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参数资料
| 型号： | MC44BC374C |
| 厂商： | Motorola, Inc. |
| 英文描述： | PLL Tuned UHF and VHF Audio/Video High Integration Modulator |
| 中文描述： | 锁相环调谐UHF和VHF音频/视频高集成调制器 |
| 文件页数： | 12/30页 |
| 文件大小： | 915K |
| 代理商： | MC44BC374C |
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12
MC44BC373C/374C Technical Data
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Characterization Measurement Conditions
12
Characterization Measurement Conditions
Device default configuration unless otherwise specified:
Peak White Clip enable
UHF oscillator ON
Sound and video modulators ON
Sound subcarrier frequency = 5.5Mhz
TB1 bit set to ‘0’ (bus format not compatible with MC44353)
Sound Oscillator ON
Logic Output Port LOW
Picture-to-sound carrier ratio = 12dB
System L disabled
Test pattern disabled
All test mode bits are ‘0’
Frequency from channel 21 to 69
RF Inputs / Output into 75ohm Load using a 75 to 50 ohm transformation. Video Input 1V pk-pk.
Audio pre-emphasis circuit engaged.
Device and Signals Set-up
Measurement Set-up
TVOUT output level
Video: 10 steps grey scale
No audio
Measured picture carrier in dBuV with the HP8596E Spectrum Analyzer
using a 75 to 50 ohm transformation, all cables losses and
transformation pads having been calibrated.
Measurement used as a reference for other tests: TVout_Ref
TVOUT output attenuation
“ATT” bit = 1
No Video signal
No Audio signal
Measure in dBc picture carrier at “ATT”=”1” with reference to picture
carrier at “ATT”=”0”.
Sound Subcarrier Harmonics
Video: 10 steps grey scale
No Audio signal
Measure in dBc second and third sound harmonics levels in reference to
picture carrier (TVout_Ref).
Picture carrier
Sound carrier
Sound
2nd harm
+5.5Mhz
Fo
+11Mhz +16.5Mhz
Sound
3rd harm
F
n
.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC44BC374CD | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:PLL Tuned UHF and VHF Audio/Video High Integration Modulator |
| MC44BC374CDR2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PLL Tuned UHF and VHF Audio/Video High Integration Modulator |
| MC44BC374CDTB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC44BC374CDTBR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC44BC374CED | 制造商:Motorola Inc 功能描述: |
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