Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

MAX9532 Datasheet(PDF) 7 Page - Maxim Integrated Products

Part # MAX9532
Description  DirectDrive Video Amplifier with Short-to-Battery Protection
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX9532 Datasheet(HTML) 7 Page - Maxim Integrated Products

Back Button MAX9532_11 Datasheet HTML 3Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 4Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 5Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 6Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 7Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 8Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 9Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 10Page - Maxim Integrated Products MAX9532_11 Datasheet HTML 11Page - Maxim Integrated Products Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 13 page
background image
Detailed Description
The MAX9532 DirectDrive video amplifier with short-to-
battery protection features an internal 5-pole
Butterworth lowpass filter with the amplifier configured
with a gain of 4. The MAX9532 accepts DC-coupled or
AC-coupled full-scale input signals of 0.5VP-P.
Integrated short-to-battery protection prevents the
MAX9532 from being damaged when the output is
short circuited to the battery in automotive applications.
DirectDrive
Background
Integrated video filter amplifier circuits operate from a
single supply. The positive power supply usually cre-
ates video output signals that are level-shifted above
ground to keep the signal within the linear range of the
output amplifier. For applications where the positive DC
level is not acceptable, a series capacitor can be
inserted in the output connection to eliminate the posi-
tive DC level shift. The series capacitor cannot truly
level shift a video signal because the average level of
the video varies with picture content. The series capaci-
tor biases the video output signal around ground, but
the actual level of the video signal can vary significantly
depending upon the RC time constant and the picture
content.
The series capacitor creates a highpass filter. Since the
lowest frequency in video is the frame rate, which is
between 24Hz and 30Hz, the pole of the highpass filter is
ideally an order of magnitude lower in frequency than
the frame rate. Therefore, the series capacitor must
be very large, typically from 220µF to 3000µF. For
space-constrained equipment, the series capacitor is
unacceptable. Changing from a single series capacitor to
a SAG network that requires two smaller capacitors can
only reduce space and cost slightly.
Video Amplifier
When the full-scale video signal from a video DAC is
500mV, the black level of the video signal created by
the video DAC is around 150mV. The MAX9532 shifts
the black level to near ground at the output so that the
active video is above ground and the sync is below
ground. The amplifier needs a negative supply for the
output stage to remain in the linear region when driving
sync below ground.
The MAX9532 includes an integrated charge pump and
linear regulator to create a low-noise negative supply
from the positive supply voltage. The charge pump
inverts the positive supply to create a raw negative volt-
age that is then fed into the linear regulator filtering out
the charge-pump noise.
Comparison Between DirectDrive Output
and AC-Coupled Output
The actual level of the video signal varies less with a
DirectDrive output than with an AC-coupled output. The
average video signal level changes depending upon
the picture content. With an AC-coupled output, the
average level changes according to the time constant
formed by the series capacitor and series resistance
(usually 150
Ω). For example, Figure 1 shows an AC-
coupled video signal alternating between a completely
black screen and a completely white screen. Notice the
excursion of the video signal as the screen changes.
DirectDrive Video Amplifier with
Short-to-Battery Protection
_______________________________________________________________________________________
7
Pin Description
PIN
NAME
FUNCTION
1VDD
Positive Power Supply. Bypass VDD with a 1µF capacitor to GND.
2
C1P
Charge-Pump Flying Capacitor Positive Terminal. Connect a 1µF ceramic capacitor from C1P to C1N.
3
CPGND
Charge-Pump Ground. Connect to GND.
4
C1N
Charge-Pump Flying Capacitor Negative Terminal. Connect a 1µF ceramic capacitor from C1P to
C1N.
5
CPVSS
Charge-Pump Negative Power Supply. Bypass CPVSS with a 1µF ceramic capacitor in parallel with a
10nF low ESL capacitor to GND.
6VSS
Negative Power Supply. Connect VSS to CPVSS.
7
OUT
Video Output
8
JACKSENSE
Jack-Sense Input. Connect to the video output connector after the back-termination resistor.
9
GND
Ground
10
IN
Video Input


Similar Part No. - MAX9532_11

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX9532AUB++ MAXIM-MAX9532AUB+ Datasheet
406Kb / 12P
   DirectDrive Video Amplifier with Short-to-Battery Protection
Rev 0; 2/09
MAX9532EVKIT MAXIM-MAX9532EVKIT Datasheet
90Kb / 4P
   Fully Assembled and Tested
Rev 0; 3/09
MAX9532EVKIT++ MAXIM-MAX9532EVKIT+ Datasheet
90Kb / 4P
   Fully Assembled and Tested
Rev 0; 3/09
More results

Similar Description - MAX9532_11

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX9532 MAXIM-MAX9532 Datasheet
406Kb / 12P
   DirectDrive Video Amplifier with Short-to-Battery Protection
Rev 0; 2/09
MAX9503 MAXIM-MAX9503 Datasheet
831Kb / 13P
   DirectDrive Video Amplifier with Reconstruction Filter
Rev 0; 5/05
logo
ON Semiconductor
NIV2161 ONSEMI-NIV2161_V01 Datasheet
264Kb / 9P
   ESD Protection with Automotive Short-to-Battery & Ground Protection
November, 2018 - Rev. 3
NIX1161 ONSEMI-NIX1161 Datasheet
246Kb / 9P
   ESD Protection with Automotive Short-to-Battery Blocking
August, 2020 ??Rev. 6
NIV1241 ONSEMI-NIV1241 Datasheet
230Kb / 8P
   ESD Protection with Automotive Short-to-Battery Blocking
August, 2020 ??Rev. 0
logo
Maxim Integrated Produc...
MAX9505 MAXIM-MAX9505 Datasheet
407Kb / 16P
   DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch
Rev 0; 5/05
logo
Texas Instruments
TPS25940-Q1 TI1-TPS25940-Q1 Datasheet
3Mb / 46P
[Old version datasheet]   18-V eFuse with Integrated Short-to-Battery Protection
TPD3S716-Q1 TI1-TPD3S716-Q1 Datasheet
2Mb / 32P
[Old version datasheet]   Automotive USB 2.0 Interface Protection with Adjustable Current Limit and Short-to-Battery, Short-Circuit Protection
TPS25940-Q1 TI1-TPS25940-Q1_18 Datasheet
3Mb / 50P
[Old version datasheet]   2.7-V to 18-V eFuse with Integrated Short-to-Battery Protection
logo
Maxim Integrated Produc...
MAX9516 MAXIM-MAX9516 Datasheet
308Kb / 15P
   1.8V, Ultra-Low-Power, DirectDrive Video Filter Amplifier with Load Detect
Rev 0; 9/07
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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