GB4571 datasheet(2/5 Pages) GENNUM

Part #	GB4571

Description	Video Buffer with Precision Strobed DC Restore

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Manufacturer	GENNUM [Gennum Corporation]

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Supply Voltage

±V

S

± 4.5

±5.0

± 13.2

V

+ Supply Current

I+

-

10

15

mA

- Supply Current

I-

-

10

15

mA

Small Signal B.W.

B.W.

±0.1 dB after insertion loss,

80

-

MHz

Phase Delay

ø

D

at 3.58 MHz and 4.43 MHz

-2.85

-3.0

-3.15

deg

Differential Gain

∂g

at 3.58 MHz and 4.43 MHz

-

0.01

0.03

%

Differential Phase

∂p

at 3.58 MHz and 4.43 MHz

-

0.01

0.05

deg

Input Voltage

V

IN

V

EE

+3

-

V

CC

-3

V

Input Resistance

R

IN

25

-

k

Ω

Input Capacitance

C

IN

-

2.0

-

pF

Output Resistance

R

OUT

ƒ= 0 to 1 MHz

-

8.6

10

Ω

ƒ= 100 MHz

-

20

40

Ω

Insertion Loss

I.L.

ƒ= 100 kHz

-

0.03

0.05

dB

Power Supply Rejection Ratio

PSRR

ƒ= 1 kHz

50

-

dB

ƒ= 10 MHz

20

-

dB

PP Signal / RMS Noise

S/N

V

SIG

=1 Vp-p

75

-

dB

Strobe Pulse Width

t

PWL

Active low

2.0

2.5

-

µs

Accuracy

V

IN

= 0.5V to 2Vp-p,

-

±1

± 2mV

STROBE pulses at H rate

Recovery Time

Scan rate 15.7kHz & 2

µs strobe pulses

0.5V offset

-

1

3

ms

0.1V offset

-

190

600

µs

Clamping Distortion

Distortion amplitude

-

± 1mV

Distortion duration (amp. within 0.1 mV)

-

3

µs

Clamp Voltage Range

VCLAMP

V

IN

= 1 Vp-p

V

EE

+3

-

V

CC

-4.5

V

Input Logic High

V

IH

1.8

-

V

Input Logic Low

V

IL

-

0.8

V

Strobe Input Current

I

IL

,

I

IH

--

20

µA

ABSOLUTE MAXIMUM RATINGS

PARAMETER

VALUE/UNITS

Supply Voltage

± 13.5 V

Operating Temperature Range

0

°C ≤ T

A ≤

70

°C

Storage Temperature Range

-65

°C ≤ T

S

≤150°C

Lead Temperature (soldering, 10 seconds)

260

°C

Differential Video Input Voltage

±5 V

Strobe Input Voltage

-V

S ≤

V

STROBE ≤

+V

S

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER

SUPPLIES

ELECTRICAL CHARACTERISTICS V

S = ± 5 V, TA = 0° to 70°C, RL = 10kΩ, CL = 10 pF, unless otherwise shown.

CAUTION

ELECTROSTATIC

SENSITIVE DEVICES

DO NOT OPEN PACKAGES OR HANDLE

EXCEPT AT A STATIC-FREE WORKSTATION

(flattened response)

V

IN

=100 mV p-p

SIGNAL

PATH

STROBE

V

CLAMP

NOTE:

1. VA or B = +1 Vp-p output taken from OUTPUT

2 . VC = +1 Vp-p output taken from VA or VB

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