HP 2540P Audio Hardware Implementation, Controls Full Duplex, Combo Microphone, Headphone, Rate s

QuickSpecs

HP EliteBook 2540p Notebook PC

Technical Specifications

Audio

Hardware	Implementation	IDT 92HD75B High Definition CODEC
	Touch-Sensitive Volume	Volume up, volume down, and mute
	Controls
	Full Duplex	Yes
	Combo Microphone	Stereo
	/Headphone
	Integrated Microphone	Yes, dual-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	8 kHz - 48kHz
	Rate(s)
	DAC	16, 20 or 24-bit
	ADC	16 or 20-bit
Integrated Stereo	Power Rating	2 Watts
Speakers	Impedance	4 Ohms
Communications
Integrated Intel Gigabit	Ethernet Features	10 Mbit/s operation (10BASE-T; IEEE 802.3i; IEEE 802.3 clauses 13-14)
Network Connection		100 Mbit/s operation (100BASE-TX; IEEE 802.3u; IEEE 802.3 clauses 21-
(10/100/1000 NIC)		30)
		1000 Mbit/s operation (1000BASE-T; IEEE 802.3z and 802.3ab; IEEE
		802.3 clauses 34-42)
		Auto-Negotiation (Automatic Speed Selection)
		Full Duplex Operation at all Speeds, Half Duplex operation at 10 and 100
		Mbit/s
		IEEE 802.1p QoS (Quality of Service) Support
		IEEE 802.3x Flow Control (IEEE 802.3 clauses 31-32; configurable)
	Power Management	ACPI compliant -- multiple power modes
		Situation-sensitive features reduce power consumption
	Performance Features	TCP/IP/UDP Checksum Offload (configurable)
	Manageability	Wake-on-LAN from standby and hibernation (Magic Packet and Microsoft
		Wake-Up Frame); Wake-on-LAN from off (Magic Packet only)
		PXE 2.1 Remote Boot
		Statistics Gathering (SNMP MIB II, Ethernet-like MIB, Ethernet MIB (802.3x,
		clause 30))
		Comprehensive diagnostic and configuration software suite

DA - 13566 North America — Version 7 — May 11, 2010 Page 26