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 serve fundamentally different functions within optical communication systems: the ADN2830ACPZ32 is a laser diode bias controller, while the ADN2814ACPZ is a clock and data recovery IC. Their electrical characteristics, signal interfaces, and package configurations are not interchangeable, so substituting one for the other is not feasible without redesigning the surrounding circuit.
Different device function
Different signal interface
Different package and pinout
Different supply requirements
Parts at a glance
Part B
ADN2814ACPZ
ADI公司
- Lifecycle
- Active
- Stock
- 7939 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 | Why it matters |
|---|---|---|---|
| Function | Laser diode bias controller / APC loop | Continuous-rate clock and data recovery (CDR) IC | These devices perform fundamentally different functions, so they are not functionally substitutable in a given circuit. |
| Data Rate / Operating Frequency | Not a data-rate device (analog bias control loop) | Continuous rate from 10 Mbps to 675 Mbps | The CDR must match the system data rate; the bias controller has no data-rate specification. |
| Supply Voltage | 3.3 V nominal | 3.3 V nominal | Both operate from a 3.3 V rail, easing power-supply compatibility, though their functions differ. |
| Package | 32-lead LFCSP (5 mm x 5 mm) | 32-lead LFCSP (5 mm x 5 mm) | Identical package footprint allows board-level interchangeability, but pin functions differ. |
| Primary Output | Bias current to laser diode (up to ~100 mA) | Recovered clock and retimed data (CML/LVPECL) | Output signal types are incompatible; one drives a laser, the other delivers digital clock/data. |
| Input Signal | Monitor photodiode feedback current | High-speed serial data input | The input interfaces serve entirely different signal domains (optical feedback vs. serial data). |
| Typical Application | Optical transmitter bias/APC control | Optical receiver clock/data recovery | They sit on opposite ends of an optical link (transmit vs. receive), so they are complementary rather than interchangeable. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Both meet industrial temperature requirements, suitable for the same environmental conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2830ACPZ32 | ADN2814ACPZ |
|---|---|---|
| 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
What are the ADN2830ACPZ32 and ADN2814ACPZ, and are they functionally interchangeable?
The ADN2830ACPZ32 is a laser diode bias controller with an integrated monitor photodiode interface, while the ADN2814ACPZ is a continuous-rate clock and data recovery (CDR) IC with integrated limiting amplifier and quantizer. They perform different signal-chain functions and are not interchangeable; the ADN2830 controls laser bias current, whereas the ADN2814 recovers clock and retimes data in optical receiver paths.
What are the key differences in function between the ADN2830ACPZ32 and ADN2814ACPZ?
The ADN2830ACPZ32 provides closed-loop control of laser bias current using an external monitor photodiode, supporting automatic power control (APC) in optical transmitters. The ADN2814ACPZ performs clock and data recovery over a continuous range of data rates, typically from 12.5 Mbps to 2.7 Gbps, with an integrated limiting amplifier and quantizer for optical receiver applications.
Do the ADN2830ACPZ32 and ADN2814ACPZ use the same package and pinout?
Both devices are offered in 32-lead LFCSP packages, but their pinouts and internal functions differ. The ADN2830ACPZ32 is a laser bias controller, while the ADN2814ACPZ is a CDR with limiting amplifier. Because pin assignments and supply/interface requirements differ, they cannot be treated as pin-compatible substitutes.
What supply voltages do the ADN2830ACPZ32 and ADN2814ACPZ require?
The ADN2830ACPZ32 operates from a single 3.3 V supply. The ADN2814ACPZ 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.
In what applications would the ADN2830ACPZ32 be used versus the ADN2814ACPZ?
The ADN2830ACPZ32 is used in optical transmitter modules for laser bias control and automatic power control. The ADN2814ACPZ is used in optical receiver modules and backplane/serial links for clock and data recovery and signal retiming. They are complementary parts in an optical link rather than alternatives.
Can the ADN2830ACPZ32 and ADN2814ACPZ be used together in the same optical module?
Yes, they can coexist in an optical transceiver module: the ADN2830ACPZ32 can control the transmit laser bias, while the ADN2814ACPZ can recover clock and data on the receive path. Their coexistence is application-dependent and requires careful system-level design and validation against the manufacturer datasheets.
What data rates does the ADN2814ACPZ support compared with the ADN2830ACPZ32?
The ADN2814ACPZ supports continuous-rate clock and data recovery typically from 12.5 Mbps to 2.7 Gbps. The ADN2830ACPZ32 is a laser bias controller and does not define a data rate; its relevant specifications are bias current range, monitor photodiode interface, and control loop characteristics.
Are the ADN2830ACPZ32 and ADN2814ACPZ qualified for the same temperature range?
Both devices are specified for the industrial temperature range of −40 °C to +85 °C. Designers should verify the exact operating temperature specification and thermal derating requirements in the respective manufacturer datasheets for the target application.