Acer AM778 Руководство - Страница 20

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2.7.6 Power Connector

All units shall have an IEC/CEE-22 type male power receptacle.

2.8 Plug & Play(EDID)

The monitor will be capable of sending a VESA standardized EDID file through the DDC (pins 12,

15 of the VGA connector).

2.9 Audio Technical specification (AM777/677 Only)

2.9.1

General Description:

Output power

Total harmonic distortion

Input signal sensitivity

Input impedance

Frequency response range

Difference of L and R output

2.9.2

Electrical characteristics (Tamb=25

Audio amplifier(USE Panasonic VP-7723A Audio Analyzor. )

Item

Input Voltage(V)

Input Current(m A)

Audio Voltage Gain

Frequency Response

Signal to Noise ratio

Total harmonic distortion

Cross talk

Output Watt.

Volume Control

2.9.3

Speakers

Maximum power

Impedance

Frequency response range

Total harmonic distortion

2.9.4

Headphone output

Output power

: 1W + 1W maximum

: Less than 1 % (except speakers distortion)

: 0.5 Vrms for full output

: 47 Kohm +/- 5 %

: 100Hz – 20kHz (except speakers response)

Less than 2 dB

)

Audio Input

Freq.

500m Vrms 1KHz

500m Vrms 300Hz-20KHz -10dB

500m Vrms 1KHz

: 1 W per speaker(max)

: 4 ohm +/- 15 % @ 1kHz 1.0Hz

: 300 Hz – 20 kHz (S.P.L. – 10 dB)

: Less than 5 % @ 0.125 W 1kHz

: 1.6 mW for 32 ohms Headphone

Spec.

Min.

Typ.

500

Comment

Max.

800

6 d B

Volume Max.,load 4 Ω

+10d B Volume Max.,load 4 Ω

-40dB Volume Max.,load 4 Ω

except speakers distortion

-30dB Volume Max.,load 4 Ω

Volume Max.,load 4 Ω

Analog