LA70020 Sanyo Semiconductor Corporation, LA70020 Datasheet
LA70020
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LA70020 Summary of contents
Page 1
... They include built-in automatic gain control circuits. • The LA70020, encapsulated in DIP package, can be mounted at the right end of the LA70001 and LA70011 sockets. The LA70020M lacks this flexibility because its MFP package has a different pin pitch. ...
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... CH4 Crosstalk SP Crosstalk EP Output DC offset Envelope detector output pin voltage Envelope detector output pin voltage SP Envelope detector output pin voltage EP Comparator output voltage SW-Tr on resistance during playback Trick threshold level LA70020, 70020M Symbol Conditions I Current flowing into pin 13 CCP mVp- MHz ...
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... REC MUTE threshold level REC PB threshold level Notes:* Before measuring the items under Playback Mode, input 5.0 V trigger pulse to T11 (H-SYNC), the pin from which the LA70020 takes its T9 (HA) control switch timing. * The resistance between pins 19 and 20 must be accurate to within 1.0%. ...
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... REC AGC AMP cross modulation relative level for 0.4-MHz component REC AGC AMP cross modulation relative level for 0.9-MHz component REC MUTE threshold level REC PB threshold level Note : These are voltage application points. LA70020, 70020M Symbol Conditions HI Current flowing into pin 36 CCP HG ...
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... Standard DC Voltage (V) PB HiFi 1 PB-FM-OUT REC 2 HiFi 31 GND PB HiFi 3 REC-FM-IN REC PB HiFi 4 REC-AGC-Filt REC PB HiFi 5 REC-CURRENT- ADJ REC HiFi 6 RF-SW (REC-MUTE) LA70020, 70020M Equivalent Circuit 2.6 4.0 0 3.0 0 1.2 0.7 1.5 Notes SW30 MUTE ON 3.2 V Hch OFF 1.0 Lch Continued on next page. No. 5711-5/13 ...
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... Continued from preceding page. Pin Number Pin Name Standard DC Voltage (V) 7 TRICK-H H: min. 4 max. 0 COMP-OUT REC 9 HA (EP/SP) 10 SW30 11 H-SYNC LA70020, 70020M Equivalent Circuit Open Notes Trick1 3.0 V NORMAL 1.0 V Trick2 EP > SP ENV High EP 1 Hch 1.0 V Lch SYNC H 1 Continued on next page. ...
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... Continued from preceding page. Pin Number Pin Name Standard DC Voltage (V) See relevant PB documents. 12 ENVDET-OUT REC PB 13 PB-OUT REC 14 GND REC-Y-IN REC PB 16 REC-C-IN REC 17 REC/MUTE/PB LA70020, 70020M Equivalent Circuit 0 1 3.7 0 3.7 Notes REC 3.0 V REC MUTE 1 Continued on next page. No. 5711-7/13 ...
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... Pin Name Standard DC Voltage (V) PB REC-CURRENT- 18 ADJ2 REC REC-CURRENT- 20 ADJ1 REC PB 21 REC-AGC-FILT REC H-IN REC PB 23 REC SP OUT 28 EP OUT REC LA70020, 70020M Equivalent Circuit 2.5 V 2.5 V 5.0 4.5 0 1.6 2.1 4.1 2.1 4.1 Notes Continued on next page. No. 5711-8/13 ...
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... HiFi 33 REC-OUT REC HiFi 36 5 Usage Notes Control Pin Logic HiFi RF-SW, REC-MUTE : Pin 6 LA70020, 70020M Equivalent Circuit 0 2.5 2.1 4.1 2.1 4.1 During playback Pin 6 level - DC < 1.0 V: Lch Pin 6 level - DC > 1.0 V: Hch During recording Pin 6 level - DC < 3.0 V: Mute off Pin 6 level - DC > ...
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... HA-SW (EP/SP mode switch): Pin 9 Video Synchronization of HA Switching Timing during Playback with H-SYNC Signal During playback, the LA70020’s video circuits synchronize the HA-SW switching timing shown in the following figure with the H-SYNC signal from pin 11. (Other EP/SP switching takes place in real time.) The hi-fi playback amplifier’ ...
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... Recording: — Serves as gate pulse for REC-AGC-AMP SYNC unit REC/REC-MUTE/PB Switching: Pin 17 Envelope Detector Characteristic: Pin 12 The LA70020 includes a built-in playback signal envelope detector circuit for use in automating tracking adjustment. Pin 12 level - detector DC level (V) LA70020, 70020M Pin 11 level - DC > 1.5 V: H-SYNC interval Envelope detector voltage characteristic EP, with 18-k< ...
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... Video REC AMP Gain Control The LA70020 eliminates recording current adjustment by adding an automatic gain control circuit to the recording amplifier also possible to change the recording current with the following methods. REC-CURRENT-ADJ2 Open The internal bias forces the DC level at pin 18 to 1/2 V recording current. ...
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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 February, 1998. Specifications and information herein are subject to change without notice. LA70020, 70020M PS No. 5711-13/13 ...