LA3246 Sanyo Semiconductor Corporation, LA3246 Datasheet
LA3246
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LA3246 Summary of contents
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... Ordering number: EN 2651B Overview The LA3246 is a stereo preamplifier IC for double cassette tape playback-only use. The LA3246 is intended for use in portable radio-cassette tape recorders and tape decks. Applications . Stereo compact cassette player for playback-only use . Stereo cassette deck player Functions . Preamplifier 2, Mixing amplifier 1, Electronic switch 6 Features ...
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... V Ripple filter output current I F OUT Electronic switch ON-state resistance DC feedback resistance Input bias current Pd max – Ta Ambient temperature, Ta – °C Equivalent Circuit Block Diagram LA3246 = 6 Conditions Icco Nor/Nor speed forward Iccs Metal/High speed forward VGo VG Nor/Nor speed, NAB ...
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... CC worse capacitor is connected to pin 13. (Even if connected, the ripple can not be rejected.) 7. Extreme caution should be exercised when handling the subject to dielectric breakdown. LA3246 –0.9 0.4 s.) If the capacitor value is made less than 47 µF, the ripple rejection will get s ...
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... If a resistor of more than 500 k is connected across input pin and GND, the noise (output) caused by amp 1 and amp 2 select is liable to increase at the time of F/R switching. LA3246 must not exceed 500 k . (Reason: To minimize the variation in output DC voltage IN Unit (resistance: , capacitance ...
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... MIX = 1/2 V 1(= 1 where LA3246 1 and R 2 causes the variation in amp output DC voltage at the time of F must be made as equal as possible equal to that and ...
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... Forward/Reverse 2 Normal/Higher 2 shown above, there is a difference in the switching level at three control pins (6, 9, 15) between operation start and operation finish. . Switching level and mode at each pin (experimental value) LA3246 Clamp Voltage Operation Finish 2.4 V 3.7 V 3.1 V 3.4 V 2.4 V 3.7 V Switching level (reverse) on pin ...
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... When turning OFF: Bring the level on the CONT pin to a level less than: 1/2 V13 – 1/2 BE LA3246 Current route at clamp mode where 0 for pin 9. 1 for pins 6, 15. V13 – 0.6 [V] To turn ON the control circuit to finish the is required. Control voltage ...
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... Iccs, Icco – V Nor/High and Me/Nor SW on: Pins 6 and 15 are brought to supply voltage level. Supply voltage – Pin 12 Pin 13 Pins 4, 19 Pins 3,18 Supply voltage, V LA3246 = 0, pins 6, 9 and 15 = GND IN Supply voltage, V – 6.0 V 9.0 V 0.3 0.3 0.3 0.3 0.58 0.57 2.23 3.65 2.23 3.65 (GND) 0 (GND ...
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... Supply voltage, V – max, V MIX – CH1 only operated Supply voltage, V – LA3246 VG – V Supply voltage THD – Input voltage MIX – Supply voltage, V CT1 – V Supply voltage – – ...
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... Input frequency, f – CT6 – Input frequency, f – CT8 – Input frequency, f – LA3246 Input frequency, f Input frequency, f Input frequency Signal source resistance, Rg – CT3 – – CT5 – – CT7 – – ...
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... Ripple frequency, f – – µF or greater Capacitor for ripple filter (pin 12), Cr – µF LA3246 V Signal source resistance, Rg – VG – f Input frequency – µF or greater Capacitor for ripple filter (pin 12), Cr – µ less Reverse transfer capacitance, C – ...
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... VG – Ta Ambient temperature, Ta – °C V – Ambient temperature, Ta – °C V – Ta ODC Ambient temperature, Ta – °C LA3246 Iccs, Icco – Me/High SW on: Pins 6, 15 are brought to supply voltage level. Ambient temperature, Ta – °C V max – Ambient temperature, Ta – °C CT9 – ...
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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 December, 1997. Specifications and information herein are subject to change without notice. LA3246 No.2651-13/13 ...