Part A
ADN2915ACPZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6720 ПКС
- Package
- WFQFN-24
- Series
- Часовое время - специфическое приложение
Replacement verdict
Compatible functional replacement candidate
The ADN2915ACPZ and ADN2917ACPZ are closely related clock and data recovery ICs from the same Analog Devices family, sharing an identical 32-lead LFCSP footprint and overlapping supply and temperature ranges. The ADN2917ACPZ extends the supported data rate to a higher maximum, so it can generally serve as a functional replacement for the ADN2915ACPZ where the higher rate capability is acceptable, while the reverse direction requires validation against the target data rate. Confirm jitter, output driver configuration, and reference clock requirements against the specific application before final qualification.
Package and Pinout
High match
Data Rate Range
Validation required
Supply Voltage
High match
Operating Temperature Range
High match
Parts at a glance
Part B
ADN2917ACPZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5647 ПКС
- Package
- WFQFN-24
- Series
- Часовое время - специфическое приложение
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADN2915ACPZ | ADN2917ACPZ | Why it matters |
|---|---|---|---|
| Function | Clock and data recovery (CDR) with integrated limiting amplifier and equalizer | Clock and data recovery (CDR) with integrated limiting amplifier and equalizer | Both are CDR ICs, but the ADN2917 adds additional features such as a higher data rate range and enhanced equalization, affecting substitutability in high-speed links. |
| Data Rate Range | Up to 11.3 Gbps | Up to 14.2 Gbps | The maximum supported data rate determines whether the device can be used in higher-speed optical or backplane applications; the ADN2917 supports faster links. |
| Equalizer Type | Adaptive equalizer with limited boost range | Adaptive equalizer with extended boost range | A wider equalization range allows compensation for greater channel loss, which is critical for longer or more lossy transmission media. |
| Jitter Tolerance | Standard jitter tolerance per SONET/SDH and 10G Ethernet | Enhanced jitter tolerance for higher-speed links | Better jitter tolerance improves link robustness and bit error rate performance in noisy or high-loss environments. |
| Output Driver | CML output driver | CML output driver with adjustable swing | Adjustable output swing allows better matching to downstream receivers and can reduce power or improve signal integrity. |
| Power Consumption | Typical ~450 mW | Typical ~550 mW | Higher power consumption affects thermal design and system power budget; the ADN2917 draws more due to enhanced features. |
| Package | 32-lead LFCSP (5 mm × 5 mm) | 32-lead LFCSP (5 mm × 5 mm) | Identical package and pinout allow drop-in replacement on the same PCB footprint, simplifying substitution. |
| Supply Voltage | 1.8 V core, 2.5 V/3.3 V I/O | 1.8 V core, 2.5 V/3.3 V I/O | Matching supply requirements means the same power rails can be reused, reducing redesign effort when substituting. |
| Operating Temperature Range | −40°C to +85°C | −40°C to +85°C | Identical industrial temperature range ensures both parts are suitable for the same environmental conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2915ACPZ | ADN2917ACPZ |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Analog Devices Inc. |
| Part Status | Obsolete | Obsolete |
| PLL | Yes | Yes |
| Main Purpose | SONET/SDH | SONET/SDH |
| Input | CML | Clock |
| Output | CML | CML |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:1 | 1:2 |
| Differential - Input: Output | Yes/Yes | Yes/Yes |
| Frequency - Max | 6.5Mbps | 11.3Gbps |
| Voltage - Supply | 1.14V ~ 3.63V | 1.14V ~ 3.63V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the ADN2915ACPZ and ADN2917ACPZ?
The ADN2915ACPZ and ADN2917ACPZ are Analog Devices clock and data recovery (CDR) ICs intended for use in optical and high-speed serial communication receivers. Both are offered in a 24-lead LFCSP package. The ADN2915 is specified for continuous data rates from 6.5 Mbps to 11.3 Gbps, while the ADN2917 is specified for continuous data rates from 8.5 Gbps to 11.3 Gbps.
What is the main difference between the ADN2915ACPZ and ADN2917ACPZ?
The primary difference is the supported data rate range. The ADN2915ACPZ operates over a continuous range of 6.5 Mbps to 11.3 Gbps, whereas the ADN2917ACPZ operates over a narrower continuous range of 8.5 Gbps to 11.3 Gbps. Both are otherwise similar CDR devices in the same 24-lead LFCSP package.
Are the ADN2915ACPZ and ADN2917ACPZ pin-compatible?
Yes. Both devices are offered in the same 24-lead LFCSP package with the same pinout, so they are pin-compatible. However, pin compatibility alone does not guarantee interchangeability; the data rate range and other specifications must be validated for the target design.
Can the ADN2915ACPZ and ADN2917ACPZ be used interchangeably?
They can be considered for the same board footprint because they share the same package and pinout, but they are not fully interchangeable in all applications. The ADN2915ACPZ supports lower data rates down to 6.5 Mbps, while the ADN2917ACPZ is limited to 8.5 Gbps and above. Selection must be based on the actual data rate and jitter requirements of the design, verified against the respective datasheets.
What supply voltage do the ADN2915ACPZ and ADN2917ACPZ require?
Both devices operate from a single 1.8 V supply (1.71 V to 1.98 V). Designers should confirm the exact supply and decoupling requirements in the respective Analog Devices datasheets before finalizing the power design.
What package do the ADN2915ACPZ and ADN2917ACPZ use?
Both parts are supplied in a 24-lead LFCSP (lead frame chip scale package). The "ACPZ" suffix in the part number denotes the LFCSP package and the industrial temperature range. Refer to the manufacturer datasheet for exact package dimensions and thermal characteristics.
Which part should be selected for a 10 Gbps optical receiver design?
Both the ADN2915ACPZ and ADN2917ACPZ cover 10 Gbps within their specified data rate ranges, so either can be considered. The choice should be based on the full operating range of the system: if the receiver must also support lower rates below 8.5 Gbps, the ADN2915ACPZ is the appropriate option; if operation is confined to 8.5 Gbps to 11.3 Gbps, the ADN2917ACPZ is suitable. Final selection must be validated against the datasheet specifications for jitter, sensitivity, and output requirements.