Overview
The ADN2813ACPZ, produced by Analog Devices Inc., is a highly integrated clock and data recovery integrated circuit (IC) designed for continuous data rates ranging from 10 Mb/s to 1.25 Gb/s. This device is particularly suited for applications requiring robust clock and data recovery, such as in fiber optic receivers. It automatically locks to all data rates without the need for an external reference clock or programming, making it versatile and efficient. The ADN2813 can be used in conjunction with a PIN diode and a TIA preamplifier to implement a low-cost, low-power fiber optic receiver.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Data Rate | 10 Mb/s | - | 1.25 Gb/s | - |
| Power Supply Voltage | 3.0 V | 3.3 V | 3.6 V | V |
| Power Supply Current (Locked to 1.25 Gb/s) | 139 mA | 155 mA | - | mA |
| Operating Temperature Range | -40°C | - | 85°C | °C |
| Quantizer Sensitivity | - | 3.3 mV | - | mV |
| LOS Detect Range | 2.3 mV | - | 19 mV | mV |
| Package Type | - | - | 32-Lead LFCSP (5mm x 5mm) | - |
Key Features
- Automatically locks to all data rates from 10 Mb/s to 1.25 Gb/s without an external reference clock or programming.
- Exceeds SONET requirements for jitter transfer, generation, and tolerance.
- Integrated limiting amplifier and quantizer with adjustable slice level (±95 mV).
- Loss-of-signal (LOS) detect circuit with adjustable threshold and hysteresis to prevent chatter.
- I2C interface to access optional features.
- Single-supply operation: 3.3 V, low power consumption (typ. 450 mW).
- Compact 5 mm x 5 mm 32-lead LFCSP package.
Applications
- SONET OC-1, OC-3, OC-12 and associated FEC rates.
- Fibre Channel and Gigabit Ethernet (GbE).
- High-Definition TVs (HDTVs).
- WDM transponders and regenerators/repeaters.
- Test equipment and broadband cross-connects and routers).
Q & A
- What is the data rate range supported by the ADN2813?
The ADN2813 supports continuous data rates from 10 Mb/s to 1.25 Gb/s.
- Does the ADN2813 require an external reference clock?
No, the ADN2813 automatically locks to all data rates without the need for an external reference clock or programming).
- What are the key features of the ADN2813's clock recovery mechanism?
The ADN2813 features a patented clock recovery architecture with a delay- and phase-locked loop circuit, tracking both high and low frequency components of input jitter).
- How does the ADN2813 handle loss-of-signal detection?
The ADN2813 includes a loss-of-signal (LOS) detect circuit with an adjustable threshold and hysteresis to prevent chatter at the output).
- What is the typical power consumption of the ADN2813?
The typical power consumption of the ADN2813 is 450 mW when locked to 1.25 Gb/s).
- What is the operating temperature range of the ADN2813?
The operating temperature range of the ADN2813 is from -40°C to +85°C).
- What package type is the ADN2813 available in?
The ADN2813 is available in a 32-lead LFCSP (5mm x 5mm) package).
- What are some common applications of the ADN2813?
The ADN2813 is commonly used in SONET, Fibre Channel, GbE, HDTVs, WDM transponders, regenerators/repeaters, and test equipment).
- Does the ADN2813 meet SONET jitter requirements?
Yes, the ADN2813 exceeds SONET requirements for jitter transfer, generation, and tolerance).
- How does the ADN2813's I2C interface function?
The I2C interface allows access to optional features of the ADN2813).
