BBK SMP129HDT2, Руководство по обслуживанию, Страница: 5 / 29

5
Electrical Specifications
A Audio Section
（
MPEG-1 Layer
Ⅱ
, R. L Track Output
）
No.
ITEM UNIT REQUIREMENTS Test Environment
1 Audio Output Level
V
1.0
～
2.0
Output impedance is 10KΩ 1KHz 0dB
2 Frequency Characteristics
dB
+1/-2.0 20Hz-60Hz

0.5
60Hz-17.5KHz
+1/-3 17.5KHz-20KHz
3 S/N
dB
≥
70 1KHz 0dB weighting
4
L/
R Channel Separation
dB
≥
60
N-CBAR100.TS f= 1KHz
P-CBAR75.TS
5 L/R Channel Level Difference
dB
≤
0.5 60Hz-18KHz
6 Audio THD
% ≤ 1 60Hz-18KHz
7 Digital Coaxial Output Level
Vp-p
0.5

20%
75Ω Load
B Video (MPEG-2MP
＠
ML)
1 Output range
Video
Vp-p
1.0

15%
75Ω Load
Brightness/RGB 0.7
±
10%
Sync 0.30

8%
2 Frequency Characteristics (75Ω)
dB

0.5 0.5-4.8MHz
dB
≤
+0.5/-1.0 4.8-5.0MHz
dB
≤
+0.5/-4 5.0-5.5MHz
3 Brightness S/N dB ≥56 WTD 5MHz
4 Chromatic S/N dB
AM≥58
Load 75

PM≥51
5
Differential gain
（
DG
）
%
≤

5
Load 75

6
Differential phase
（
DP
）
°
≤

5
Load 75

7 Brightness non-linear distortion %
≤ 5
Load 75

8
△
τ chrominance-luminance delay inequality
ns
≤

30
Load 75

9
△
K Chrominance-luminance Gain Inequality
%
≤

5
Load 75

10
Brightness Waveform Distortion % ≤ 3
Load 75

11
Chrominance Subcarrier Offset is not more than
Hz 200 Load 75

C Demodulation
1 Input Frequency Range MHz 174~230MHz,470
～
862MHz (VHF/UHF)
2 Input Level Range dBm -75
～
-20
3 Frequency Offset MHz -0.4MHz~+0.74MHz
D Power Supply (~165-264V)
1
+5V mA 2000 5%
2
+12V Ma 120 10%
3
+5V Active Antenna Amplifier mA 30 5V overload protection
E Others
1 Free Fall Meets QJ/ET08.02-2005 Standards
2 Remote Control Distance M
≥ 8 In line
≥
6 With range of

30
°
3 Rated Power Consumption W 10