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參數(shù)資料
| 型號： | MC44BC375UAFCR2 |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 0K |
| 描述： | IC MODULATOR AUD/VID VHF 20-QFN |
| 標準包裝： | 2,500 |
| 類型： | 調(diào)制器 |
| 應用： | 機頂盒 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 20-QFN 裸露焊盤（4x4） |
| 包裝： | 帶卷 (TR) |
Application Specific Products
12
Freescale Semiconductor
MC44BC375U
Figure 3. Pin Schematics
Audio Signal to Noise
Audio: 1.0 KHz, adjustable level
Video: EBU Color Bars
This is measured using a Demodulator in B/G
and an Audio Analyzer at 1.0 KHz. The output
level of the Audio analyzer is varied to obtain
a Modulation Deviation of 25 KHz indicated
on the AMFS Demodulator.
The Audio Analyzer alternately turns ON and OFF its internal audio source to
make a measure of the Audio signal plus noise and then another measure of only
the noise.
The measurement is made using the internal CCIR468-2 Filter of the Audio
Analyzer together with the internal 30+/-2.0 KHz (60 dB/decade) Lowpass filters.
The AMFS demodulator uses a quasi-parallel demodulation as is the case in a
normal TV set. In this mode the Nyquist filter is bypassed and the video carrier
is used without added delay to effectuate intercarrier conversion. In this mode the
phase noise information fully cancels out and the true S/N can be measured.
Table 9. Performance Measurement Test Set-Ups (continued)
Device and Signals Set-Up
Measurement Set-Up
ASN dB
()
20
Signal
Noise
+
() Noise
()
log
×
=
5K
Pin 4: XTAL
Pin 8: SPLLFLT
11.8k
audio
10k
Pin 6: PREM
50k
Pin 7: AUDIOIN
Pin 10: VIDEOIN
500
Pin 13: RF OUT
VCC
1.5K
VCC
Pin 14: RFOVCC
75
VCC
5K
VCC
10K
Pin 15: PLLFLT
VCC
2K
VCC
100
Pin 3: LOP
VCC
Pin 1: CHS
VCC
100K
Pin 2: PSS
Pin 16: SFS
Pin 9: Psave/LO
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC44BC375UD | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:PLL Tuned VHF Audio/ Video High Integration Modulator ICs |
| MC44BC375UEF | 功能描述:IC A-VHF MODULATOR 16-SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標準包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應商設備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| MC44BC375UEFR2 | 功能描述:IC A-VHF MODULATOR 16-SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標準包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應商設備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| MC44BC375VAEFR2 | 制造商:Freescale Semiconductor 功能描述: |
| MC44BC380 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:VHF/ UHF ANTENNA BOOSTER/SPLITTER IC |
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