Part A
ADF4159CCPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5118 PCS
- Package
- WFQFN-24
- Series
- Horloge Timing - générateur d'horloge, PLL, synthétiseur de fréquence
Replacement verdict
Compatible functional replacement candidate
The ADF4159CCPZ and ADF4169WCCPZ are both 13 GHz fractional-N frequency synthesizers in a 24-lead LFCSP package with a shared 2.7 V to 3.6 V supply range and 3-wire SPI interface, making them strong functional replacement candidates. The ADF4169WCCPZ is the automotive-qualified variant, so designers should confirm the target application's qualification requirements and verify the maximum RF output frequency and phase-detector specifications against the specific design before substituting.
Package Type
High match
Supply Voltage Range
High match
Maximum RF Output Frequency
Validation required
Automotive Qualification
Validation required
Parts at a glance
Part B
ADF4169WCCPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4614 PCS
- Package
- WFQFN-24
- Series
- Horloge Timing - applications spécifiques
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADF4159CCPZ | ADF4169WCCPZ | Why it matters |
|---|---|---|---|
| Maximum RF Output Frequency | 13 GHz | 13.5 GHz | Determines the highest frequency the PLL synthesizer can generate; a higher limit allows use in higher-band radar and microwave applications. |
| Maximum Reference Input Frequency | 300 MHz | 250 MHz | Sets the upper bound on the reference clock; affects phase detector rate and achievable phase noise performance. |
| Maximum Phase Detector Frequency | 110 MHz | 125 MHz | Higher phase detector frequency enables wider loop bandwidth and lower in-band phase noise, improving overall synthesizer performance. |
| Normalized Phase Noise Floor | -218 dBc/Hz | -220 dBc/Hz | Indicates the intrinsic noise contribution of the PLL; a lower value yields cleaner output signals, critical for radar and communication systems. |
| Normalized 1/f Noise | -223 dBc/Hz | -225 dBc/Hz | Represents close-in flicker noise; lower 1/f noise improves phase noise performance near the carrier. |
| Supply Voltage Range | 2.7 V to 3.6 V | 3.0 V to 3.6 V | Defines the allowable power supply; a wider range offers more flexibility in system power design. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +105°C | Determines environmental robustness; the wider range of the ADF4169WCCPZ suits harsher automotive and industrial conditions. |
| Package / Pin Count | 24-Lead LFCSP | 24-Lead LFCSP | Footprint and pinout compatibility affect whether the parts can be dropped into the same PCB layout. |
| Automotive Qualification | Not AEC-Q100 Qualified | AEC-Q100 Qualified | AEC-Q100 qualification is required for automotive applications; only the ADF4169WCCPZ is suitable for automotive use. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADF4159CCPZ | ADF4169WCCPZ |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | - | Automotive |
| Part Status | Active | Active |
| PLL | Yes | Yes |
| Main Purpose | - | FMCW Radar |
| Input | CMOS, TTL | CMOS |
| Output | CMOS | Clock |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 2:1 | 2:1 |
| Differential - Input: Output | Yes/No | Yes/No |
| Frequency - Max | 13GHz | 13.5GHz |
| Voltage - Supply | 1.62V ~ 3.45V | 2.7V ~ 3.45V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Divider / Multiplier | Yes/Yes | - |
Frequently asked questions
What are the key differences between the ADF4159CCPZ and the ADF4169WCCPZ?
Both are 13 GHz fractional-N frequency synthesizers in a 24-lead LFCSP package, but the ADF4169WCCPZ is the automotive-qualified version (AEC-Q100) of the ADF4159 family, while the ADF4159CCPZ is the standard industrial-grade part. The ADF4169WCCPZ is specified over the automotive temperature range and carries qualification documentation, whereas the ADF4159CCPZ is specified for standard industrial operating conditions.
Are the ADF4159CCPZ and ADF4169WCCPZ pin-compatible?
Yes. Both devices are offered in the same 24-lead LFCSP (CP-24) package with the same pinout, so they are pin-compatible and share the same PCB land pattern. Electrical and qualification differences, not package or pinout, are the deciding factors for substitution.
Do the ADF4159CCPZ and ADF4169WCCPZ share the same RF frequency range?
Yes. Both synthesizers operate with an RF output range up to 13 GHz, using the same fractional-N architecture with integrated VCO divider and programmable modulus, so the fundamental frequency generation capability is the same across the two parts.
Is the ADF4169WCCPZ a drop-in replacement for the ADF4159CCPZ in an existing design?
Functionally and pin-wise the ADF4169WCCPZ can replace the ADF4159CCPZ, but the substitution should be validated against the target application's qualification and temperature requirements. The ADF4169WCCPZ is the automotive-qualified variant, so it is typically selected when AEC-Q100 compliance is required rather than as a cost-driven drop-in.
Which part should be selected for automotive applications?
The ADF4169WCCPZ should be selected for automotive designs because it is the AEC-Q100 qualified variant of the ADF4159 synthesizer family. The ADF4159CCPZ is the standard-grade device and is intended for non-automotive industrial and commercial applications.
Do both devices use the same SPI programming interface and register map?
Yes. Both the ADF4159CCPZ and ADF4169WCCPZ use the same 3-wire SPI-compatible serial interface and the same register structure, so firmware and configuration sequences developed for one part apply to the other without register-level changes.
Are the ADF4159CCPZ and ADF4169WCCPZ available in the same package type?
Yes. Both are supplied in the 24-lead LFCSP (CP-24) package, which supports the same footprint and thermal layout. Designers should still confirm the specific ordering code and temperature grade required for their application.