- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄4569 > MC44BS374CAEF (Freescale Semiconductor)IC AUDIO/VIDEO MODULATOR 16-SOIC PDF資料下載
參數(shù)資料
| 型號(hào)： | MC44BS374CAEF |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 14/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AUDIO/VIDEO MODULATOR 16-SOIC |
| 標(biāo)準(zhǔn)包裝： | 48 |
| 類型： | NTSC/PAL 調(diào)制器 |
| 應(yīng)用： | 音頻/視頻，VCR，機(jī)頂盒 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC N |
| 包裝： | 管件 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當(dāng)前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁
MC44BS374CA Modes of Operation
MC44BS374CA Technical data
For test purposes, it is possible to disable the 263ms delay using Test Mode1-State1.h (this is called speed
up mode).
15.5 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.
15.6 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.
15.7 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 6. 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 6. 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
..
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC44BS373CAEF | AUDIO VIDEO INTERGRATION MOD |
| MC44BS373CAD | AUDIO VIDEO INTERGRATION MOD |
| MAX9951DCCB+TD | IC PMU DUAL 64TQFP |
| MAX9952FCCB+ | IC PPMU DUAL SPI 64TQFP |
| USB-FILESYS-SS | IC SYSTEM USB FAT FILE 20-SSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC44BS374CAEFR2 | 功能描述:IC AUDIO/VIDEO MODULATOR 16-SOIC RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝 |
| MC44BS374T1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned UHF and VHF Audio/Video High Integration Modulator |
| MC44BS374T1A | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned UHF and VHF Audio/Video High Integration Modulator |
| MC44BS374T1AD | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:CMOS Audio/Video RF Modulators |
| MC44BS374T1AD-R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PLL Tuned UHF and VHF Audio/Video High Integration Modulator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。