ZXFV4089N8TC Diodes Zetex, ZXFV4089N8TC Datasheet

IC AMP DC RESTORATION SO8

ZXFV4089N8TC

Manufacturer Part Number
ZXFV4089N8TC
Description
IC AMP DC RESTORATION SO8
Manufacturer
Diodes Zetex
Datasheet

Specifications of ZXFV4089N8TC

Applications
DC Restoration
Number Of Circuits
1
-3db Bandwidth
210MHz
Slew Rate
400 V/µs
Current - Supply
8mA
Current - Output / Channel
40mA
Voltage - Supply, Single/dual (±)
±4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Single Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (typ)
±5V
Single Supply Voltage (min)
Not RequiredV
Single Supply Voltage (max)
Not RequiredV
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
For Use With
ZXFV4583EV - BOARD EVAL FOR ZXFV4583/ZXFV4089
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ZXFV4089N8TCTR
ZXFV4089
Video amplifier with DC restoration
Description
The ZXFV4089 is a DC restored video
amplifier (black-level clamp) in an 8 pin SOIC
package. It integrates a high performance
video amplifier with a nulling sample and
hold amplifier specially designed to provide
brightness level stability.
The input video signal is AC coupled to the
main amplifier and this AC coupling capacitor
also acts as the holding capacitor for the
sample and hold amplifier. This configuration
reduces
components over traditional solutions.
Typically, during the back-porch interval of an
analog video waveform the sample and hold
amplifier forces the input of the video
amplifier to the reference voltage.
Features
Ordering information
Issue 4 - December 2008
© Diodes Incorporated 2008
Part number
ZXFV4089N8TA
ZXFV4089N8TC
Complete analog video DC level
restoration system
PAL, NTSC, SECAM
Excellent video performance
210 MHz -3 dB bandwidth
400V/ms slewrate
TTL/CMOS logic compatible HOLD input
Pin and function compatible with industry
standard EL4089
Supports various TV systems
0.08% differential gain
0.1° differential phase
30 MHz 0.1 dB bandwidth
both
pin
Reel size
(inches)
13
7
count
Quantity
per reel
2500
500
and
external
marking
Device
4089
4089
1
The video waveform is now referenced to the
new reference voltage for the remainder of the
line-scan interval.
The video amplifier has been optimised for
video applications and as such drives back-
terminated 75
gain and phase errors. The current feedback
architecture allows the bandwidth to remain
fixed over a wide range of gains, and is set by
two external resistors.
The ZXFV4089 is specified for operation at ±5V
and over the -40°C to +85°C temperature range
and is pin compatible with the industry standard
EL4089.
Applications
Black level clamp, providing stable intensity
in video systems such as:
DC restoration of other high frequency
signals
cameras
image capture
video mixing
displays
Diodes Incorporated
Figure 1 Pin connection diagram
A Product Line of
loads with good differential
www.diodes.com
www.zetex.com

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ZXFV4089N8TC Summary of contents

Page 1

... Pin and function compatible with industry standard EL4089 Ordering information Part number Reel size (inches) ZXFV4089N8TA 7 ZXFV4089N8TC 13 Issue 4 - December 2008 © Diodes Incorporated 2008 Diodes Incorporated The video waveform is now referenced to the new reference voltage for the remainder of the line-scan interval. ...

Page 2

Absolute maximum ratings Positive supply voltage V CC Negative supply voltage V EE Input voltage, pins 1,2,3 to GND Differential input voltage 2, pin 1 to pin 2 Output current, pin 7 (continuous, TJ < 110°C) Internal power dissipation Input ...

Page 3

Electrical characteristics -5V Parameter I Positive supply current, holding CCH I Positive supply current, sampling CCS I Negative supply current, holding EEH I Negative supply current, sampling EES Amplifier ...

Page 4

AC electrical characteristics -5V 470V Parameter Amplifier section HOLD = high unless otherwise stated SR Slew rate BW Bandwidth, -3dB -3 BW Bandwidth, -3dB -3 BW ...

Page 5

Typical characteristics Issue 4 - December 2008 © Diodes Incorporated 2008 5 ZXFV4089 www.zetex.com www.diodes.com ...

Page 6

Typical characteristics (cont.) Issue 4 - December 2008 © Diodes Incorporated 2008 6 ZXFV4089 www.zetex.com www.diodes.com ...

Page 7

ZXFV4089 detailed operating notes Introduction This device provides an uncommitted video feed-back amplifier together with a sample-hold system to allow restoration or level-shifting of the input waveform to a controlled DC level. The connection diagram, Figure 1 shows a typical ...

Page 8

Figure 3 shows a portion of a typical video waveform, where the sample pulse is synchronised to fall within the back porch interval. This can for example be achieved using the Zetex ZXFV4583 sync separator to derive the pulse as ...

Page 9

DC level droop In the hold state, a small voltage drift is caused by leakage from the sample-hold circuit and bias current from the main amplifier charging or discharging the coupling capacitor. The drift rate is equal to the bias/leakage ...

Page 10

Attention is drawn to the footnote of the DC electrical characteristics table, regarding input signal amplitude. The video signal is ac coupled into the main amplifier and clamped this the actual voltage seen by the device input ...

Page 11

Package outline - SO8 DIM Inches Min. Max. A 0.053 0.069 A1 0.004 0.010 D 0.189 0.197 H 0.228 0.244 E 0.150 0.157 L 0.016 0.050 Note: Controlling dimensions are in inches. Approximate dimensions are provided in millimeters Issue 4 ...

Page 12

... Life support Diodes Zetex products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A ...

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