Monolithic Linear IC LA7415 No. 5647 VHS VCR Playback Head and Record Amplifiers Overview Package Dimension The LA7415 is a record and playback amplifier IC for VHS format VCR decks. In combination with a Sanyo LC7420 or LA7430 Series video signal processing IC, the LA7415 can provide an adjustment-free Y/C record current. unit: mm 3061-DIP30S [LA7415] Features • Record amplifier: Provides stable recording characteristics using a fixed-current drive technique that is resistant to load variations. • REC-AMP: Includes a built-in AGC circuit. • Can use the same printed circuit board as the LA7411. SANYO: DIP30S Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol Conditions Ratings VCC max Allowable power dissipation Pd max Ta ≤ 65 °C Unit 7.0 V 650 W Operating temperature Topr –10 to +65 °C Storage temperature Tstg –40 to +150 °C Operating Conditions at Ta = 25°C Parameter Supply voltage Symbol Conditions Ratings VCC Operating voltage range VCCop Unit 5.0 V 4.8 to 5.5 V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 43097HA(OA) No. 5647-1/12 LA7415 Electrical Characteristics at Ta = 25°C Ratings Parameter Symbol Conditions Input Output T15: 5.0 V, T13: OPEN, T7: OPEN [Playback Mode] Current drain ICCP SP L Voltage gain T2 Pin 15 influx current CH1 VGP1 T20A T10A SP H CH2 VGP2 T23A T10A CH3 VGP3 T27A T10A EP H CH4 VGP4 T30A T10A EP L VIN = 38 mVp-p, f = 1 MHz TRCK T4 T5 HA SW30 MUTE min typ Unit max OPEN 0 0 24 30 36 OPEN 0 0 54.0 57.0 60.0 mA dB OPEN 0 2.5 54.0 57.0 60.0 dB OPEN 5.0 0 56.0 59.0 62.0 dB OPEN 5.0 2.5 56.0 59.0 62.0 dB Voltage gain differential 1 ∆VGP1 – – VGP1 – VGP2 – – – –1 0 +1 dB Voltage gain differential 2 ∆VGP2 – – VGP3 – VGP4 – – – –1 0 +1 dB Inter-mode gain difference ∆VGP EP-SP – – VGP3 – VGP1 – – – 1 2 3 dB OPEN 0 0 – 1.1 1.5 µVrms 1.5 µVrms CH1 VNIN1 T20A T10A Equivalent input CH2 VNIN2 T23A T10A noise voltage CH3 VNIN3 T27A T10A CH4 VNIN4 T30A T10A CH1 ∆Vfp1 T20A T10A Frequency CH2 ∆Vfp2 T23A T10A characteristics CH3 ∆Vfp3 T27A T10A CH4 ∆Vfp4 T30A T10A CH1 VHDP1 T20A T10A Second harmonic CH2 VHDP2 T23A T10A distortion CH3 VHDP3 T27A T10A CH4 VHDP4 T30A T10A After the 1.1-MHz LPF VOUT VGP1, 2, 3, 4 VIN = 38 mVp-p f = 7 MHz VOUT VGP1, 2, 3, 4 output ratio OPEN 0 2.5 – 1.1 OPEN 5.0 0 – 1.1 1.5 µVrms OPEN 5.0 2.5 – 1.1 1.5 µVrms OPEN 0 0 –2.5 0 – dB OPEN 0 2.5 –2.5 0 – dB OPEN 5.0 0 –2.5 0 – dB OPEN 5.0 2.5 –2.5 0 – dB OPEN VIN = 38 mVp-p OPEN f = 4 MHz (8-MHz component)/(4-MHz component) OPEN output ratio OPEN 0 0 – –40 –35 dB 0 2.5 – –40 –35 dB 5.0 0 – –40 –35 dB 5.0 2.5 – –40 –35 dB CH1 VOMP1 T20A T10A Maximum CH2 VOMP2 T23A T10A output level CH3 VOMP3 T27A T10A CH4 VOMP4 T30A T10A T23A T10A OPEN 0 0 – –40 –35 dB CH1 VCR1 T27A T10A OPEN 0 0 – –40 –35 dB OPEN 0 0 – –40 –35 dB OPEN 0 2.5 – –40 –35 dB OPEN 0 2.5 – –40 –35 dB Crosstalk SP T30A T10A (Note 1) T20A T10A CH2 CH3 VCR2 VCR3 T27A T10A harmonic in the output is –30 dB VIN = 38 mVp-p, f = 4 MHz VOUT VGP1, 2 offset ∆VODC3 ∆VODC4 ∆VODC5 ∆VODC6 1.2 – Vp-p 1.0 1.2 – Vp-p OPEN 5.0 0 1.0 1.2 – Vp-p OPEN 5.0 2.5 1.0 1.2 – Vp-p 0 2.5 – –40 –35 dB 5.0 0 – –40 –35 dB T27A T10A OPEN 5.0 0 – –40 –35 dB OPEN 5.0 0 – –40 –35 dB OPEN 5.0 2.5 – –40 –35 dB dB T27A T10A VI = 38 mVp-p, f = 4 MHz VOUT VGP3, 4 T30A T10A Output DC 1.0 2.5 OPEN T20A T10A ∆VODC2 0 0 OPEN (Note 1) ∆VODC1 0 OPEN T23A T10A T30A T10A VCR4 The output level when the third OPEN T30A T10A Crosstalk EP CH4 f = 1 MHz – – – – – – T10 T10 T10 T10 T10 T10 CH1-CH2 CH3-CH4 CH1-CH3 CH2-CH4 CH1-CH4 CH2-CH3 OPEN 5.0 2.5 – –40 –35 OPEN 5.0 2.5 – –40 –35 dB OPEN – 0 –100 0 +100 mV OPEN 0 2.5 –100 0 +100 mV OPEN – 0 –100 0 +100 mV OPEN 5.0 2.5 –100 0 +100 mV OPEN 0 – –100 0 +100 mV OPEN 5.0 0 –100 0 +100 mV OPEN 0 – –100 0 +100 mV OPEN 5.0 2.5 –100 0 +100 mV OPEN 0 0 –100 0 +100 mV OPEN 5.0 2.5 –100 0 +100 mV OPEN 0 2.5 –100 0 +100 mV OPEN 5.0 0 –100 0 +100 mV Continued on the next page. Note 1. With the input inductor L (8.2 µH) shorted. 2. Since the T4 (HA) control switch timing is synchronized with T6 (H-Sync), a T6 trigger (0 - 5 V - 0) must be input before measuring each of these items. No. 5647-2/12 LA7415 Continued from the preceding page. Ratings Parameter Symbol Conditions Input Output Enveloped detector output pin voltage VENV T2 T4 T5 HA SW30 MUTE min typ Unit max T15: 5.0 V, T13: OPEN, T7: OPEN TRCK T8 The T8 DC voltage with no input OPEN 0 0 0 0.4 0.8 V Enveloped detector voltage SP1 VENVSP1 T20A T8 f = 4 MHz T10A: Adjusted to 300 mV p-p OPEN 0 0 2.1 2.6 3.1 V Enveloped detector voltage SP2 VENVSP2 T20A T8 f = 4 MHz T10A: Adjusted to 600 mV p-p OPEN 0 0 4.5 4.8 5.0 V Enveloped detector voltage EP1 VENVEP1 T27A T8 f = 4 MHz T10A: Adjusted to 200 mV p-p OPEN 5.0 0 2.0 2.6 3.0 V Enveloped detector voltage EP2 VENVEP2 T27A T8 f = 4 MHz T10A: Adjusted to 450 mV p-p OPEN 5.0 0 4.5 4.8 5.0 V Comparator output voltage 1 VCOMP1 T20A T3 f = 4 MHz, VIN = 38 mVp-p The T3 DC voltage 5.0 0 0 – 0.4 0.7 V Comparator output voltage 2 VCOMP2 T20A T3 f = 4 MHz, VIN = 38 mVp-p The T3 DC voltage 5.0 5.0 0 4.5 4.8 – V – – – – 4.0 6.0 Ω – – – – 4.0 6.0 Ω OPEN 5.0 – – 4.0 6.0 OPEN 5.0 – – 4.0 6.0 OPEN 0 – – 4.0 6.0 OPEN 0 – – 4.0 6.0 RPON17 P-17 RPON18 P-18 RPON21 P-21 RPON24 P-24 RPON26 P-26 RPON29 P-29 TR1-1 T2 Normal → Trick1 * – – 3.2 – 5.0 TR1-2 T2 Trick1 → Normal * – – 1.2 – 2.8 V Trick 2 threshold level TR2-1 T2 Normal → Trick2 * – – 0.0 – 0.8 V TR2-2 T2 Trick2 → Normal * – – 1.2 – 2.8 V HAPB threshold level HAP-1 T4 SP → EP – * – 1.8 – 5.0 V Playback mode on switching transistor on resistance Playback mode mode switching transistor on resistance Trick 1 threshold level SW30 threshold level V EP → SP – * – 0.0 – 1.4 V Lch → Hch – – * 1.2 – 5.0 V SW30-2 T4 Hch → Lch – – * 0.0 – 0.8 V T2 T4 T5 REC Adj2 HA SW30 MUTE 66 mA T15: 5.0 V, T2: OPEN, T6: 5.0 V, T7: 5.0 V ICCR T11A T21A VREP T11A T26A ∆VGR – – ∆VAGC1-SP T11A T21A ∆VAGC1-EP T11A T26A ∆VAGC2-SP T11A T21A ∆VAGC2-EP T11A T26A ∆VFRS T11A T21A ∆VFRE T11A T26A AGC amplifier second ∆VHDRS T11A T21A harmonic distortion ∆VHDRE T11A T21A AGC amplifier maximum output level ∆VOMRS T11A T21A ∆VOMRE T11A T26A ∆VMRS T11A T21A ∆VMRE T11A T26A AGC amplifier muting attenuation Ω T4 VRSP AGC amplifier frequency characteristics Ω T5 Current drain AGC amplifier control characteristics 2 Ω Ω HAP-2 AGC amplifier output level AGC amplifier control characteristics 1 The difference in the DC measurement for 1-mA and 2-mA influx currents SW30-1 [Record Mode] Inter-mode gain difference The difference in the DC measurement for 1-mA and 2-mA influx currents The pin 15 influx current OPEN 0 0 44 55 f = 4 MHz VIN = 200 mVp-p OPEN 0 0 147 156 165 mVp-p OPEN 5.0 0 116 123 130 mVp-p – – – 1.30 2.05 2.80 dB dB VRSP/VREP f = 4 MHz, VIN = 400 mVp-p The output level/VRSP, EP ratio f = 4 MHz, VIN = 100 mVp-p The output level/VRSP, EP ratio OPEN 0 0 – 0.5 1.0 OPEN 5.0 0 – 0.5 1.0 dB OPEN 0 0 –1.0 –0.5 – dB OPEN 5.0 0 –1.0 –0.5 – dB f = 1 MHz, 7 MHz, VIN = 100 mVp-p The 7 MHz/1 MHz output ratio OPEN 0 0 –1.0 –0.0 +1.0 dB OPEN 5.0 0 –1.0 –0.0 +1.0 dB f = 4 MHz, VIN = 200 mVp-p The (8 MHz component)/(4 MHz component) output ratio OPEN 0 0 – –45 –40 dB OPEN 5.0 0 – –45 –40 dB Adj. 0 0 20 22 – mAp-p Adj. 5.0 0 20 22 – mAp-p f = 4 MHz, The output level for which the second harmonic is –35 dB f = 4 MHz, VI = 200 mVp-p The output level/VRSP, EP ratio OPEN 0 5.0 – –45 –40 dB OPEN 5.0 5.0 – –45 –40 dB Continued on the next page. No. 5647-3/12 LA7415 Continued from the preceding page. Ratings Parameter Symbol Conditions Input Output [Record Mode] AGC amplifier relative cross modulation level ∆VCYS T10A T21A ∆VCYE T11A T26A min typ max Unit T2 T4 T5 T15: 5.0 V, T2: OPEN, T6: 5.0 V, T7: 5.0 V REC Adj2 HA SW30 MUTE T10A: f = 629 kHz, VIN = 360 mVp-p T11A: f = 4 MHz, VIN = 200 mVp-p (4 MHz ±629 kHz)/(4 MHz) output ratio OPEN 0 0 – –45 –40 dB OPEN 5.0 0 – –45 –40 dB RRON17 P-17 OPEN 5.0 – – 4.0 6.0 RRON18 P-18 OPEN 0 – – 4.0 6.0 RRON21 P-21 OPEN 5.0 – – 4.0 6.0 Ω RRON24 P-24 OPEN 5.0 – – 4.0 6.0 Ω RRON26 P-26 OPEN 0 – – 4.0 6.0 Ω RRON29 P-29 OPEN 0 – – 4.0 6.0 Ω HA record threshold level HAR-1 T4 SP → EP – * – 1.8 – 5.0 V HAR-2 T4 EP → SP – * – 0.0 – 1.4 V Record MUTE threshold level MUTE-1 T5 MUTE OFF → ON – – * 3.4 – 5.0 V MUTE-2 T5 MUTE ON → OFF – – * 0.0 – 3.0 V T7: control voltage – – – 2.2 – 5.0 V Record mode mode switching transistor on resistance Record/playback threshold level SW REC/PB The difference in the DC measurement for 1-mA and 2-mA influx currents Ω Ω Notes 3. Measure with a DC voltage of about 1.8 V applied to the AGC detector filter pin (pin 12) and with the AGC amplifier gain fixed. 4. Adjust the output level by applying a DC voltage to T13 (REC CUR.Adj2) 5. Use a resistor with a ±1.0% tolerance between pins 14 and 15. Usage Notes 1. Control Pin Logic RF SW, REC MUTE: pin 5 Playback mode If the pin 5 DC voltage is < 1.0 V: Lch If the pin 5 DC voltage is > 1.0 V: Hch Record mode If the pin 5 DC voltage is < 3.2 V: Muting will be off If the pin 5 DC voltage is > 3.2 V: Muting will be on Record/playback mode switching: pin 7 If the pin 7 DC voltage is < 2.0 V: Playback mode If the pin 7 DC voltage is > 2.0 V: Record mode No. 5647-4/12 LA7415 H.Sync input: pin 6 If the pin 6 DC voltage is > 1.5 V: Currently the signal is in an H.Sync period *: Playback mode: Used for switching timing in SP search. Record mode: Used as the record amplifier AGC synchronization block gate pulse. (4) Playback trick mode switching: pin 2 If the pin 2 DC voltage is > 3.0 V: Trick 1 If the pin 2 DC voltage is < 1.0 V: Trick 2 If the pin 2 DC voltage is > 1.0 V and < 3.0 V: Normal *: Normal mode: Two channels controlled (EP/SP) by pin 4: ON Envelope comparator: OFF In trick 1 and 2 modes: All 4 channels: ON Envelope comparator: ON *: The difference between trick 1 and trick 2 is that: or Trick1 Envelope comparator (pin 3) output → Servo (microcontroller) → Pin 4 HA →SP search is performed in the [HA switch] path. HA switch Trick2 Envelope comparator output → SP search is performed in the [HA switch] path. (See the block diagram.) HA switch HA SW (EP/SP mode switching): pin 4 If the pin 4 DC voltage is < 1.6 V: SP mode If the pin 4 DC voltage is > 1.6 V: EP mode *: H.Sync synchronization for HA switching: The switching of the HA SW circuit show in the figure at the right is synchronized with the H.Sync signal input to pin 6. (Other EP/SP switching is performed in real time.) Comp.OUT (pin 3) If the EP envelope is > SP: High (4.0 V or higher) If the EP envelope is < SP: Low (0.7 V or lower) No. 5647-5/12 LA7415 2. Envelope Detector Characteristics: pin 8 The LA6529M includes an on-chip playback signal envelope detector circuit used to achieve automatic tracking adjustment with essentially linear characteristics. Envelope Detector Characteristics (design target values) f = 4 MHz Pin 8 + external 18 kΩ resistor SP + external 18 kΩ resistor Pin 10 playback amplifier output level (mVp-p) 3. Record Amplifier Gain Control The LA6529M achieves an adjustment-free record current by adding an AGC circuit in the record amplifier block. The record current can be modified using the circuit shown below. (1) REC Current.Adj2: When open The pin 13 DC level is set to 1/2 VCC (about 2.5 V) by an internal bias and the record current is determined by RO1. Design values: RO1: 1.5 kΩ = 15.6 mAp-p (SP) (per channel) = 12.3 mAp-p (EP) (2) REC Current.Adj2: When used The value determined by RO1 can be adjusted from –6.0 dB to +3.5 dB by applying a control DC level (1 to 4 V) to pin 13. (Reference) The circuit below can be used to apply the DC control level to pin 13. This allows 9 modes (1 to 4 V) to be applied. Design values Microcontroller No. 5647-6/12 LA7415 Pin Functions Pin No. Pin Standard DC voltage (V) PB 2.0 REC 3.6 Pin circuit Notes 1 19 PB Amp 22 Second filter 28 3.0 V 2 TRICK-H 1.0 V Trick1 NORMAL Trick2 High: 4.5 V or higher PB Low: 0.7 V or lower 3 COMP-OUT EP > SP ENV: High REC 4 HA (EP/SP) OPEN 1.6 V EP SP SW30 REC MUTE 5 Hch RF-SW (REC-MUTE) 1.0 (V) Lch ON 3.2 (V) OFF Sync 6 H-SYNC 1.5 V H L Continued on the next page. No. 5647-7/12 LA7415 Continued from the preceding page. Pin No. Pin Standard DC voltage (V) PB 7 Pin circuit Notes 0 REC REC-H 2.0 V REC 5 PB in a separate PB Described document. 8 9 ENV DET OUT REC 0 PB-OUT PB 2.3 REC-C-IN REC 3.6 REC-Y-IN REC 3.6 PB 1.6 GND 10 11 12 13 AGC-FLT REC 1.6 PB 2.5 4 V: +3.5 dB 2.5 V: ±0 dB (OPEN) 1 V: –6 dB REC-CURRENT ADJ2 REC 2.5 Continued on the next page. No. 5647-8/12 LA7415 Continued from the preceding page. Pin No. 14 15 16 Pin Standard DC voltage (V) PB 4.5 REC 5.0 PB 2.5 REC 1.7 PB 0 REC 4.2 PB 0.7 REC 0 PB 0 REC 4.2 Pin circuit Notes REC-CURRENT ADJ1 VCC REC-BIAS 17 REC-SP OUT 18 REC-EP OUT 20 SP-L-IN 23 SP-H-IN 27 EP-L-IN 30 EP-H-IN 21 SP-L-SW 24 SP-H-SW 26 EP-L-SW 29 EP-H-SW 25 PRE-GND No. 5647-9/12 LA7415 Block Diagram No. 5647-10/12 LA7415 Test Circuit No. 5647-11/12 LA7415 ■ 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. ■ Anyone purchasing any products described or contained herein for an above-mentioned use shall: ➀ 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: ➁ 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. ■ 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 April, 1997. Specifications and information herein are subject to change without notice. No. 5647-12/12