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STV5728
4-HEAD VIDEO AND 2-HEADS HIFI AUDIO PLAYBACK AND RECORD AMPLIFIER FOR VCR
PLAYBACK MODE LOW NOISE AND WIDE BAND AMPLIFIERS FOR 4 VIDEO HEADS AUTOMATIC OFFSET CANCELLATION BETWEEN THE 2 SELECTED HEADS ONE PLAYBACK OUTPUT WITH AGC ONE PLAYBACK OUTPUT (60dB CONSTANT GAIN) ONE OUTPUT FOR AUTOMATIC VIDEO TRACKING SP/LP ENVELOPE COMPARATOR OUTPUT LOW NOISE AMPLIFIERS FOR 2 HIFI HEADS HIFI OUTPUT GAIN (70dB) RECORD MODE TRANSCONDUCTANCE AMPLIFIER VIDEO AGC AMPLIFIER FOR HIFI
. . . . . . . . . . . . . .
ONE 5V POWER SUPPLY PLAYBACK/RECORD MODE SELECTION THROUGH A LOGIC INPUT PINNING COMPATIBLE WITH STV5725 AND STV5727 SO28 PACKAGE
voltage between the two selected heads is automatically cancelled after 32 switching head cycles. A constant output signal will be available on Pin YPB thanks to an AGC function (Automatic Gain Control). The time constant of the AGC is determined by the capacitor value connected to CAGC Pin. For Automatic Tracking, a signal which is a function of the selected input signal amplitude is present on Pin TRIV. For Trick Mode, a signal resulting from the comparison of the input signal amplitude is available on ENVC Pin.
SO28 (Plastic Package) ORDER CODE : STV5728
FOR
PIN CONNECTIONS
H1SP
1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15
SWR SWIN VCC RECIN CPB GND YPB TRIV
ENV
DESCRIPTION STV5728 is intended for 4 heads VCR applications with HIFI. It includes all the electrical functions necessaryto achieveplay-back and record processing. Record or PlaybackMode can be selected through SWR Pin. SWH allows to select the video head input (H1SP or H2SP, H1LP or H2LP), while SWM will select the mode SP or LP. The SWFMH will select the FM input heads in Playbackand will mute the HIFI record amplifier in Record Mode. Playback Mode (Video) Signals applied on H1SP, H2SP, H1LP and H2LP input pins will be amplified by 60dB voltage gain. IOUTSP and IOUTLP Pins are AC short-circuited to ground. The input signal can be selected through SWH and SWM inputs and the corresponding output signal will be available on Pin CPB. The offset
May 1997
GNDSP H2SP IOUTSP CCOM IOUTLP H2LP GNDLP H1LP CCOM2 IOUTFM H1FM GNDFM H2FM
CAGC
FMRIN FMPB
5728-01.EPS
SWFMH
VCCFM
1/11
STV5728
BLOCK DIAGRAM
REC PB H2LP H1LP H1SP H2SP 60dB
4
H1SP
1
60dB
28
SWR 22k SWH 8.2k SWM +5V Rrcy YREC VCC
2
27
3
H2SP S P HEADS
Record Amplifica tor
26
25 24
Rrcc CREC CPB
5
CCOM
6
LP HEADS 60dB
7
Playba ck AGC
23 22 R ADJ YPB
H2LP
8
60dB
9
21 Detector 20 Record Re ference Current (FM) CAGC
19
TRIV (ATR) ENV Envelope Comp
H1LP
10
CCOM2 HIFI HEADS 11 70dB H1FM 12 Record AGC 17
18
FMREC Rfmin FMPB
13 PB REC MUTE H2FM 14 70dB H1FM H2FM OFF ON
16 +5V
SWFMH
15
VCCFM
5728-02.EPS
STV5728
FUNCTIONAL DESCRIPTION Record Mode (Video) Thecurrent input applied on RECINPin is amplified througha transconductanceamplifier. Special care has been taken to speed up commutation from Playback to Record and from Record to Playback, avoiding spikes through the loads (the rotary transformers). The recording current level in LP mode is 0.9 time the value of SP one. Playback Mode (FM HIFI) Signals applied on H1FM and H2FM input Pins will be amplified by 70dB voltage gain. IOUTFM Pin is
2/11
AC short-circuited to ground by CCOM1. The input signal can be selected through SWFMH input and the correspondingoutput signal will be available on Pin FMPB. Record Mode (HIFI) The current input applied on FMRIN Pin is amplified through an Automatic Gain Control amplifier. The recording level can be adjusted thanks to the RADJ resistance connected to TRIV Pin. Special care has beentaken to speedup commutationfromPlayback to Record and from Record to Playback, avoiding spikes through the loads (the rotary transformers).
STV5728
ABSOLUTE MAXIMUM RATINGS
Symbol V CC Tj Toper Power Supply Voltage Junction Temperature Operating Temperature Parameter Value 6 150 0, +70 Unit
o o
C C
THERMAL DATA
Rth (j-a) Junction-ambient Thermal Resistance (IC solded on the PC board) Max. 75
o
C/W
RECOMMENDED OPERATING CHARACTERISTICS
Symbol V CC VCCFM CAGC CCOM CCOM1 RADJ Power Supply FM HIFI Power Supply AGC Time Constant Decoupling Capacitor Decoupling Capacitor Record Current Adjustment Resistor Parameter Min. 4.75 4.75 4.7 4.7 4.7 15 Typ. 5 5 22 470 470 22 33 Max. 5.25 5.25 Unit V V nF nF nF k
5728-03.TBL 5728-03.EPS
Figure 1 : FM Record Current Amplifier ; Record Current Adjustment Curve
70
60 Current (mAPP)
Recording Level
50
40
30
20 10 20 30 RADJ Value (k)
SET-UP (1) (2) (3)
40
A certain ratio must be kept between RADJ and RFMIN to insure maximum performances with an average FM recording input voltage around 170mVPP. Some examples are given in the following tables. If the average input voltage is higher (or lower), the RFMRIN value must be increased (decreased) proportionnaly.
RADJ 15k 22k 33k
RFMRIN 1k 1.5k 2k
3/11
5728-02.TBL
Symbol
Parameter
Value
Unit
5728-01.TBL
V
STV5728
ELECTRICAL CHARACTERISTICS (Tamb = 25oC, unless otherwise specified) Playback Mode VCC = 5V, no load on YPB and CPB Pins, RADJ = 22k, after 32 SWH (SWitching Head) cycles.
Symbol PLAYBACK AMPLIFIER ICC1 GPB EN IN CRT1 CRT2 CRT3 RPBSW BWLCF BWHCF CIN RIN ZCPB VDCPB1 DVDC SHPB1 ZYPB VDCPB2 BWLCF2 BWHCF2 VLPB SHPB2 IPB+ IPBDVLP Supply Current Playback Gain Equivalent Voltage Noise Equivalent Input Current Crosstalk Between SP Channels (or LP Channels) Crosstalk Crosstalk Between SP1 and LP2 Channels (or SP2 to LP1 Channels) Playback Switch on Resistor Attenuation @ 100kHz Attenuation @ 8MHz Input Capacitance Input Resistance Output Resistance DC Level on Pin CPB Head Switch Offset 2nd Harmonic Output Impedance @ YPB DC Level @ YPB Attenuation @ 100kHz Attenuation @ 8MHz Output Amplitude Second Harmonic CAGC Sink Current CAGC Source Current AGC Sensitivity Sinewave 600kHz, 0.4mVPP on inputs Input grounded via IOUT Pin @ 600kHz, BW = 10kHz Input open @ 6MHz, BW = 10kHz Sinewave @ 4MHz, 0.4mV PP Sinewave @ 600kHz, 0.4mVPP Sinewave @ 6MHz, 0.4mV PP @ 6MHz Reference level @ 600kHz Reference level @ 4MHz @ 6MHz @ 6MHz DC 0.8 -1 -3 22 500 5 1.35 -200 40 58 0.5 1.4 48 60 0.6 2 -41 -50 -60 2.5 0 1 27 730 14 1.75 0 -43 14 1.45 0 -1 200 -44 100 -100 0 -50 18 1 0 32 950 50 2.15 200 -37 53 62 0.7 2.6 -39 mA dB nV Hz pA Hz dB dB dB dB dB pF V mV dB Parameter Test Conditions Min. Typ. Max. Unit
Sinuswave @ 4MHz, 0.4mVPP 5 1.15 -1 -3 160 50 -150 Sinuswave @ 4MHz, 0.2mVPP on input, -5dB and +6dB SP mode, Vcpb = 0mVPP @ 4MHz LP mode, Vcpb = 600mVPP @ 4MHz SP mode, Vcpb = 100mVPP @ 4MHz SP mode, Vcpb = 200mVPP @ 4MHz LP mode, Vcpb = 100mVPP @ 4MHz LP mode, Vcpb = 200mVPP @ 4MHz SP mode, Vcpb = 300mVPP @ 4MHz SP mode, Vcpb = 600mVPP @ 4MHz Reference : SP mode, Vcpb = 100mVPP @ 4MHz Reference : SP mode, Vcpb = 100mVPP @ 4MHz -1
PLAYBACK AGC FUNCTION 50 1.85 V 1 dB 1 dB 250 mVPP -40 dB 150 A -50 A 1 dB
Reference @ 4MHz, PB AGC locked Reference @ 4MHz, PB AGC locked Sinuswave @ 4MHz, 0.4mVPP on input Sinuswave @ 4MHz, 0.4mVPP on input
TRIV FUNCTION VTRIV0 VTRIV4 VTRIV5 VTRIV6 VTRIV7 VTRIV8 VTRIV9 VTRIV10 FTRIV1 FTRIV2 Output Level (1) Output Level (4) Output Level (5) Output Level (6) Output Level (7) Output Level (8) Output Level (9) Output Level (10) Response Lower Frequency, Attenuation @ 1MHz Response Higher Frequency, Attenuation @ 8MHz 0.05 0.28 4.1 1.33 2.27 1.8 3.11 2.95 3.85 -6 -1 0.7 V V V V V V V V dB dB
5728-04.TBL
1.4
2.2
4/11
STV5728
ELECTRICAL CHARACTERISTICS (Tamb = 25oC, unless otherwise specified) (continued) Playback Mode (continued) VCC = 5V, no load on YPB and CPB Pins, RADJ = 22k
Symbol R OH R OL VENVCH VENVCL SENS1 SENS2 ICCFM1 GPBFM ENFM INFM CRTFM1 RPBFMSW BWFMLCF BWFMHCF CINFM RINFM ZCPBFM VDCPBFM DVDCFM SHPBFM1 VMAXFM Parameter Output Resistance @ ENVC Output Resistance @ ENVC Output Level Output Level Sensibility Sensibility Supply Current Playback Gain Equivalent Voltage Noise Equivalent Input Current Crosstalk Playback Switch on Resistor Attenuation @ 1MHz Attenuation @ 2MHz Input Capacitance Input Resistance Output Resistance DC Level on Pin YFMPB Head Switch Offset 2nd Harmonic Maximum Output Voltage Test Conditions Sinewave 600VPP @ 4 MHz on H2SP Sinewave 600VPP @ 4 MHz on H1LP Min. 0.65 0.65 4 0 4 24 66 0.4 2.4 28 70 0.5 3.5 -45 2.4 0 0 35 550 24 1.8 0 -45 32 74 0.6 5 -40 5 1 1 1000 50 2.5 200 -40 Typ. Max. 1.6 1.6 2.8 2.8 5 1 1 Unit k k V V V V mA dB nV Hz pA Hz dB dB dB pF V mV dB VPP SP/LP ENVELOPE DETECTOR
100VPP to 600VPP @ LP input pins 100VPP to 600VPP @ SP input pins
PLAYBACK AMPLIFIER (HIFI) Sinewave 1.6MHz, 0.2mVPP on inputs Input grounded via IOUT Pin @ 600kHz, BW = 10kHz Input open @ 1.6MHz, BW = 10kHz Sinewave @ 1.6MHz, 0.2mVPP @ 6MHz Reference level @ 1.6MHz Reference level @ 1.6MHz @ 1.6MHz @ 1.6MHz DC
1.1 -1 -1 100 5 1.4 -200 2
5/11
5728-05.TBL
Sinuswave @ 1.6MHz, 0.2mVPP Sinuswave @ 1.6MHz, 2nd harmonic < -35dB
STV5728
ELECTRICAL CHARACTERISTICS (Tamb = 25oC, unless otherwise specified) (continued) Record Mode VCC = 5V, VCCFM = 5V, RADJ = 22k, SWR = 5V, CCOM = 470nF, CCOM1 = 470nF, RRCY = 2.2k, RRCC = 8.2k, RFMIN = 1.5k, SWFMH = 5V, SWM = 0V (SP Mode). Load 10H//1k for each simulated head. Damping network of 1nF/620 connected between each record output and Ground.
Symbol Parameter Test Conditions Min. Typ. Max. Unit RECORD AMPLIFIER (Video) ICC2 IHA0 IHA2 IMAX BWRECL BWRECH TRSP TRLP RSAT TRR RIOUT VTRIVR Current Supply DC Current through IOUTSP or IOUTLP 2nd Harmonic Maximum Current Attenuation at 100kHz Attenuation at 8MHz Transconductance SP Transconductance LP Output Stage Resistance Transconductance Ratio Impedance on IOUTSP (IOUTLP) Voltage on TRIV Pin VRCY = 300mVPP @ 4MHz @ 4MHz, 2nd harmonic < 35dB Reference level @ 600kHz Reference level @ 4MHz VIN = 300mVPP @ 4MHz VIN = 300mVPP @ 4MHz, SWM = 5V @ 4MHz TRSP / TRLP V = 1V 35 -1 -2 66 60 5 0.8 40 2 0 0 70 64 11 1 100 2.4 1 1 74 68 20 1.2 300 2.8 60 27 74 42 -49 86 54 -40 mA mA dB mAPP dB dB mA/V mA/V dB k V
RECORD AMPLIFIER (FM HIFI) ICCFM2 IHFM0 IHFM1 IHFM2 BWRECL BWFMRH DVLRFM RSATFM ATT1 RIOUTFM IREC+ IRECCurrent Supply DC Current through IOUT Fundamental 2nd Harmonic Attenuation at 1MHz Attenuation at 2MHz record AGC Sensibility Output Stage Resistance mute Impedance on IOUTFM CAGC Sink Current CAGC Source Current VFMREC = 170mVPP @ 1.6MHz VRCY = 170mVPP @ 1.6MHz Reference level @ 1.6MHz, AGC locked Reference level @ 1.6MHz, AGC locked VIN = 170mVPP 3dB @ 1.6MHz I = 10mA VIN = 300mVPP @ F = 4MHz V = 1V 48 26 32 -52 -1 -1 -1 7 40 6 50 -150 76 49 37 -46 0 0 0 15 60 36 100 -100 72 150 -50 104 72 42 -40 1 1 1 50 mA mA mAPP dB dB dB dB dB k A A
5728-06.TBL
6/11
STV5728
ELECTRICAL CHARACTERISTICS (Tamb = 25oC, unless otherwise specified) (continued) Record Mode (continued) VCC = 5V, VCCFM = 5V, RADJ = 22k, SWR = 5V, CCOM = 470nF, CCOM1 = 470nF, RRCY = 2.2k, RRCC = 8.2k, RFMIN = 1.5k, SWFMH = 5V, SWM = 0V (SP Mode). Load 10H//1k for each simulated head. Damping network of 1nF/620 connected between each record output and Ground.
Symbol Parameter Test Conditions Min. Typ. Max. Unit SWITCHING LEVELS (Video) VSWIN1 VSWIN2 VSWIN3 VSWIN4 ISWIN1 ISWIN2 ISWIN3 ISWIN4 VSWRH VSWRL ISWRH ISWRL TON T1 T2 T3 SWIN Input Threshold SWIN Input Threshold SWIN Input Threshold SWIN Input Threshold VSWIN = 0V VSWIN = 1.5V VSWIN = 3.5V VSWIN = 5V SWR Input Threshold SWR Input Threshold VSWR = 5V VSWR = 0V Switching Delay Delay from Playback to Record : Signal Disappears on Pin CPB Delay from Record to Playback : Signal Appears on Pin CPB Delay from Playback to Record : Signal Appears on Pin IOUTSP or IOUTLP Delay from Record to Playback : Signal Disappears on Pin IOUTSP or IOUTLP Selects head H2SP Selects head H1SP Selects head H1LP Selects head H2LP Input current Input current Input current Input current Selects record mode Selects playback mode Input current Input current Signal appears on CPB 1 800 20 0 1 2.8 4.6 -1 0.1 0.1 0.1 3.5 0 0 -10 0.1 -5 -0.5 0.4 0.4 0.5 0.4 2.2 4 5 -0.1 2 2 2 5 1.5 5 -0.5 500 V V V V A A A A V V A A ns s s s s
T4
1
SWITCHING LEVELS (Video) VFMH VFML TONFM T1FM T2FM T3FM T4FM ISWFMHH ISWFMHL SWFMH Input Threshold SWFMH Input Threshold Switching Delay Delay from Playback to Record : Signal Disappears on Pin FMPB Delay from Record to Playback : Signal Appears on Pin FMPB Delay from Playback to Record : Signal Appears on Pin IOUTFM Delay from Record to Playback : Signal Disappears on Pin IOUTFM VSWFMR = 5V VSWFMH = 0V Input current Input current 0 -10 Signal appears on FMPB 0 400 20 1 0.1 -5 5 -0.5 3.5 0 5 1.5 500 5 V V ns s s s s A A
5728-07.TBL
7/11
STV5728
INPUTS/OUTPUTS EQUIVALENT INTERNAL DIAGRAMS Figure 1
VCC H1SP/H2SP/ H1LP/H2LP/ H1FM/H2FM pins 1/3/7/9/12/14 VCC 54k
Figure 2
IOUTSP / IOUTLP / IOUTFM Pins 4/6/11 VCC CCOM/CCOM2 Pins 5/10 66
13.5V
5728-05.EPS
VCC
Figure 3
VCC
Figure 4
VCC SWFMH/SWR Pins 16/28
5728-07.EPS
4k
VCCFM 15
Figure 5
VCC VCC
Figure 6
VCC
VCC FMPB/YPB/CP B Pins 17/22/24
5728-09.EPS 5728-10.EPS
FMRIN/RECIN Pins 18/25
8/11
5728-08.EPS
5728-06.EPS
STV5728
INPUTS/OUTPUTS EQUIVALENT INTERNAL DIAGRAMS (continued) Figure 7
VCC
Figure 8
VCC
VCC
VCC
VCC
1500
CAGC 19
ENV 20 1500
5728-11.EPS 5728-12.EPS
Figure 9
VCC
Figure 10
VCC
VCC 120
TRIV 21
SWIN 27
VCC
5728-13.EPS 5728-14.EPS
2.4V
9/11
STV5728
TYPICAL APPLICATION
H1S P
1
60dB
RE C PB H2LP H1LP H1S P H2S P 28 S WR 22k S WH 27 +5V 26 Rrcy : 2.2k 22nF YREC 25 24 Rrcc : 8.2k 22nF CREC CP B 8.2k S WM
2
3
H2S P 1nF 620 S P HEADS 470nF
5 4
60dB
Re c ord Amplifica tor
1nF
620
CCOM
6
LP HEADS 60dB
7
P layba ck AGC
23 22 R ADJ : 22k YPB
H2LP
8
60dB
9
21 De te ctor 20 Re cord Re fere nce Curre nt (FM) 22nF
19
TRIV (ATR) ENV Enve lope Comp CAGC 22nF FMREC Rfmin : 12k
H1LP 470nF
10
1nF
620
CCOM2 HIFI HEADS 11 70dB H1FM 12 Re cord AGC 17
18
FMPB
13 70dB H2FM 14 P B REC MUTE H1FM H2FM OFF ON
16 +5V 100nF 22H
S WFMH
15
VCC
5728-04.EPS
22 F
S TV5728
SWITCH TABLE (Video)
SWR SWM L L (PB) H L H (REC) H SWH L H L H L H L H Channel H2SP H1SP H1LP H2LP SP LP
5728-08.TBL
ENVC HIGH if LP < SP LOW if LP > SP
SWITCH TABLE (FM HIFI)
SWR L H SWFMH L H L H Channel H2FM H1FM ON OFF
5728-09.TBL
Record Mute
10/11
STV5728
PACKAGE MECHANICAL DATA 28 PINS - PLASTIC MICROPACKAGE (SO)
Dimensions A a1 b b1 C c1 D E e e3 F L S
Min. 0.1 0.35 0.23
Millimeters Typ.
Max. 2.65 0.2 0.49 0.32 45 (Typ.)
o
Min. 0.004 0.014 0.009
Inches Typ.
Max. 0.104 0.0078 0.019 0.013
0.5 17.7 10 1.27 16.51 7.4 0.4 7.6 1.27 8 (Max.)
o
0.020 18.1 10.65 0.697 0.394 0.050 0.65
SO28C.TBL
0.713 0.419
0.291 0.016
0.299 0.050
Information furni shed is believed to be accurate and reliable. However, SGS-THOMSON Micr oelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No licence is granted by implication or otherwise und erany patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This pu blication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1997 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I 2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to 2 the I C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES 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.
11/11
PM-SO28.EPS

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