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參數(shù)資料
| 型號： | MC44BC375T |
| 廠商： | Motorola, Inc. |
| 英文描述： | PLL Tuned VHF Audio/ Video High Integration Modulator ICs |
| 中文描述： | 甚高頻鎖相環(huán)調(diào)諧音頻/視頻調(diào)制器的高集成芯片 |
| 文件頁數(shù)： | 10/20頁 |
| 文件大小： | 537K |
| 代理商： | MC44BC375T |
10
MC44BC375/U/J/T Technical Data
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Characterization Measurement Conditions
Video: 5 step Grey Scale- 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.
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 largest positive or negative difference
The video analyzer method takes the worst step from the first 4 steps.
Video Differential Gain
Video: 5 step Grey Scale- 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.
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.
CCIR line 330 corresponds to FCC line 17 in NTSC/M standard
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
Audio Modulation Depth - FM Modulation
Device and Signals Set-up
Measurement Set-up
DIFF PHASE =
* 100%
the phase at position 0
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 |
|---|---|
| MC44BC375TD | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned VHF Audio/Video High Integration Modulator ICs |
| MC44BC375U | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned VHF Audio/Video High Integration Modulator ICs |
| MC44BC375UA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned VHF Audio/Video High Integration IC |
| MC44BC375UAD | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned VHF Audio/Video High Integration IC |
| MC44BC375UADEVK | 功能描述:射頻開發(fā)工具 BC375UA(16 PIN) EVAL KIT RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
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