- 您现在的位置：买卖IC网 > PDF目录4567 > MC44BS374T1AEF (Freescale Semiconductor)IC AUDIO/VIDEO MODULATOR 16-SOIC PDF资料下载
参数资料
| 型号： | MC44BS374T1AEF |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 15/34页 |
| 文件大小： | 0K |
| 描述： | IC AUDIO/VIDEO MODULATOR 16-SOIC |
| 标准包装： | 48 |
| 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： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
MC44BS374T1/374T1A Advance Information
Modes of Operation
For test purposes, it is possible to disable the 263ms delay using Test Mode1-State1.h (this is called speed
up mode).
16.5 UHF Oscillator-VHF range
The UHF oscillator is fully integrated and does not require any external components.
For low frequency testing or VHF range operation (test mode 1, states 1.b to 1.e), the UHF oscillator can
be internally divided by: 2, 4, 8, or 16.
16.6 UHF PLL Section
The reference divider is a fixed divide-by-128, resulting in a reference frequency of 31.25KHz with a
4.0MHz crystal.
The prescaler is a fixed divide-by-8 and is permanently engaged.
The programmable divider division-ratio is controlled by the state of control bits N0 to N11.
The divider-ratio N for a desired frequency F (in MHz) is given by:
with:
NOTE:
Programming a division-ratio N=0 is not allowed.
16.7 Logic Output Port (LOP)
The LOP pin controls any logic function. The primary applications for the LOP are to control an external
attenuator or an external switch, between the antenna input and TV output. A typical attenuator application
with PIN diode is shown in Figure 7. The LOP pin switches the PIN attenuator depending on the signal
strength of the Antenna Input. This reduces the risks of intermodulation in certain areas. The LOP can also
be used as an OFF position bypass switch or for other logic functions in the application.
Figure 7. Typical Attenuator Application with Pin Diode
N
F
8
---
128
4
---------
×
=
N
2048
N11
×
1024
N10
×…… 4 N2
×
2
N1
×
N0
+
+++
=
LOP pin
Vcc
TV Out
Antenna
Input
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料 |
PDF描述 |
|---|---|
| RCB60DHBR-S621 | EDGECARD 120POS DIP R/A .050 SLD |
| HSC44DRYN-S13 | CONN EDGECARD 88POS .100 EXTEND |
| HSC44DRYH-S13 | CONN EDGECARD 88POS .100 EXTEND |
| MC78L08ACPREG | IC REG LDO 8V .1A TO-92 |
| MC78L18ACPRMG | IC REG LDO 18V .1A TO-92 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC44BS374T1AEFR2 | 功能描述:IC AUDIO/VIDEO MODULATOR 16-SOIC RoHS:是 类别:集成电路 (IC) >> 专用 IC 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装 |
| MC44BS374T1D | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:CMOS Audio/Video RF Modulators |
| MC44BS374T1D-R2 | 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 |
| MC44BS374T1EF | 功能描述:IC AUDIO/VIDEO MODULATOR 16-SOIC RoHS:是 类别:集成电路 (IC) >> 专用 IC 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装 |
| MC44BS374T1EFR2 | 功能描述:IC AUDIO/VIDEO MODULATOR 16-SOIC RoHS:是 类别:集成电路 (IC) >> 专用 IC 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装 |
发布紧急采购，3分钟左右您将得到回复。