DESCRIPTION

· The BA1604 and BA1604F are tone decoder ICs utilizing a PLL system for precise frequency selection.
· Comprises a PLL circuit, detection circuit, voltage comparator circuit, and output logic drive circuit.
· Synchronizes PLL with input signal within transmission range, triggering output voltage drop and activating transistors.
· Capable of driving a load up to 100mA.
· Center frequency (f0) set by current control oscillator's mobile oscillation frequency, determined by CR connected to Pins 5 and 6.

FEATURES

· Adjustable detection bandwidth between 0 and 14%.
· Output circuit withstands up to 100mA load current, directly coupled to logic circuit.
· High stability of center frequency.
· Superior out-of-band signal and noise rejection.
· Frequency adjustable over a 20:1 range using an external resistor.
· Compatible with EXAR XR-567 and Signetics NE567.

APPLICATIONS

· Telephones.
· Data communication systems.
· Remote control systems.