HP 6642D (US) Conducted noise, Voltage tolerance, Power-management modes, Power Modes, Heads

Page 17

10

U8 Family Product Manual, Rev. B

1.7.2 Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

•Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to 10 MHz.

•Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave injected noise at up to 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal volt- age by the typical RMS read/write current.

1.7.3 Voltage tolerance

Voltage tolerance (including noise): 5V ± 5% and 12V ± 10%

1.7.4 Power-management modes

The drive provides programmable power management to provide great- er energy efficiency. In most systems, you can control power manage- ment through the system setup program. The drive features the following power-management modes:

Power Modes

Heads

Spindle

Buffer

 

 

 

 

 

 

 

 

Active

Tracking

Rotating

Enabled

 

 

 

 

Idle

Tracking

Rotating

Enabled

 

 

 

 

Standby

Parked

Stopped

Enabled

 

 

 

 

Sleep

Parked

Stopped

Disabled

 

 

 

 

•Active mode

The drive is in Active mode during the read/write and seek operations.

•Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc access is necessary.

•Standby mode

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a specifiable length of time. The standby timer delay is

Page 16 Page 18
Image 17
Page 16 Page 18
Contents ST317221A, ST313021A U8 FamilyST38410A, ST34313A Ultra ATA Interface DrivesST317221A, ST313021A U8 FamilyST38410A, ST34313A Ultra ATA Interface DrivesPage U8 Family Product Manual, Rev. B ContentsATA interface Configuring and mounting the driveFigures U8 Family Product Manual, Rev. B Introduction Drive Specification Specification summary tableST317221A ST313021A0 to 60C op., -40 to 70C nonop ST317221AST317221A 1.1.1 Default logical geometry 1.0 Drive specifications1.1 Formatted capacity 1.2 Physical organizationDrive Specification 1.4 Physical characteristics1.3 Recording and interface technology 1.5 Seek time1.7.1 Power consumption 1.7 Power specificationsSpinup power 1.6 Start/stop timesOperating power and current Read/Write power and currentIdle mode power Seek Mode1.7.1.1 Typical current profile Power ModeTypical Watts Typical Amps RMSPower Modes 1.7.4 Power-management modes1.7.2 Conducted noise 1.7.3 Voltage tolerance1.8 Environmental tolerances 1.8.1 Ambient temperature Idle and Standby timers1.8.2 Temperature gradient Sleep mode1.8.3 Humidity 1.9 Drive acoustics 1.8.6.1 Operating vibration1.8.6.2 Nonoperating vibration 1.10 Electromagnetic susceptibility 1.12 Agency certification 1.12.1 Safety certification1.11 Reliability 1.12.2 Electromagnetic compatibilityAustralian CE-Tick N176 1.12.3 FCC verificationU8 Family Product Manual, Rev. B 2.1 Handling and static-discharge precautions 2.0 Configuring and mounting the drive7 5 3 8 6 4 2.2 Jumper settings 2.2.1 Master/slave configurationOptions jumper block J8 Master or single drive Drive is slave Cable select2.3 Drive mounting 2.2.2 Cable-select option2.2.3 Ultra ATA/66 cable Note Dimensions are shown in inches mm Figure 3. Mounting dimensions-top, side and end view3.1 ATA interface signals and connector pins 3.0 ATA interfaceSignal name Figure 4. I/O pins and supported ATA signalsHost pin # and signal description Drive pin #Command name 3.1.1 Supported ATA commandsCommand code in hex ATA-standard commandsCommand code in hex 3.1.2 Identify Drive commandDescription Wordx.xx Valuexx07H xxxxHxx1FH Bit Word xxA5HDescription if bit is set to Bit Word Set transfer mode based on value in Sector Count register 3.1.3 Set Features commandCode in Features 3.1.4 S.M.A.R.T. commandsS.M.A.R.T. Command RegisterCode in Features Page Page Publication Number SG35226-001, Rev. B, Printed in USA Seagate Technology, Inc920 Disc Drive, Scotts Valley, California 95066, USA
Related manuals
Manual 2 pages 24.33 Kb

6573Z (US) specifications

The HP 8566C, 6573Z, 6647, 6671, and 6641 are examples of cutting-edge test equipment from Hewlett-Packard, now known as Agilent Technologies. Each of these models serves essential functions within the realm of RF and microwave signal analysis, tailored to meet the demands of engineers and technicians in various industries, including telecommunications, aerospace, and electronics.

The HP 8566C is a signal analyzer that provides comprehensive analysis, particularly useful for multi-channel and high-frequency signals. A notable feature of this model is its frequency range, which spans from 0.1 Hz to 26.5 GHz, making it suitable for a wide variety of applications. The instrument's advanced capabilities such as phase noise measurement, frequency response analysis, and spectrogram displays cater to precise and complex signal characterizations. The built-in tracking generator further enhances its utility, enabling users to test filters, amplifiers, and antenna systems efficiently.

On the other hand, the HP 6573Z is a precision DC power supply that is critical for testing and characterizing devices under various power conditions. It delivers high accuracy and stable output across a wide range of voltage and current options. This model integrates features like programmable voltage and current limits, allowing for customized test scenarios, essential for designers needing reliable power sources during the prototyping phase.

The HP 6647 and 6671 models are versatile electronic loads, primarily designed for battery testing and power supply validation. They support various testing modes, including constant current, constant voltage, and constant resistance modes, which provide flexibility for power electronics engineers. Their robust measurement capabilities allow for detailed analysis of response characteristics, load transients, and efficiency metrics.

Lastly, the HP 6641 complements this lineup by offering high-performance test equipment with similar applications in power electronics. It features intuitive interfaces and advanced programming capabilities, enabling streamlined automation of test procedures.

In conclusion, the HP 8566C, 6573Z, 6647, 6671, and 6641 collectively embody sophisticated testing capabilities in signal analysis and power electronics. Their features, ranging from high-frequency performance to accuracy in power delivery, make them indispensable in the modern technological landscape. These instruments support continuous innovation while ensuring the reliability of devices that are critical to both consumer and industrial sectors.
Top Page Image Contents