MC44BC374CDTB 데이터 시트보기 (PDF) - Freescale Semiconductor

부품명

상세내역

제조사

MC44BC374CDTB

PLL Tuned UHF and VHF Audio/Video High Integration Modulator

Freescale Semiconductor 

Freescale SemiconCdhuarcacttoerriz,atIinoncM.easurement Conditions

Device and Signals Set-up

Measurement Set-up

Second Harmonics of Chroma subcarrier

No audio

Video: a 700mVpk-pk 100Khz sinusoidal

signal is inserted on the black level of

active video area.

Frequency

Frequency

101000KkHhz z

700mVpkpk

700mV pk-pk

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

Picture carrier

Chroma

carrier

Sound

carrier

Chroma 2nd

Harmonic

Fo

+4.43Mhz +5.5Mhz

+8.86Mhz

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.

Frequency

Frequency

4.41030kMHzhz

700mVpkpk

700mV pk-pk

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

Chroma

carrier

Chroma/Sound

Intermod.

Sound

carrier

No Video signal

No Audio signal

Fo +1.07Mhz

+4.43Mhz +5.5Mhz

Picture Carrier Harmonics

Measure in dBc, in reference to picture carrier (TVout_Ref), second and

third harmonic of channel frequency, resulting in the following spectrum.

Picture carrier

2nd harmonic

3rd harmonic

Fo

2Fo

3Fo

MC44BC373C/374C Technical Data

For More Information On This Product,

Go to: www.freescale.com

Share Link: