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ZXFV4089N8TA PDF даташит

Спецификация ZXFV4089N8TA изготовлена ​​​​«Zetex Semiconductors» и имеет функцию, называемую «VIDEO AMPLIFIER WITH DC RESTORATION».

Детали детали

Номер произв ZXFV4089N8TA
Описание VIDEO AMPLIFIER WITH DC RESTORATION
Производители Zetex Semiconductors
логотип Zetex Semiconductors логотип 

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ZXFV4089N8TA Даташит, Описание, Даташиты
VIDEO AMPLIFIER WITH DC RESTORATION
ZXFV4089
DEVICE DESCRIPTION
The ZXFV4089 is a DC restoring circuit and
low-distortion video amplifier. It is specially designed
to provide brightness level stability as a ‘black-level
clamp’ in video systems with very low distortion and
low power consumption.
A high fidelity video amplifier is combined with a
sample-hold switch circuit using an external coupling
capacitor to provide level-shifting of the video output
such that a time-gated sample of the waveform is set to
be equal to an external reference voltage (usually zero
voltage). A buffered TTL/CMOS logic input signal
controls the switch.
The gain is set externally by two resistors.
In a typical application, the sample-hold circuit is gated
on during part of the back-porch interval of an analog
video waveform. Then the video waveform is
stabilised for the remainder of the line-scan interval.
FEATURES AND BENEFITS
Various TV systems, PAL, NTSC, SECAM
Buffered output using high quality video amplifier
Gain is set using two external resistors
On chip sample/hold capacitor
300 MHz bandwidth
0.02% differential gain
0.02° differential phase
+/-5V supply operation
8 mA supply current
Pin and function compatible with industry
standard part
ORDERING INFORMATION
Part Number
Container
ZXFV4089N8TA
Reel 7
ZXFV4089N8TC
Reel 13
Increment
500
2500
CONNECTION DIAGRAM
APPLICATIONS
Black Level Clamp, providing stable intensity in
video systems such as
cameras
image capture
video mixing
displays
DC restoration of other high frequency signals
ADVANCED INFORMATION ISSUE D - SEPTEMBER 2002
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ZXFV4089N8TA Даташит, Описание, Даташиты
ZXFV4089
ABSOLUTE MAXIMUM RATINGS
Positive Supply voltage VCC to GND
Negative Supply Voltage VEE to GND
Input voltage, pins 1,2,3 to GND
Output current, pin 7
Current into Vin and HOLD, pins 2 & 4
Operating Temperature Range
Operating Ambient Junction temperature TJMAX
-0.5V to +5.5V
-5.5V to +0.5V
VEE -0.5V to VCC +0.5V
60mA
5mA
-40ЊC to 85ЊC Storage -65ЊC to +150ЊC
150ЊC**
**The thermal resistance from the semiconductor die to ambient is typically 120ЊC/W when the SO16 package is
mounted on a PCB in free air. The power dissipation of the device when loaded must be designed to keep the
device junction temperature below TJMAX.
*During power-up and power-down, these voltage ratings require that signals be applied only when the power
supply is connected.
ELECTRICAL CHARACTERISTICS
VCC = 5V, VEE = -5V, RF and RG = 1k, RLOAD = 1k, Tamb = 25ЊC unless otherwise stated.
PARAMETER
CONDITIONS
DC characteristics
VCC Supply current, holding
VCC Supply current, sampling
VEE Supply current, holding
VEE Supply current, sampling
Amplifier section
HOLD = HIGH
HOLD = LOW
HOLD = HIGH
HOLD = LOW
Input offset voltage
HOLD = HIGH
+ input bias current
HOLD = HIGH
– input bias current
HOLD = HIGH
Transimpedance
HOLD = HIGH
+ input resistance
HOLD = HIGH
Open loop gain
HOLD = HIGH
Output voltage swing
HOLD = HIGH
Output drive current
HOLD = HIGH
Positive Power Supply Rejection Ratio
HOLD = HIGH
Negative Power Supply Rejection Ratio
HOLD = HIGH
Common mode input voltage range
HOLD = HIGH
Amplifier output voltage swing
HOLD = HIGH
Restore section
Composite Input Offset Voltage, from VREF HOLD = LOW
to amplifier output
VREF input bias current
Input restore current available, pin 2
HOLD = LOW
HOLD = LOW
P/C MIN TYP MAX UNIT
P 8 10 mA
P 8.5 11 mA
P 8 10 mA
P 8.5 11 mA
P 1 10 mV
P 5 10 µA
P 5 10 µA
P 500 1800
K
P 1.5 2
M
P 48 61
dB
P ±2.5 ±3.0
V
P 40
mA
P 49 57
dB
P 51 58
dB
C ±3 V
P ±2.5 ±3.5
V
P 3 7 mV
P 3 12 µA
P 180 300
µA
TEST - P = 100% production tested, C = characterised
ADVANCED INFORMATION ISSUE D - SEPTEMBER 2002
2









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ZXFV4089N8TA Даташит, Описание, Даташиты
ZXFV4089
ELECTRICAL CHARACTERISTICS
VCC = 5V, VEE = -5V, RF and RG = 1k, RLOAD = 1k, Tamb = 25ЊC unless otherwise stated.
PARAMETER
VREF input voltage range
Positive Power Supply Rejection Ratio
Negative Power Supply Rejection Ratio
Logic input HIGH VHmin
Logic input LOW VLmax
Logic input Low current, IIL
Logic input High current, IIH
AC characteristics
Amplifier section
Slew Rate
Bandwidth, -3dB
Bandwidth, ±0.1dB
Differential Gain, NTSC
Differential Phase, NTSC
Restore section
Slew rate
Time to enable Hold
Time to disable Hold
CONDITIONS
P/C MIN TYP MAX UNIT
HOLD = LOW
C ±2 V
HOLD = LOW
P 60 90
dB
HOLD = LOW
P 60 90
dB
P 2V
P 0.8
V
HOLD = LOW
P 40 100 µA
HOLD = HIGH
P 12 µA
Rf = Rg = 1k ohms, RLOAD = 150 ohms, CLOAD = 10 pF
HOLD = HIGH, 2V pk-pk
HOLD = HIGH
HOLD = HIGH
HOLD = HIGH, f = 3.58 MHz,
280mV pk-pk, DC = -714 to
+714 mV
HOLD = HIGH, f = 3.58 MHz,
280mV pk-pk, DC = -714 to
+714 mV
C
C
C
C
C
400
300
100
0.02
0.02
V/µs
MHz
MHz
%
deg
HOLD = LOW
C 25 V/µs
C 25 ns
C 40 ns
TEST - P = 100% production tested, C = characterised
1. The logic conditions for DC characteristics are: logic LOW = 0.8V max, logic HIGH = 2V min.
ADVANCED INFORMATION ISSUE D - SEPTEMBER 2002
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Номер в каталогеОписаниеПроизводители
ZXFV4089N8TAVIDEO AMPLIFIER WITH DC RESTORATIONZetex Semiconductors
Zetex Semiconductors
ZXFV4089N8TCVIDEO AMPLIFIER WITH DC RESTORATIONZetex Semiconductors
Zetex Semiconductors

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