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参数资料
| 型号： | ISL59605-SPI-EVALZ |
| 厂商： | Intersil |
| 文件页数： | 13/28页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ISL5960X |
| 产品培训模块： | ISL5960x MegaQ Overview |
| 标准包装： | 1 |
| 系列： | * |
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL5960X-EVALZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:MegaQ: An Automatic Composite Video Equalizer, Fully-Adaptive to 1 Mile (1600m) |
| ISL5960X-SPI-EVALZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:MegaQ: An Automatic Composite Video Equalizer, Fully-Adaptive to 1 Mile (1600m) |
| ISL5961 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:14-Bit, +3.3V, 130/210+MSPS, High Speed D/A Converter |
| ISL5961/2IA | 功能描述:IC DAC 14BIT 210MSPS 28-TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率（每秒）:* |
| ISL5961/2IAZ | 功能描述:CONV D/A 14-BIT 3.3V 28-TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散（最大）:941mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC W 包装:带卷 (TR) 输出数目和类型:8 电压，单极 采样率（每秒）:* |
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