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): 32/40頁
文件大小: 309K
代理商: UPC1876GT
μ
PC1876
32
Data Sheet S11666EJ4V0DS00
(6/6)
Parameter
Monaural total
S/N
Stereo total S/N
SAP total S/N
Reference voltage
DC saturation
voltage
Symbol
S/N
MO
S/N
ST
S/N
SAP
V
ref
V
OSAT2
Measurement
Set MUTE and FMONO pins to “L”.
Input no signal to COM pin, and assume output voltage of ROT pin “V
NMO
”.
Input monaural signal (100% modulation, f = 300 Hz) to COM pin, and assume output
voltage of ROT pin “V
SMO
”.
S/N
= 20 log V
SMO
V
NMO
Execute the same operation for LOT pin.
Set ST/SAP, FMONO pins to “H” and MUTE pin to “L”.
Input pilot signal to COM pin, and assume output voltage of ROT pin “V
NST
”.
Input stereo signal (100% modulation, f = 300 Hz) to COM pin, and assume output
voltage of ROT pin “V
SST
”.
S/N
= 20 log V
SST
V
NST
Execute the same operation for LOT pin.
Set FMONO pin to “H” and SAP1/2, ST/SAP pins to “L”.
Input 5f
H
signal to COM pin, and assume output voltage of ROT pin “V
NSAP
”.
Input SAP signal (100% modulation, f = 300 Hz) to COM pin, and assume output voltage
of ROT pin “V
SSAP
”.
S/N
= 20 log V
SSAP
V
NSAP
Execute the same operation for LOT pin.
Measure DC voltage of 1.5 V pin.
Apply flowing current (1 mA) to DCO pin and measure DC voltage of DCO pin.
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