Part A
ADF4002BCPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3484 PCS
- Package
- WFQFN-20
- Series
- Horloge Timing - générateur d'horloge, PLL, synthétiseur de fréquence
Replacement verdict
Compatible functional replacement candidate
The ADF4002BCPZ-RL7 and ADF4002BCPZ are functionally equivalent phase frequency detectors built on the same silicon and housed in the same 20-lead LFCSP package; the only meaningful distinction is the tape-and-reel packing format of the RL7 variant versus the tray format of the standard part. Both share identical electrical specifications, frequency range, supply voltage, and temperature ratings, making them interchangeable for design and production purposes.
Package Type
High match
Operating Frequency Range
High match
Supply Voltage
High match
Operating Temperature Range
High match
Parts at a glance
Part B
ADF4002BCPZ-RL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 7422 PCS
- Package
- WFQFN-20
- Series
- Horloge Timing - générateur d'horloge, PLL, synthétiseur de fréquence
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADF4002BCPZ-RL7 | ADF4002BCPZ | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical silicon design and process, critical for functional substitutability. |
| Function | PLL Frequency Synthesizer (Phase Detector / Fractional-N) | PLL Frequency Synthesizer (Phase Detector / Fractional-N) | Both parts must perform the same core PLL synthesizer function to be interchangeable in a design. |
| Package / Case | 20-Lead LFCSP (4x4 mm) | 20-Lead LFCSP (4x4 mm) | Identical package and footprint allow drop-in replacement on the same PCB without layout changes. |
| Supply Voltage Range | 2.7 V to 3.3 V | 2.7 V to 3.3 V | Matching supply requirements ensure the part operates correctly in the same power rail design. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Same temperature rating guarantees equivalent environmental performance in the target application. |
| Maximum RF Input Frequency | 400 MHz | 400 MHz | Identical frequency capability ensures the same RF synthesis range is achievable. |
| Number of Pins | 20 | 20 | Same pin count confirms pin-to-pin compatibility for direct substitution. |
| Packaging / Delivery Form | Tape & Reel (RL7 suffix) | Tray / Tube (bulk) | Different packaging affects assembly line handling and inventory format, though the die and package are identical. |
| Ordering Part Number Suffix | -RL7 (reel) | (none, standard) | The suffix distinguishes reel packaging from standard packaging; the electrical part is the same but procurement and MOQ differ. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADF4002BCPZ | ADF4002BCPZ-RL7 |
|---|---|---|
| Part Status | Active | Active |
| Type | Clock/Frequency Synthesizer (RF), Phase Detector | Clock/Frequency Synthesizer (RF), Phase Detector |
| PLL | Yes with Bypass | Yes with Bypass |
| Input | CMOS, TTL | CMOS, TTL |
| Output | Clock | Clock |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 2:1 | 2:1 |
| Differential - Input: Output | Yes/No | Yes/No |
| Frequency - Max | 400MHz | 400MHz |
| Divider / Multiplier | Yes/No | Yes/No |
| Voltage - Supply | 2.7V ~ 3.3V | 2.7V ~ 3.3V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between ADF4002BCPZ-RL7 and ADF4002BCPZ?
Both are the same ADF4002 phase frequency detector / PLL synthesizer IC in a 20-lead LFCSP package. The difference is packaging format: ADF4002BCPZ is supplied in trays, while ADF4002BCPZ-RL7 is supplied in tape-and-reel packaging (7-inch reel) for automated assembly. The electrical specifications and die are identical.
Are ADF4002BCPZ-RL7 and ADF4002BCPZ electrically and functionally interchangeable?
Yes. Both variants share the same silicon die, the same 20-lead LFCSP (CP-20-6) package, and identical datasheet specifications, including operating frequency range, supply voltage range, and logic interface levels. They differ only in shipping media (tape-and-reel vs. tray).
What is the operating frequency range of the ADF4002?
The ADF4002 RF input operates up to 400 MHz, and the PFD (phase frequency detector) maximum operating frequency is 104 MHz, per the Analog Devices datasheet.
What supply voltage does the ADF4002 require?
The ADF4002 operates from a single supply of 2.7 V to 3.3 V, with a nominal 3.0 V or 3.3 V rail. The charge pump supply (VCP) can be separately powered up to 5.5 V for extended tuning voltage range.
What package does the ADF4002BCPZ use, and is it RoHS compliant?
The ADF4002BCPZ and ADF4002BCPZ-RL7 both use a 20-lead LFCSP (lead frame chip scale package, 4 mm × 4 mm). The "Z" suffix in the part number indicates RoHS-compliant, lead-free construction per Analog Devices ordering conventions.
Which variant should be selected for high-volume automated PCB assembly?
ADF4002BCPZ-RL7 is the appropriate choice for automated pick-and-place assembly because it is supplied on 7-inch tape-and-reel. ADF4002BCPZ in trays is typically used for prototyping, low-volume runs, or manual assembly.
Do ADF4002BCPZ-RL7 and ADF4002BCPZ share the same datasheet and reference design?
Yes. Both ordering variants are covered by the same Analog Devices ADF4002 datasheet and evaluation board documentation. Reference designs, loop filter calculations, and register programming apply equally to both.