XR2211 Datasheet | Exar

FEATURES D Wide Frequency Range, 0.01Hz to 300k Hz D Wide Supply Voltage Range, 4.5V to 20V D HCMOS/TTL/Logic patibility D FSK Demodulation, with Carrier Detection D Wide Dynamic Range, 10m V to 3V rms D Adjustable Tracking Range, +1% to 80% D Excellent Temp. Stability, +50ppm/°C, max. APPLICATIONS D Caller Identification Delivery D FSK Demodulation D Data Synchronization D Tone Decoding D FM Detection D Carrier Detection GENERAL DESCRIPTION The XR-2211 is a monolithic phase-locked loop (PLL) system especially designed for data munications 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 300k Hz. It can acmodate analog signals between 10m V 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 parator which provides FSK demodulation. External ponents 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-2211 is available in 14 pin packages specified for military and industrial temperature ranges. ORDERING INFORMATION Part No. XR-2211M XR-2211N XR-2211P XR-2211ID Package 14 Pin CDIP (0.300”) 14 Pin CDIP (0.300”) 14 Pin PDIP (0.300”) 14 Lead SOIC (Jedec, 0.150”) Operating Temperature Range -55°C to +125°C -40°C to +85°C -40°C to +85°C -40°C to +85°C Rev. 3.01 E1992 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z FAX (510) 668-7017 1 XR-2211 BLOCK DIAGRAM VCC 1 GND 4 NC 9 Pre Amplifier INP 2 Loop q-Det Lock Detect parator 11 3 LDO LDF TIM C1 VCO TIM C2 TIM R VREF P I 13 12 Internal 10 8 VREF Reference FSK p Quad q-Det LDOQ LDOQN Figure 1. XR-2211 Block Diagram Rev. 3.01 2 XR-2211 PIN...