LA3242 Datasheet, PDF (4/12 Pages) Sanyo Semicon Device – Preamplifier for Compact Cassette Recorder Recording-only Use

Sample Application Circuit
LA3242
Note:
1. The electronic select switching level is approximately (V_CC – 0.9)/2.
2. REC amplifier NF parameters Z1 through Z3 should be selected to accommodate the recording level and frequency response
that will be required in metal/normal tape and normal/higher speed modes.
3. Z1 through Z3 may be configured with coil ‘‘L’’, capacitor ‘‘C’’, and resistor ‘‘R’’.
4. When electronic control pins 9 and 16 are at the GND level, each electronic switch is turned ON.
5. When ALC ON/OFF control pin 17 is at 1 V or less/1.5 V or greater, the ALC is turned ON/OFF, respectively (Ta = 25°C).
6. The ALC width depends on external resistor R_A.
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