Part A
ADF4159CCPZ-RL7
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5050 PCS
- Package
- WFQFN-24
- Series
- Clock-Timing - Clock Generators, PLLs, Frequency Synthesizers
Replacement verdict
Compatible functional replacement candidate
The ADF4169CCPZ and ADF4159CCPZ-RL7 are functionally compatible fractional-N PLL synthesizers sharing the same core architecture, package footprint, and supply requirements, making the ADF4169CCPZ a viable replacement candidate for the ADF4159CCPZ-RL7 in most designs. Designers should validate the waveform generation and modulation feature set against their specific application requirements before final qualification.
Package Type
High match
Frequency Range
High match
Supply Voltage
High match
Modulation Features
Validation required
Parts at a glance
Part B
ADF4169CCPZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2362 PCS
- Package
- WFQFN-24
- Series
- Clock-Timing - Application Specific
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADF4169CCPZ | ADF4159CCPZ-RL7 | Why it matters |
|---|---|---|---|
| Frequency Range (RF Output) | Up to 13.6 GHz | Up to 13 GHz | Defines the maximum synthesizable output frequency; the ADF4169 extends usable range slightly higher, affecting high-band applications. |
| Maximum RF Output Frequency | 13.6 GHz | 13 GHz | Directly determines whether the part can cover a given LO or radar band without external frequency multiplication. |
| Modulation / Ramp Capability | Fast frequency ramp / FMCW waveform generation | Fast frequency ramp / FMCW waveform generation | Both support ramp generation for FMCW radar; confirming this ensures functional substitutability in radar and chirp applications. |
| Package / Pin Count | 32-Lead LFCSP | 32-Lead LFCSP | Identical package and pinout allow drop-in board replacement without layout changes. |
| Supply Voltage | 3.0 V to 3.6 V (analog/digital) | 3.0 V to 3.6 V (analog/digital) | Matching supply rails confirm the parts can share the same power design and decoupling scheme. |
| Interface | 3-wire SPI | 3-wire SPI | Same serial control interface means firmware and host driver code remain compatible across both parts. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Equivalent temperature ratings ensure both parts meet the same environmental qualification for industrial use. |
| Phase Detector / Charge Pump | Integrated PFD and charge pump | Integrated PFD and charge pump | On-chip PFD/charge pump integration affects loop filter design and overall PLL architecture compatibility. |
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 | ADF4159CCPZ-RL7 | ADF4169CCPZ |
|---|---|---|
| Part Status | Active | Active |
| PLL | Yes | - |
| Input | CMOS, TTL | - |
| Output | CMOS | - |
| Number of Circuits | 1 | - |
| Ratio - Input: Output | 2:1 | - |
| Differential - Input: Output | Yes/No | - |
| Frequency - Max | 13GHz | - |
| Divider / Multiplier | Yes/Yes | - |
| Voltage - Supply | 1.62V ~ 3.45V | - |
| Operating Temperature | -40°C ~ 125°C | - |
| Mounting Type | Surface Mount | - |
Frequently asked questions
What are the ADF4169CCPZ and ADF4159CCPZ-RL7?
Both are 13 GHz fractional-N frequency synthesizers from Analog Devices. The ADF4159 is a 13 GHz fractional-N synthesizer with modulation capability, and the ADF4169 is a related 13 GHz fractional-N synthesizer with integrated waveform generation features. Both are offered in a 24-lead LFCSP package.
What is the key functional difference between the ADF4169 and ADF4159?
The ADF4169 includes an integrated waveform generation function (ramp generation) that supports frequency ramp and frequency shift keying (FSK) modulation, making it suited to radar and frequency-modulated continuous-wave (FMCW) applications. The ADF4159 provides fractional-N synthesis with modulation capability but does not include the same integrated ramp generation feature set as the ADF4169.
Are the ADF4169CCPZ and ADF4159CCPZ-RL7 pin-compatible?
Both devices are specified in the same 24-lead LFCSP package, and their pin functions are closely related. However, because the ADF4169 includes additional waveform generation functionality, designers should verify pin function assignments against the respective datasheets before considering a direct board-level substitution.
What is the difference between the ADF4169CCPZ and ADF4159CCPZ-RL7 ordering suffixes?
The "CCPZ" suffix indicates a RoHS-compliant, lead-free 24-lead LFCSP package in tray or tube form. The "CCPZ-RL7" suffix indicates the same RoHS-compliant 24-lead LFCSP package supplied in tape-and-reel format with a 7-inch reel. The electrical performance of the devices is the same; the difference is packaging and shipping format.
What is the maximum RF output frequency of these synthesizers?
Both the ADF4169 and ADF4159 are specified for RF output frequencies up to 13 GHz, using an integrated VCO and divider architecture with external loop filter components.
Can the ADF4169CCPZ be used as a drop-in replacement for the ADF4159CCPZ-RL7?
Not unconditionally. Although both are 13 GHz fractional-N synthesizers in the same 24-lead LFCSP package, the ADF4169 includes integrated waveform generation features not present in the ADF4159. A drop-in replacement requires verifying register map compatibility, pin functions, and the specific modulation requirements of the target design against both datasheets.
What applications are these synthesizers typically used in?
Both devices are used in applications requiring high-frequency synthesis with modulation, including radar systems, FMCW radar, test and measurement equipment, and communications systems. The ADF4169's integrated ramp generation makes it particularly suited to FMCW radar and frequency-ramp applications.