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S1T8515A - FM IF RECEIVER FOR FLEX PAGER

Description

Pin No 1 2 3 4 5 6 7 8 9 10 11 12 Symbol OSCI OSCO MO VCC LI LD FSKR1 QD C1 C2 C3 FIL VAR Description Oscillator input (Base).

The oscillator is an internally biased colpitts type.

Oscillator output (Emitter).

Features

  • Internal A/D converter for 4 level FSK (2-bit ADC) High transmission rate: 6400bps (Max. ) Operating voltage range: VCC1 = 1.1 ~ 4.0V Typical supply current: 1.5mA at 1.4V Low battery detection circuit (alarm function): 1.05V Mixer operating frequency: 10 ~ 50MHz Package type: 24-SSOP (0.65mm).

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Full PDF Text Transcription

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FM IF RECEIVER FOR FLEX PAGER S1T8515A INTRODUCTION The S1T8515A is a designed for FM detection on the FLEX pager set. It consists of an Oscillator, Mixer, Limiting IF Amp. Quadrature Detector, Regulator, RSSI (Received Signal Strength Indicator), Bit Rate Filter, and a 2-level / 4-level FSK comparator. It has a 24-SSOP (0.65mm)Surface Mount Package. 24−SSOP−BD209 FEATURES • • • • • • • Internal A/D converter for 4 level FSK (2-bit ADC) High transmission rate: 6400bps (Max.) Operating voltage range: VCC1 = 1.1 ~ 4.0V Typical supply current: 1.5mA at 1.4V Low battery detection circuit (alarm function): 1.05V Mixer operating frequency: 10 ~ 50MHz Package type: 24-SSOP (0.
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