VocoPro DTX-9909K - Manual (Page 9)

9
NO Test item Test condition Unit Technology requirement
1 Input Sensitivity Input 1KHz signal, output 8 Ω load，distortion＝1% mV
L/R/C/SL/SR/SBL/SBR=200～
250
2 Overload electromotive force Input 1KHz signal, output 8 Ω load，distortion＝1% V ≥ 2
3
Output V/ W of distortion
limit
Input 1KHz signal, output 8 Ω load，distortion＝1% V ≥ 28
4 CH gain Input 1KHz signal, output 8 Ω load dB ≤1
5 Frequency response
Input 1KHz signal, output 8 Ω 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
8 Ω load
dB 1K≥55、 10K≥50
7 DVD/VIDEO CH cross talk
Separated input 1KHz and 10KHz signal, output
8 Ω load
dB 1K≥65、 10K≥55
8 Tone range
Input 1KHz signal, Output 8 Ω 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 8 Ω
mV ≤3
22 Mic input sensitivity Input 1KHz signal, Output 8 Ω load，distortion＝1% mV ＝ 15±5
23 MIC Overload electromotive
force
Input 1KHz signal, Output 8 Ω load，distortion＝1% mV ≥ 250
24 Tone range
Input 1KHz signal, Output 8 Ω load1W，all the tune
at middle point for reference ,test at 100Hz and
10KHz dB ± 10(±2)
25 MIC Frequency response
Input 1KHz signal, Output 8 Ω load 1W， all the
tune at middle point for reference, test frequency
range: 30Hz～10Khz
dB ≤1
26 MIC（S/N） Rating output as reference value dB S/N≥60 ，A weight≥65
27 Excess noise OUT 8 Ω 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 75 Ω load mV Output＝900～950mVpp
Specification
MIN TYP MAX
603KHz － 60 74
999KHz － 56 72
39 AM
26dB limit noise
sensitivity
1404KHz
dBu
－ 56 72
Technical Specifi cations