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參數(shù)資料
| 型號： | ISL59830IAZ-T13 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC VIDEO DRIVER TRUE SGL 16-QSOP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 應(yīng)用： | 驅(qū)動器 |
| 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： | 120mA |
| 電流 - 輸出 / 通道： | 50mA |
| 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： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | ISL59830IAZ-T13DKR |
10
FN7489.6
May 4, 2006
Demo Board Schematic
Description of Operation and Application
Information
Theory Of Operation
The ISL59830 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 of from 0V to
3.3V, the ISL59830 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 ISL59830 fabricated on a dielectrically 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
ISL59830 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 essentially by 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 ISL59830 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 ISL59830 and local
feedback reduces output impedance to less than a 2
Ω at low
frequency. However, since output impedance of the device is
1.0F
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
BLUE_IN
R1
75
Ω
R2
75
Ω
R3
75
Ω
VCC
REFERENCE
CONTROL
C4
C2
0.1F
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
1k
Ω
1k
Ω
499
Ω
Option: Panasonic 120
Ω Bead
EXC3BP121H
Lower Amp output noise from charge pump
R7
R8
R4
VCC
D1
1N4148
(or similar)
ISL59830
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| ISL59830IAZ-T7 | 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:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 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 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| ISL59831 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Single Supply Video Driver with Reconstruction Filter and Charge Pump |
| ISL59831IRTZ | 功能描述:顯示驅(qū)動器和控制器 ISL9103IRUW EVALRD 1 RHS CMPL 6LD RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| ISL59831IRTZ-T7 | 功能描述:顯示驅(qū)動器和控制器 ISL90843W LW NOISE LW PWR I2C BUS 256 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| ISL59832 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Channel, Single Supply Video Reconstruction Filter with Charge Pump |
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