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參數(shù)資料
| 型號： | MC44BS374T1EF |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 11/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AUDIO/VIDEO MODULATOR 16-SOIC |
| 標準包裝： | 48 |
| 類型： | NTSC/PAL 調制器 |
| 應用： | 音頻/視頻，VCR，機頂盒 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-SOIC N |
| 包裝： | 管件 |
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Characterization Measurement Conditions
MC44BS374T1/374T1A Advance Information
Video Differential Gain
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.
On line CCIR 330 shown below, the video analyzer DG measure
consists of calculating the difference of the Chroma amplitude at the
black level and the different amplitudes 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 Modulation Depth
No Audio signal
Video: 10 step grey scale
This is measured using a HP8596E Spectrum Analyzer with a TV
Trigger option, allowing demodulation and triggering on any specified
TV Line. The analyzer is centred on the maximum peak of the Video
signal and reduced to zero Hertz span in Linear mode to demodulate
the Video carrier.
The Modulation Depth is calculated as (A-B)/A x 100 in%
Picture to Sound ratio
No Video signal
No Audio Signal
PS” bit set to 0 and 1
Measure in dBc sound carrier in reference to picture carrier
(TVout_Ref) for PS” bit=0 (PS=12dB typical) and for PS” bit=1
(PS=16dB),
Table 7. Measurement Conditions
Device and Signals Set-up
Measurement Set-up
0
1
2
3
4
5
5-step Greyscale with Chroma subcarrier superimposed
(not to scale), line CCIR 330.
DIFF GAIN
=
* 100%
the amplitude at position 0
the largest positive or negative difference
A ( 6-10mV)
B (0.6 - 3mV)
TV Line Demodulated by Spectrum Analyzer-BG standard
A(mV)
B(mV)
Picture carrier
Sound carrier
+5.5Mhz
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關代理商/技術參數(shù) |
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| MC44BS374T1EFR2 | 功能描述:IC AUDIO/VIDEO MODULATOR 16-SOIC RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調幀器 應用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA（27x27） 包裝:散裝 |
| MC44C401 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:MTS Stereo Encoder |
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| MC44C401FA | 制造商:Freescale Semiconductor 功能描述:STEREO ENCODER - Trays |
| MC44C401FAR2 | 制造商:Freescale Semiconductor 功能描述:STEREO ENCODER T&R - Tape and Reel |
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