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參數(shù)資料
| 型號： | ISL59311IRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Differential Video Amplifier with Common Mode Sync Encoder and Serial Digital Interface |
| 中文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PQCC32 |
| 封裝： | 5 X 6 MM, ROHS COMPLIANT, MO-220, QFN-32 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大小： | 388K |
| 代理商： | ISL59311IRZ |
10
FN6372.2
April 4, 2007
Operational Description and Application
Information
Introduction
The ISL59311 is designed to differentially drive composite
RGB video signals onto twisted pair lines, while
simultaneously encoding horizontal and vertical sync signals
as common mode output. The entire video signal plus sync
can therefore be transmitted on 3 twisted pairs of wire. When
utilizing CAT-5 cable, the 4th available twisted pair can be
used for transmission of audio, data or control information.
The distribution of composite video over standard CAT-5
cable enables enormous cost and labor savings compared
with traditional coaxial cable, when considering both the
relative low price and ease of pulling CAT-5 cable.
The digital block of the chip is a data transceiver which is
intended to drive one twisted pair line. The maximum
baudrate for this block is 50Mbps.
Functional Description
The ISL59311 provides three fully differential high-speed
amplifiers, suitable for driving high-resolution composite
video signals onto twisted pair or standard coaxial cable.
The input common-mode range extends to the negative rail,
allowing simple ground-referenced input termination to be
used with a single supply. The amplifiers provide a fixed gain
of +2 to compensate for standard video cable termination
schemes. Horizontal and Vertical sync signals (H
SYNC
and
V
SYNC
) are passed to an internal Logic Encoding Block to
encode the sync information as three discrete signals of
different voltage levels. Generally, in differential amplifiers an
external V
REF
pin is used to control the common mode level
of the differential output; in the case of the ISL59311 the
V
REF
of each of the three internal amplifier channels
receives a signal from the Logic Encoding Block with
encoded H
SYNC
and V
SYNC
information. The final output
consists of three fully differential video signals, with sync
encoded on the common mode of each of the three RGB
differential signals. H
SYNC
and V
SYNC
can easily be
separated from the differential output signals, decoded and
transmitted along with the RGB video signals to the video
monitor.
Sync Transmission
The ISL59311 encodes H
SYNC
and V
SYNC
signals on the
common mode output of the differential video signals; Red,
Green and Blue respectively. Data Sheet Table 1 shows the
common mode levels for the different SYNC input
combinations. Note that the sum of the common mode
voltages results in a fixed average DC level with no AC
content. This dramatically reduces EMI radiation into any
common mode signal along the twisted pairs of CAT 5 cable.
Extract Common Mode Sync and Decode H
SYNC
and V
SYNC
H
SYNC
and V
SYNC
can be regenerated from the Common
Mode sync output voltages. The relationships between
H
SYNC
, V
SYNC
and the 3 common mode levels are given by
Table 1. The common mode levels are easily separated from
the differential outputs of the ISL59311 using this simple
resistor network at the cable receiver input of each
differential channel; see Figure 20.
FIGURE 17. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FIGURE 18. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
Typical Performance Curves
(Continued)
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD - QFN EXPOSED
DIEPAD SOLDERED TO PCB PER JESD51-5
3
2.5
2
1.5
1
0.5
0
0
25
50
75
100
150
AMBIENT TEMPERATURE (°C)
P
2.857W
θ
JA
=35CW
QFN32
125
85
JEDEC JESD51-3 AND SEMI G42-88
(SINGLE LAYER) TEST BOARD
0.8
0.7
0.5
0.3
0.2
0.1
0
0
25
50
75
100
150
AMBIENT TEMPERATURE (°C)
P
125
85
0.6
0.4
θ
JA
=125CW
QFN32
758mW
TABLE 1. SYNC SIGNAL ENCODING
HSYNC
VSYNC
COMMON
MODE A
(RED)
COMMON
MODE B
(GREEN)
COMMON
MODE C
(BLUE)
Low
High
3.0
2.0
2.5
Low
Low
2.5
3.0
2.0
High
Low
2.0
3.0
2.5
High
High
2.5
2.0
3.0
ISL59311
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL59311 | Differential Video Amplifier with Common Mode Sync Encoder and Serial Digital Interface |
| ISL59311IRZ-T13 | Differential Video Amplifier with Common Mode Sync Encoder and Serial Digital Interface |
| ISL59420 | 400MHz Multiplexing Amplifier |
| ISL59420IU-T13 | 400MHz Multiplexing Amplifier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL59311IRZ-T13 | 制造商:Intersil Corporation 功能描述:DIFFERENTIAL VIDEO AMPLIFIER W/COMMON 制造商:Intersil Corporation 功能描述:VID AMP TRIPLE 1.3GHZ 5.5V 32QFN EP - Tape and Reel 制造商:Intersil 功能描述:ISL6558IRZ-T W/SCM ASSY & MSL2 ONLY 4 |
| ISL59420 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:400MHz Multiplexing Amplifier |
| ISL59420EVAL1 | 功能描述:EVAL BOARD 1 FOR ISL59420 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:* 標(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
| ISL59420IU | 功能描述:IC AMP MULTIPLEX 400MHZ 10-MSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應(yīng)商設(shè)備封裝:8-uMax-EP 包裝:管件 |
| ISL59420IU-T13 | 功能描述:IC AMP MULTIPLEX 400MHZ 10-MSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應(yīng)商設(shè)備封裝:8-uMax-EP 包裝:管件 |
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