20 FN6739.2 September 5, 2012 Functional Description MegaQ Overview MegaQ is a fully automated" />
參數(shù)資料
型號： ISL59603IRZ-T7A
廠商： Intersil
文件頁數(shù)： 13/28頁
文件大?。?/td> 0K
描述： IC VIDEO EQUALIZER 20-QFN
產(chǎn)品培訓(xùn)模塊： ISL5960x MegaQ Overview
標(biāo)準(zhǔn)包裝： 250
系列： MegaQ™
類型： 視頻均衡器
應(yīng)用： 安全系統(tǒng)，視頻路由
安裝類型： 表面貼裝
封裝/外殼： 20-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 20-QFN（4x4）
包裝： 帶卷 (TR)
ISL59601, ISL59602, ISL59603, ISL59604, ISL59605
20
FN6739.2
September 5, 2012
Functional Description
MegaQ Overview
MegaQ is a fully automated, stand-alone equalizer for
composite video transmitted over UTP (Unshielded Twisted Pair,
i.e. Cat 5, Cat 6, etc.) or coaxial (RG-59) cables.
Differential video signals sent over long distances of twisted pair
wire exhibit large high frequency attenuation, resulting in loss of
high frequency detail/blurring. The exact loss characteristic is a
complex function of wire gauge, length, composition, and
coupling to adjacent conductors.
The video signal can be restored by applying a filter with the
exact inverse transfer function to the far end signal. MegaQ is
designed to compensate for the losses due to long cables, and
incorporates the functionality and flexibility to match a wide
variety of cable types and loss characteristics.
While MegaQ was designed and optimized for stand-alone
operation, with no need for any external control of any kind, it has
an optional SPI serial interface with some additional features.
Interface” on page 22 for more information on the features and
operation of the serial interface.
Equalization for Various Cable Types
TABLE 1. CABLE TYPES AND LENGTHS
CABLE TYPE
MAXIMUM
LENGTH SUPPORTED
Copper-Core
CAT5/CAT5e
5300 feet
CAT6
5600 feet
Coaxial - RG-59
6000 feet
CAT2/CAT3
(telephone wire)
3000 feet
Belden IMSA Spec 39-2 581718
(3-pair traffic light cable)
5300 feet
Non-Copper-Core*
CAT5/CAT5e CCA
(Copper-Coated Aluminum Core)
2000 feet
Coaxial - RG-59 CCS
(Copper-Coated Steel Core)
1500 feet
*Image quality will be significantly improved over unequalized cable, but
there will still be some image smearing due to the high resistance of the
core material.
FIGURE 45. APPLICATION CIRCUIT FOR UTP CABLE
75.0
SD
SEN
SCK
IN-
GND
IN+
OUT
CFB
VREF
1.0F
49.9
0.47F
DIFFERENTIAL
VIDEO INPUT+
SERIAL
INTERFACE
(OPTIONAL)
DIFFERENTIAL
VIDEO INPUT-
1k
0.047F
VDD1
VDD2
0.1F
Internally
Generated
+5V
300
INVERT
EQ_DISABLE
COLOR
LOCKED
FREEZE
1.0F
49.9
ISL59601
ISL59602
ISL59603
ISL59604
ISL59605
Ferrite Bead –
DC resistance = 1
Ω
,
600
Ω
at 100MHz,
100mA DC current rating
Freezes EQ once
lock is achieved.
Tie FREEZE low if
not used.
4.7F
0.1F
1500pF
C1
C2
R1
R2
R3
C4
R5
C5
R6
VIDEO
OUT
C6
C7
C8
C9
5V
TVS
5V
TVS
Z1
Z2
TVS = Transient Voltage Suppressor
a.k.a. Transorb
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ISL59604IRZ 功能描述:IC VIDEO EQUALIZER 20-QFN RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:MegaQ™ 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND
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ISL59604IRZ-T7A 功能描述:IC VIDEO EQUALIZER 20-QFN RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:MegaQ™ 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)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(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064
ISL59605IRZ 功能描述:IC VIDEO EQUALIZER 20-QFN RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:MegaQ™ 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND
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