Part A
ADF4355BCPZ
ADI公司
- Lifecycle
- Active
- Stock
- 4953 件
- Package
- WFQFN-32
- Series
- 時鐘定時-時鐘發生器、PLL、頻率合成器
Replacement verdict
Not a drop-in replacement
The ADF4355BCPZ and ADF4360-2BCP are not drop-in replacements for one another. The ADF4355BCPZ is a wideband fractional-N synthesizer with an integrated VCO covering 54 MHz to 13.6 GHz, while the ADF4360-2BCP is a fixed 2.0 GHz integer-N synthesizer with integrated VCO. They differ in frequency range, synthesizer architecture, package footprint, and supply requirements, so a direct substitution is not feasible without redesign.
Different frequency range
Different synthesizer architecture
Different package footprint
Different supply requirements
Parts at a glance
Part B
ADF4360-2BCP
ADI公司
- Lifecycle
- Active
- Stock
- 4277 件
- Package
- WFQFN-24
- Series
- 時鐘定時-時鐘發生器、PLL、頻率合成器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADF4355BCPZ | ADF4360-2BCP | Why it matters |
|---|---|---|---|
| Function Type | Fractional-N / Integer-N PLL frequency synthesizer with integrated VCO | Integer-N PLL frequency synthesizer with integrated VCO | Determines whether the part supports fractional-N synthesis, which affects frequency resolution and flexibility in the loop design. |
| Frequency Range | Up to 6.8 GHz (RF output) | 1.05 GHz to 2.2 GHz | The output frequency range must cover the target application band; a mismatch makes the parts non-substitutable. |
| Maximum Operating Frequency | 6.8 GHz | 2.2 GHz | Higher maximum frequency enables higher-band applications such as microwave and wideband systems. |
| Supply Voltage | 3.0 V to 3.6 V (analog and digital) | 3.0 V to 3.6 V | Supply voltage compatibility ensures the part can be powered from the same rail without level shifting. |
| Package | 32-lead LFCSP (5 mm x 5 mm) | 24-lead LFCSP (4 mm x 4 mm) | Package footprint and pin count affect PCB layout and whether a drop-in replacement is possible. |
| Control Interface | 3-wire SPI (serial) | 3-wire SPI (serial) | A matching serial interface allows reuse of the same microcontroller firmware and bus wiring. |
| Integrated VCO | Yes | Yes | An integrated VCO reduces external component count and simplifies the RF design. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range compatibility ensures reliable operation in the same environmental conditions. |
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 | ADF4355BCPZ | ADF4360-2BCP |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Fanout Distribution, Fractional N, Integer N, Clock/Frequency Synthesizer (RF) | Fanout Distribution, Integer N Synthesizer (RF) |
| PLL | Yes | Yes |
| Input | Clock | CMOS |
| Output | Clock | Clock |
| Ratio - Input: Output | 1:2 | 1:2 |
| Differential - Input: Output | Yes/Yes | No/No |
| Frequency - Max | 6.8GHz | 2.17GHz |
| Divider / Multiplier | Yes/Yes | Yes/No |
| Voltage - Supply | 3.15V ~ 3.45V | 3V ~ 3.6V |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Circuits | 1 | - |
| Operating Temperature | -40°C ~ 85°C | - |
Frequently asked questions
What are the key differences between the ADF4355BCPZ and the ADF4360-2BCP?
The ADF4355BCPZ is a wideband fractional-N/integer-N PLL synthesizer with an integrated VCO covering 54 MHz to 13.6 GHz, while the ADF4360-2BCP is a complete integer-N PLL synthesizer with an integrated VCO covering 1850 MHz to 2170 MHz. The ADF4355BCPZ offers a much wider frequency range and fractional-N capability, whereas the ADF4360-2BCP is a fixed-frequency-range integer-N device.
Are the ADF4355BCPZ and ADF4360-2BCP pin-to-pin or package compatible?
No. The ADF4355BCPZ is supplied in a 32-lead LFCSP package, while the ADF4360-2BCP is supplied in a 24-lead LFCSP package. The different package sizes, pin counts, and pin functions prevent direct pin-to-pin substitution.
What is the output frequency range of each device?
The ADF4355BCPZ covers an output frequency range of 54 MHz to 13.6 GHz when using its integrated VCO and dividers. The ADF4360-2BCP covers 1850 MHz to 2170 MHz with its integrated VCO.
Do both devices support fractional-N operation?
No. The ADF4355BCPZ supports both fractional-N and integer-N operation. The ADF4360-2BCP is an integer-N PLL synthesizer only.
How do the power supply requirements compare?
The ADF4355BCPZ operates from a 3.3 V supply (with a separate charge pump supply), while the ADF4360-2BCP operates from a 3.3 V supply as well. Designers should consult the respective datasheets for exact supply voltage ranges and current consumption figures before finalizing power designs.
Can the ADF4360-2BCP be used as a drop-in replacement for the ADF4355BCPZ in an existing design?
No. The devices differ in package, pin count, frequency range, and fractional-N capability. A direct drop-in replacement is not possible; any substitution requires a full redesign and validation against the target application requirements.
Which device is better suited for wideband applications?
The ADF4355BCPZ is better suited for wideband applications because its integrated VCO and output dividers cover 54 MHz to 13.6 GHz. The ADF4360-2BCP is limited to the 1850 MHz to 2170 MHz range and is intended for narrower-band applications.