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參數資料
| 型號： | EL4584CN |
| 英文描述： | Horizontal Genlock, 4 FSC |
| 中文描述： | 水平同步鎖相，4金管會 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 275K |
| 代理商： | EL4584CN |
EL4584C
February
1995
Rev
B
EL4584C
Horizontal Genlock 4 FSC
Note All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication however this data sheet cannot be a ‘‘controlled document’’ Current revisions if any to these
specifications are maintained at the factory and are available upon your request We recommend checking the revision level before finalization of your design documentation
4584C
1994 Elantec Inc
Features
36 MHz general purpose PLL
4FSC based timing (use the
EL4585 for 8 FSC)
Compatible wEL4583 Sync
Separator
VCXO Xtal or LC tank
oscillator
k2 ns jitter (VCXO)
User controlled PLL capture and
lock
Compatible with NTSC and PAL
TV formats
8 pre-programmed TV scan rate
clock divisors
Selectable external divide for
custom ratios
Single 5V low current operation
Applications
Pixel Clock regeneration
Video compression engine
(MPEG) clock generator
Video capture or digitization
PIP (Picture in Picture) timing
generator
Text or graphics overlay timing
Ordering Information
Part No
Temp Range Package Outline
EL4584CN -40 Cto a85 C 16-Pin DIP MDP0031
EL4584CS -40 Cto a85 C 16-Lead SO MDP0027
For 6Fsc and 8Fsc clock frequencies
see
EL4585 datasheet
Demo Board
A demo PCB is available for this
product Request ‘‘EL45845 Demo
Board’’
General Description
The EL4584C is a PLL (Phase Lock Loop) sub system designed
for video applications but also suitable for general purpose use
up to 36 MHz In a video application this device generates a
TTLCMOS compatible Pixel Clock (Clk Out) which is a multi-
ple of the TV Horizontal scan rate and phase locked to it
The reference signal is a horizontal sync signal TTLCMOS
format which can be easily derived from an analog composite
video signal with the EL4583 Sync Separator An input signal
to ‘‘coast’’ is provided for applications were periodic distur-
bances are present in the reference video timing such as VTR
head switching The Lock detector output indicates correct lock
The divider ratio is four ratios for NTSC and four similar ratios
for the PAL video timing standards by external selection of
three control pins These four ratios have been selected for com-
mon video applications including 4 FSC 3FSC 135 MHz
(CCIR 601 format) and square picture elements used in some
workstation graphics To generate 8 FSC 6FSC 27 MHz (CCIR
601 format) etc use the EL4585 which includes an additional
divide by 2 stage
For applications where these frequencies are inappropriate or
for general purpose PLL applications the internal divider can be
bypassed and an external divider chain used
FREQUENCIES and DIVISORS
Function
3Fsc
CCIR 601
Square
4Fsc
Divisor
851
864
944
1135
PAL Fosc (MHz)
13301
135
1475
17734
Divisor
682
858
780
910
NTSC Fosc (MHz)
10738
135
12273
14318
CCIR 601 Divisors yield 720 pixels in the portion of each line for NTSC and PAL
Square pixels format gives 640 pixels for NTSC and 768 pixels for PAL in the active portion
3Fsc numbers do not yield integer divisors
Connection Diagram
EL4584 SO P-DIP Packages
4584 – 17
相關PDF資料 |
PDF描述 |
|---|---|
| EL4584CS | Horizontal Genlock, 4 FSC |
| EL4584C | Horizontal Genlock（PLL sub system）(水平發生鎖定器（鎖相環附屬系統）) |
| EL4585 | Horizontal Genlock, 8 FSC |
| EL4585C | Horizontal Genlock, 8 FSC |
| EL4585CN | Horizontal Genlock, 8 FSC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| EL4584CS | 功能描述:IC PLL VIDEO GP 36MHZ 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數:1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應商設備封裝:* 包裝:* |
| EL4584CS-T13 | 功能描述:IC GENLOCK HORZ 4FSC 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數:1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應商設備封裝:* 包裝:* |
| EL4584CST-13 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Horizontal Genlock, 4FSC |
| EL4584CS-T7 | 功能描述:IC PLL VIDEO GP 36MHZ 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數:1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應商設備封裝:* 包裝:* |
| EL4584CSZ | 功能描述:鎖相環 - PLL EL4584CSZ H-SYNC GENLOCK RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
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