參數(shù)資料
型號(hào)： MC44BS374CA
廠商： Motorola, Inc.
英文描述： SWITCH TACT H=4.7MM W/ESD 130GF
中文描述： 鎖相環(huán)調(diào)諧UHF和VHF音頻/視頻高集成調(diào)制器
文件頁(yè)數(shù)： 18/34頁(yè)
文件大?。?/td> 571K
代理商： MC44BS374CA
18
MC44BS374CA Technical data
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Characterization Measurement Conditions
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),
Picture carrier
Table 6. 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(mV)
B(mV)
TV Line Demodulated by Spectrum Analyzer-BG standard
Sound carrier
+5.5Mhz
Fo
F
n
.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC44BS374CAD 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:CMOS Audio/Video RF Modulators
MC44BS374CAEF 功能描述:調(diào)節(jié)器/解調(diào)器 MOD BS374CA LEAD FREE RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel
MC44BS374CAEFR2 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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
MC44BS374T1 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned UHF and VHF Audio/Video High Integration Modulator
MC44BS374T1A 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned UHF and VHF Audio/Video High Integration Modulator
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