SA1021 Datasheet, PDF (5/6 Pages) Silan Microelectronics Joint-stock – FM RADIO RECEIVER FOR PORTABLE SYSTEM

TEST AND APPLICATION CIRCUIT
SA1021
Fig.8: Stereo application in combination with a low voltage PLL stereo decoder (UTC7040) and a low voltage
Mono/stereo power amplifier (UTC7050).
Fig.9 test set-up; Vi=30mV; fi=76kHz; selective voltmeter at output has Ri≥1MΩ and Ci≤8pF; fo=fi.
This test set-up is to incorporate the circuit of Fig.5 for mono operation or the circuit of Fig.8 for stereo operation.
For either circuit, replace the 100µF capacitor at pin 6 with R6(100kΩ) as shown above.
SELECTIVITY
S+300=20 ^{Vo | (300KhZ - fi)}
Vo | fi
S-300=20 ^{Vo | (300KhZ + fi)}
Vo | fi
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.07.31
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