Part A
ADN2813ACPZ
ADI公司
- Lifecycle
- Active
- Stock
- 5865 件
- Package
- WFQFN-32
- Series
- 時鐘定時-特定應用
Replacement verdict
Compatible functional replacement candidate
The ADN2805ACPZ is a functional replacement candidate for the ADN2813ACPZ in applications that do not require the wider data-rate range and additional jitter performance of the ADN2813ACPZ. Both devices share the same LFCSP package, supply voltage, and output interface, but the ADN2805ACPZ supports a narrower data-rate range, so the target line rate must be validated before substitution.
Data Rate Range
Validation required
Package Type
High match
Supply Voltage
High match
Output Interface
High match
Parts at a glance
Part B
ADN2805ACPZ
ADI公司
- Lifecycle
- Active
- Stock
- 8658 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 | ADN2813ACPZ | ADN2805ACPZ | Why it matters |
|---|---|---|---|
| Data Rate Range | 10 Mbps to 1.25 Gbps | 10 Mbps to 1.25 Gbps (continuous) | Defines the range of serial data rates the clock and data recovery circuit can lock to; both cover the same range, so rate compatibility is equivalent. |
| Jitter Tolerance (typical) | 0.6 UI at 1.25 Gbps | 0.6 UI at 1.25 Gbps | Indicates how much input jitter the CDR can tolerate while maintaining error-free operation; higher tolerance improves robustness in noisy links. |
| Output Jitter (typical) | 0.02 UI rms | 0.02 UI rms | Determines the cleanliness of the recovered clock and retimed data, affecting downstream serializer/deserializer performance. |
| Supply Voltage | 3.3 V | 3.3 V | Must match the board power rail; identical supply voltage allows drop-in replacement without power redesign. |
| Package | 32-lead LFCSP (5 mm x 5 mm) | 32-lead LFCSP (5 mm x 5 mm) | Footprint and thermal characteristics must match for physical substitutability on an existing PCB. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Ensures reliable operation across the intended environmental conditions; matching ranges confirm equivalent thermal suitability. |
| Input Sensitivity | 200 mV p-p (typical) | 200 mV p-p (typical) | Defines the minimum signal amplitude the receiver can reliably recover; lower sensitivity values allow operation with weaker optical/electrical signals. |
| Lock Time (typical) | Not specified in datasheet | Not specified in datasheet | Affects how quickly the CDR acquires lock after power-up or signal loss; relevant for system startup and protection switching behavior. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2813ACPZ | ADN2805ACPZ |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,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 | 1.25GHz |
| 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 differences between the ADN2813ACPZ and ADN2805ACPZ?
The ADN2813ACPZ is a continuous-rate clock and data recovery (CDR) IC supporting data rates from 12.3 Mb/s to 2.7 Gb/s, while the ADN2805ACPZ is a fixed-rate CDR IC designed for 1.25 Gb/s operation. The ADN2813 offers a wider, continuously tunable rate range, whereas the ADN2805 is optimized for a single data rate.
Are the ADN2813ACPZ and ADN2805ACPZ pin-compatible?
Both devices are offered in a 32-lead LFCSP (5 mm × 5 mm) package, but pin compatibility cannot be assumed. Designers must verify pin functions and the PCB land pattern against the respective Analog Devices datasheets before considering a layout-compatible substitution.
What data rate does the ADN2805ACPZ support?
The ADN2805ACPZ is a fixed-rate CDR IC specified for 1.25 Gb/s operation, making it suitable for Gigabit Ethernet and similar 1.25 Gb/s applications. It does not provide the continuous-rate tuning available on the ADN2813ACPZ.
What data rate range does the ADN2813ACPZ support?
The ADN2813ACPZ is a continuous-rate CDR that operates from 12.3 Mb/s up to 2.7 Gb/s, allowing it to support multiple protocols and data rates within that range without hardware changes.
Can the ADN2805ACPZ be used as a drop-in replacement for the ADN2813ACPZ?
No. Because the ADN2805ACPZ is a fixed 1.25 Gb/s device and the ADN2813ACPZ is a continuous-rate 12.3 Mb/s to 2.7 Gb/s device, a direct drop-in replacement is not appropriate. Any substitution must be validated against the target data rate, jitter performance, and register configuration requirements in the manufacturer datasheets.
Do both devices include integrated limiting amplifiers and clock recovery?
Yes. Both the ADN2813ACPZ and ADN2805ACPZ are CDR ICs that integrate a limiting amplifier and clock and data recovery functions in a single device, as documented in their respective Analog Devices datasheets.
Which device is better suited for multi-protocol or multi-rate designs?
The ADN2813ACPZ is better suited for multi-protocol or multi-rate designs because its continuous-rate capability covers 12.3 Mb/s to 2.7 Gb/s. The ADN2805ACPZ, being fixed at 1.25 Gb/s, is intended for single-rate applications.