SOIC Package Typical power consumption 20mW on 2.7V supply

Motherboard

http://static.howstuffworks.com/gif/ipod-10.jpg

Motherboard (2)

http://static.howstuffworks.com/gif/ipod-8.jpg

Works Cited

1 http://www.apple.com/ipodclassic/specs.html

2http://www.amazon.com/Toshiba-MK3006GAL-internal-ATA-100-buffer/dp/B000YFI4AO

3http://www.batteryship.com/htmlos/htmlos.cgi/batteryship/catalog.html?item=616-0229&model=iPod+Video+30Gb

4http://www.everymac.com/systems/apple/consumer_electronics/ipod_faq/ipod-processor-type-portal-player-samsung.html

5http://www.broadcom.com/products/Mobile-Multimedia/Mobile-Multimedia-Processors/BCM2722#tab=features-tab

6http://pdf1.alldatasheet.com/datasheet-pdf/view/91275/WOLFSON/WM8759.html

7http://electronics.howstuffworks.com/ipod4.htm