поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

ISL59118IRUZ-T7 датащи(PDF) 8 Page - Intersil Corporation

номер детали ISL59118IRUZ-T7
подробное описание детали  Dual Video Driver with Low Pass Filter
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  INTERSIL [Intersil Corporation]
домашняя страница  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL59118IRUZ-T7 датащи(HTML) 8 Page - Intersil Corporation

Back Button ISL59118IRUZ-T7 Datasheet HTML 2Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 3Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 4Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 5Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 6Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 7Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 8Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 9Page - Intersil Corporation ISL59118IRUZ-T7 Datasheet HTML 10Page - Intersil Corporation  
Zoom Inzoom in Zoom Outzoom out
 8 / 10 page
background image
8
FN6317.2
September 22, 2006
Application Information
The ISL59118 is a single-supply rail-to-rail dual (two
composite channel) video amplifier with internal sync tip
clamps, a typical -3dB bandwidth of 9MHz and slew rate of
about 40V/µs. This part is ideally suited for applications
requiring high performance with very low power
consumption. As the performance characteristics and
features illustrate, the ISL59118 is optimized for portable
video applications.
Internal Sync Clamp
Embedded video DACs typically use ground as their most
negative supply. This places the sync tip voltage at a
minimum of 0V. Presenting a 0V input to most single supply
amplifiers will saturate the output stage of the amplifier
resulting in a clipped sync tip and degraded video image.
The ISL59118 features an internal sync clamp and offset
function that level shifts the entire video signal to the
optimum level before it reaches the amplifiers’ input stage.
These features also help avoid saturation of the output stage
of the amplifier by setting the signal closer to the best
voltage range.
The simplified block diagram on the front page shows the
basic operation of the ISL59118’s sync clamp. The inputs’
AC-coupled video sync signal is pulled negative by a current
source at the input. When the sync tip goes below the
comparator threshold, the comparator output goes high,
pulling up on the input through the diode, forcing current into
the coupling capacitor until the voltage at the input is again
0V, and the comparator turns off. This forces the sync tip
clamp to always be 0V, setting the offset for the entire video
signal.
The Sallen Key Low Pass Filter
The Sallen Key is a classic low pass configuration. This
provides a very stable low pass function, and in the case of
the ISL59118, a three-pole roll-off at 9MHz. The three-pole
function is accomplished with an RC low pass network placed
in series with and before the Sallen Key. One pole provided by
the RC network and poles two and three provided by the
Sallen Key for a nice three-pole roll-off at 9MHz.
Output Coupling
The ISL59118 can be AC or DC coupled to its output. When
AC coupling, a 220µF coupling capacitor is recommended to
ensure that low frequencies are passed, preventing video
“tilt” or “droop” across a line.
The ISL59118’s internal sync clamp makes it possible to DC
couple the output to a video load, eliminating the need for
any AC coupling capacitors, saving board space, cost, and
eliminating any “tilt” or offset shift in the output signal. The
trade off is larger supply current draw, since the DC
component of the signal is now dissipated in the load
resistor. Typical load current for AC coupled signals is 5mA
compared to 10mA for DC coupling.
Output Drive Capability
The ISL59118 does not have internal short circuit protection
circuitry. If the output is shorted indefinitely, the power
dissipation could easily overheat the die or the current could
eventually compromise metal integrity. Maximum reliability is
maintained if the output current never exceeds ±40mA. This
limit is set by the design of the internal metal interconnect.
Note that for transient short circuits, the part is robust.
Short circuit protection can be provided externally with a
back match resistor in series with the output placed close as
possible to the output pin. In video applications this would be
a 75
Ω resistor and will provide adequate short circuit
protection to the device. Care should still be taken not to
stress the device with a short at the output.
FIGURE 21. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FIGURE 22. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
Typical Performance Curves (Continued)
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
255075
100
150
AMBIENT TEMPERATURE (°C)
125
85
0.6
0.4
θ
JA =
19
4°C
/W
µT
Q
FN
10
515mW
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
255075
100
150
AMBIENT TEMPERATURE (°C)
775mW
θ
JA=129
°C/W
µTQ
FN10
125
85
ISL59118


Аналогичный номер детали - ISL59118IRUZ-T7

производительномер деталидатащиподробное описание детали
logo
Renesas Technology Corp
ISL59118IRUZ-T7 RENESAS-ISL59118IRUZ-T7 Datasheet
592Kb / 10P
   Dual Video Driver with Low Pass Filter
More results

Аналогичное описание - ISL59118IRUZ-T7

производительномер деталидатащиподробное описание детали
logo
Renesas Technology Corp
ISL59118 RENESAS-ISL59118 Datasheet
592Kb / 10P
   Dual Video Driver with Low Pass Filter
logo
Faraday Technology
FF0200L FARADAY-FF0200L Datasheet
127Kb / 2P
   LOW PASS VIDEO FILTER
FF0300P FARADAY-FF0300P Datasheet
127Kb / 2P
   LOW PASS VIDEO FILTER
FF0200M FARADAY-FF0200M Datasheet
127Kb / 2P
   LOW PASS VIDEO FILTER
logo
Asahi Kasei Microsystem...
AKD4250-A AKM-AKD4250-A Datasheet
431Kb / 11P
   1ch video amplifier with low pass filter
AKD4252-A AKM-AKD4252-A Datasheet
341Kb / 11P
   1ch video amplifier with low pass filter
logo
Micro Linear Corporatio...
ML6420 MICRO-LINEAR-ML6420 Datasheet
271Kb / 20P
   Triple/Dual Phase-Equalized, Low-Pass Video Filter
logo
Analog Devices
HMC1023LP5E AD-HMC1023LP5E Datasheet
1Mb / 34P
   72 MHz DUAL PROGRAMMABLE LOW PASS FILTER WITH DRIVER
logo
Hittite Microwave Corpo...
HMC900LP5E HITTITE-HMC900LP5E Datasheet
1Mb / 26P
   50 MHz DUAL PROGRAMMABLE LOW PASS FILTER with DRIVER
logo
Analog Devices
HMC900LP5E AD-HMC900LP5E Datasheet
1Mb / 26P
   50 MHz DUAL PROGRAMMABLE LOW PASS FILTER with DRIVER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com