HP EliteBook 820 G1 - Page 49

AUDIO/MULTIMEDIA - DTS SOUND+
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 45W Smart AC Adapter Dimensions 3.78 x 1.95 x 0.88 in (9.6 x 4.95 x 2.24 cm)
Input 90 to 265 VAC
Input Efficiency 87% min at 115 VAC
Input frequency range 47 to 63 Hz
Input AC current 1.4 A at 90 VAC and maximum load
Output Output power 45W
DC output 19.5V
Hold-up time 5 msec at 115 VAC input
Output current limit <8A, Over voltage protection- 29V max automatic
shutdown
Connector 3 pin/grounded, mates with interchangeable cords
Environmental Design Operating
temperature
32° to 95° F (0° to 35° C)
QuickSpecs
HP EliteBook 820 G1 Notebook PC
HP EliteBook 840 G1 Notebook PC
HP EliteBook 850 G1 Notebook PC
Technical Specifications
DA - 14687 Worldwide — Version 11 — March 4, 2014 Page 49