FM/AM Radio
Description
/BS is a one-chip FM/AM radio IC designed for radio-cassette tape recorders.
Features
• Small number of peripheral components.
• Low current consumption VCC=3 V
For FM : ID=5.8 mA Typ.
For AM : ID=4.7 mA Typ.
• Built-in FM/AM select switch.
• Large output of AF amplifier. VCC=6 V, EIAJ output=500 mW Typ. when load impedance 8 Ω
Function
FM section
• RF amplifier, Mixer and OSCincorporating AFC variable capacitor.
• IF amplifier
• Quadrature detection
• Tuning LED driver
AM section
• RF amplifier, Mixer and OSC with RF AGC
• IF amplifier with IF AGC
• Detector
• Tuning LED driver AF section
• Electronic volume control
• FM muting
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