參數(shù)資料
型號(hào): MC44BC375UAEFR2
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 19/20頁(yè)
文件大?。?/td> 0K
描述: IC A-VHF MODULATOR 16-SOIC
標(biāo)準(zhǔn)包裝: 1
類型: 調(diào)制器
應(yīng)用: 機(jī)頂盒
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC N
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面: 809 (CN2011-ZH PDF)
其它名稱: MC44BC375UAEFR2DKR
MC44BC375/U/J/T Technical Data
Characterization Measurement Conditions
Device and Signals Set-up
Measurement Set-up
TVOUT Output Level
Video: 10 steps grey scale
No audio
Measured picture carrier in dBuV with the HP8596E Spectrum Analyzer
using a 75 to 50 ohm transformation, all cables losses and transformation
pads having been calibrated.
Measurement used as a reference for other tests: TVout_Ref
Sound Subcarrier Harmonics
Video: 10 steps grey scale
No Audio signal
Measure in dBc second and third sound harmonics levels in reference to
picture carrier (TVout_Ref).
Second Harmonics of Chroma subcarrier
No audio
Video: a 700mVpk-pk 100Khz sinusoidal
signal is inserted on the black level of
active video area.
Measure in dBc, in reference to picture carrier (TVout_Ref), second
harmonic of chroma at channel frequency plus 2 times chroma
frequency, resulting in the following spectrum.
Chroma/Sound intermodulation
No audio signal
Video: 700mVpk-pk 100Khz sinusoidal
signal inserted on the black level of
active video area.This is generated using
a Rohde & Schwarz Video Generator
SAF and inserting the required frequency
from a RF Signal generator.
Measure in dBc, in reference to picture carrier (TVout_Ref),
intermodulation product at channel frequency plus the sound carrier
frequency (+5,5Mhz) minus the chroma frequency (-4,43Mhz), resulting
in the following spectrum.
Intermodulation product is at the channel frequency +1,07Mhz.
Picture Carrier Harmonics
Picture carrier
Sound carrier
Sound
+5.5Mhz
Fo
+11Mhz +16.5Mhz
2nd harm
Sound
3rd harm
700mV pk-pk
Frequency
100kHz
Frequency
100Khz
700mVpkpk
Picture carrier
Sound
Chroma 2nd
+8.86Mhz
Fo
+4.43Mhz +5.5Mhz
Harmonic
carrier
Chroma
carrier
700mV pk-pk
Frequency
100kHz
Frequency
4.43Mhz
700mVpkpk
Picture carrier
Chroma/Sound
+1.07Mhz
Fo
Intermod.
Sound
+4.43Mhz +5.5Mhz
carrier
Chroma
carrier
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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