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LA1650 Datasheet(PDF) 6 Page - Sanyo Semicon Device |
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LA1650 Datasheet(HTML) 6 Page - Sanyo Semicon Device |
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6 / 14 page  No. 6310-6/14 LA1650, 1650C Pin Functions (VCC = 1.5 V) Pin No. Function No-signal voltage (V) Notes Equivalent circuit 1.5 The input impedance, Zi, is 450 k Ω. Connect the antenna coil between pins 1 and 4. Recommended coil: ACL-80 (Sumida Electronics) 1 Amplifier (1) input 4 1 A12759 0.6 0.6 The AGC operating speed is determined by the capacitor connected between pin 3 and ground. 2 3 AGC (1) input AGC (2) input 3 2 17 A12760 1.5 4 VCC 1.5 This LA1650 operates normally with pin 5 at VCC. The device goes to standby mode (ICC ≤ 1 µA) when this pin is pulled to ground. 5 PON 4 5 18 17 A12761 0.7 Connect the crystal oscillator elements between pins 6 and 8, and pins 7 and 9. Recommended element: VTC- 200 (Seiko Instruments) 40 kHz, 12.5 pF 6 7 Amplifier (1) output 6 7 17 A12762 0.8 RIN = 20 kΩ 8 9 Amplifier (2) input 8 RIN RIN 17 9 A12763 Continued on next page. |
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