Part A
ADF4001BCPZ
ADI公司
- Lifecycle
- Active
- Stock
- 1703 件
- Package
- WFQFN-20
- Series
- 時鐘定時-時鐘發生器、PLL、頻率合成器
Replacement verdict
Not a drop-in replacement
The ADF4001BCPZ and ADF4007BCP are not drop-in replacements for one another. Although both are integer-N PLL frequency synthesizers from Analog Devices, they differ in maximum operating frequency, reference input frequency, package footprint, and supply voltage range, so a direct board-level substitution is not possible without design changes.
Different maximum frequency
Different reference input range
Different package footprint
Different supply voltage range
Parts at a glance
Part B
ADF4007BCP
ADI公司
- Lifecycle
- Active
- Stock
- 6630 件
- Package
- WFQFN-20
- 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 | ADF4001BCPZ | ADF4007BCP | Why it matters |
|---|---|---|---|
| Function Type | Integer-N PLL frequency synthesizer | Dual integer-N PLL frequency synthesizer | Defines the core role of the device; a dual PLL can drive two loops, while a single PLL drives one, affecting system architecture. |
| Number of PLLs | 1 | 2 | Determines how many independent frequency loops the chip can control, directly impacting board space and design complexity. |
| Maximum RF Input Frequency | 200 MHz | 1 GHz | Sets the upper limit of the input signal the prescaler/PLL can handle, affecting usable frequency range. |
| Prescaler | 8/9, 16/17, 32/33, 64/65 | 8/9 | Prescaler options affect the achievable division ratios and thus the output frequency resolution and range. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Determines compatibility with the system power rail; identical ranges ease drop-in substitution. |
| Package | 20-Lead LFCSP (CP-20-1) | 20-Lead LFCSP (CP-20-1) | Package footprint and pinout must match for physical board compatibility. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Confirms the device can operate in the same environmental conditions. |
| Charge Pump Current | Programmable (up to 5 mA) | Programmable (up to 5 mA) | Charge pump current affects loop filter design and lock time; matching values simplify reuse of loop filter components. |
| Interface | 3-wire serial (SPI-compatible) | 3-wire serial (SPI-compatible) | Programming interface compatibility allows reuse of the same microcontroller firmware and bus wiring. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADF4001BCPZ | ADF4007BCP |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Clock Generator (RF) | Clock/Frequency Synthesizer (RF) |
| PLL | Yes | Yes |
| Input | CMOS, TTL | CMOS |
| Output | Clock | Clock |
| Ratio - Input: Output | 2:1 | 2:1 |
| Differential - Input: Output | Yes/No | Yes/No |
| Frequency - Max | 200MHz | 7.5GHz |
| Divider / Multiplier | Yes/No | Yes/No |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 3.3V |
| 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 ADF4001BCPZ and the ADF4007BCP?
The ADF4001BCPZ is a single integer-N PLL frequency synthesizer with an on-chip charge pump, specified for RF operation up to 200 MHz, and is supplied in a 20-lead LFCSP package. The ADF4007BCP is a dual integer-N PLL frequency synthesizer with two independent charge pumps, specified for RF operation up to 1.2 GHz, and is supplied in a 20-lead LFCSP package. The ADF4007BCP integrates two complete PLLs in one package, whereas the ADF4001BCPZ integrates one.
Are the ADF4001BCPZ and ADF4007BCP pin-compatible or footprint-compatible?
No. Although both devices are offered in a 20-lead LFCSP package, they are not pin-compatible. The ADF4001BCPZ provides a single PLL with one charge pump output, while the ADF4007BCP provides two independent PLLs with two charge pump outputs and additional control and supply pins. The PCB land patterns and pin functions differ, so the two devices cannot be interchanged on the same layout without redesign.
What is the maximum RF input frequency for each device?
The ADF4001BCPZ is specified for RF input frequencies up to 200 MHz. The ADF4007BCP is specified for RF input frequencies up to 1.2 GHz. Designs requiring operation above 200 MHz should use the ADF4007BCP or another device rated for the required frequency.
How many PLLs and charge pumps does each device integrate?
The ADF4001BCPZ integrates one integer-N PLL and one charge pump. The ADF4007BCP integrates two independent integer-N PLLs and two charge pumps, allowing two separate loops to be implemented in a single package.
What is the operating supply voltage range for the ADF4001BCPZ and ADF4007BCP?
Both the ADF4001BCPZ and the ADF4007BCP are specified for a supply voltage range of 2.7 V to 3.3 V. Designs should ensure the supply remains within this range and that decoupling and layout follow the manufacturer's datasheet recommendations.
Can the ADF4001BCPZ be used as a drop-in replacement for the ADF4007BCP?
No. The ADF4001BCPZ provides only one PLL and one charge pump, while the ADF4007BCP provides two independent PLLs and two charge pumps. In addition, the pin functions and maximum RF input frequency differ (200 MHz versus 1.2 GHz). A direct drop-in replacement is not possible; any substitution requires validation against the manufacturer datasheet and the target design requirements.
What package type do the ADF4001BCPZ and ADF4007BCP use?
Both devices are supplied in a 20-lead LFCSP (lead frame chip scale package). The package type is the same, but the pin assignments and internal functions differ between the two devices, so they are not interchangeable on a common PCB layout.
Which device should be selected for a dual-loop synthesizer application?
The ADF4007BCP should be selected for applications requiring two independent PLL loops, because it integrates two integer-N PLLs and two charge pumps in a single package. The ADF4001BCPZ provides only a single PLL and is not suitable for dual-loop architectures without an additional external PLL device.