MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
12. Limiting Sensitivity: LIM
1. Input SG16 (Vi=90dBµ) into SIF IN, and measure the 400Hz component
level of AF output TP12.
2. Lower the input level of SG16, and measure the level of SG16 when the
VoAF level reaches -3dB.
-3dB
Audio output
[mVrms]
LIM
90
Input lev el
[dBµ]
13. AM Rejection: AMR
1. Input SG17 into SIF IN, and measure the output level of AF OUT (TP12).
This level is named VAM.
2. AMR is;
VoAF (mVr.m.s)
AMR = 20log
(dB)
VAM (mVr.m.s)
14. AF S/N: AF S/N
1. Input SG19 into SIF IN, and measure the output noise level of
AF OUT (TP12).
This level is named VN.
2. S/N is;
VoAF (mVr.m.s)
S/N = 20log
VN (mVr.m.s)
(dB)
MITSUBISHI
ELECTRIC
13
MITSUBISHI [ Mitsubishi Group ]
