Monolithic Linear LA7688 Single-Chip Signal-Processing Circu

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Monolithic Linear LA7688 Single-Chip Signal-Processing Circu

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Ordering number EN5635
Monolithic Linear
LA7688
Single-Chip Signal-Processing Circuit NTSC Formats
Overview
LA7688 integrates VIF, SIF, video, chrominance, deflection processing circuits PAL/NTSC format sets single chip provided 52-pin shrink package. circuits achieve semi-adjustment-free operation, adjustment-free except coil circuit. chrominance circuit made adjustment-free using LC89950 delay line signal processing required multi-format color implemented combining this product with LA7642 SECAM decoder
[OSD] [DEF]
Analog Automatic 50/60 discrimination Fixed vertical size Double Built-in sync separator circuit [Other features] Sandcastle pulse (for delay line) output (for SECAM systems) Primary color output
Package Dimensions
unit: 3218-DIP52S
[LA7688]
Features
[VIF] [SIF] [VIDEO] detector Buzz canceller detector Audio switch Built-in trap Built-in Aperture control Video switch (SVO output) Black expansion PAL/NT Base band processing (adjustment free) Built-in bandpass filter
[CHROMA]
SANYO: DIP52S
Specifications
Maximum Ratings 25°C
Parameter Maximum supply voltage Maximum supply current input current input voltage Allowable power dissipation Operating temperature Storage temperature Symbol Topr Tstg 65°C When mounted printed circuit board* Conditions Ratings +150 Unit
Note Printed circuit board size: material: Bakelite
Operating Conditions 25°C
Parameter Recommended supply voltage Recommended supply current Operating voltage range Operating current range Symbol Conditions Ratings Unit
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, JAPAN
82097HA(OT) 5635-1/6
LA7688 Operating Characteristics 25°C, VCC40,
Parameter [Circuit Voltages Currents] Horizontal power-supply voltage Current drain [VIF Block] maximum voltage minimum voltage Input sensitivity range Maximum allowable input Quiescent video output voltage Synchronizing signal voltage Video output amplitude Black noise threshold voltage Black noise clamp voltage Output signal-to-noise ratio 1.07 beat level Frequency characteristics Differential gain Differential phase Quiescent voltage Maximum voltage Minimum voltage detection sensitivity input resistance input capacitance pull-in range pull-in range VCO1 maximum variation range signal level VCO1 control sensitivity [SIF Block] limiting sensitivity detector output voltage Total harmonic distortion detector range detector range detector output variability [INT/EXT Switching Block] gain distortion System switch I-SE System switch I-P/N System switch E-P/N System switch E-SE [Video Switching Block] Video signal input voltage Video signal input voltage Video signal input voltage Video signal input voltage voltage voltage V10DC V10AC V14DC V14AC V16DC V16AC Vp-p Vp-p Vp-p V1TH1 V1TH2 V1TH3 V1TH4 Notes: INT, PAL/NTSC SECAM -0.7 -0.2 0.03 +0.3 (lim) (FM) (SIF) WFML WFMH mVrms V50H V50L V8tip VBTH VBCL SOUT 38.9 38.9 -2.0 -0.8 -0.8 Vp-p mV/kHz mVrms VCCH Deflection system (V24) Symbol Conditions Ratings Unit
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LA7688
Continued from preceding page.
Parameter [Filter Block] Filter automatic adjustment open voltage input threshold C-TRAP C-BPF1 C-BPF2 C-BPF3 Y-DL TIME1 Y-DL TIME2 Y-DL TIME3 Y-DL TIME4 [Video Block] Contrast center Contrast variation range Brightness minimum (0.5 Brightness typical (2.5 Brightness maximum (4.5 Soft control characteristics Sharp control characteristics signal frequency characteristics signal frequency characteristics signal frequency characteristics transmission ratio Black expansion threshold Black expansion maximum gain [Chrominance Common] output voltage output voltage output voltage output voltage input voltage input voltage input range input voltage input voltage input range Residual color Contrast color amplitude characteristics output difference voltage output voltage temperature characteristics output residual high-frequency level output residual carrier level output voltage output level output level COIN-L Crystal switching threshold switching threshold switching threshold V39DC E39AC V38DC E38AC V37DC E37AC E37ALC V36DC E36AC E36ALC ECMIN dGCC VC/T V27OPN V27ACP V27ACN V27LO V27TH V18PTH V18NTH NTSC With chrominance signal input 0.14 0.19 0.26 With chrominance signal input With chrominance signal input -0.3 0.26 0.33 0.45 0.35 0.45 0.35 0.60 0.60 0.75 0.65 0.75 0.65 +0.3 Vp-p Vp-p Vp-p mVp-p Vp-p mVp-p mVp-p mV/°C Vp-p Vp-p Vp-p Vp-p ECCEN dGSOFT dGSHARP dVAPL BSTH BSmax S-VHS NTSC -6.0 -4.0 3.35 2.85 -2.0 10.5 Vp-p V9OPN V9TH GTRAP GBPF1 GBPF2 GBPF3 Tdy1 Tdy2 Tdy3 Tdy4 NTSC (PAL) SECAM 4.43 Symbol Conditions Ratings Unit
Continued from preceding page.
5635-3/6
LA7688
Continued from preceding page.
Parameter [Chrominance System Block] amplitude characteristics amplitude characteristics Killer operating point Killer hysteresis output level Maximum output pull-in range pull-in range Demodulated output ratio Demodulated output ratio Demodulated output ratio Demodulation angle [Chrominance System NTSC Block] amplitude characteristics amplitude characteristics phase characteristics phase characteristics Killer operating point Killer hysteresis output level Maximum output pull-in range pull-in range Tint control variation range Demodulated output ratio Demodulated output ratio Demodulation angle Demodulation angle [RGB Block] input level input voltage F-BLK input threshold level output pedestal level difference output maximum output minimum Character signal output frequency characteristics TV-OSD crosstalk (C-Y) OSD-TV crosstalk (C-Y) Character signal inter-character crosstalk [DEF Block] Vertical free-running period Vertical free-running period Vertical synchronization maximum period Vertical synchronization maximum period Vertical synchronization minimum period Vertical synchronization minimum period Vertical blanking peak value Vertical blanking pulse width Vertical blanking pulse width Vertical output pulse width Vertical output voltage Vertical output voltage Vertical output voltage TVFREE50 TVFREE60 TVmax50 Horizontal synchronizing signal only TVmax60 Horizontal synchronizing signal only TVmin50 TVmin60 VHVBL PWBLK50 PWBLK60 PWVOUT VOUTH VOUVOUTL 312.0 262.0 356.5 296.5 268.5 224.5 312.5 262.5 357.0 297.0 269.0 225.0 23.5 19.5 313.0 263.0 357.5 297.5 269.5 225.5 V28TH OSDC OSDmax OSDmin OSDC Standard input, 100% white level With signal -0.3 +0.3 Vp-p Vp-p Vp-p Vp-p ACC1n ACC2n PCC1n PCC2n KILn KILn EBmaxn scn+ scn- R/Bn G/Bn 0.81 0.24 -130 0.90 0.30 -120 Chrominance: 50%, color: typical Chrominance: 50%, color: maximum -350 0.99 0.36 -110 Vp-p Vp-p double double ACC1p ACC2p KILp KILp EBmaxp scp+ scp- B/Rp G/Rp G/Bp With signal With signal 1.50 -0.56 -0.21 1.78 -0.51 -0.91 Chrominance: 50%, color: typical Chrominance: 50%, color: maximum -500 2.00 -0.46 -0.17 Vp-p Vp-p double double double Symbol Conditions Ratings Unit
Continued next page. 5635-4/6
LA7688
Continued from preceding page.
Parameter Vertical external trigger load resistance Vertical automatic synchronization stop voltage Horizontal gate release voltage Vertical output start voltage Horizontal free-running deviation Horizontal free-running frequency dependence Horizontal pull-in range Horizontal output start voltage AFC2 peak value AFC2 peak value AFC2 peak value Horizontal output pulse width Horizontal output phase maximum Horizontal output phase center Horizontal output phase minimum Burst gate pulse width Burst gate pulse phase 50/60 output voltage 50/60 output voltage 50/60 input voltage 50/60 input voltage SECAM pulse peak value SECAM pulse width Symbol VSAS fH/VCC fHPLL FBPH FBPM FBPL PWHOUT HPmax HPcen HPmin PWBGP TdBGP VIN50 VIN60 11.0 11.5 12.0 -0.2 -0.3 21.8 ±450 +0.2 23.8 +0.3 +0.8 +0.7 25.8 -150 Conditions Ratings +150 Unit
5635-5/6
LA7688 Test Circuit
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss. Anyone purchasing products described contained herein above-mentioned shall: Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information August, 1997. Specifications information herein subject change without notice. 5635-6/6
LC4528

Monolithic Linear LA7688 Single-Chip Signal-Processing Circu

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