MC44BS374T1AEF Freescale, MC44BS374T1AEF Datasheet - Page 18

• Manufacturer Part Number: MC44BS374T1AEF
• Manufacturer: Freescale

Specifications of MC44BS374T1AEF

• Lead Free Status / RoHS Status: Compliant

Characterization Measurement Conditions
No audio
Video: 600mVpp 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 UHF 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.
Video: 5 step Grey Scale- 1Vpk-pk.
No Audio signal
This is measured using a Rohde &
Schwarz AMFS UHF 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.
Device and Signals Set-up
Freescale Semiconductor, Inc.
MC44BS374T1/374T1A Advance Information
For More Information On This Product,
Table 7. Measurement Conditions
Unweighted Video Signal to Noise
Weighted Video Signal to Noise
Go to: www.freescale.com
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 dB 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.
VideoS/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
Video Bandwidth
DIFF PHASE =
the largest positive or negative difference
Measurement Set-up
noise level in Vrms
the phase at position 0
N
* 100%