Electrical Specifications; Current Requirements And Power Dissipation; Input Voltage Requirements; Ripple - Western Digital Purple PR1200M Technical Reference Manual

Specifications
2.4

Electrical Specifications

2.4.1
All values are typical (25°C, 5.0V, and 12V input). 3.3V Serial ATA power not utilized in
this product.
Operating Mode
Spinup (max)
Read/Write
Seek
Operating Mode
2
Idle
Standby/Sleep
2.4.2
The input voltage requirements are +5.0V ± 5% and +12.0V ± 10%.
2.4.3
Maximum
Frequency
2.4.4
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 gauge.
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.
6

Current Requirements and Power Dissipation

Mean Current
12 VDC
1.75A
320 mA
340 mA
POWER MANAGEMENT COMMANDS
Mean Current
12 VDC
320 mA
7 mA

Input Voltage Requirements

Ripple

+12 VDC
200 mV (double amplitude)
0-30 MHz

Power Connectors and Cables

RELEASED 5/4/17 (WD CONFIDENTIAL)
1
Power, Average
5 VDC
— 24.8W
300 mA 5.3W
280 mA 5.5W
1
Power, Average
5 VDC
210 mA 4.9W
70 mA 0.4W
+5 VDC
100 mV (double amplitude)
0-30 MHz
WD Purple™ PR1200M
1
1
2679-800065-A03