STV5715 ADVANCED 2-HEAD PLAY-BACK AND RECORD AMPLIFIER FOR VCR . . .. . . . . . PLAY-BACK MODE LOW NOISE AND WIDE BAND AMPLIFIERS FOR 2 HEADS AUTOMATIC OFFSET CANCELLATION BETWEEN THE 2 SELECTED HEADS ONE PLAY-BACK OUTPUT WITHOUT AGC ONE PLAY-BACK OUTPUT INCLUDING AGC RECORD AMPLIFIER INHIBITION AND RECORD OUTPUT GROUNDED OUTPUT FOR TRACKING VIDEO INFORMATION (TRIV) WITH ADJUSTABLE GAIN SO20 LARGE (Plastic Micropackage) RECORD MODE ONE INTEGRATED I/I CONVERTER WITH ACCURATE CONTROL OF TRANSCONDUCTANCE AUTOMATIC PLAY-BACK/RECORD SWITCHING BY SCANNING OF RECORD SUPPLY PLAY-BACK LOOP INHIBITION ORDER CODE : STV5715 PIN DESCRIPTION GND1 1 20 GND3 VREC 2 19 TRIVADJ CCAS 3 18 VMES I OUT 4 17 SW M H1 5 16 SW H GND2 6 15 CHROMA H2 7 14 VIN C2 8 13 LUMA C1 9 12 VCC 10 11 TRIV CAGC November 1993 5715-01.EPS DESCRIPTION The STV5715 is an advanced two head record and play-back amplifier for VCR. 1/9 STV5715 GND3 TRIVADJ VMES SW M SW H CHROMA VIN LUMA VCC TRIV BLOCK DIAGRAM 20 19 18 17 16 15 14 13 12 11 STV5715 LSP SW M 5 6 VREC CCAS I OUT H1 GND2 STV5715 is intended for 2 heads VCR applications. It includes all the electrical functions necessary to achieve play-back and record processing for VHS and S-VHS applications (10MHz bandwidth). High performancetechnologyallows very low noise levels (current and voltage), which are frequency independant in all the frequency range. In playback mode a special feature suppresses the DC offset when switching the two channels. Optimized play-back output stage gives to the STV5715 large capability to drive directly a coaxial cable in order to reduce number of external components. Two play-back outputs are availabe : one, dedicated to Chroma processing, is a 60dB voltage amplifier output, the other, dedicatedto Luma processing, is phase opposite signal with a constant AC output level of 200mVPP at 3.8MHz signal. A tracking information for video signal (TRIV) is Luma amplitude proportional and allows automatic 7 8 9 10 CAGC 4 C1 3 C2 2 H2 1 FUNCTIONAL DESCRIPTION TRIVADJ L GND1 H HLP 5715-02.EPS SW H phase correction. The transfer function has a gain of 2.5dB higher when a LP channel is selected. Adding to this, a gain control bloc allows to modify the gain (± 6dB) of the TRIV function for all the channels by applying a bias on pin TRIVADJ. An automatic scanning of record supply voltage permits STV5715 automatically switching either in play-back or in record mode. The switching threshold voltage is fixed to a value which forbids high current peaking through the heads. During play-back mode, record output is grounded via an internal transistor and during record mode preamplifiers are turned off. There is one output current for two recording heads, the DC current and the AC characteristics can be very precisely controlled with accurate external resistors. If recommended resistances are used, a ± 3% transconductanceaccuracy is guaranteed. STV5715 is fully protected against ESD. Symbol VCC VREC TJ Toper 2/9 Parameter Power Supply Voltage Power Supply Voltage Record Junction Temperature Operating Temperature Value 6 15 +150 0, +70 Unit V V o C o C 5715-01.TBL ABSOLUTE MAXIMUM RATINGS STV5715 Symbol R th (j-a) Parameter Value Junction-ambient Thermal Resistance Typ. Unit o 70 C/W 5715-02.TBL THERMAL DATA Symbol Parameter Min. Typ. Max. Unit V VCC Power Supply Voltage 4.5 5 5.5 VREC Power Supply Voltage Record 4.75 11.3 12.6 Capacitance at Pin CAGC 4.7 CAGC V nF 5715-03.TBL RECOMMENDED OPERATING CONDITIONS (Tamb = 25oC) ELECTRICAL OPERATING CHARACTERISTICS (Tamb = 25oC unless otherwise specified) Power Consumption Total Consumption (2) Notes : 1. 2. Record (1) Typ. Max. Typ. Max. VCC 42mA 52mA 25mA 38mA VREC 0mA 0mA 25mA 33mA VCC = 5V, V REC = 9V 210mW VCC = 5.5V, V REC = 9.45V 350mW 286mW 521mW 5715-04.TBL Play-Back Parameter R1 = 18Ω Taking in account only the consumption through the IC. A great care should be taken to the maximum power consumption : VREC can be increased to 12.6V if the DC current flowing through the head is reduced. This can be done by increasing R1 value. VREC can be reduced as long as voltage on Pin IOUT does not fall below 1V (to avoid output stage saturation). Play-back Mode VCC = 5V, no load on Pins CHROMA,LUMA Symbol ICC1 Parameter Test Conditions Supply Current Min. Typ. Max. Unit 32 42 52 mA CHROMA OUTPUT (no AGC) GPB Sinewave 600 kHz, 400mVPP on output Input on Pin H1 or H2 56 59 62 dB ∆GPB1 Difference of Output Signal on Pin CHROMA between Channel 1 and Channel 2 Sinewave 600kHz 0.4mVPP on inputs H1 and H2 -1.2 0 1.2 dB eN Equivalent Input Voltage Noise Level Input grounded via switching transistor on Pins H1, H2, f = 600kHz 0.6 nV ⁄ √ Hz iN Equivalent Input Current Noise Pins H1, H2 1.7 pA ⁄ √ Hz CRT Crosstalk Sinewave 3.8MHz, 400µVPP on input, All the other inputs loaded with Rg = 15Ω -45 -40 dB RPB Playback Switch-on Resistance ∆I = 10mA 2.0 5.0 Ω Bandwidth Cut-off Frequency -3dB attenuation 50Ω in parallel on the input, 0dB at 600kHz Low High 0.1 MHz MHz 30 40 pF 600 900 Ω 24 50 Ω FLCPB1 FHCPB1 CIN Input Capacitance Pins H1, H2 At 5MHz RIN Pre-amplifier Input Resistance Pins H1, H2 At 3.8MHz Output ImpedancePin CHROMA DC ZCPB 8 400 13.5 5715-05.TBL Pre-amplification Gain 3/9 STV5715 ELECTRICAL OPERATING CHARACTERISTICS (Tamb = 25oC unless otherwise specified) (continued) Play-back Mode VCC = 5V, no load on Pins CHROMA,LUMA Symbol Parameter Test Conditions Min. Typ. Max. Unit CHROMA OUTPUT (no AGC) (continued) VDCPB1 DC Level at Play-back Output on Pin CHROMA 1.5 ∆VDC Head Switch Offset Pin CHROMA -100 SH PB1 Second Harmonic Play-back Output Sinewave 3.8MHz Pin CHROMA 400µVPP on input 1.9 2.3 V 0 100 mV -45 -40 dB LUMA OUTPUT (with AGC) ZLPB VDCPB2 Output Impedance Bandwidth Cut-off Frequency FLCPB2 FHCPB2 30 50 Ω 1.1 1.5 2.1 V 0.1 10 12.5 MHz MHz 200 270 mVPP +1 dB -39 dB DC DC Level -3dB attenuation 50Ω in parallel on the input, AGC locked, 0dB at 3.8MHz Low High VLPB Output Amplitude Input signal 200µVPP at 3.8MHz on Pins H1, H2 140 ∆VLPB AGC Control Sensitivity Input signal 200µVPP at +6dB or -5dB on Pins H1, H2 -2 SH PB2 Second Harmonic Play-back Output Input Signal 3.8MHz 400µVPP on Pins H1, H2 -44 CAGC I+ Positive Output Current Input Signal 3.8MHz 200µVPP on H1 15 30 50 µA I- Negative Output Current Input Signal 3.8MHz 200µVPP on H1 -50 -30 -15 µA 200 300 400 µA VTRIV1 Output Level (1) With no signal, VTRIVADJ = 2.5V Mode LP (SW-M = high) 0.3 0.6 1.5 V VTRIV2 Output Level (2) VCHROMA = 100mVPP at 4MHz VTRIVADJ = 2.5V, Mode LP (SW-M = high) 1.91 2.31 2.91 V VTRIV3 Output Level (3) 3.525 3.725 3.985 VCHROMA = 400mVPP at 4MHz VTRIVADJ = 2.5V, Mode LP (SW-M = high) V VTRIV4 Output Level (4) VCHROMA = 100mVPP at 4MHz VTRIVADJ = 1V, Mode LP (SW-M = high) 1.110 1.610 2.311 V VTRIV5 Output Level (5) VCHROMA = 100mVPP at 4MHz VTRIVADJ = 4V, Mode LP (SW-M = high) 2.875 3.075 3.335 V VTRIV6 Output Level (6) VCHROMA = 400mVPP at 4MHz VTRIVADJ = 2.5V, Mode SP (SW-M = low) 3.215 3.415 3.675 V VTRIV7 Output Level (7) VCHROMA = 100mVPP at 4MHz VTRIVADJ = 2.5V, Mode SP (SW-M = low) 1.65 2.05 2.65 V fTRIV1 Response Lower Frequency VCHROMA = 400mVPP at 4MHz and 1MHz VTRIVADJ = 2.5V, Mode LP (SW-M = high) -10 -6 -3 dB fTRIV2 Response Higher Frequency VCHROMA = 400mVPP at 8MHz and 4MHz VTRIVADJ = 2.5V, Mode LP (SW-M = high) -2.5 -1 -0 dB GTRIV High Level Input LP : VCHROMA = 100mVPP, 300mVPP at 4MHz, VTRIVADJ = 2.5V 4 5.5 7 V/V ITRIV 4/9 Downloading Current 5715-06.TBL TRIV STV5715 ELECTRICAL OPERATING CHARACTERISTICS (Tamb = 25oC unless otherwise specified) (continued) Symbol Parameter Pins GND/VMES Pins VMES/VIN Pin VIN Test Conditions Min. IREC ICC2 Current Supply VREC = 11.3V VCC = 5V 17 15 Imax Max. Record Current 3.8MHz 35 TR Transconductance VIN = 300mVPP 45 SHREC Second Harmonic Output Current, 30mAPP at 3.8MHz at Pin IOUT Bandwidth Cut-off Frequency Pin IOUT -3dB attenuation, 0dB at 3.8MHz Output current 30mAPP Low High 10 Equivalent value of R3 resistor 500 Min. FLCR FHCR RVIN Input Resistance on Pin VIN Typ. Max. Unit 25 25 33 38 mA mA 55 65 mA/V -54 -38 dB 0.1 MHz MHz 700 900 Ω Typ. Max. Unit mAPP 5715-07.TBL Record Mode VREC = 11.3V, VCC = 5V, Load resistor 50Ω on Pin IOUT Transconductance network defined by : R1 = 18Ω, 1% R2 = 1.5kΩ, 1% R3 = 1.5kΩ, 1% Switching Levels Parameter Test Conditions VSWHH Head number 1 2.4 VCC V VSWHL Head number 2 0 1.5 V ISWHH Input current (5V) 5 15 50 µA -20 0 µA Head Selection Pin SW-H ISWHL Output current (0V) -50 VSWMH LP Mode 2.4 5 V VSWML SP mode 0 1.5 V Mode Selection Pin SW-M ISWMH Input current (5V) ISWML Output current (0V) Selection Pin SW-H Transient Response 5 15 50 µA -50 -20 0 µA Output signal appears on Pin CHROMA ns Delay time selection ON Delay time selection OFF tON tOFF 500 500 0.3 0.5 VTH1 Inhibition Threshold Hysteresis for Switching from Play-back to record on Pin VREC VCC = 5V VTH2 Inhibition Threshold Hysteresis for Switching from Record to Play-back on Pin VREC VCC = 5V 80 mV Delay from play-back to record (signal disappears on Pin CHROMA) 10 µs Delay from record to play-back (signal appears on Pin CHROMA) 32* ms Delay from play-back to record (signal appears on Pin IOUT) 0.2 ms Delay from record to play-back (signal disappears on Pin IOUT) 11* ms t1 t2 t3 t4 Transient Response of Record Scanning on Pin VREC 0.15 100 100 V * Depending on capacitance on Pin VREC ; above values are according to the application diagram at page 9. 5/9 5715-08.TBL Symbol STV5715 INPUT/OUTPUTS EQUIVALENT INTERNAL DIAGRAM Pins : C1, C2 Pins : SW-H, SW-M VCC 10kΩ VCC 15kΩ 7.5kΩ 47kΩ 10kΩ 400Ω 5715-04.EPS 5715-03.EPS 1kΩ Pin : VMES Pins : Chroma, Luma V CC VREC 4kΩ 5pF 800Ω 500Ω 1.5pF 0.5pF 6pF 5715-06.EPS 18Ω 5715-05.EPS 75Ω Pin : VIN Pin : CAGC V CC V CC V CC 750Ω 750Ω 6pF 6/9 5715-08.EPS 5715-07.EPS 2.4V STV5715 INPUT/OUTPUTS EQUIVALENT INTERNAL DIAGRAM (continued) Pin : TRIV Pin : TRIVADJ V CC V CC 9kΩ 2.5V 5715-09.EPS 5715-10.EPS 300µA Pin : VCC Pin : VREC 5715-11.EPS 5715-12.EPS 1mA Pin : IOUT Pins : CCAS, H1, H2 VCC V CC 5V 240kΩ ESD protection 10pF 80kΩ 2.8mA in play-back 5715-13.EPS V MES H1-SP H2-SP 2.1V CCAS 36kΩ 5715-14.EPS 800Ω 1.5kΩ H1-LP H2-LP 7/9 STV5715 APPLICATION DIAGRAM 1kΩ SW M SW H R1 18Ω R3 1.5kΩ 1kΩ 1nF 22µ H 20 19 18 17 16 14 13 5V TRIV 22µF 22nF 15 V CC LUMA V IN CHROMA SW H GND3 SW M R2 1.5kΩ 22nF V MES 4.5kΩ 1nF V IN Y TRIVADJ V IN C 12 11 STV5715 LSP SW M 22nF 10 22nF C1 9 22nF GND2 8 C2 H2 7 H2 1kΩ 22nF 5715-15.EPS H1 6 22nF 5 H1 I OUT 4 22nF 3 CCAS GND1 22µ F 22µ H 22nF V REC 2 VREC 1 TRIVADJ L 22nF H HLP CAGC SW H 8/9 STV5715 PACKAGE MECHANICAL DATA 20 PINS - PLASTIC MICROPACKAGE L s e3 b1 e a1 b A a2 C c1 E D M 11 1 10 Dimensions Millimeters Min. Typ. A Inches Max. Min. Typ. 2.65 0.1 0.104 0.2 a2 Max. 0.004 0.008 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 45o (typ.) c1 D 12.6 E 10 13.0 0.496 10.65 0.394 0.510 0.419 e 1.27 0.050 e3 11.43 0.450 F 7.4 7.6 0.291 L 0.5 1.27 0.020 M S 0.75 0.300 0.050 SO220L.TBL a1 PM-SO20L.EPS F 20 0.030 8o (max.) Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without noti ce. This publication 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. 1994 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C 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 the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 9/9