Overview
The AD807A-155BRZRL, produced by Analog Devices Inc., is a highly integrated, low-power, post-amplifier and clock and data recovery IC designed for 155 Mbps NRZ data applications. This device is part of the AD807 series and is specifically tailored for use in fiber optic receivers, such as those in SONET OC-3 or SDH STM-1 systems. It combines the functions of data quantization, signal level detection, clock recovery, and data retiming, making it an essential component for reliable and efficient data transmission over optical fibers.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3 V | - | 5 V | V |
| Operating Supply Current | - | 39.5 mA | - | mA |
| Power Dissipation | - | 170 mW | - | mW |
| Minimum Operating Temperature | -40°C | - | - | °C |
| Maximum Operating Temperature | - | - | 85°C | °C |
| Package / Case | - | - | SOIC-16 | - |
| Nominal Center Frequency | - | 155.52 MHz | - | MHz |
| Jitter (RMS) | - | 2.0 degrees | - | degrees |
Key Features
- Data Quantization and Retiming: The AD807A-155BRZRL quantizes the input signal and retimes the data to ensure accurate and synchronized data transmission.
- Signal Level Detection: The device includes a signal level detect circuit that indicates when the input signal level falls below a user-adjustable threshold, preventing chatter at the signal level detect output.
- Clock Recovery: The phase-locked loop (PLL) acquires frequency and phase lock on input data without requiring external components like crystals or SAW filters, ensuring reliable clock recovery.
- Low Jitter and Noise: The device features a low jitter of 2.0 degrees RMS and uses a fully differential signal architecture, Power Supply Rejection Ratio circuitry, and a dielectrically isolated process to minimize noise and extraneous signal interference.
- Low Power Consumption: The AD807A-155BRZRL operates at a low power consumption of 170 mW, making it suitable for power-sensitive applications.
Applications
- Fiber Optic Receivers: The AD807A-155BRZRL is designed for use in SONET OC-3 or SDH STM-1 fiber optic receivers, providing a complete solution for data quantization, clock recovery, and data retiming.
- Telecommunications: It is ideal for telecommunications systems requiring reliable and high-speed data transmission over optical fibers.
- Networking and Automation: The device can be used in various networking and automation systems where precise clock recovery and low jitter are critical.
Q & A
- What is the primary function of the AD807A-155BRZRL?
The primary function of the AD807A-155BRZRL is to provide data quantization, signal level detection, clock recovery, and data retiming for 155 Mbps NRZ data in fiber optic receivers.
- What is the nominal center frequency of the AD807A-155BRZRL?
The nominal center frequency of the AD807A-155BRZRL is 155.52 MHz.
- How does the AD807A-155BRZRL achieve clock recovery?
The AD807A-155BRZRL achieves clock recovery through a phase-locked loop (PLL) that acquires frequency and phase lock on input data without requiring external components.
- What is the jitter performance of the AD807A-155BRZRL?
The AD807A-155BRZRL has a jitter performance of 2.0 degrees RMS.
- What is the power consumption of the AD807A-155BRZRL?
The AD807A-155BRZRL operates at a power consumption of 170 mW.
- What is the operating temperature range of the AD807A-155BRZRL?
The operating temperature range of the AD807A-155BRZRL is from -40°C to 85°C.
- What package type is the AD807A-155BRZRL available in?
The AD807A-155BRZRL is available in a 16-Lead SOIC package.
- How does the signal level detect circuit work?
The signal level detect circuit indicates when the input signal level falls below a user-adjustable threshold, set with a single external resistor, and includes a 3 dB optical hysteresis to prevent chatter.
- What are some typical applications of the AD807A-155BRZRL?
The AD807A-155BRZRL is typically used in fiber optic receivers, telecommunications systems, and various networking and automation systems.
- What are the key benefits of using the AD807A-155BRZRL?
The key benefits include low power consumption, low jitter, reliable clock recovery, and a fully integrated solution for data quantization and retiming.
