EL4581C 데이터 시트보기 (PDF) - Elantec -> Intersil

부품명

상세내역

제조사

EL4581C

Sync Separator, 50% Slice, S-H, Filter

Elantec -> Intersil 

EL4581C

Sync Separator 50% Slice S-H Filter

Dynamic Characteristics

VDD e 5V IV pk-pk video TA e 25 C CL e 15 pF IOH e b1 6 mA IOL e 1 6 mA Signal voltages are peak to peak

Parameter

Description

Temp

Min

Typ

Max

Test

Level

Vertical Sync Width tVS

(Note 3)

25 C

190

230

300

I

Burst Back Porch Width tB

(Note 3)

25 C

25

35

45

I

Vertical Sync Default Delay tVSD

25 C

40

55

70

I

Filter Attenuation

FIN e 3 4 MHz (Note 4)

25 C

24

V

Composite Sync Prop Delay

VINb Composite Sync

(Note 3)

25 C

260

400

I

Input Dynamic Range

p-p NTSC Signal

(Note 5)

25 C

05

2

I

Slice Level

Input Voltage e 1VP-P

25 C

40% 50% 60%

I

(Note 6)

Full

40% 50% 60%

IV

Note 3 C S Vertical and Burst outputs are all active low b VOH e 2 4V VOL e 0 8V

Note 4 Attenuation is a function of Rset (PIN6)

Note 5 Typical min is 0 3 VP-P

Note 6 Refers to threshold level of sync tip to back porch amplitude

Units

ms

ms

ms

dB

ns

V

Pin Descriptions

Pin No

Pin Name

Function

1

Composite Sync Out

Composite sync pulse output Sync pulses start on a falling edge and end on a rising edge

2

Composite Video in

AC coupled composite video input Sync tip must be at the lowest potential (Positive

picture phase)

3

Vertical Sync Out

Vertical sync pulse output The falling edge of Vert Sync is the start of the vertical period

4

GND

Supply ground

5

Burst Back Porch Output Burst Back porch output Low during burst portion of composite video

6

RSET

An external resistor to ground sets all internal timing 681k 1% resistor will provide correct

timing for NTSC signals

7

Odd Even Output

Odd Even field output Low during odd fields high during even fields Transitions occur at

start of Vert Sync pulse

8

VDD 5V

Note RSET must be a 1% resistor

Positive supply (5V)

3

Share Link: