HP ProBook 645 G1 - Page 37

Hardware Implementation IDT 92HD91
Function Key
Volume Controls
Volume up, volume down, and mute
Full Duplex Yes
Microphone In Stereo
Headphone/Line Out Stereo
Integrated Microphone Yes, dual digital microphone array when equipped with optional webcam
Audio Output Quality Frequency Response 20 Hz - 20 kHz
Signal to Noise Ratio >85 dB
Total Harmonic Distortion 0.01%
Noise Floor -110 dB
Play/Record Sampling
Rate (s)
8 kHz - 48kHz
DAC 16, 20 or 24-bit
ADC 16 or 20-bit
Integrated Stereo
Speakers
Power Rating 2 Watts
Impedance 4 Ohms
POWER
HP 65W Smart AC Adapter Dimensions 4.17 x 1.85 x 1.1 in (10.6 x 4.7 x 2.8 cm)
Weight 0.62 lb (280 g)
Input 100 to 240 VAC
Input Efficiency 87% min at 115 VAC
Input frequency range 47 to 63 Hz
Input AC current 1.7 A at 90 VAC, 0.85 A at 180 VAC
Output Output power 65W
DC output 18.5V
Hold-up time 5 msec at 115 VAC input
Output current limit <11A, Over voltage protection- 29V max
automatic shutdown
Connector 3 pin/grounded, mates with interchangeable cords
Environmental Design Operating
temperature
32° to 104° F (0° to 40° C)
Non-operating (storage)
temperature
-4° to 149° F (-20° to 65° C)
QuickSpecs
HP ProBook 645 G1 Notebook PC
HP ProBook 655 G1 Notebook PC
Technical Specifications
DA - 14689 North America — Version 8 — February 21, 2014 Page 37