LA7358 Sanyo Semiconductor Corporation, LA7358 Datasheet
LA7358
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LA7358 Summary of contents
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... Ordering number : ENA0638 LA7358 Overview LA7358 is a VCR-use SECAM chroma signal processor. Function • 4.3MHz BPF • 1.1MHz BPF • Limiter • AGC (in PB mode) • 4-divide circuit Specifications Maximum Ratings 25°C Parameter Symbol Maximum supply voltage V CC max Allowable power dissipation ...
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... REC BELL GBLRL characteristics (2) REC BELL GBLRH characteristics (3) REC mode GKLR killer operation level REC EQ center frequency FEQR1 REC EQ characteristics (1) VEQRC LA7358 Test Input Conditions point S15 A22 0V, V16 = 0V, S27 = Comp.Sync S15 = Colour bar signal (Fig.1) S15 T17 5V, V16 = 0V, S27 = Comp.Sync S15 = sine wave (200mVp- ...
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... VAGC characteristics (1) AGC control GAGC1 characteristics (2) AGC control GAGC2 characteristics (3) 1.1MHz BPF GF1L characteristics (1) 1.1MHz BPF GF1H1 characteristics (2) LA7358 Test Input Conditions point S21 T11 SW1 = ON 5V 0V, V16 = 0V, S21 = sine wave (200mVp- 3.8MHz) referenced (0dB) to VEQRC. SW21A = SW21B = ON, S27 = Comp.Sync S21 ...
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... GEQPH PB BELL centre frequency FBLP1 PB BELL characteristics (1) VBLPC PB BELL characteristics (2) GBLPL PB BELL characteristics (3) GBLPH PB chroma signal VOP output level LA7358 Test Input Conditions point S13 T11 V6 = 5V, SW14 = ON, V14 = V14R(Note4) S13 = sine wave (50mVp- 3.3kHz), referenced (0dB) to VAGC. V16 = 5V, S27 = Comp.Sync ...
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... PB mode phase detection VSCPD1 output differential voltage (1) PB mode phase detection VSCPD2 output differential voltage (2) PB mode phase detection VSCPD3 output differential voltage (3) LA7358 Test Input Conditions point S13 T17 SW1 = ON 5V 0V, V16 = 5V, S13 = sine wave (50mVp- 1.1MHz) SW8B = ON, S27 = Comp.Sync Measure 2 ...
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... REC/PB control VTRP threshold voltage Forced SECAM mode VTHSM threshold voltage Forced MUTE mode VTHMM threshold voltage Reference voltage VREG LA7358 Test Input Conditions point V23 T26 V16 = 5V, SW23 = SW24 = ON V24 (Note15) V23 T26 Same as above. V24 ...
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... MUTE SYNC GATE GEN to SYNC GATE / V-SEP BGP to PB AGC GEN to REC KILLER MODE to MUTE CTL AFC 4.43MHz VCO MODE CLK IN AFC BGP FILTER TIMING LA7358 15 14 0.95 0.48 SANYO : DIP28SD(400mil) 4.3MHz S VREF4 BELL 4.3MHz REC PB OSC ADJ. 2.2MHz × ...
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... SECAM detecting circuit. VCO OUT TEST MODE TEST CTL A setting terminal for TEST mode. 6 SH3 A terminal for holdinglimiter voltage of phase detection output of SECAM detection. LA7358 DC voltage Signal wave form 2.5V DC 4.0V 3. Add DC voltage 4V. 4.9V (TEST mode: connect 1kΩ ...
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... V period). 9 VREF1 Occur voltage in PB mode and BELL-filter automatic adjusting mode. 10 IREF1 Setting reference current (Adjusting gain of BELL-filter output) 11 REC-OUT LA7358 DC voltage Signal wave form 0V 2.5V 200mVp-p Center frequency 1.1MHz 2.5V Center frequency 1.1MHz 2.5V 300mVp-p Center frequency 1.1MHz 2.5V DC 2.3V DC REC : 2 ...
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... REG-4.2V A terminal of reference voltage output. 13 PB-IN 14 AGC-FILTER PB MODE REC MODE KILLER-FILTER 15 REC-IN 16 PB/REC mode VTH selecting control 17 PB-OUT 18 LIM-EXC LA7358 DC voltage Signal wave form 4. ±VBE DC 2. 2.5V REC : OPEN 2.3V DC Equivalent circuit 12 to other block 3.25V 10kΩ 1kΩ ...
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... Operate in REC mode Operate in PB mode a terminal for connecting filter of voltage Amp. Operate during adjusting automatic BELL-filter (a part of V period SHC1 A terminal of sample & HOLD. LA7358 DC voltage Signal wave form 2.3V DC 2.5V DC 2.5V 2.5V 2. 2.5V DC (when connecting condensor) Equivalent circuit V CC ...
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... Pin name Function 24 SHC2 A terminal of sample & HOLD. 25 DETC 26 SECAM DET Operate except in OUT TEST mode. (Generally) BGP MONITOR Operate in TEST (TEST mode) mode. 27 SYNC DELAY LA7358 DC voltage Signal wave form 2.5V DC (when connecting condensor ( Threshold voltage 2. Equivalent circuit 5kΩ 1kΩ 2kΩ ...
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... Test Circuits SW23 V23 SW24 V24 SW25 T25 V25 T26 S27 220pF SW1 SW2 4.433619MHz 200mVp-p LA7358 A22 T23 S21 T24 T21 LA7358 SW8A S8 SW21B T17 S15 V16 V14 S13 T11 T12 No.A0638-13/17 T14 SW14 ...
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... Input a sine wave (50mVp- 1.2MHz) to S13 and assign to FEQP1 / FEQP2 the frequency at S13 when the signal level maximized. (Note 6) PB BELL centre frequency (1) (FBLP1) / (2) (FBLP2) : Input a sine wave (200mVp- 1.2MHz and assign to FBQP1 / FBQP2 the frequency at S8 when the signal level at T17 is minimized. LA7358 SECAM standard colour bar signal (75 4.40625MHz 4 ...
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... Input Comp.sync to S27 and take the sync gate start time (TRGB) as the time from when the signal at T17 attenuates until the horizontal sync signal rises until the signal at T17 starts increasing. S27 (C.SYNC) TPGB T11 (PB-OUT) LA7358 64µs TRGE Fig.2 REC mode sync gate timing 64µs TPGE Fig ...
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... The sync signal at pin 27 must lag the SECAM colour bar signal synchronization by 1.1µs. (See Fig. 1) (Note 13) The sync signal at pin 27 must lag the PAL colour bar signal synchronization by 1.1µs. (See Fig. 6) 100% S15 S27 LA7358 TBGW TBGB 1V Fig.4 BGP timing ...
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... SANYO Semiconductor 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 November, 2006. Specifications and information herein are subject to change without notice. LA7358 PS No.A0638-17/17 ...