The XR-2211 is a monolithic phase-locked loop (PLL)system specially 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 to300kHz. It can accommodate analog signals between10mV 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 passband, a quadrature phase detector that provides carrier detection, and an FSK voltage comparator that 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.
XR2211 Pinout
XR2211 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | VCC | Positive Power Supply |
| 2 | INP | Receive Analog Input |
| 3 | LDF | Lock Detect Filter |
| 4 | GND | Ground Pin |
| 5 | LDOQN | Lock Detect Output Not Pin |
| 6 | LDOQ | Lock Detect Output Pin |
| 7 | DO | Data Output Pin |
| 8 | COMP 1 | FSK Comparator Input Pin |
| 9 | NC | No Connection |
| 10 | VREF | Internal Voltage Reference Pin |
| 11 | LDO | Loop Detect Output Pin |
| 12 | TIM R | Timing Resistor Input Pin |
| 13 | TIM C2 | Timing Capacitor Input Pin |
| 14 | TIM C1 | Timing Capacitor Input Pin |
XR2211 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 3Vrms
- Adjustable Tracking Range: +1% to 80%
- Excellent Temp. Stability: +50ppm/°C max.
Application
- Caller Identification Delivery
- FSK Demodulation
- Data Synchronization
- Tone Decoding
- FM Detection
- Carrier Detection
You can download this datasheet for XR2211 FSK Demodulator/Tone Decoder – Datasheet from the link given below:
