mc44bc375 Freescale Semiconductor, Inc, mc44bc375 Datasheet - Page 9

• Manufacturer Part Number: mc44bc375
• Description: Pll Tuned Vhf Audio/ Video High Integration Modulator Ics
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
No Video signal
No Audio signal
No Video signal
No Audio signal
No Video signal
No Audio signal
No audio
Video: 600mVpk-pk sinusoidal signal
inserted on the black level of active video
area.
Video: 100% White video signal - 1Vpk-
pk.
No Audio signal
This is measured using a Rohde &
Schwarz AMFS Demodulator in B/G
(using a CCIR Rec. 567 weighting
network, 100kHz to 5MHz band with
sound trap and envelope detection, and
a Rohde & Schwarz UAF Video
Analyzer.
Same as above with CCIR filter disabled. Same as above.
Device and Signals Set-up
Freescale Semiconductor, Inc.
For More Information On This Product,
In Band Spurious / 4Mhz Crystal Spurious
MC44BC375/U/J/T Technical Data
Unweighted Video Signal to Noise
Weighted Video Signal to Noise
Measure in dBc, in reference to picture carrier (TVout_Ref), second and
third harmonic of channel frequency, resulting in the following spectrum.
Measure in dBuV spurious levels at 0.25, 0.5, 0.75 and 1.5 times channel
frequency, resulting in the following spectrum
Measure from 40Mhz to 1Ghz
Measure in dBc, in reference to picture carrier (TVout_Ref), spurious
levels falling into video bandwidth Fo+/-5Mhz (15.125Khz & 31.25Khz
from reference dividers and 4Mhz from crystal).
The Video signal is demodulated on the spectrum analyzer, and the peak
level of the 100Khz signal is measured as a reference. The frequency is
then swept from 100Khz to 5Mhz, and then the difference in dBc from the
100Khz reference level is measured.
The Video Analyzer measures the ratio between the amplitude of the
active area of the video signal (700mV) and the noise level in Vrms on a
video black level which is show below.
Go to: www.freescale.com
VideoS/N is calculated as 20 x log(700 /N) in dB
Video Differential Phase
Out of Band Spurious
Video Bandwidth
Picture carrier
Spurious
Fo/4
Fo
Characterization Measurement Conditions
Measurement Set-up
2nd harmonic
Fo/2
Picture carrier
noise level in Vrms
.
Fo*3/4
2Fo
N
Fo
3rd harmonic
3Fo
Fo*3/2
9