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參數(shù)資料
| 型號： | ISL59833IAZ-T7 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 3/15頁 |
| 文件大小： | 0K |
| 描述： | IC VIDEO DRIVER TRUE SGL 16-QSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 應(yīng)用： | 電壓反饋 |
| 輸出類型： | 滿擺幅 |
| 電路數(shù)： | 3 |
| -3db帶寬： | 200MHz |
| 轉(zhuǎn)換速率： | 500 V/µs |
| 電流 - 電源： | 97mA |
| 電流 - 輸出 / 通道： | 80mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-QSOP |
| 包裝： | 帶卷 (TR) |
11
FN6334.1
March 5, 2007
Demo Board Schematic
Description of Operation and Application
Information
Theory Of Operation
The ISL59833 is a highly practical and robust marriage of
three high bandwidth, high speed, low power, rail-to-rail
voltage feedback amplifiers with a charge pump to provide a
negative rail without an additional power supply. Designed to
operate with a single supply voltage range from 0V to 3.3V,
the ISL59833 eliminates the need for a split supply with the
incorporation of a charge pump capable of generating a
bottom rail as much as 1.6V below ground for a 4.9V range
on a single 3.3V supply. This performance is ideal for NTSC
video with its negative-going sync pulses.
THE AMPLIFIER
The ISL59833 fabricated on a di-electrically isolated high
speed 5V Bi-CMOS process with 4GHz PNPs and NPN
transistor exceeding 20GHz - perfect for low distortion, low
power demand and high frequency circuits. While the
ISL59833 utilizes somewhat standard voltage mode
feedback topologies, there are many non-standard analog
features providing its outstanding bandwidth, rail-to-rail
operation, and output drive capabilities. The input signal
initially passes through a folded cascode, a topology
providing enhanced frequency response by essentially fixing
the base collector voltage at the junction of the input and
gain stage. The collector of each input device looks directly
into an emitter that is tied closely to ground through a
resistor and biased with a very stable DC source. Since the
voltage of this collector is "locked stable" the effective
bandwidth limiting of the Miller capacitance is greatly
reduced. The signal is then passed through a second fully-
realized differential gain stage and finally through a
proprietary common emitter output stage for improved
rail-to-rail output performance. The result is a highly-stable,
low distortion, low power, and high frequency amplifier
capable of driving moderately capacitive loads with near
rail-to-rail performance.
INPUT OUTPUT RANGE
The three amplifier channels have an input common mode
voltage range from 0.15V below the bottom rail to within
100mV of the positive supply, VS+ pin (Note: bottom rail is
established by the charge pump at negative one half the
positive supply). As the input signal moves outside the
specified range, the output signal will exhibit increasingly
higher levels of harmonic distortion. And of course, as load
resistance becomes lower, the current drive capability of the
device will be challenged and its ability to drive close to each
rail is reduced. For instance, with a load resistance of 1k
Ω
the output swing is within a 100mV of the rails, while a load
resistance of 150
Ω limits the output swing to within around
300mV of the rails.
AMPLIFIER OUTPUT IMPEDANCE
To achieve near rail-to-rail performance, the output stage of
the ISL59833 uses transistors in the common emitter
configuration, typically producing higher output impedance
than the standard emitter follower output stage. The
exceptionally high open loop gain of the ISL59833 and local
feedback reduces output impedance to less than a 2
Ω at low
frequency. However, since output impedance of the device is
exponentially modulated by the magnitude of the open loop
gain, output impedance increases with frequency as the
open loop gain decreases with frequency. This inductive-like
effect of the output impedance is countered in the ISL59833
1
2
3
4
16
15
14
13
5
6
7
12
11
10
8
9
RIN
GIN
BIN
REF
VEE
GND
VEEOUT
DGND
ROUT
GOUT
BOUT
VCC
EN
VCC
NC
DVCC
RED_IN
GREEN_IN
R1
75
Ω
R2
75
Ω
R4
75
Ω
R5
75
Ω
R6
75
Ω
VCC
RED_OUT
GREEN_OUT
BLUE_OUT
C3
0.1F
ENABLE
1
3
2
C5
0.1F
VCC
Option: Panasonic 120
Ω Bead
EXC3BP121H
Lower Amp output noise from charge pump
0.1F
R3
75
Ω
OFFSET
CONTROL
C4
C2
0.1F
1k
Ω
499
Ω
R8
R4
VCC
ISL59833
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL59834 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad Channel, Single Supply, Video Reconstruction Filter with On-Board Charge Pump |
| ISL59834IRZ | 功能描述:有源濾波器 ISL9104AIRUW EVALBRD 1 6LD U 1 2V RHS RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| ISL59837 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:200MHz Single Supply Video Driver With Charge Pump and Power Down |
| ISL59837IAZ | 功能描述:IC VIDEO DRIVER TRUE SGL 16-QSOP RoHS:是 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 |
| ISL59837IAZ-EVALZ | 功能描述:EVAL BOARD FOR ISL59837IAZ RoHS:是 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:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
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