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Apple MD771LL/A manual Analog Audio Specifications, Analog audio line in typical values

Models: MD771LL/A

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Analog Audio Specifications

åSample rate: 44.1 kHz, 48 kHz, or 96 kHz

åJack type: 1/8Ó mini

åBits per sample: 16-bit or 24-bit

åFrequency response: 20 Hz to 20 kHz, +0.5 dB/-3 dB

Analog audio out using the headphone jack (typical values)

Based on a typical situation with playback of 1 kHz, -3dBFS 24-bit sine wave, 44.1 kHz output sample rate into 150 ohms unless otherwise specified below.

åOutput voltage: 1.4 volts (root mean square) (Vrms) (+5.1 dBµ)

åOutput impedance: 24 ohms

åOutput power: 90 milliwatts (mW)

åSignal-to-noise ratio: Greater than 90 dB

åTotal harmonic distortion + noise: Less than -75 dB (.01 percent)

åChannel separation: Greater than 50 dB

Analog audio line in (typical values)

Based on a typical situation with playback of 1 kHz, -3dBFS 24-bit sine wave, 44.1 kHz output sample rate unless otherwise specified below.

åMaximum input voltage: 2 Vrms (+8.2 dBµ)

åInput impedance: Greater than 20 kilohms

åSignal-to-noise ratio: Greater than 90 dB

åTotal harmonic distortion + noise: Less than -85 dB (.006 percent)

åChannel separation: Greater than 80 dB

74 Appendix A Specifications

Image 74

Apple MD771LL/A manual Analog Audio Specifications, Analog audio out using the headphone jack typical values

Contents

User’s Guide Page Contents Regulatory Compliance Information Index Setting Up Your Mac Pro Getting Started Position your computer and display Plug in the power cord Connect the display Port Connect an Ethernet cable Connect the keyboard and mouse Plug the mouse into a USB port on the keyboard KeyboardMouse Use Setup Assistant Need Help Setting Up?Using a Wireless Keyboard and Mouse Turn on your Mac Pro Putting Your Mac Pro to Sleep or Shutting It Down Putting Your Mac Pro to Sleep Shutting Down Your Mac Pro To wake your computer from sleep, do one of the following Getting to Know Your Mac Pro Getting the Latest Information Basic Features on the Front of Your Mac Pro FireWire 400 and 800 ports Ports and Connectors on the Back of Your Mac Pro Power socket More Ports and Connectors on the Back PCI Express expansion slots Internal Expansion Options Optical drives To open Mac Help Getting AnswersMore Information Open System Preferences by choosing Apple S ystem Page Working Inside Your Computer Opening the Computer Unplug all the cables and the power cord from the computer Lift the latch while holding the side panel Remove the side panel Installing Memory To install memory Top memory card Working Inside Your Computer Place the side panel in the slot and then push to close Push the latch down to secure the side panel Installing Internal Storage Devices Installing Sata 3 Gbit/s Hard Disk Drives To install a hard disk drive Position the connectors towards the rear Replace the side panel and push the latch down to secure it Replacing the Optical Drive To replace the optical drive Working Inside Your Computer Four extra screws Power cable middle connector Ribbon cable end connector Replace the side panel and push the latch down to secure it About PCI Express Cards To install a PCI Express cardAdding PCI Express Cards Port access cover Did You Know?-Installing a Full-Length PCI Card Port access opening PCI Express slot Replacing the Internal Backup Battery To replace the battery Working Inside Your Computer Page Problems with Your Mac Pro Computer won’t respond or the pointer won’t move Computer won’t turn on or start up Status light flashes and the computer won’t start up You are unable to eject a discIf that doesn’t work To force an application to quit Problems with SoftwareYou have a problem with a software program Keeping Your Software Up to Date Problems with AirPort Wireless CommunicationTo check for updated software Problems with Your Display No image appears on the screen After you change the screen resolution, desktop icons move Screen image appears dim or flickers Screen freezes Problems with Your Internet ConnectionTo use Network Diagnostics Light on the front of the display is flashing Cable Modem, DSL, and LAN Internet Connections Turn the modem off and on to reset the modem hardwareCheck System Preferences settings PPPoE Connections Network Connections Using Apple Hardware Test To use Apple Hardware Test Installing Applications Reinstalling the Software That Came with Your ComputerInstalling Mac OS To install Mac OS Maximizing Ethernet Performance System Profiler Learning More, Service, and SupportOnline Resources Onscreen Help Apple Hardware Test AppleCare Service and Support Information Country Phone Website Locating Your Serial Number Processor Processor and Memory SpecificationsRandom-access memory RAM Appendix Video Display Modes SuperDrive DVD+R DL/DVD±RW/CD-RW SpecificationsGraphics Card Data formats USB Specifications FireWire Specifications Power Ethernet SpecificationsBluetooth 2.0+EDR Specifications Optional Compatibility AirPort Extreme Specifications OptionalOptical Digital Audio Specifications Optical digital audio out Analog audio line in typical values Analog Audio SpecificationsAnalog audio out using the headphone jack typical values Power Supply Power Requirements for Expansion Cards and Peripherals Battery System Clock and BatteryDimensions and Operating Environment Dimensions Safety, Maintenance, and Ergonomics General Maintenance Apple and the Environment To keep your optical drive working properly Protecting Your Optical DriveMaintaining Your Display To maintain your display and ensure its long life Important Ergonomic and Health-Related Information Forearms and hands in a straight line Avoid Hearing Damage Compliance Statement Wireless Radio Use Korea Mouse Statement Apple and the Environment Disposal and Recycling Information Taiwan European Union-Disposal Information Page Index Index