Western Digital Purple PR1000M, Technical Reference Manual

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S
PECIFICATIONS PR1000M
6 RELEASED 5/8/17 (WD CONFIDENTIAL) 2679-800020-A03
2.4 Electrical Specifications
2.4.1 Current Requirements and Power Dissipation
All values are typical (25°C, 5.0V, and 12V input). 3.3V Serial ATA power not utilized in
this product.
2.4.2 Input Voltage Requirements
The input voltage requirements are +5.0V ± 5% and +12.0V ± 10%.
2.4.3 Ripple
2.4.4 Power Connectors and Cables
SATA Connectors
For information on SATA data connectors, refer to the Serial ATA 1.0 specification
available for download at
www.serialata.org .
At the time of this printing, there are no published standards for SATA power/mating
connectors or power/data cable wire gauges.
Cabling Requirements for SATA
The SATA cable consists of four conductors in two differential pairs. The cable may
also include drain wires to be terminated to the ground pins in the SATA cable
receptacle connectors. See the SATA 1.0 specification for cable specifications. The
cable's maximum length is one meter.
Operating Mode Mean Current Power, Average
12 VDC 5 VDC
Spinup (max) 1.725A – 23.6W
Read/Write 250 mA 280 mA 4.4W
Seek 400 mA 270 mA 6.2W
POWER MANAGEMENT COMMANDS
Operating Mode Mean Current Power, Average
12 VDC 5 VDC
Idle
230 mA 260 mA 4.1W
Standby 7 mA 105 mA 0.6W
Sleep 7 mA 105 mA 0.6W
+12 VDC +5 VDC
Maximum
Frequency
200 mV (double amplitude)
0-30 MHz
100 mV (double amplitude)
0-30 MHz