Part A
ADN2830ACPZ32
ADI公司
- Lifecycle
- Active
- Stock
- 5333 件
- Package
- WFQFN-32
- Series
- PMIC-雷射驅動器
Replacement verdict
Not a drop-in replacement
The ADN2830ACPZ32 and ADN2814ACPZ-RL7 serve fundamentally different functions within optical communication systems, so neither device can functionally substitute for the other. The ADN2830ACPZ32 is a laser diode controller, while the ADN2814ACPZ-RL7 is a clock and data recovery IC; their differing signal interfaces, supply requirements, and package configurations make direct replacement infeasible without a complete redesign of the surrounding circuit.
Different device function
Different signal interface
Different supply requirements
Different package and pinout
Parts at a glance
Part B
ADN2814ACPZ-RL7
ADI公司
- Lifecycle
- Active
- Stock
- 2881 件
- Package
- WFQFN-32
- Series
- 時鐘定時-特定應用
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADN2830ACPZ32 | ADN2814ACPZ-RL7 | Why it matters |
|---|---|---|---|
| Function | Laser diode bias controller / APC loop | Continuous rate 10 Mbps to 675 Mbps clock and data recovery IC | These are fundamentally different device types, so they are not functionally substitutable in the same socket. |
| Primary Application | Optical transmitter bias control for laser diodes | Receiver-side clock/data recovery in optical and backplane links | Determines whether the part belongs in the transmit or receive signal chain. |
| Data Rate / Operating Speed | Not a data-rate device (analog bias control loop) | 10 Mbps to 675 Mbps continuous rate | The CDR must match the link data rate; the bias controller has no data-rate specification. |
| Package | 32-lead LFCSP | 32-lead LFCSP | Same package footprint does not imply pin or functional compatibility. |
| Supply Voltage | 3.0 V to 5.5 V | 3.3 V nominal (3.0 V to 3.6 V) | Supply range must match the board rail; the bias controller tolerates a wider range. |
| Signal Interface | Analog control/monitor with I2C-style serial interface | CML/LVDS/PECL-compatible high-speed data inputs and outputs | Interface type determines whether the part can connect to the surrounding high-speed or control circuitry. |
| Core Function Block | Automatic power control (APC) with monitor photodiode feedback | Clock and data recovery with integrated VCO and limiting amplifier | The internal functional blocks are unrelated, confirming no substitutability. |
| Typical End Equipment | Optical transmitters, SFP/XFP modules, laser diode modules | Optical receivers, line cards, backplane and SONET/SDH systems | Indicates the intended system role and whether the part fits the target design. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2830ACPZ32 | ADN2814ACPZ-RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| PLL | - | Yes |
| Main Purpose | - | SONET/SDH |
| Input | - | CML |
| Output | - | LVDS |
| Number of Circuits | - | 1 |
| Ratio - Input: Output | - | 1:2 |
| Differential - Input: Output | - | Yes/Yes |
| Frequency - Max | - | 675MHz |
| Voltage - Supply | 4.5V ~ 5.5V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | - | Surface Mount |
| Type | Laser Diode Controller (Fiber Optic) | - |
| Number of Channels | 1 | - |
| Supply Current | 25 mA | - |
| Current - Bias | 200 mA | - |
Frequently asked questions
Are the ADN2830ACPZ32 and ADN2814ACPZ-RL7 functionally interchangeable?
No. The ADN2830ACPZ32 is a laser diode bias controller with monitor photodiode feedback, while the ADN2814ACPZ-RL7 is a continuous-rate clock and data recovery (CDR) IC with integrated limiting amplifier and quantizer. They serve different signal-chain functions and are not drop-in replacements for one another.
What are the primary functions of each device?
The ADN2830ACPZ32 provides closed-loop bias current control for laser diodes using an external monitor photodiode, supporting automatic power control (APC) in optical transmitters. The ADN2814ACPZ-RL7 performs clock and data recovery for serial data streams, extracting a recovered clock and retiming data across a continuous range of data rates, typically used in optical receiver and backplane applications.
Do both parts come in the same package?
Both devices are offered in a 32-lead LFCSP (ACPZ) package, but the pinouts and internal functions differ. Package similarity alone does not permit substitution; the PCB land pattern and pin assignments must be verified against each device's datasheet.
What supply voltages do these devices require?
The ADN2830ACPZ32 operates from a single 3.3 V supply. The ADN2814ACPZ-RL7 also operates from a 3.3 V supply. Designers should confirm exact supply tolerances and decoupling requirements from the respective manufacturer datasheets before finalizing the power design.
Can the ADN2814ACPZ-RL7 be used in an optical transmitter bias loop?
No. The ADN2814ACPZ-RL7 is a receiver-side CDR and does not include laser bias control or monitor photodiode feedback circuitry. Laser bias control in a transmitter requires a dedicated controller such as the ADN2830ACPZ32.
Are these parts RoHS compliant and available in reel packaging?
Both the ADN2830ACPZ32 and ADN2814ACPZ-RL7 are offered in RoHS-compliant LFCSP packages, and the "-RL7" suffix on the ADN2814 indicates tape-and-reel packaging. Buyers should confirm current compliance and packaging status on the manufacturer or authorized distributor listing at the time of order.
What data rates does the ADN2814ACPZ-RL7 support compared with the ADN2830ACPZ32?
The ADN2814ACPZ-RL7 is a continuous-rate CDR that operates across a broad range of serial data rates, making it suitable for multi-rate optical and backplane links. The ADN2830ACPZ32 is not a data-rate device; it is a bias controller whose relevant specifications are bias current range, monitor photodiode interface, and control loop characteristics rather than serial data rate.