ELANT EL4453CS, EL4453CN Datasheet

EL4453C

Video Fader

EL4453C January 1995 Rev A

Features

# Complete two-input fader with

output amplifierÐuses no extra
components

# 80 MHz bandwidth
# Fast fade control speed
# Operates on

g

5V tog15V

supplies

l

#

60 dB attenuation@5 MHz

Applications

# Mixing two inputs
# Picture-in-picture
# Text overlay onto video
# General gain control

Ordering Information

Part No. Temp. Range Pkg. Outline

EL4453CNb40§Ctoa85§C 14-Pin P-DIP MDP0031

EL4453CSb40§Ctoa85§C 14-Lead SOIC MDP0027

General Description

The EL4453C is a complete fader subsystem. It variably blends
two inputs together for such applications as video picture-in­picture effects.

The EL4453C operates on
analog differential input range of

g

5V tog15V supplies and has an

g

2V. AC characteristics do

not change appreciably over the supply range.

The circuit has an operational temperature of

b

40§Ctoa85§C

and is packaged in 14-pin P-DIP and SO-14.

The EL4453C is fabricated with Elantec’s proprietary comple­mentary bipolar process which gives excellent signal symmetry
and is free from latch up.

Connection Diagram

Ý

4453– 1

Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a ‘‘controlled document’’. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.

©

1995 Elantec, Inc.

EL4453C

Video Fader

Absolute Maximum Ratings

a

V
V

S

V

IN

DV

Important Note:
All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually
performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test
equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore T

Test Level Test Procedure

Open-Loop DC Electrical Characteristics

Power Supplies atg5V, SumaeSumbe0, T

Parameter Description Min Typ Max

V

DIFF

V

CM

V

OS

V

FADE

V

FADE

I

B

I

OS

F

T

Positive Supply Voltage 16.5V
Vato VbSupply Voltage 33V
Voltage at any Input or Feedback Vato V
Difference between Pairs

IN

of Inputs or Feedback 6V

I 100% production tested and QA sample tested per QA test plan QCX0002.

II 100% production tested at T

III QA sample tested per QA test plan QCX0002.
IV Parameter is guaranteed (but not tested) by Design and Characterization Data.

V Parameter is typical value at T

T

MAX

and T

per QA test plan QCX0002.

MIN

VINA, VINB, or Sum Differential Input VoltageÐ Clipping 1.8 2.0 I V

Common-Mode Range (All Inputs; V

A or B Input Offset Voltage 25 I mV

, 100% Extrapolated Voltage for 100% Gain for VINA 0.9 1.05 1.2 I V

, 0% Extrapolated Voltage for 0% Gain for VINA

Input Bias Current (All Inputs) with all V

Input Offset Current between VINAaand VINAb, 0.2 4 I mA

Baand VINBb, Fadeaand Fadeb,

V

IN

and Sumaand Sum

VINA Signal Feedthrough, V

b

FADE

e

T

25§C

A

I
I

b

P
T
T

e

25§C and QA sample tested at T

A

e

25§C for information purposes only.

A

e

25§C

A

e

0) V

DIFF

e

0 9 20 I mA

IN

eb

1.5V

Current into any Input, or Feedback Pin 4 mA

IN

Output Current 30 mA

OUT

Maximum Power Dissipation See Curves

D

Operating Temperature Range

A

Storage Temperature Range

S

e

25§C,

A

b

b

60§Ctoa150§C

e

e

T

J

C

Level

0.2% Nonlinearity 0.7 V V

e

g

5V

S

e

g

15V

V

S

g

2.5g2.8 I V

g

12.5g12.8 I V

b

1.2b1.15b0.9 I V

b

100b60 I dB

40§Ctoa85§C

TA.

Test

Units

NL A or B Input Nonlinearity, VINbetweena1V andb1V, VINAorVINB 0.2 0.5 I %

Sum Input 0.5 V %

RIN, Signal Input Resistance, A, B, or Sum Input 230 V kX

RIN, Fade Input Resistance, Fade Input 120 V kX

CMRR Common-Mode Rejection Ratio, VINAorVINB7080IdB

PSRR Power Supply Rejection Ratio 50 70 I dB

E

G

V

O

I

SC

I

S

Gain Error, V

Output Voltage Swing V

e

0, V

(V

IN

e

1.5V, VINAorVINB

FADE

Varied) V

REF

Sum Input

e

g

S

e

g

S

5V
15V

Output Short-Circuit Current 40 85 I mA

e

Supply Current, V

g

15V 17 21 I mA

S

b

2

b

4

g

2.5g2.8 I V

g

12.5g12.8 I V

a

2I %

a

4I %

TDis 4.3in

2

EL4453C

Video Fader

Closed-Loop AC Electrical Characteristics

Power supplies atg12V, T

Parameter Description Min Typ Max

BW,b3dB

BW,g0.1 dB 0.1 dB Flatness Bandwidth, VINAorVINB 9 V MHz

Peaking Frequency Response Peaking 1.0 V dB

BW, Fade

SR Slew Rate, V

V

N

F

T

dG Differential Gain Error, V

di Differential Phase Error, V

b

b

Input-Referred Noise Voltage Density 160 V nV/Hz

Feedthrough of Faded-Out Channel, Fe3.58 MHz

e

25§C, R

A

3 dB Small-Signal Bandwidth, VINAorVINB 80 V MHz

3 dB Small-Signal Bandwidth, Fade Input 80 V MHz

OUT

e

500X,C

L

betweenb2V anda2V TBD 380 I V/ms

OFFSET

OFFSET

e

15 pF, V

L

from 0 tog0.714V, Fade at 100%

from 0 tog0.71V, Fade at 100%

e

FADE

1.5V, SumaeSumbe0

V

AorVINB 0.05 V %

IN

Sum Input 0.35 V %

V

AorVINB 0.05 V (§)

IN

Sum Input 0.1 V (

Test

Level

b

63 V dB

Units

Test Circuit

)

§

TDis 2.5in

Note: For typical performance curves Sum
otherwise noted.

ae

Sum

be

0, R

e

F

3

0X,R

G

e %

,V

FADE

ea

1.5V, and C

4453– 2

L

e

15 pF, unless

EL4453C

Video Fader

Typical Performance Curves

Frequency Response

Frequency Response for
Various Loads, V

b

3 dB Bandwidth and Peaking

vs Supply Voltage

e

S

Frequency Response vs Gain

4453– 3

g

5V

4453– 6

Frequency Response for
Various Loads, V

b

3 dB Bandwidth and Peaking

vs Die Temperature

e

S

g

15V

4453– 4

4453– 7

4453– 9

4453– 10

4