Daewoo DTR-14D3VG, Service Manual

Page: 27 / 73

25
Unless otherise specified, Vcc = 20V, R
L
= 8
Ω
, Rg = 600
Ω
, f = 1 KHz, Ta = 25˚C
CHARACTERISTIC SYMBOL TEST CIRCUIT TEST CONDITION MIN. TYP.L MAX. UNIT
Quescent Current ICCQ – Vin=0 40 90 160 mA
Pout(1) – THD=10% 5.0 6.0 –
Output Power W
Pout(2) – THD=1% – 4.5 –
Total Harmonic Distortion THD – Pout=2W – 0.1 0.6 %
Voltage Gaim Gv – Vout=0.775Vrms (0dBm) 32.5 34.0 35.5 dB
Input Resistance R
IN
– – – 30 – k
Ω
Ripple Rejection Ratio R.R. – Rg=0, fripple=100Hz -50 -60 – dB
Vripple=0dBm
Output Noise Voltage Vno – Rg=10k
Ω
– 0.14 0.3 mVrms
BW=20Hz~20kHz
Rg=0
Cross Talk C.T. – Vout=0.775Vrms(0dBm) – -60 – dB
Two channels input
Muting Threshold V
TH
(
OFF
) – Mute ON pin – 3.7 4.0
V
V
TH
(
ON
) – Mute OFF Pin 2.5 2.8 –
Vout=0.775Vrms Mute
Muting Attenuation ATT – -52 -60 – dB
Three channels input
(4) MAXIMUM RATINGS (Ta = 25˚C)
CHARACYERISTIC SYMBOL RATING UNIT
Supply Voltage VCC 30 V
Output Current (Peak/ch) IO(peak) 2.0 A
Power Dissipation Pd 50 W
Operating Temperature Topr -20~75 ˚C
Storage Temperature Tstg -55~150 ˚C
(5) Electrical Characteristics
Note: Derated above Ta=25˚C in the proportion of 400mW/˚C