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| Ordering number : EN5635 Monolithic Linear IC LA7688 Single-Chip CTV Signal-Processing Circuit for PAL and NTSC Formats Overview The LA7688 integrates VIF, SIF, video, chrominance, and deflection processing circuits for PAL/NTSC format TV sets on a single chip and is provided in a 52-pin shrink package. The VIF and SIF circuits achieve semi-adjustment-free operation, and are adjustment-free except for the VCO coil and the RF AGC circuit. The chrominance circuit can be made adjustment-free by using the LC89950 1H delay line IC. All the signal processing required for a multi-format color TV can be implemented by combining this product with the LA7642 SECAM decoder IC. [OSD] [DEF] * Analog OSD * Automatic 50/60 Hz discrimination * Fixed vertical size * Double AFC * Built-in sync separator circuit [Other features] * Sandcastle pulse (for the 1H delay line) * fsc output (for SECAM systems) * Primary color output Package Dimensions unit: mm 3218-DIP52S [LA7688] Features [VIF] [SIF] [VIDEO] * PLL detector * Buzz canceller * PLL detector * Audio switch * Built-in trap * Built-in DL * 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 at Ta = 25C Parameter Maximum supply voltage Maximum supply current FBP input current FBP input voltage Allowable power dissipation Operating temperature Storage temperature Symbol V40 max V45 max I24 max I26 max I32 max I26 min Pd max Topr Tstg Ta 65C When mounted on a printed circuit board* Conditions Ratings 9 9 16 5 10 -5 1.3 -10 to +65 -55 to +150 Unit V V mA mA mA V W C C Note : * Printed circuit board size: 83 x 86 x 1.5 mm, material: Bakelite Operating Conditions at Ta = 25C Parameter Recommended supply voltage Recommended supply current Operating voltage range Operating current range Symbol V40 V45 I24 V40 op V45 op I24 op Conditions Ratings 7.6 7.6 12 7 to 8.2 7 to 8.2 10 to 16 Unit V V mA V V mA SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 82097HA(OT) No. 5635-1/6 LA7688 Operating Characteristics at Ta = 25C, VCC40, 45 = 7.8 V, I24 = 12 mA Parameter [Circuit Voltages and Currents] Horizontal power-supply voltage Current drain [VIF Block] RF AGC maximum voltage RF AGC minimum voltage Input sensitivity AGC range Maximum allowable input Quiescent video output voltage Synchronizing signal tip voltage Video output amplitude Black noise threshold voltage Black noise clamp voltage Output signal-to-noise ratio 1.07 MHz beat level Frequency characteristics Differential gain Differential phase Quiescent AFT voltage Maximum AFT voltage Minimum AFT voltage AFT detection sensitivity VIF input resistance VIF input capacitance APC pull-in range (U) APC pull-in range (L) VCO1 maximum variation range SIF signal level VCO1 control sensitivity [SIF Block] SIF limiting sensitivity FM detector output voltage AMR Total harmonic distortion SIF S/N FM detector range (L) FM detector range (H) FM detector output variability [INT/EXT Switching Block] AFT EXT gain AFT EXT 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 1 DC voltage Video signal input 1 AC voltage Video signal input 2 DC voltage Video signal input 2 AC voltage SVO pin DC voltage SVO pin AC voltage V10DC V10AC V14DC V14AC V16DC V16AC 2.5 1.7 3.2 3.2 3.5 1.0 3.5 1.0 2.8 2.0 3.1 2.3 3.8 3.8 V Vp-p V Vp-p V Vp-p GAF THD AF V1TH1 V1TH2 V1TH3 V1TH4 Notes: I = INT, E = EXT P/N = PAL/NTSC SE = SECAM 0 1.7 2.9 4.1 -0.7 -0.2 0.03 +0.3 0.5 1.2 2.6 3.8 5 dB % V V V V Vi (lim) VO (FM) AMR THD S/N (SIF) WFML WFMH VO 7.0 0 55 40 390 40 46 500 60 0.3 62 2.5 8.0 2.0 3.0 4.0 1.0 52 710 dB mVrms dB % dB MHz MHz dB V50H V50L Vi GR VIN max V8 V8tip VO VBTH VBCL S/N C/S fC DG DP V7 V7H V7L Sf Ri Ci fPU fPL fU1 fL1 SOUT 110 2.4 0.8 f = 38.9 MHz f = 38.9 MHz 3.6 7.3 0 10 1.0 2 0.8 56 95 4.1 1.7 1.7 1.0 2.7 48 40 6 7.5 7.8 0.2 39 60 100 4.4 2.0 2.0 1.3 3.0 52 44 9 5 6 3.9 7.6 0.3 15 1.3 3 2.0 -2 2.0 -2.0 140 4.8 -0.8 170 9.6 -0.8 10 10 4.2 7.8 0.7 20 1.6 5 4.7 2.3 2.3 1.7 3.3 7.8 0.6 45 V V dB dB dB V V Vp-p V V dB dB MHz % deg V V V mV/kHz k pF MHz MHz MHz MHz mVrms kHz VCCH I40 I45 Deflection system (V24) 6.4 78 34 6.9 90 40 7.4 100 48 V mA mA Symbol Conditions Ratings min typ max Unit Continued on next page. No. 5635-2/6 LA7688 Continued from preceding page. Parameter [Filter Block] Filter automatic adjustment open voltage S 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 V) Brightness typical (2.5 V) Brightness maximum (4.5 V) Soft control characteristics Sharp control characteristics Y signal frequency characteristics (1) Y signal frequency characteristics (2) Y signal frequency characteristics (3) DC transmission ratio Black expansion threshold Black expansion maximum gain [Chrominance Common] R-Y output DC voltage R-Y output AC voltage B-Y output DC voltage B-Y output AC voltage R-Y input DC voltage R-Y input AC voltage R-Y input AC range B-Y input DC voltage B-Y input AC voltage B-Y input AC range Residual color Contrast color amplitude characteristics RGB output DC difference voltage RGB output DC voltage temperature characteristics RGB output residual high-frequency level RGB output residual carrier level fSC output pin DC voltage fSC output level P fSC output level N DEF COIN-L Crystal switching threshold PAL switching threshold NT switching threshold V39DC E39AC V38DC E38AC V37DC E37AC E37ALC V36DC E36AC E36ALC ECMIN dGCC dVC VC/T E car e car V27OPN V27ACP V27ACN V27LO V27TH V18PTH V18NTH 0.9 PAL NTSC With no chrominance signal input 4.5 0.14 0.19 1.0 5.0 0.2 0.26 1.3 400 0.6 With no chrominance signal input With no chrominance signal input 30 -0.3 35 0 0 0.2 0.3 5.3 0.26 0.33 1.6 3.6 0.45 3.6 0.35 4.2 0.45 160 4.2 0.35 160 4.0 0.60 4.0 0.5 4.6 0.60 200 4.6 0.5 200 4.4 0.75 4.4 0.65 5.0 0.75 250 5.0 0.65 250 200 40 +0.3 V Vp-p V Vp-p V Vp-p mVp-p V Vp-p mVp-p mVp-p dB V mV/C Vp-p Vp-p V Vp-p Vp-p V A V V ECCEN dGC VB min VB typ VB max dGSOFT dGSHARP BW1 BW2 BW3 dVAPL BSTH BSmax 40 -20 S-VHS PAL NTSC 1.0 18 0.4 1.9 3.4 -6.0 4.5 3.9 3.0 2.5 1.2 22 0.7 2.2 3.7 -4.0 7.5 4.4 3.35 2.85 100 50 -13 60 -6 1.4 26 1.0 2.5 4.0 -2.0 10.5 4.9 3.7 3.2 Vp-p dB V V V dB dB MHz MHz MHz % IRE IRE V9OPN V9TH GTRAP GBPF1 GBPF2 GBPF3 Tdy1 Tdy2 Tdy3 Tdy4 PAL NTSC S (PAL) SECAM fSC = 4.43 MHz 3.3 1.5 -20 -5 -2 -6 400 410 230 510 3.8 2.0 -26 -3 -1 -4 450 460 280 560 4.3 2.5 -32 -1 0 -2 500 510 330 610 V V dB dB dB dB ns ns ns ns Symbol Conditions Ratings min typ max Unit Continued from preceding page. No. 5635-3/6 LA7688 Continued from preceding page. Parameter [Chrominance System PAL Block] ACC amplitude characteristics 1 ACC amplitude characteristics 2 Killer operating point Killer hysteresis RGB output level Maximum RGB output APC pull-in range + APC pull-in range - Demodulated output ratio B/R Demodulated output ratio G/R Demodulated output ratio G/B Demodulation angle [Chrominance System NTSC Block] ACC amplitude characteristics 1 ACC amplitude characteristics 2 ACC phase characteristics 1 ACC phase characteristics 2 Killer operating point Killer hysteresis RGB output level Maximum RGB output APC pull-in range + APC pull-in range - Tint control variation range Demodulated output ratio R Demodulated output ratio G Demodulation angle RB Demodulation angle GB [RGB Block] OSD input level OSD input DC voltage F-BLK input threshold level OSD output pedestal level difference OSD output maximum OSD 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 50 Vertical free-running period 60 Vertical synchronization maximum period 50 Vertical synchronization maximum period 60 Vertical synchronization minimum period 50 Vertical synchronization minimum period 60 Vertical blanking peak value Vertical blanking pulse width 50 Vertical blanking pulse width 60 Vertical output pulse width Vertical output voltage H Vertical output voltage M Vertical output voltage L TVFREE50 TVFREE60 TVmax50 Horizontal synchronizing signal only TVmax60 Horizontal synchronizing signal only TVmin50 TVmin60 VHVBL PWBLK50 PWBLK60 PWVOUT VOUTH VOUTM VOUTL 23 19 8.0 5.3 4.0 312.0 262.0 356.5 296.5 268.5 224.5 312.5 262.5 357.0 297.0 269.0 225.0 0.6 23.5 19.5 8.5 5.6 4.3 313.0 263.0 357.5 297.5 269.5 225.5 1.0 24 20 9.0 5.9 4.6 0.3 H H H H H H V H H H V V V E OSD V OSD V28TH V OSDC E OSDmax E OSDmin BW OSD CT TVC CT OSDC CT OSD Standard input, 100% white level With no signal 2.9 0.8 -0.3 4.3 0.3 5 50 40 30 0.7 3.2 1.0 0 4.8 0.6 7 3.5 1.2 +0.3 5.3 0.9 Vp-p V V Vp-p Vp-p Vp-p MHz dB dB dB ACC1n ACC2n PCC1n PCC2n E KILn dE KILn E Bn EBmaxn df scn+ df scn- dP TI R/Bn G/Bn RBn GBn -33 0.81 0.24 95 -130 0.90 0.30 105 -120 Chrominance: 50%, color: typical Chrominance: 50%, color: maximum -2 -4 -3 -5 -40 1 3.4 5.0 350 -350 +50 0.99 0.36 115 -110 +1 0 0 0 -34 4 3.9 5.5 +4 +2 +3 +5 -29 8 4.4 6.0 dB dB deg deg dB dB Vp-p Vp-p Hz Hz deg double double deg deg ACC1p ACC2p E KILp dE KILp E Bp EBmaxp df scp+ df scp- B/Rp G/Rp G/Bp RBp With no B-Y signal With no R-Y signal 1.50 -0.56 -0.21 85 1.78 -0.51 -0.91 90 Chrominance: 50%, color: typical Chrominance: 50%, color: maximum -2 -4 -37 1 4.1 5.4 500 -500 2.00 -0.46 -0.17 95 +1 0 -30 3 4.6 5.9 +4 +2 -25 7 5.1 6.4 dB dB dB dB Vp-p Vp-p Hz Hz double double double deg Symbol Conditions Ratings min typ max Unit Continued on next page. No. 5635-4/6 LA7688 Continued from preceding page. Parameter Vertical external trigger load resistance Vertical automatic synchronization stop voltage Horizontal AFC gate release voltage Vertical output start VCC voltage Horizontal free-running deviation Horizontal free-running frequency VCC dependence Horizontal pull-in range Horizontal output start VCC voltage AFC2 FBP peak value H AFC2 FBP peak value M AFC2 FBP peak value L 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 Hz output voltage 50 50/60 Hz output voltage 60 50/60 Hz input voltage 50 50/60 Hz input voltage 60 SECAM V pulse peak value SECAM V pulse width Symbol RTR VSAS VGS SVV fH fH/VCC fHPLL SHV FBPH FBPM FBPL PWHOUT HPmax HPcen HPmin PWBGP TdBGP V50 V60 VIN50 VIN60 SVH SVW 1.8 11.0 2.2 11.5 3.8 0.5 7.0 2.6 12.0 3 -0.2 6.0 3.2 -0.3 21.8 14 4.8 450 4.8 6.5 3.7 +0.2 23.8 17 5.8 3.8 4 +0.3 1.1 4.1 6.8 4.8 5 +0.8 1.5 5.2 7.0 4.2 +0.7 25.8 -150 Conditions Ratings min 3.0 typ 4.7 1.4 2.0 4.2 0 2 1.9 2.5 4.7 +150 max Unit k V V V Hz Hz Hz V V V V s s s s s s V V V V V H No. 5635-5/6 LA7688 Test Circuit s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of August, 1997. Specifications and information herein are subject to change without notice. No. 5635-6/6 LC4528 |
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