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XR-2211A
...the analog plus company
TM
FSK Demodulator/
Tone Decoder
Rev. 1.04
1995
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 (510) 668-7000 FAX (510) 668-7017
1
June 1997–3
FEATURES
Wide Frequency Range, 0.01Hz to 300kHz
Wide Supply Voltage Range, 4.5V to 20V
HCMOS/TTL/Logic Compatibility
FSK Demodulation, with Carrier Detection
Wide Dynamic Range, 10mV to 3V rms
Adjustable Tracking Range (+
1% to 80%)
Excellent Temp. Stability, 100 ppm/°C, typ.
APPLICATIONS
Caller Identification Delivery
FSK Demodulation
Data Synchronization
Tone Decoding
FM Detection
Carrier Detection
GENERAL DESCRIPTION
The XR-2211A is a monolithic phase-locked loop (PLL)
system especially designed for data communications
applications. It is particularly suited for FSK modem
applications. It operates over a wide supply voltage range
of 4.5 to 20V and a wide frequency range of 0.01Hz to
300kHz. It can accommodate analog signals between
10mV and 3V, and can interface with conventional DTL,
TTL, and ECL logic families. The circuit consists of a basic
PLL for tracking an input signal within the pass band, a
quadrature phase detector which provides carrier
detection, and an FSK voltage comparator which provides
FSK demodulation. External components are used to
independently set center frequency, bandwidth, and output
delay. An internal voltage reference proportional to the
power supply is provided at an output pin.
The XR-2211A is available in 14 pin packages specified
for commercial temperature ranges.
ORDERING INFORMATION
Part No. Package
Operating
Temperature Range
XR-2211ACP 14 Lead PDIP (0.300”) 0°C to +70°C
XR-2211ACD 14 Lead SOIC (Jedec, 0.150”) 0°C to +70°C
