MC44CC373CAEFR2 Freescale Semiconductor, MC44CC373CAEFR2 Datasheet - Page 20

• Manufacturer Part Number: MC44CC373CAEFR2
• Description: Modulator / Demodulator CMOS MOD R3.0 373CA
• Manufacturer: Freescale Semiconductor

Specifications of MC44CC373CAEFR2

• Package / Case: SOIC-16
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 22. Performance Measurement Test Set-ups (continued)
MC44CC373
20
No Video signal
No Audio signal
No audio
Video: 600m V
on the black level of active video area.
Video: 100% White video signal - 1 V
No Audio signal
This is measured using a Demodulator in B/G
(using a CCIR Rec. 567 weighting network,
100 kHz to 5 MHz band with sound trap and
envelope detection, and a Video Analyzer.
Same as above with CCIR filter disabled.
Video: 5 step Grey Scale- 1 V
No Audio signal
This is measured using a Demodulator in B/G
(using a CCIR Rec. 567 weighting network,
100 kHz to 5 MHz band with sound trap, and
envelope detection, and a Analyzer.
Device and Signals Set-up
(PP)
sinusoidal signal inserted
(PP)
.
(PP)
.
Unweighted Video Signal to Noise
Weighted Video Signal to Noise
Measure in dBc, in reference to picture carrier (RFout_Ref), spurious levels
falling into video bandwidth starting from ±100 kHz from the picture carrier up
to ±5 MHz.
The Video signal is demodulated on the spectrum analyzer, and the peak level
of the 100 kHz signal is measured as a reference. The frequency is then swept
from 100 kHz to 5 MHz, and then the difference in dB from the 100 kHz
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.
Video S/N is calculated as 20 x log(700 /N) in dB.
Same as above.
On line CCIR 330, the video analyzer DP measure consists of calculating the
difference of the Chroma phase at the black level and the different chroma
subcarrier phase angles at each step of the greyscale. The largest positive or
negative difference indicates the distortion.
The video analyzer method takes the worst step from the first 4 steps.
Video Differential Phase
In Band Spurious
Video Bandwidth
DIFF PHASE =
the largest positive or negative difference
Measurement Set-up
the phase at position 0
noise level in V
N
rms
Freescale Semiconductor
* 100%
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