Intersil Corporation CD22402 Datasheet

Semiconductor

/

OBSOLETE PRODUCT

CD22402

[ /Title
(CD2240

2)
Subject

(Sync
Genera­tor for
TV
Applica­tionsand
Video
Process-

NO RECOMMENDED REPLACEMENT

Call Central Applications 1-800-442-7747

May 1999

or email: [e-mail]

Features

• Interlaced Composite Sync Output

• Automatic Genlock Capability

• Crystal Oscillator Operation

• 525 or 625 Line Operation

• Vertical Reset Option

• Wide Power Supply Operating Voltage . . . . .4V to 15V

Applications

• Cameras

• Monitors and Displays

•CATV

• Teletext

• Video Games

• Sync Restorer

• Video Service Instruments

Part Number Information

TEMP.

PART NUMBER

CD22402D -55 to 125 24 Ld SBDIP D24.6
CD22402E -40 to 85 24 Ld PDIP E24.6

RANGE (oC) PACKAGE

PKG.

NO.

Sync Generator for TV Applications

and Video Processing Systems

Description

The Harris CD22402 (Note) is a CMOS LSI sync generator that
produces all the timing signals required to drive a fully 2-to-1
interlaced 525-line 30-frame/second, or 625-line 25-frame/sec­ond TV camera or video processing system. A complete sync
waveform is produced which begins each field with six serrated
vertical sync pulses, preceded and followed by six half-width
double frequency equalizing pulses. The sync output is gated by
the master clock to preserve horizontal phase continuity during
the vertical interval.

The CD22402 can be operated either in “genlock” mode, in
which it is synchronized with a reference sync pulse train from
another TV camera, or in “stand-alone” mode, in which it is syn­chronized with a local on-chip crystal oscillator (the crystal and
two passive components are off chip). Also, the circuit can
sense the presence or absence of a reference sync pulse train
and automatically select the “genlock” or “stand-alone” mode.

A frame sync pulse is produced at the beginning of every odd
field. The vertical counter can be reset to either the first equalizing
pulse or the first vertical sync pulse of the vertical interval. The
interlaced sync provided by the CD22402 differs from RS-170 by
having slightly narrower sync and equalizing pulses. The clock
frequency of 32 times horizontal rate allows for approximately 4µs
horizontal pulse widths and 2µs equalizing pulses. Otherwise
operation can be phase locked to a color sub-carrier for a full
interlaced operating system.

The CD22402 is operable with a single supply over a voltage
range of 4V to 15V.

Pinout

CD22402 (PDIP, SBDIP)

TOP VIEW

DELA Y, GENLOCK TO CRYSTAL OSCILLATOR

CRYSTAL OSCILLATOR FEEDBACK T AP

HORIZONTAL DRIVE OUTPUT

MIXED SYNC OUTPUT

GENLOCK OSCILLATOR CAPACITOR CONNECTION

MIXED BEAM BLANKING OUTPUT

VERTICAL COUNTER RESET TO FIRST EQU ALIZING PULSE

VERTICAL DRIVE OUTPUT

VERTICAL RESET TO FIRST VERTICAL SYNC PULSE

HORIZONTAL CLAMP OUTPUT

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright

© Harris Corporation 1999

1

2

V

3

SS

4

5

6

7

8

9

10

11

12

V

SS

8-40

24

RESISTOR CONNECTION FOR GENLOCK OSCILLATOR

23

MASTER FREQUENCY INPUT

22

R-C CONNECTION FOR GENLOCK OSCILLATOR

21

DELA Y, GENLOCK TO CRYSTAL OSCILLATOR

20

GENLOCK INPUT (COMPOSITE SYNC)

19

V

DD

18

525 LINE TO 625 LINE OPERATION SWITCH

17

VERTICAL PROCESSING BLANKING OUTPUT

16

SHORT VERTICAL DRIVE OUTPUT

15

FRAME SYNC OUTPUT (ODD FIELD)

14

HORIZONTAL PR OCESSING BLANKING OUTPUT

13

MIXED PROCESSING BLANKING OUTPUT

File Number 1686.5

CD22402

Pin Descriptions

PIN NO. SYMBOL DESCRIPTION

1 XRC Delay, Genlock to Crystal Oscillator. Resistor, diode and capacitor connection for delay that automatically

turns on thecrystal oscillator whenthe genlock input is removed.When the signal on Terminal 1 is high the crys­tal oscillator is inhibited. Typical values for R and C are 1MΩ and 0.001µF. For operation as a crystal controlled
stand alone sync generator without genlock, Terminal 1 should be hardwired to VSS.

2 XTP Crystal Oscillator Feedback Tap. Feedback connection (tap) forcrystal oscillator. When a crystal (shunted by

a1MΩ resistor) is connected between this terminal and Terminal 23, and a 100pF capacitor is connected from
this terminal to VSS, the sync generator creates its own master frequency. Fora 525-line, 30-frame/second ras­ter,the crystal frequency is 504.000kHz (Note 1);and fora 625-line, 25-frame/second raster,the crystal frequen-

cy is 500.000kHz (Note 1).
3VSSNegative Power Supply Voltage. This terminal must be hardwired to Terminal 12 (VSS).
4HDHorizontal Drive Output
5MSMixed Sync Output
6CCapacitor Connection for R-C Genlock Oscillator
7 MBB Mixed Beam Blanking Output
8 VRE Vertical Counter Resetto First Equalizing Pulse. Alow level signal on thisterminal resets thevertical counter

to the first equalizing pulse of a field. When not in use this terminal should be connected to VDD.
9VDVertical Drive Output

10 VRV Vertical Counter Reset to First Vertical Sync Pulse. A low level signal on this terminal resets the sync gen-

erator to the first vertical sync pulse of a field. For genlock operation, Terminal 10 is used as a resistor and ca-

pacitor connection for an integrator networkthat detects vertical syncpulses in a master syncwaveform to which

the sync generator is to be genlocked. R is 22kΩ, and C is 0.001µF. When not in use this terminal should be

connected to VDD.

11 HC Horizontal Clamp Output
12 V
13 MPB Mixed Processing Blanking Output
14 HPB Horizontal Processing Blanking Output
15 FS2 Frame Sync Output (Odd Field). A pulse coincidingwith the first equalizing pulse is produced atthe beginning

16 SVD Short Vertical Drive Output
17 VPB Vertical Processing Blanking Output
18 SW Operation Switch for 525-Line or 625-Line Raster. A high level signal on Terminal 18 causes the sync gener-

19 V
20 GEN Genlock Input Composite Sync. A negative going reference mixed sync waveform applied to Terminal 20 dis-

21 XR Delay, Genlock to Crystal Oscillator, Resistor and Diode Connection for Delay,Genlock to Crystal Oscil-

22 RC Resistor and Capacitor Connection for Genlock Oscillator. If the genlock oscillator is not used this terminal

23 XIN Master Frequency Input.
24 R Resistor Connection for Genlock Oscillator.

NOTE: 32 times horizontal frequency.

Negative Power Supply Voltage

SS

of every odd field.

ator to generate a 625-line raster. An internal pulldown resistor is connected to Terminal 18, so in the absence

of an applied input to this terminal, a 525-line raster is produced.

Positive Power Supply Voltage. VDD can be any voltage between +4 and +15 relative to VSS.

DD

ables the crystal oscillator and locks the R-C genlock oscillator to the horizontal pulses of the reference sync

waveform. Vertical sync detection is achieved by an R-C integrator connected from Terminal 20 to Terminal 10

(vertical reset to first vertical sync pulse). An internal pull-up resistor is connected to Terminal 20 so that in the

absence of an applied input the crystal oscillator is enabled and the R-C genlock oscillator is disabled.

lator. Automatically turns on the crystal oscillator when the input to Terminal 20 is removed.

should be connected to VSS. C should be 100pF, and R should be a 10kΩ potentiometer.

8-41

Block Diagram

10

VRV

CD22402

CD22402 MONOCHROME TV SYNC GENERATOR WITH AUTOMATIC GENLOCK

R

RC C

24 22 6 8 18

VRE SW

GEN

XR

XRC

XIN

XTP

= PINS 3 AND 12

V

SS

= PIN 19

V

DD

R-C

GENLOCK

OSCILLATOR

20

21

1

23

2

AUTOMATIC

GENLOCK
CONTROL

CRYSTAL

OSCILLATOR

14 11 4 5 13 7 15 16 9 17

HPB HC HD MS MPB MBB FS2 SVD VD VPB

HORIZONTAL

COUNTER

÷16

÷2

LINE

DECODER

COMPOSITE

DECODER

VERTICAL
COUNTER

÷525/625

FIELD

DECODER

FRAME

SYNC

DECODER

8-42

CD22402

Absolute Maximum Ratings Thermal Information

DC Supply Voltage (Referenced to VSS Terminal). . . . . . . . . . . 15V

Input Voltage Range, All Inputs (Notes 2, 3) . . . . . . VSS≤ VI≤ V

DC Input Current, Any One Input (Note 2) . . . . . . . . . . . . . . ±10mA

Operating Conditions

Temperature Range

CD22402D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC

CD22402E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTES:

1. θJA is measured with the component mounted on an evaluation PC board in free air.

2. To prevent damage to theinput protection circuit,input signals should never be greater than VDDnor less thanVSS. Input currentsmust
not exceed 10mA even when the power is off.

3. A connection must be provided at every input terminal. All unused inputs must be connected to VDD or VSS, whichever is appropriate.

Thermal Resistance (Typical, Note 1) θJA (oC/W) θJC (oC/W)

DD

SBDIP Package. . . . . . . . . . . . . . . . . . 50 10

PDIP Package. . . . . . . . . . . . . . . . . . . 50 N/A

Maximum Junction Temperature (SBDIP Package) . . . . . . . . 175oC

Maximum Junction Temperature (PDIP Package) . . . . . . . . 150oC

Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

(SOIC - Lead Tips Only)

Electrical Specifications Values at -55

Values at -40oC, 25oC, 85oC Apply to E Package

P ARAMETER SYMBOL

DC ELECTRICAL SPECIFICATIONS

Quiescent Device Current IDD (Max) - 5 ----0.50.75 1 mA

Output Low (Sink) Current IOL (Min) 0.5 5 100 96 66 56 80 160 - µA

Output High (Source) Cur­rent

Output Voltage Low Level VOL (Max) - 5 0.15 0.15 0.15 0.15 - - 0.15 V

Output Voltage High Level VOH (Min) - 5 4.85 4.85 4.85 4.85 4.85 - - V

Input Low Voltage VIL (Max) 0.5, 4.5 5 1.5 1.5 1.4 1.4 - 2.25 1.5 V

Input High Voltage VIH (Min) 0.5, 4.5 5 3.6 3.6 3.5 3.5 3.5 2.25 - V

Input Current IIN (Max) - - -----10-pA

Refer to the CD4000B Series data book 250.5 for general operating and application considerations.

IOH (Min) 4.5 5 -100 -96 -66 -56 -80 -160 - µA

o

C, 25oC, 125oC Apply to D Package

TEST

CONDITIONS

V

V

O

(V)

-10----1.522.5mA

-15----345mA

5 5 1200 1155 787 672 960 1920 - µA

0.5 10 248 239 164 140 200 400 - µA
10 10 3000 2868 1968 1680 2400 4800 - µA

0 5 -1200 -1155 -787 -672 -960 -1920 - µA

9.5 10 -248 -239 -164 -140 -200 -400 - µA

0 10 -3000 -2868 -1968 -1680 -2400 -4800 - µA

- 10 0.15 0.15 0.15 0.15 - - 0.15 V

- 10 9.85 9.85 9.85 9.85 9.85 - - V

1, 9 10 3 3 2.9 2.9 - 4.5 3 V

1, 9 10 7.1 7.1 7 7 7 4.5 - V

DD

(V) MIN TYP MAX

o

-55

C -40oC85oC 125oC

25oC

UNITS

8-43