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AK2364 - Two-way Radio Filterless FM Detector LSI

General Description

2nd-mixer to convert the input signal down to 450Hz.

The circuit composed of AGC and BPF, where the desired signal is amplified and spurious components included in the signal from the 2nd-mixer are eliminated.

The circuit to divide the signal from LOIN pin and supply BPF with CLK.

Key Features

  • The AK2364 includes 2nd-Mixer, AGC+BPF, PLL FM detector, noise squelch, and RSSI circuit. This device can eliminate D to G type ceramic filters, quadrature discriminator, and other external components.
  • Low operating voltage: VDD = 2.6 to 5.5 V.
  • Wide operating temperature: Ta = -40 to 85 °C.
  • Hi sensitivity: -104dBm at 12dB SINAD.
  • Built-in 2nd Mixer.
  • Local frequency: 45.9MHz, 50.4MHz, 57.6MHz (Triple of 15.3, 16.8 and 19.2MHz).
  • Built-in progra.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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[AK2364] AK2364 Two-way Radio Filterless FM Detector LSI 1. Features The AK2364 includes 2nd-Mixer, AGC+BPF, PLL FM detector, noise squelch, and RSSI circuit. This device can eliminate D to G type ceramic filters, quadrature discriminator, and other external components. • Low operating voltage: VDD = 2.6 to 5.5 V • Wide operating temperature: Ta = -40 to 85 °C • Hi sensitivity: -104dBm at 12dB SINAD • Built-in 2nd Mixer • Local frequency: 45.9MHz, 50.4MHz, 57.6MHz (Triple of 15.3, 16.8 and 19.2MHz) • Built-in programmable AGC+BPF circuits corresponding to D to G type ceramic filters • Built-in PLL FM detector • RSSI function • Built-in noise squelch circuits • Low consumption current: 7mA • Compact plastic packaging, 28-pin QFNJ （4.0 x 4.0 x 0.75mm, 0.