Page 1
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
Page 2
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
11 12 13 14 15 16 17 18 19 20
S
T
SW-LP
V
5
I LP
OUT
7
2
6
V
CC
A
SW-SP
1234567891 0
SP
OUT
I
SWREC-SP
SW1-SP SW1-LP SW2-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
Page 3
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 600µV PP@ 4MHz on H1LP
OH
Output Resistance @ ENVC Sinewave 600µV PP@ 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 100µ V
SENS2 Sensitivity 100µ V
to 600µ VPP@ SP input pins 0.1 1 V
PP
to 600µ VPP@ LP input pins 4 4.8 V
PP
nV
√ Hz
pA
√ Hz
5726A-04.TBL
3/6
Page 4
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 µ A
ISWINL SWIN Input Leakage Current 0V atSWIN input -0.2 µ A
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 µ A
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 µ A
ICSYL Leakage Current 0V at CSYN Pin, Sampling off -50 -16 -5 µ A
VSWST SWS Input Threshold Voltage value at RECIN/SWS Pin 3 3.5 V
ISWSH SWS Input Leakage Current 5V atSWS Input 130 µ A
ISWSL SWS Input Leakage Current 0V atSWS Input -20 0 20 µ A
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 µ A
Current
Current
0.5V at CAGC Pin,
= 300mVPP@ 4MHz
V
IN
-165 µ A
Delay Signal appears on YCPB 1.6 ms
22nF between Hi/Vi 1 µ s
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 µ s
Signal disappears on Pin I
OUT
PP
5726A-05.TBL
4/6
Page 5
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
IL P
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
22µ F
CRCC
22nF
CRCY
22nF
L1 22µ H
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
Page 6
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