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DCM 170/all
DCM1170

DCM1170
PAGE-2
MCM1170 Elec parameter Test Report
TEST CONDITIONS:
1.POWER SUPPLY: AC.Accordiing to Ver
2.REF OUTPUT:8 1W , Sound effect off
3.FM MONO: 22.5KHz Dev,1KHz MODULATION ,75 IMPEDANCE ,60dBu
4.FM STEREO : MAIN+SUB = 50KHz, PILOT : 10KHz,COMPOSITE: 40.0KHz
FM SECTION
TEST DATA
NO TEST ITEMS UNIT NOM. LIMIT
1# 2#
87.5 87.5 87.5
1 Fvequency Range MHz
108 108 108
90 18 22 17 16
2 26dB QUENTING SENSITIVITY 98 dBf 18 22 17 16
106 18 22 19 17
3 -3dB LIMITING POINT dBf 17 25 21 20
4 FM IF REJECTION 98MHZ S/N=26dB dB 55 50 >55 >55
5 IMAGE REJECT 98MHZ S/N=26dB dB 24 20 >24 >24
6 SELECTIVITY S 0.3 dB 40 33 / /
MONO 55 50 58 59
7 S/N
ST 55 50 / /
8 OVERALL DISTERTION % 3 5 0.7 0.8
9 MODULATION HUM dB 45 40 44 40
63Hz