SGS Thomson Microelectronics STV5742 Datasheet
2-HEAD PLAYBACKAND RECORD AMPLIFIERFOR VCR
.
ONE 5V POWERSUPPLY
.
PLAYBACK/RECORD MODE SELECTION
THROUGHA LOGICINPUT
.
SO16PACKAGE
.
NO ADJUSTMENT FOR LUMINANCE RECORDING
PLAYBACK MODE
.
LOW NOISE AND WIDE BAND AMPLIFIERS
FOR2 HEADS
.
AUTOMATIC OFFSET CANCELLATION
BETWEENTHE 2 SELECTEDHEADS
.
ONE PLAYBACKOUTPUT
.
ONE OUTPUT FOR AUTOMATIC VIDEO
TRACKING
RECORDMODE
.
RECORD AGC AMPLIFIER SAMPLED BY
SYNCHROSIGNAL
.
RECORDING SIGNAL LEVEL ADJUSTABLE
BYEXTERNALRESISTOR
SO16 Narrow
(Plastic Package)
ORDER CODE :
STV5742
STV5742
PIN CONNECTIONS
February 1997
I
OUT
V1
V2
C1
H2
GND1
H1
C2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
CAGCREC
RECIN
TRIV
CSYN
GND2
PBOUT
V
CC
9
SWIN
5742-01.EPS
1/7
STV5742
BLOCKDIAGRAM
CAGCREC
RECIN
14
TRIV
CSYN
GND2
PBOUT
CC
V
SWIN
9101112131516
S
T
V
5
7
4
V
CC
12345678
I
OUT
V1
V2
C1
H2
H1
GND1
2
C2
ABSOLUTE MAXIMUMRATINGS
Symbol Parameter Value Unit
V
CC
T
T
oper
Power Supply Voltage 6 V
Junction Temperature 150
j
Operating Temperature 0, +70
5742-02.EPS
o
C
o
C
5742-01.TBL
THERMAL DATA
Symbol Parameter Value Unit
R
th (j-a)
Junction-ambient Thermal Resistance Max. 100
RECOMMENDEDOPERATING CHARACTERISTICS
Symbol Parameter Min. Typ. Max. Unit
V
CC
CAGC Capacitance on PinCAGCREC 4.7 nF
RECADJ Record Biasing Resistor 10 33 kΩ
2/7
Power Supply 4.75 5 5.25 V
o
C/W
5742-02.TBL
5742-03.TB L
STV5742
ELECTRICAL CHARACTERISTICS
PlaybackMode
= 5V,no loadon PinPBOUT, 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 19 29 39 mA
on inputs 58 60 62 dB
PP
Input grounded via I
BW = 10kHz
Pin @ 600kHz,
OUT
0.45 0.6
IN EquivalentInput CurrentNoise Input open @ 6MHz, BW = 10kHz 2.5
CRT1 Crosstalk Sinewave @ 4MHz, 0.4mV
PP
-35 -30 dB
RPBSW Playback Switch onResistor @ 6MHz 1 5 10 Ω
BWLCF Attenuation @ 100KHz Reference level @ 600kHz -3 0 1 dB
BWHCF Attenuation @ 8MHz Reference level @ 4MHz -3 -1 0 dB
C
Z
Input Capacitance @ 6MHz, 22nF between 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 Levelon PinPBOUT 1.6 2 2.4 V
DVDC Head Switch Offset -0.1 0 0.1 V
SHPB1 2nd Harmonic Sinewave @4MHz, 0.4mV
PP
-45 -40 dB
TRIV FUNCTION
TRIV0 Output Level (1) No input signal 0 0.3 1 V
TRIV1 Output Level (2) Sinewave @4MHz, 100mV
TRIV4 Output Level (3) Sinewave @4MHz, 400mV
TRIV6 Output Level (4) Sinewave @4MHz, 600mV
@ PBOUT 1.3 V
PP
@ PBOUT 2.5 3.1 3.5 V
PP
@ PBOUT 3.2 3.7 4.2 V
PP
TRIV1-TRIV0 0.5 1 - V
nV
√Hz
pA
√Hz
RecordMode (VCC=5V, Recadj= 12kΩ, SWR = 5V,CAGCREC = 470pF,RRCY =2.2kΩ,
RRCC = 8.2kΩ, Load10µH//1kΩ for each simulated head)
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 -40 -36 dB
IHA2M 2nd Harmonic
BWRECL Attenuationat 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 3.5 5.5 - κΩ
RSAT Output Stage Resistance ∆I = 10mA 5 10 50 Ω
IRN
IRP
SWITCHING LEVELS
VSWINH SWIN Input Threshold Selects head H1, 0 to 5V 1.5 2 2.5 V
VSWINL SWIN Input Threshold Selects headH2, 5 to 0V 1.5 2 2.5 V
ISWINH SWIN Input Leakage Current 5V at SWIN input 5 18 50 µA
ISWINL SWIN Input Leakage Current 0V at SWIN input -50 -25 -5 µA
VSWRCH SWRC Input Threshold Selects recordmode, 0 to 5V 3.2 3.4 3.8 V
Current Supply 55 85 115 mA
OUT
AGC Capacitor downloading
Current
AGC Capacitor uploading
Current
@ 4MHz 34 36 38 mA
PP
VRCY = 400mV
AGC adjusted for IAH1 = 40mA
= 300mVPP±3dB @ f = 4MHz -0.2 0 +0.2 dB
IN
@ 4MHz,
PP
PP
4.5V at CAGC Pin 165 µA
0.5V at CAGC Pin,
= 300mVPP@ 4MHz
V
IN
28 38 47.5 mA
-34 -32 dB
-165 µA
PP
5742-04.TBL
3/7
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