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Test item
Test condition
Unit Technology requirement
1 Input Sensitivity
Input 1KHz signal, output
8Ω load，distortion＝1%
mV
L/R/C/SL/SR/SBL/SBR=20
0～
25
0
2 Overload electromotive force
Input 1KHz signal, output
8Ω load，distortion＝1%
V
≥2
3
Output V/ W of distortion
limit
Input 1KHz signal, output
8Ω load，distortion＝1%
V
≥28
4 CH gain
Input 1KHz signal, output
8Ω load
dB ≤1
5 Frequency response
Input 1KHz signal, output
8Ω load
1W，
all the tune
at middle point for reference
，test frequency range:
20Hz～20Khz,
dB ≤1
6 CH separated ratio
Separated input 1KHz and 10KHz signal, Output
8Ω load
dB
1K
≥55、 10K≥50
7 DVD/VIDEO CH cross talk
Separated input 1KHz and 10KHz signal, output
8Ω load
dB
1K
≥65、 10K≥55
8 Tone range
Input 1KHz signal, Output
8Ω load 1W，all the tune
at middle point for reference
，Test frequency
range: 100Hz～10Khz, test at 100Hz and 10KHz
dB
±8(±2)
19 Damp coefficient
Under Working condition,，8Ωmono work，100Hz
＞100
20 S/N Rating output as parameter dB
S/
N≥75， A weight≥82
21
excess noise
No signal input,，Use 600Ωresistance short circuit
input，OUT 8Ω
mV
≤3
22 Mic input sensitivity
Input 1KHz signal, Output
8Ω load，distortion＝1%
mV
＝15±5
23 MIC Overload electromotive
force
Input 1KHz signal, Output
8Ω load，distortion＝1%
mV
≥250
24 Tone range
Input 1KHz signal, Output
8Ω load1W，all the tune
at middle point for reference ,test at 100Hz and
10KH
z
dB
±10(±2)
25 MIC Frequency response
Input 1KHz signal, Output
8Ω load
1W，all the
tune at middle point for reference, test frequency
range: 30Hz～10Khz
dB ≤1
26
MI
C（S/N）
Rating output as reference value dB
S/N≥60 ，A weight≥65
27
Excess noise
OUT 8Ω No signal input, short circuit input
mV
≤15
32 SW input sensitivity
Input 100Hz signal, distortion＝1%，7.1 Input
mV ≤360
33
SW linear input Overload
electromotive force
Input frequency 100Hz，7.1 Input
V
≥3.5
34 SW linear Max output voltage
Input 100Hz signal, distortion＝1%，7.1 Input
V
≥3
35 Headphone max output
Input 1KHz signal, Output 32
Ω load，distortion＝
1%
V
≥1
36
REC Max output without
distortion
Input 1KHz signal, Output 10K load
，distortion＝
1%
V
≥1.5
37 Video frequency test
Input 6.5MHz/1Vpp, Output 75Ω load
mV
Output
＝900～950mVpp
Specification
MIN TYP MAX
603KHz
－
60 74
999KHz
－
56 72
39 AM
26dB limit noise
sensitivity
1404KH
z
dB
u
－
56 72
Technical Specifi cations