参数资料
型号: MC44BS374T1AEFR2
厂商: Freescale Semiconductor
文件页数: 8/34页
文件大小: 0K
描述: IC AUDIO/VIDEO MODULATOR 16-SOIC
标准包装: 1
类型: NTSC/PAL 调制器
应用: 音频/视频,VCR,机顶盒
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC N
包装: 剪切带 (CT)
其它名称: MC44BS374T1AEFR2CT
MC44BS374T1/374T1A Advance Information
Characterization Measurement Conditions
Table 7. Measurement Conditions
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).
Second Harmonics of Chroma subcarrier
No audio
Video: a 700m Vpp 100 kHz sinusoidal
signal is inserted on the black level of
active video area.
Measure in dBc, in reference to picture carrier (TVout_Ref), second
harmonic of chroma at channel frequency plus 2 times chroma
frequency, resulting in the following spectrum.
Picture carrier
Sound carrier
Sound
+5.5MHz
Fo
+11MHz +16.5MHz
2nd harm
Sound
3rd harm
700mV pk-pk
Frequency
100kHz
Frequency
100Khz
700mVpkpk
Picture carrier
Sound
Chroma 2nd
+8.86MHz
Fo
+4.43MHz +5.5MHz
Harmonic
carrier
Chroma
carrier
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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