Datasheet STV5726A Datasheet (SGS Thomson Microelectronics)

4-HEAD PLAYBACKAND RECORD AMPLIFIERFOR VCR

.

ONE 5V POWERSUPPLY

.

PLAYBACK/RECORD MODE SELECTION
THROUGHA LOGIC INPUT

.

SO20PACKAGE

.

NO ADJUSTMENT FOR LUMINANCE RE­CORDING

PLAYBACK MODE

.

LOW NOISE AND WIDE BAND AMPLIFIERS
FOR4 HEADS

.

AUTOMATIC OFFSET CANCELLATION BE­TWEENTHE2 SELECTEDHEADS

.

ONE PLAYBACKOUTPUT

.

ONE OUTPUT FOR AUTOMATIC VIDEO
TRACKING

.

SP/LPENVELOPECOMPARATOR

.

SHORT-CIRCUIT SWITCHES ON UNUSED
HEADS

RECORDMODE

.

RECORD AGC AMPLIFIER SAMPLED BY
SYNCHROSIGNAL

.

RECORDING SIGNAL LEVEL ADJUSTABLE
BYEXTERNALRESISTOR

.

SHORT-CIRCUIT SWITCHES ON UNUSED
HEADS

SO20

(PlasticPackage)

ORDER CODE :

STV5726A

STV5726A

PIN CONNECTIONS

February 1997

I

OUT

V1 SP
V2 SP

H1 SP
H2 SP

H2 LP
H1 LP

V2 LP

V1 LP

SP

GND1

1
2
3

4
5

6
7
8

9
10

20
19
18

17
16

15
14
13

12
11

CAGCREC

RECIN/SWS

TRIV

CSYN
GND2

YCPB/SWR

V

CC

SWIN

ENVC

I

LP

OUT

5726A-01.EPS

1/6

STV5726A

BLOCKDIAGRAM

CAGCREC

CSYNC

RECIN/SWS

AGC

I LP

OUT

SW-M

V

CC

TRIV

CSYNC

C

IN OUT

FF

CSYN

GND2

YCPB/SWR

LP

CC

V

SWIN

ENVC

OUT

I

11121314151617181920

S
T

SW-LP

V
5

I LP

OUT

7
2
6

V

CC

A

SW-SP

12345678910

SP

OUT

I

SWREC-SP

SW1-SP SW1-LPSW2-LPSW2-SP

V1 SP

V2 SP

60dB 60dB 60dB 60dB

H1 SP

H2 SP

GND1

H2 LP

H1 LP

SWREC-LP

V2 LP

V1 LP

ABSOLUTE MAXIMUMRATINGS

Symbol Parameter Value Unit

V

CC

T

T

oper

Power Supply Voltage 6 V
Junction Temperature 150

j

Operating Temperature 0, +70

THERMAL DATA

Symbol Parameter Value Unit

R

th (j-a)

Junction-ambient Thermal Resistance Max. 75

RECOMMENDEDOPERATING CHARACTERISTICS

Symbol Parameter Min. Typ. Max. Unit

V

CC

CAGC Capacitance on Pin CAGCREC 4.7 nF

RECADJ Record Biasing Resistor 10 33 kΩ

Power Supply 4.75 5 5.25 V

o

C/W

5726A-02.EPS

o

C

o

C

5726A-01.TBL

5726A-02.TBL

5726A-03.TBL

2/6

STV5726A

ELECTRICAL CHARACTERISTICS

PlaybackMode

= 5V,no load on PinYCPB, Recadj = 12kΩ)

(V

CC

=25oC, unless otherwise specified)

(T

amb

Symbol Parameter Test Conditions Min. Typ. Max. Unit

PLAYBACK AMPLIFIER

I

CC1

GPB Playback Gain Sinewave 600kHz,0.4mV

EN Equivalent Voltage Noise

Supply Current 42 52 62 mA

on inputs 55 57 59 dB

PP

Input grounded via I
BW = 10kHz

Pin @ 600kHz,

OUT

0.6

IN Equivalent Input Current Input open @ 6MHz,BW = 10kHz 2

CRT1 Crosstalk (LP → SP) Sinewave @4MHz, 0.4mV
CRT2 Crosstalk (SP → LP) Sinewave @4MHz, 0.4mV

PP
PP

-45 -40 dB

-41 -35 dB
RPBSW Playback Switch on Resistor @ 6MHz 5 10 15 Ω
BWLCF Attenuation @ 100KHz Reference level @ 600kHz -3 -2 1 dB
BWHCF Attenuation @ 8MHz Reference level @ 4MHz -3 -1 0 dB

C
Z

Input Capacitance @ 6MHz, 22nFbetween Vi/Hi 40 50 60 pF

IN

Input Impedance @ 6MHz 300 450 600 Ω

IN

ZCPB Output Resistance DC 5 24 50 Ω

VDCPB1 DC Level onPin YCPB 1.6 2 2.4 V

DVDC Head Switch Offset -0.2 0 0.2 V

SHPB1 2nd Harmonic Sinewave @ 4MHz, 0.4mV

PP

-45 -40 dB

RCST Off-resistance on unusedchannel SW-S high 10 15 20 Ω

TRIV FUNCTION

TRIV0 Output Level (1) No input signal 0 0.1 1 V
TRIV1 Output Level (2) Sinewave @4MHz, 100mV
TRIV4 Output Level (3) Sinewave @4MHz, 400mV
TRIV6 Output Level (4) Sinewave @4MHz, 600mV

@ YCPB 1.3 V

PP

@ YCPB 2.5 3.1 3.5 V

PP

@ YCPB 3.15 3.65 4.15 V

PP

SP/LP ENVELOPE DETECTOR

R

R

Output Resistance @ ENVC Sinewave 600µVPP@ 4MHz on H1LP

OH

Output Resistance @ ENVC Sinewave 600µVPP@ 4MHz on H2SP

OL

CSYN signal applied

CSYN signal applied

22 kΩ

2kΩ

VENVCH Output Level 4 4.8 5 V

VENVCL Output Level 0 0.1 1 V

SENS1 Sensitivity 100µV
SENS2 Sensitivity 100µV

to 600µVPP@ SP input pins 0.1 1 V

PP

to 600µVPP@ LP input pins 4 4.8 V

PP

nV

√Hz

pA

√Hz

5726A-04.TBL

3/6

STV5726A

ELECTRICAL CHARACTERISTICS

RecordMode

=5V, Recadj = 12kΩ, SWR = 5V, CAGCREC= 470pF,RRCY =2.2kΩ,

(V

CC

=25oC, unless otherwise specified (continued)

(T

amb

RRCC = 8.2kΩ, Load 10µH//1kΩ for each simulatedhead)

Symbol Parameter Test Conditions Min. Typ. Max. Unit

RECORD AMPLIFIER

I

CC2

IHA0 DC Currentthrough I
IHA1 Fundamental VRCY = 300mV

IHA2 2nd Harmonic VRCY = 300mVPP@ 4MHz -45 -38 dB
BWRECL Attenuation at 100kHz Reference level @ 600kHz, AGC locked -3 0 1 dB
BWRECH Attenuation at 8MHz Reference level @ 4MHz, AGC locked -2 -0.5 1 dB

DVLREC Record AGC Sensitivity V

RIOUT Output Resistance ∆V = 5V 800 Ω

RSAT Output StageResistance ∆I = 10mA Ω

IRN AGC Capacitor downloading

IRP AGC Capacitor uploading

SWITCHING LEVELS

VSWINH SWIN Input Voltage Selects head H2LP 4.75 5 V

VSWINL SWIN Input Voltage Selects head H2SP 0 0.25 V
VSWIN2 SWIN Input Voltage Selects head H1LP 2.75 4.25 V
VSWIN1 SWIN Input Voltage Selects head H1SP 0.75 2.25 V

ISWINH SWIN Input Leakage Current 5V atSWIN input 0.5 µA

ISWINL SWIN Input Leakage Current 0V atSWIN input -0.2 µA
VSWRCH SWRC Input Threshold Selects record mode, 0 to 5V 3.2 3.4 3.8 V
VSWRCL SWRC Input Threshold Selects playbackmode, 5 to 0V 3.1 3.35 3.8 V

ISWRCH SWRC Input Leakage Current 5V atSWRC input 2 5 8 mA

ISWRCL SWRC Input Leakage Current 0V at SWRC input -20 0 20 µA

t

ON

t1 Delay from playbackto record :

t2 Delay from recordto playback :

t3 Delay from playbackto record :

t4 Delay from recordto playback :

VCSYH CSYN Input Threshold Sampling on,0 to 5V 2.0 2.7 3.2 V

VCSYL CSYN Input Threshold Sampling off,5 to 0V 2.0 2.6 3.1 V

ICSYH Leakage Current 5V at CSYN Pin, Sampling on -10 0 10 µA

ICSYL Leakage Current 0V at CSYN Pin, Sampling off -50 -16 -5 µA

VSWST SWS Input Threshold Voltage value at RECIN/SWS Pin 3 3.5 V

ISWSH SWS Input Leakage Current 5V atSWS Input 130 µA

ISWSL SWS Input Leakage Current 0V atSWS Input -20 0 20 µA

Current Supply 70 85 100 mA

OUT

@ 4MHz 20 23 26 mA

PP

= 300mVPP±3dB @f = 4MHz -1 0 +1 dB

IN

21 27 34 mA

4.5V at CAGC Pin 160 µA

Current

Current

0.5V at CAGC Pin,
= 300mVPP@ 4MHz

V

IN

-165 µA

Delay Signal appears on YCPB 1.6 ms

22nF between Hi/Vi 1 µs

Signal disappears on Pin YCPB

1.9 ms

Signal appears on Pin YCPB

VRCY = 300mVPP@ 4MHz 2 ms

Signal appears on Pin I

OUT

10 µs

Signal disappears on Pin I

OUT

PP

5726A-05.TBL

4/6

APPLICATIONDIAGRAM

C4

22nF

R2
1kΩ

I

SP

OUT

V1 SP

H2 SP

H2 LP

H1 SP

CH1S

22nF

CH2S

22nF

CH2L

22nF

CH1L

22nF

H1 LP

V2 SP

H1 SP

H2 SP

GND1

H2 LP

H1 LP

V2 LP

V1 LP

SW-SP

1

CSYNC

V

2

SW1-SP

3

SW2-SP

4

5

60dB

60dB

SWREC-SP

CC

AGC

SW-M

ILP

OUT

IN

C

FF

OUT

CSYNC

6

7

8

9

SW2-LP

60dB

60dB

SWREC-LP

V

CC

LP

I

OUT

10 11

SW1-LP

SW-LP

STV5726A

CAGCREC

20

19

RECIN/SWS

TRIV

18

CSYN

17

GND2

16

YCPB/SWR

15

V

14

SWIN

13

ENVC

12

I

OUT

CC

22nF

LP

C1

R1

1kΩ

CAGC
22nF

RADJ
12k

C3

22nF

Ω

1N4148

RRCC

8.2kΩ

RRCY

2.2kΩ

1N4148

RSWM

8.2kΩ

RSWH

22kΩ

C2
22µF

CRCC

22nF

CRCY

22nF

L1 22µH

STV5726A

SWS

CREC

YREC

TRIV

CSYN

SWR

YCPB

SWM

SWH

ENVC

V

CC

5726A-03.EPS

SWITCHTABLE

SW-R SW-M SW-S SW-H Channel

L

L

L

H

L

H

H

L

H

L

H

Note : 1. The recording current can be set different for each of the four heads. To perform it the ENVC output iseither at low level or high

impedance according to the selected head or mode. Then two external resistors with adequate value have to be connected
respectively between the ENVC and TRIV and SWM and TRIV, playing so that on the equivalent value of theRADJ resistor.

L 2-SP

H 1-SP

L 1-LP

H 2-LP

L 2-SP

H 1-SP

L 1-LP

H 2-LP

L

H High Impedance (1)

L

H 0V (1)

SW1-SP
SW2-SP

SP OFF ON OFF ON ON OFF

LP ON OFF ON OFF OFF ON

SW1-LP
SW2-LP

OFF OFF

OFF ON

ON OFF

SW-SP SW-LP SWREC-SP SWREC-LP ENVC (SPLP)

ON ON OFF OFF

High IF LP > SP

Low IF LP < SP

0V (1)

High Impedance (1)

5/6

5726A-06.TBL

STV5726A

PACKAGE MECHANICAL DATA

20 PINS - PLASTICMICROPACKAGE (SO)

Dimensions

Min. Typ. Max. Min. Typ. Max.

A 2.65 0.104
a1 0.1 0.3 0.004 0.012
a2 2.45 0.096

b 0.35 0.49 0.014 0.019
b1 0.23 0.32 0.009 0.013

C 0.5 0.020
c1 45

D 12.6 13.0 0.496 0.512

E 10 10.65 0.394 0.419

e 1.27 0.050
e3 11.43 0.450

F 7.4 7.6 0.291 0.299

L 0.5 1.27 0.020 0.050

M 0.75 0.030

S8

Millimeters Inches

o

(typ.)

o

(Max.)

PM-SO20.EPS

SO20.TBL

Informationfurnishedis believed to be accurate and reliable.However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequencesof use of suchinformation nor for any infringement of patents or other rights of third parties which may result
fromits use. No licenceis granted by implicationor otherwiseunder anypatent orpatent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
informationpreviouslysupplied. SGS-THOMSON Microelectronicsproductsare not authorized for use as critical components in life
support devices or systems without expresswritten approval of SGS-THOMSONMicroelectronics.

1997 SGS-THOMSON Microelectronics - AllRights Reserved



Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a licenseunder the Philips

2

C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to

I

Australia- Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco

The Netherlands- Singapore - Spain - Sweden - Switzerland- Taiwan - Thailand - United Kingdom - U.S.A.

2

the I

C Standard Specifications as defined by Philips.

SGS-THOMSON Microelectronics GROUP OF COMPANIES

6/6