SGS Thomson Microelectronics STV1602A Datasheet

SERIALINTERFACE TRANSMISSION DECODER

BUILT-IN AUTOMATICEQUALIZER FOR UP TO 30dB ATTENUATION AT 135MHz (TYPICALLY 300m OF HIGH-GRADE COAXIAL CABLE), PLL CIRCUITFORRECLOCKING,ANDSERIAL-PARALLELCONVERSIONCIRCUIT. THIS SERIAL TRANSMISSION DECODER REQUIRESONLYFEWEXTERNALCOMPONENTS.

OTHERRELATEDIC’s INCLUDE:

.

STV1601A, A SERIAL TRANSMISSION ENCODER (PARALLEL-TO-SERIAL CONVERSION)

.

STV1389AQCOAXIALCABLE DRIVER

STV1602A

STRUCTURE

.

Hybrid IC

APPLICATIONS

SERIALDATA TRANSMISSION DECODER

.

100 to 270Mb/s

APPLICATIONSEXAMPLES

.

Serial data transmission of digital television signals525-625 lines

.

4:2:2 component 270Mb/s(10-bit)

.

4*fscPALcomposite 177Mb/s (10-bit)

.

4*fscNTSC Composite 143Mb/s (10-bit)

FUNCTIONS

.

Cableequalizer (maximumgain : 30dB at 135MHz)

.

PLL for serial clockgeneration

.

Reclocked repeater output (active loop through)

.

Descrambler: modulo-2multiplicationby G(x) = (x

.

Parallel-to-serial conversion

.

Syncmonitor output

.

Eye pattern monitoring

.

Input signal detector

DESCRIPTION

The STV1602Ais a Hybrid IC decoder which convertsserial data comingfroma serialtransmission line into parallel data.

9+x4

+1)(x+1)

(Ceramic Package)

ORDER CODE : STV1602A

PIN CONNECTIONS

GND

AIX

27 26 25 24 23 22 21 20 19

CX

DIX DIY

FV

28 29 30 31 32 33 34 35

ESI

36

37

123456789

ESO

GND

QFS

GND

MON

ADS

DPR

PGA37

AIY

SY

GND

SX

EE

V

QSW

RSE

TN1

EVR

EEVEE

V

SYN

PCK

18 17 16 15 14 13 12 11 10

D9

D0 D1 D2 D3 D4 D5 D6 D7 D8

1601A-01.EPS

December 1992

1/22

STV1602A

PIN DESCRIPTION

Symbol Equivalent Circuit Description I/O

o

N

GND

3SY

4SX

QSW

5

(GND)

30Ω 30Ω

34

V

R3

2kΩ 2kΩ

145Ω

V

EE

GND

1kΩ

36

Reclocked serial data output in differential mode. SX and SY are disabled when TN1 is setHigh. In this case, SX isset High and SY is set Low

H L

1602A-02.EPS

To be connected to GND I

Standard

Min. Typ. Max. Unit

O

-1.6

-2.4

V V

36 FV

1 ESO

5

V

EE

1kΩ 1kΩ

2kΩ

10kΩ

2kΩ

GND

1

V

Adjustment of VCO Free running frequency : V gives the lowest frequency.

EE

level

I

To adjust it, set TN1 High.

1602A-03.EPS

Output of phase comparator

O -3.2 V : must be connected to ESI with the shortest distance

EE

1602A-04.EPS

1602A-01.TBL

2/22

PIN DESCRIPTION(continued)

Symbol Equivalent Circuit Description I/O

o

N

STV1602A

Standard

Min. Typ. Max. Unit

9

D9

to

18

to

D0

19 PCK

21 EVR

26 AIX

25 AIY

GND

V

R3

V

GND

26

25

V

EE

600Ω 600Ω 300Ω

210Ω 210Ω

300

Ω

10kΩ 10kΩ

3kΩ 4kΩ4kΩ

Parallel data output

H L

21

Parallel clock output (rising

9

edge at data center)

18

H L

Data output reference

O

-0.8

-1.6

O

-0.8

-1.6

O -1.2 V

potential

1602A-05.EPS

Equalizer differential input I -2.0 V

V V

1602A-06.EPS

GND

2kΩ

28 NC To beleft open I -4.6 V

1kΩ

29

28

29 CX

16kΩ 2kΩ 2kΩ

Equalizer detectoroutput; Input signal :

V

EE

1602A-07.EPS

absent present

O

-2.4

-2.0

V V

1602A-02.TBL

3/22

STV1602A

PIN DESCRIPTION(continued)

Symbol Equivalent Circuit Description I/O

o

N

GND

1kΩ

31

Equalizer monitoroutput. Connect 75Ω resistor between MON-GND. Observe using a 50Ω input oscilloscope at the 75Ω coaxial cable.

1602A-08.EPS

31 MON

V

GND

500Ω

R3

500Ω500Ω

V

EE

Standard

Min. Typ. Max. Unit

O

15 mV

(pp)

32 ADS

33 DIX

34 DIY

V

GND

33

34

V

EE

2kΩ2kΩ

32

?

V

R2

Serial data input selection High : Digital input DIX/DIY

I

Low :Equalizer input 

V

R3

2k

Ω

EE

500Ω 500Ω

1602A-09.EPS

L

Serial data digital differential

H

V

R1

V

R3

input

Selected when ADS is High.

H L

500Ω

1602A-10.EPS

-0.5

-5VV

I

-1.0

-1.6VV

1602A-03.TBL

4/22

PIN DESCRIPTION(continued)

Symbol Equivalent Circuit Description I/O

o

N

GND

STV1602A

Standard

Min. Typ. Max. Unit

37 ESI

6TN1

GND

V

37

PLL error signalinput : must

i be connected to ESO with the shortest distance

2kΩ

V

EE

20kΩ

2kΩ

1602A-11.EPS

Serial data input activation

I High : Input disabled (VCO

-3.2 V

-1.0 free running condition). Low :Input enabled.

-4.0VV

During switch-on phase, by

6

4kΩ12kΩ

EE

temporarily hold High for quick start-up

1602A-12.EPS

20 SYN

GND

4kΩ

V

CC

State changesat each TRS

O Sync word 3FFH 000H 000H

20

2kΩ

V

EE

2kΩ

1602A-13.EPS

H L

-1.0

-4.0VV

1602A-04.TBL

5/22

STV1602A

PIN DESCRIPTION(continued)

Symbol Equivalent Circuit Description I/O

o

N

GND

1kΩ 1kΩ

Standard

Min. Typ. Max. Unit

35 DPR

22 RSE

Serial data detection output.

O When there is an input signal at theinput side selected through ADS, this pin goes High. At no signal, it goes Low.

35

H L

-1.0

-4.0VV

i.e.

- present : High

- absent : Low

6kΩ

V

EE

2kΩ

10kΩ

GND

22

1602A-14.EPS

Selects VCO frequency range H : High range

140 to 270MHz

I

L : Low range

100 to 145MHz H L

-0.4

-4.0VV

7

V

23

8V 2

24

GND GND

27 30

6/22

EE

10kΩ10kΩ

V

EE

1602A-15.EPS

-5V supply I/O buffer, PLL

-5.2 -5.0 -4.8 V

equalizer

-5V Supply Logic part

-5.2 -5.0 -4.8 V

1602A-05.TBL

BLOCK DIAGRAM

STV1602A

GND

AIX AIY

QFS

CX

MON

EVR SYN PCK

21 20 19

2

INPUT

SELECT

Parallel clock

TIMING

GENERATOR

SYNC

DETECTOR

24

27

30

AUTOMATIC

26 25

EQUALIZER

28 29 31

ECL OUT

REFERENCE

VOLTAGE

CABLE

33 34 371363532 6

DIX DIY ADS TN1 DPR FV ESO ESI

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 18 17 16 15 14 13 12 11 10 9

10-BITLATCH

30-BIT SHIFT REGISTER

94

X + X + 1 DESCRAMBLER

DATA

RELAY

DATA

DETECTOR

Serial clock

EDGE

DETECTOR

NRZI TO NRZ

PHASE

DETECTOR

Reclocked serial data

VCO

V

7

EE

V

23

EE

V

8

EE

4

SX

3

SY

22

RSE

1602A-16.EPS

ABSOLUTEMAXIMUMRATINGS (T

=25oC)

A

Symbol Parameter Value Unit

Supply Voltage -6 V Input Voltage VEEto 0 V Output Current -30 mA Operating Temperature 0 to 65 Storage Temperature -50 to 125 Allowable Power Dissipation 2.0 W

I

T

V

OUT

oper

T

P

EE

IN

stg

D

RECOMMENDED OPERATINGCONDITIONS

Symbol Parameter Value Unit

V

EE

T

oper

Supply Voltage -4.8 to -5.2 V Operating Temperature 0 To 65

o

C

o

C

1602A-06.TBL

C

o

1602A-07.TBL

7/22