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參數(shù)資料
| 型號： | UPC1876GT |
| 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)： | 30/40頁 |
| 文件大小： | 309K |
| 代理商： | UPC1876GT |
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μ
PC1876
30
Data Sheet S11666EJ4V0DS00
(4/6)
Measurement
Input SAP signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage of
SOT pin “V
300(SAP)
”.
Input SAP signal (30% modulation, f = 3 kHz) to COM pin. Assume output voltage of
SOT pin “V
3k(SAP)
”.
V
= 20 log V
3k(SAP)
V
300(SAP)
(Noise reduction OFF)
Input SAP signal (30% modulation, f = 300 Hz) to COM pin. Assume output voltage of
SOT pin “V
300(SAP)
”.
Input SAP signal (30% modulation, f = 8 kHz) to COM pin. Assume output voltage of
SOT pin “V
8k(SAP)
”.
V
= 20 log V
8k(SAP)
V
300(SAP)
(Noise reduction OFF)
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
ROT pin “V
ROT
” and output voltage of LOT pin “V
LOT
”.
Sep
= 20 log V
LOT
V
ROT
Execute the same operation for R-only signal.
(Sound multiplex signal generator: 465Z (manufactured by EIDEN Co. Ltd.))
Set ST/SAP, FMONO pins to “H” and MUTE pin to “L”.
Input L-only signal (30% modulation, f = 1 kHz) to COM pin. Assume output voltage of
ROT pin “V
ROT
” and output voltage of LOT pin “V
LOT
”.
Sep
= 20 log V
LOT
V
ROT
Execute the same operation for R-only signal.
(Sound multiplex signal generator: 465Z (manufactured by EIDEN Co. Ltd.))
Set ST/SAP, FMONO pins to “H” and MUTE pin to “L”.
Input L-only signal (30% modulation, f = 3 kHz) to COM pin. Assume output voltage of
ROT pin “V
ROT
” and output voltage of LOT pin “V
LOT
”.
Sep
= 20 log V
LOT
V
ROT
Execute the same operation for R-only signal.
(Sound multiplex signal generator: 465Z (manufactured by EIDEN Co. Ltd.))
Set MUTE and FMONO pins to “L”.
Input monaural signal (100% modulation, f = 1 kHz) to COM pin. Measure output
distortion rate of ROT and LOT pin.
Set ST/SAP, FMONO pins to “H” and MUTE pin to “L”.
Input L-only signal (100% modulation, f = 1 kHz) to COM pin. Measure output distortion
rate of LOT pin.
Execute the same operation for R-only signal (ROT pin).
Set ST/SAP, FMONO pins to “H” and MUTE pin to “L”.
Input L-only signal (100% modulation, f = 8 kHz) to COM pin. Measure output distortion
rate of LOT pin.
Execute the same operation for R-only signal (ROT pin).
Set FMONO pin to “H” and SAP1/2, ST/SAP, MUTE pins to “L”.
Input SAP signal (100% modulation, f = 1 kHz) to COM pin. Measure output distortion
rate of ROT and LOT pin.
Parameter
SAP single
frequency
characteristics 2
SAP single
frequency
characteristics 3
Stereo channel
separation 1
Stereo channel
separation 2
Stereo channel
separation 3
Monaural total
distortion rate
Stereo total
distortion rate 1
Stereo total
distortion rate 2
SAP total
distortion rate
Symbol
V
OSAP22
V
OSAP23
Sep
1
Sep
2
Sep
3
THD
MO
THD
ST1
THD
ST2
THD
SAP1
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