Overview
The ADN2872ACPZ-R7 is a high-performance laser diode driver designed by Analog Devices Inc. This device is specifically tailored for advanced Small Form-Factor (SFF) and Small Form-Factor Pluggable (SFP) modules. It operates within a wide data rate range from 50 Mbps to 3.3 Gbps, making it versatile for various optical communication applications. The ADN2872 features dual-loop control for maintaining the average power and extinction ratio (ER), ensuring stable operation over temperature and aging variations without the need for extensive temperature calibration.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Description | 3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver |
| Package | 24-WFQFN Exposed Pad, CSP (4x4 mm) |
| Voltage - Supply | 3 V ~ 3.6 V |
| Operating Temperature | -40°C ~ 85°C |
| Number of Channels | 1 |
| Mounting Type | Surface Mount |
| Current - Bias | 100 mA |
| Current - Modulation | 90 mA |
| Data Rate | 50 Mbps to 3.3 Gbps |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Dual-loop control for maintaining average power and extinction ratio (ER), compensating for variations in laser characteristics over temperature and aging.
- Single-rate operation from 50 Mbps to 3.3 Gbps, or multirate operation from 155 Mbps to 3.3 Gbps.
- Bias and modulation current monitoring, fail alarms, and automatic laser shutdown (ALS).
- Voltage setpoint control and resistor setpoint control for setting average power and ER.
- Compatibility with Analog Devices MicroConverter family (e.g., ADuC7019, ADuC7020, ADuC7023) and limiting amplifier family (e.g., ADN2890, ADN2891, ADN2892).
- SFF-8472 digital diagnostics support.
Applications
- Multirate OC3 to OC48-FEC SFP/SFF modules.
- 1×/2×/4× Fibre Channel SFP/SFF modules.
- LX-4 modules.
- DWDM/CWDM SFP modules.
- 1GE SFP/SFF transceiver modules.
Q & A
- What is the primary function of the ADN2872ACPZ-R7?
The ADN2872ACPZ-R7 is a laser diode driver designed for advanced SFP and SFF modules, providing dual-loop control for maintaining average power and extinction ratio.
- What is the operating voltage range of the ADN2872ACPZ-R7?
The operating voltage range is 3 V to 3.6 V.
- What are the supported data rates for the ADN2872ACPZ-R7?
The device supports single-rate operation from 50 Mbps to 3.3 Gbps and multirate operation from 155 Mbps to 3.3 Gbps.
- What type of package does the ADN2872ACPZ-R7 come in?
The device is packaged in a 24-WFQFN Exposed Pad, CSP (4x4 mm).
- Is the ADN2872ACPZ-R7 RoHS compliant?
- What are the key features of the dual-loop control in the ADN2872ACPZ-R7?
The dual-loop control maintains the average power and extinction ratio, compensating for variations in laser characteristics over temperature and aging.
- How does the ADN2872ACPZ-R7 handle laser calibration?
The laser needs only be calibrated at 25°C, eliminating the need for extensive temperature calibration.
- What are some of the alarm and shutdown features of the ADN2872ACPZ-R7?
The device includes fail alarms and automatic laser shutdown (ALS).
- Can the ADN2872ACPZ-R7 be used with other Analog Devices components?
- What are some common applications of the ADN2872ACPZ-R7?
- What is the operating temperature range of the ADN2872ACPZ-R7?
