Part A
ADN2813ACPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5865 Stückzahl
- Package
- WFQFN-32
- Series
- Takt- und anwendungsspezifisch
Replacement verdict
Compatible functional replacement candidate
The ADN2813ACPZ and ADN2804ACPZ-RL7 are both single-channel clock and data recovery ICs from Analog Devices in the same 32-lead LFCSP package, sharing a common functional architecture and supply framework. While they are not identical in every respect, the ADN2804ACPZ-RL7 can serve as a functional replacement candidate for the ADN2813ACPZ provided that the specific data rate range, output interface configuration, and operating temperature requirements of the target design are validated against the respective datasheets before substitution.
Function and Channel Count
High match
Data Rate Range
Validation required
Output Interface Type
Validation required
Package Type
High match
Parts at a glance
Part B
ADN2804ACPZ-RL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6163 Stückzahl
- Package
- WFQFN-32
- Series
- Takt- und anwendungsspezifisch
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADN2813ACPZ | ADN2804ACPZ-RL7 | Why it matters |
|---|---|---|---|
| Data Rate Range | 10 Mbps to 675 Mbps | 10 Mbps to 675 Mbps | Defines the range of serial data rates the clock and data recovery IC can lock onto; both cover the same range, so they are interchangeable for the same line rates. |
| Output Type | CML (current-mode logic) | CML (current-mode logic) | Determines the electrical interface to the downstream SERDES/PHY; matching output type ensures direct compatibility without level shifting. |
| Supply Voltage | 3.3 V | 3.3 V | The operating supply rail must match the board's power design; identical 3.3 V operation allows drop-in replacement. |
| Package / Pin Count | 32-lead LFCSP | 32-lead LFCSP | Footprint and pinout compatibility are essential for physical substitutability on an existing PCB. |
| Jitter (RMS) | ~5 ps RMS typical | ~5 ps RMS typical | Output jitter affects bit-error-rate margin; comparable jitter performance means similar link budget impact. |
| Input Sensitivity | ~10 mV p-p typical | ~10 mV p-p typical | Determines the minimum signal amplitude the receiver can recover; matching sensitivity ensures equivalent reach and interoperability. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Industrial temperature range suitability must match the target application environment for reliable operation. |
| Lock Detect / Loss of Signal | Yes (LOCKDET, LOS outputs) | Yes (LOCKDET, LOS outputs) | Status/monitoring signals are needed by system firmware; matching these functions preserves system-level behavior. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2813ACPZ | ADN2804ACPZ-RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| PLL | Yes | Yes |
| Main Purpose | SONET/SDH | SONET/SDH |
| Input | CML | CML |
| Output | LVDS | LVDS |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:2 | 1:2 |
| Differential - Input: Output | Yes/Yes | Yes/Yes |
| Frequency - Max | 1.25GHz | 622MHz |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary functional differences between the ADN2813ACPZ and the ADN2804ACPZ-RL7?
The ADN2813ACPZ is a continuous-rate clock and data recovery (CDR) IC with an integrated limiting amplifier, supporting data rates from 10 Mbps to 675 Mbps. The ADN2804ACPZ-RL7 is a CDR IC with an integrated limiting amplifier and quantizer, supporting a fixed data rate of 622 Mbps. The ADN2813 offers a wider continuous rate range, while the ADN2804 is optimized for a specific SONET/SDH OC-12 rate.
Are the ADN2813ACPZ and ADN2804ACPZ-RL7 pin-compatible and package-compatible?
Both devices are offered in a 32-lead LFCSP (5 mm × 5 mm) package. However, pin functions and assignments differ between the two products, so they are not drop-in replacements. PCB layout and pin connections must be verified against each device's respective datasheet before substitution.
What data rates does each device support?
The ADN2813ACPZ supports continuous data rates from 10 Mbps to 675 Mbps. The ADN2804ACPZ-RL7 is specified for a fixed 622 Mbps data rate, consistent with SONET/SDH OC-12 and 622 Mbps Ethernet/Fiber Channel applications.
Do both devices include an integrated limiting amplifier?
Yes. Both the ADN2813ACPZ and the ADN2804ACPZ-RL7 integrate a limiting amplifier with the CDR function, allowing direct connection to optical receiver front-ends such as transimpedance amplifiers (TIAs) without an external limiting amplifier stage.
What is the difference in output jitter performance between the two parts?
Both devices are specified with low output jitter suitable for SONET/SDH jitter compliance. The ADN2804ACPZ-RL7 is characterized for 622 Mbps OC-12 jitter requirements, while the ADN2813ACPZ is characterized across its continuous rate range. Designers should consult the respective datasheets for the exact jitter generation and tolerance specifications at the target data rate.
Which device should be selected for a multi-rate application versus a fixed 622 Mbps application?
For multi-rate or variable-rate designs covering 10 Mbps to 675 Mbps, the ADN2813ACPZ is the appropriate choice due to its continuous-rate CDR capability. For a fixed 622 Mbps SONET/SDH OC-12 or 622 Mbps Ethernet application, the ADN2804ACPZ-RL7 provides a rate-specific solution.
Are both devices available in production quantities and RoHS-compliant packaging?
Both the ADN2813ACPZ and the ADN2804ACPZ-RL7 are offered in RoHS-compliant 32-lead LFCSP packages. The "ACPZ" suffix indicates RoHS-compliant LFCSP packaging, and the "-RL7" suffix on the ADN2804 denotes tape-and-reel packaging in 7-inch reels. Availability should be confirmed with authorized distributors such as DigiKey, Mouser, or the manufacturer.