參數(shù)資料
型號： UPC1876
廠商： NEC Corp.
英文描述： US MTS DECODER
中文描述： 美國的多邊貿(mào)易體制解碼器
文件頁數(shù)： 28/40頁
文件大?。?/td> 309K
代理商： UPC1876
μ
PC1876
28
Data Sheet S11666EJ4V0DS00
(2/6)
Measurement
Set MUTE and FMONO pin to “L”.
Input monaural signal (100% modulation, f = 300 Hz) to COM pin. Measure output
voltage of ROT and LOT pin. Assume the output voltage of ROT pin “V
ROT
” and the
output voltage of LOT pin “V
LOT
”.
OLR
= 20 log V
ROT
V
LOT
Set MUTE and FMONO pins to “L”.
Input monaural signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage
of ROT pin “V
300(MO)
”.
Input monaural signal (30% modulation, f = 1 kHz) to COM pin. Assume output voltage
of ROT pin “V
1k(MO)
”.
OMO1
= 20 log V
1k(MO)
V
300(MO)
Execute the same operation for LOT pin.
Set MUTE and FMONO pins to “L”.
Input monaural signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage
of ROT pin “V
300(MO)
”.
Input monaural signal (30% modulation, f = 3 kHz) to COM pin. Assume output voltage
of ROT pin “V
3k(MO)
”.
OMO2
= 20 log V
3k(MO)
V
300(MO)
Execute the same operation for LOT pin.
Set MUTE and FMONO pins to “L”.
Input monaural signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage
of ROT pin “V
300(MO)
”.
Input monaural signal (30% modulation, f = 8 kHz) to COM pin. Assume output voltage
of ROT pin “V
8k(MO)
”.
OMO3
= 20 log V
8k(MO)
V
300(MO)
Execute the same operation for LOT pin.
Set MUTE and FMONO pins to “L”.
Input monaural signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage
of ROT pin “V
300(MO)
”.
Input monaural signal (30% modulation, f = 12 kHz) to COM pin. Assume output voltage
of ROT pin “V
12k(MO)
”.
OMO4
= 20 log V
12k(MO)
V
300(MO)
Execute the same operation for LOT pin.
Set ST/SAP, FMONO pins to “H” and MUTE pin to “L”.
Input L-only signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage of
LOT pin “V
300(ST)
”.
Input L-only signal (30% modulation, f = 1 kHz) to COM pin. Assume output voltage of
LOT pin “V
1k(ST)
”.
OST1
= 20 log V
1k(ST)
V
300(ST)
Execute the same operation for ROT pin (R-only signal).
Set ST/SAP, FMONO pins to “H” and MUTE pin to “L”.
Input L-only signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage of
LOT pin “V
300(ST)
”.
Input L-only signal (30% modulation, f = 3 kHz) to COM pin. Assume output voltage of
LOT pin “V
3k(ST)
”.
OST2
= 20 log V
3k(ST)
V
300(ST)
Execute the same operation for ROT pin (R-only signal).
Parameter
Difference
between monaural
L and R output
voltage
Monaural total
frequency
characteristics 1
Monaural total
frequency
characteristics 2
Monaural total
frequency
characteristics 3
Monaural total
frequency
characteristics 4
Stereo total
frequency
characteristics 1
Stereo total
frequency
characteristics 2
Symbol
V
OLR
V
OMO1
V
OMO2
V
OMO3
V
OMO4
V
OST1
V
OST2
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