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参数资料
| 型号： | MC44BC375UAFC |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC MODULATOR AUD/VID VHF 20 QFN |
| 标准包装： | 490 |
| 类型： | 调制器 |
| 应用： | 机顶盒 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（4x4） |
| 包装： | 管件 |
Application Specific Products
12
Freescale Semiconductor
MC44BC375U
PIN CIRCUIT SCHEMATICS
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC44BC375UAFCR2 | 功能描述:IC MODULATOR AUD/VID VHF 20-QFN RoHS:否 类别:集成电路 (IC) >> 线性 - 视频处理 系列:- 产品变化通告:Product Discontinuation 07/Mar/2011 标准包装:3,000 系列:OMNITUNE™ 类型:调谐器 应用:移动电话，手机，视频显示器 安装类型:表面贴装 封装/外壳:65-WFBGA 供应商设备封装:PG-WFSGA-65 包装:带卷 (TR) 其它名称:SP000365064 |
| MC44BC375UD | 制造商:MOTOROLA 制造商全称: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 类别:集成电路 (IC) >> 线性 - 视频处理 系列:- 产品变化通告:Product Discontinuation 07/Mar/2011 标准包装:3,000 系列:OMNITUNE™ 类型:调谐器 应用:移动电话，手机，视频显示器 安装类型:表面贴装 封装/外壳:65-WFBGA 供应商设备封装:PG-WFSGA-65 包装:带卷 (TR) 其它名称:SP000365064 |
| MC44BC375UEFR2 | 功能描述:IC A-VHF MODULATOR 16-SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 视频处理 系列:- 产品变化通告:Product Discontinuation 07/Mar/2011 标准包装:3,000 系列:OMNITUNE™ 类型:调谐器 应用:移动电话，手机，视频显示器 安装类型:表面贴装 封装/外壳:65-WFBGA 供应商设备封装:PG-WFSGA-65 包装:带卷 (TR) 其它名称:SP000365064 |
| MC44BC375VAEFR2 | 制造商:Freescale Semiconductor 功能描述: |
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