LA70001 Sanyo Semiconductor Corporation, LA70001 Datasheet
LA70001
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LA70001 Summary of contents
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... Ordering number : EN5709 Record/Playback Amplifiers for VHS Format VCRs Overview The LA70001 and LA70001M ICs provide record and playback amplifiers for VHS format VCRs. A system with an adjustment-free Y/C record current can be achieved by combining the LA70001/M with an LA71000M or LA71500M video signal processing IC. ...
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... Notes:Use a resistor with an accuracy of 1.0% for the resistor between pins 13 and 14. *1. This is the voltage application point *2. Here, fix the AGC amplifier gain by applying a 1.8-V DC level to the AGC detector filter pin (pin 15). *3. Here, adjust the output level by applying a DC voltage to the REC-CUR-Adj pin (pin 12). LA70001, 70001M Symbol Conditions I The pin 13 inflow current ...
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... Pin Functions Pin No. Pin name Standard DC voltage (V) 1 N (EP/SP) 4 SW30 5 H-SYNC Provided separate document. 6 ENVDET-OUT REC 0 PB 1.7 7 PB-OUT REC 2.1 8 GND 20 LA70001, 70001M Equivalent circuit EP SP Hch Lch SYNC Notes 1 Continued on next page. No. 5709-3/8 ...
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... Continued from preceding page. Pin No. Pin name Standard DC voltage (V) PB 4.0 9 REC-Y-IN REC 3.7 PB 4.0 10 REC-C-IN REC 3.7 11 REC/MUTE/ REC-CURRENT-ADJ2 REC 2 5.0 14 REC-CURRENT-ADJ1 REC 4.5 LA70001, 70001M Equivalent circuit REC REC MUTE PB Notes 3.0 V 1.0 V Continued on next page. No. 5709-4/8 ...
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... Continued from preceding page. Pin No. Pin name Standard DC voltage ( REC-AGC-FILT REC 1 REC 4 REC_SP_OUT REC 4 FILT REC 2 N LA70001, 70001M Equivalent circuit Notes No. 5709-5/8 ...
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... H.SYNC input: pin 5 In record mode: Used as the REC-AGC-AMP synchronization block gate pulse. • REC/REC-MUTE/PB switching: pin 11 Envelope detection characteristics: pin 6 The LA70001 provides a built-in playback signal envelope detection circuit so that the tracking adjustment can be made automatic. The pin 6 detected DC level (V) LA70001, 70001M GND < ...
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... Record Amplifier Gain Control The LA70001 achieves an adjustment-free record current by adding an AGC circuit in the record amplifier block. The record current can be modified using the following method. • Record current adjustment 2: When left open. Pin 12 DC level is set to 1/2 V (approximately 2 internal bias, and the record current is determined by CC Ro1 ...
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... 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 January, 1998. Specifications and information herein are subject to change without notice. LA70001, 70001M PS No. 5709-8/8 ...