Part A
ADF41513BCPZ
ADI公司
- Lifecycle
- Active
- Stock
- 6981 件
- Package
- WFQFN-24
- Series
- 時鐘定時-時鐘發生器、PLL、頻率合成器
Replacement verdict
Compatible functional replacement candidate
The ADF41513BCPZ is a higher-frequency fractional-N PLL synthesizer that shares the same 4 mm × 4 mm LFCSP-24 footprint and 3.3 V supply architecture as the ADF4158CCPZ, making it a viable functional upgrade candidate for applications requiring extended RF bandwidth. However, the wider operating frequency range, higher reference input capability, and different phase noise and current consumption profiles require careful validation against the original ADF4158CCPZ design targets before substitution.
Package and Pin Configuration
High match
Operating Frequency Range
Validation required
Supply Voltage and Current Consumption
Validation required
Phase Noise and Reference Input
Validation required
Parts at a glance
Part B
ADF4158CCPZ
ADI公司
- Lifecycle
- Active
- Stock
- 1970 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 | ADF4158CCPZ | ADF41513BCPZ | Why it matters |
|---|---|---|---|
| Maximum RF Input Frequency | 6.1 GHz | 13 GHz | Determines the highest frequency the PLL can synthesize; the ADF41513 supports roughly double the upper frequency range, enabling higher-band applications. |
| Maximum PFD Frequency | 32 MHz | 250 MHz | A higher phase-frequency detector rate allows wider loop bandwidth and lower in-band phase noise, which is critical for high-performance synthesizer designs. |
| Normalized Phase Noise Floor | -222 dBc/Hz | -234 dBc/Hz | Lower normalized phase noise directly translates to cleaner output signals; the ADF41513 offers significantly better noise performance. |
| Modulus (Fractional Resolution) | 25-bit | 49-bit | Higher fractional modulus enables finer frequency resolution and lower fractional spurs, improving synthesizer accuracy. |
| Integrated VCO | No | No | Both are fractional-N PLL synthesizers requiring an external VCO; this affects board-level design and BOM but is identical between the two parts. |
| Supply Voltage Range | 2.7 V to 3.3 V | 3.0 V to 3.6 V | Defines the allowable power supply; the narrower range of the ADF41513 may require supply rail review in existing 2.7 V designs. |
| Package | 24-Lead LFCSP (4x4 mm) | 24-Lead LFCSP (4x4 mm) | Package footprint and pin count affect PCB layout compatibility; identical packages simplify drop-in evaluation. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range suitability is identical, so environmental constraints do not differentiate the parts. |
| Interface | 3-wire SPI | 3-wire SPI | Both use a standard SPI-compatible serial interface, allowing reuse of existing microcontroller firmware and bus topology. |
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 | ADF41513BCPZ | ADF4158CCPZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Integer-N/Fractional-N | Fractional N Synthesizer (RF) |
| PLL | Yes | Yes |
| Input | CML, CMOS | 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 | 26.5GHz | 6.1GHz |
| Divider / Multiplier | Yes/Yes | Yes/Yes |
| Voltage - Supply | 3.135V ~ 3.465V | 2.7V ~ 3.3V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADF4158CCPZ and the ADF41513BCPZ?
The ADF4158CCPZ is a 6.1 GHz fractional-N PLL synthesizer with integrated waveform generation (ramp/FSK/PSK modulation) intended for radar and frequency-modulated applications, while the ADF41513BCPZ is a 26.5 GHz fractional-N/integer-N PLL synthesizer with an integrated VCO input path optimized for high-frequency microwave synthesis. The ADF41513BCPZ supports a significantly higher maximum RF input frequency and wider operating range than the ADF4158CCPZ.
What is the maximum RF input frequency of each device?
The ADF4158CCPZ operates with an RF input up to 6.1 GHz. The ADF41513BCPZ operates with an RF input up to 26.5 GHz, making it suitable for microwave and millimeter-wave front-end applications.
Do both devices share the same package and pinout?
No. The ADF4158CCPZ is supplied in a 24-lead LFCSP package, while the ADF41513BCPZ is supplied in a 32-lead LFCSP package. The pin counts and pin functions differ, so the two devices are not pin-compatible and cannot be dropped into the same PCB land pattern without redesign.
Which device supports integrated ramp and modulation generation?
The ADF4158CCPZ includes integrated waveform generation features such as frequency ramp, FSK, and PSK modulation, which are useful for FMCW radar and swept-frequency applications. The ADF41513BCPZ does not provide this integrated ramp/modulation capability and is intended primarily for high-frequency local oscillator synthesis.
What are the typical supply voltage requirements for these synthesizers?
Both the ADF4158CCPZ and the ADF41513BCPZ are designed to operate from a nominal 3.3 V supply, with an allowed analog and digital supply range of approximately 3.0 V to 3.6 V, consistent with the manufacturer datasheets. Designers should verify the exact supply limits and decoupling requirements in the respective datasheets.
Can the ADF4158CCPZ be used as a direct replacement for the ADF41513BCPZ?
No. The two devices differ in maximum RF frequency (6.1 GHz versus 26.5 GHz), package size and pinout (24-lead versus 32-lead LFCSP), and integrated modulation features. A direct replacement is not possible; any substitution requires a full design review against the target application's frequency, package, and functional requirements.
Which device is better suited for high-frequency microwave LO generation?
The ADF41513BCPZ is better suited for high-frequency microwave local oscillator generation because its RF input path supports frequencies up to 26.5 GHz. The ADF4158CCPZ, limited to 6.1 GHz, is more appropriate for lower-frequency synthesis and for applications requiring integrated ramp or modulation generation.