Part A
ADF4106BRUZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2980 PCS
- Package
- TSSOP-16
- Series
- Clock-Timing - Clock Generators, PLLs, Frequency Synthesizers
Replacement verdict
Compatible functional replacement candidate
The ADF4106BRUZ and ADF4117BRU are both single PLL frequency synthesizers in TSSOP-16 packages with a 3-wire serial interface and comparable supply voltage ranges, making them functionally related candidates. However, they differ in maximum operating frequency and RF input sensitivity, so the ADF4117BRU should only be considered a replacement after validating the target frequency plan and loop filter design against the ADF4106BRUZ requirements.
Maximum Operating Frequency
Validation required
Package Type
High match
Serial Interface
High match
Supply Voltage Range
Validation required
Parts at a glance
Part B
ADF4117BRU
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6977 PCS
- Package
- TSSOP-16
- Series
- Clock-Timing - Clock Generators, PLLs, Frequency Synthesizers
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADF4106BRUZ | ADF4117BRU | Why it matters |
|---|---|---|---|
| Maximum Operating Frequency | 6 GHz | 1.2 GHz | Determines the highest RF input frequency the PLL synthesizer can lock to; the ADF4106 supports much higher frequency operation. |
| Number of Programmable Modulus Prescaler | Dual-modulus 8/9, 16/17, 32/33, 64/65 | Dual-modulus 8/9, 16/17, 32/33, 64/65 | Prescaler options affect the achievable division ratios and loop frequency resolution for a given reference frequency. |
| Supply Voltage Range | 2.7 V to 3.3 V | 2.7 V to 3.3 V | Defines the compatible power supply rails; both parts operate over the same nominal 3 V range. |
| Package / Pin Count | 16-Lead TSSOP | 16-Lead TSSOP | Package and pinout compatibility affects whether the parts can be dropped into the same PCB footprint. |
| Charge Pump Current (Programmable) | Up to 5 mA | Up to 5 mA | Charge pump current influences loop filter design, lock time, and phase noise performance. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Determines the environmental conditions under which the device is guaranteed to meet specifications. |
| RF Input Sensitivity | -10 dBm typical | -10 dBm typical | Specifies the minimum RF input power needed for reliable operation of the prescaler and phase detector. |
| Reference Input Frequency | Up to 250 MHz | Up to 250 MHz | Limits the maximum reference clock that can be applied to the phase frequency detector. |
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 | ADF4106BRUZ | ADF4117BRU |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Clock/Frequency Synthesizer (RF) | Clock/Frequency Synthesizer (RF) |
| PLL | Yes | Yes |
| 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 | 6GHz | 1.2GHz |
| Divider / Multiplier | Yes/No | Yes/No |
| Voltage - Supply | 2.7V ~ 3.3V | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADF4106BRUZ and ADF4117BRU?
The ADF4106BRUZ is a 6 GHz PLL frequency synthesizer with a 24-bit modulus and is specified for a maximum RF input frequency of 6 GHz, while the ADF4117BRU is a 1.2 GHz PLL synthesizer with a 17-bit modulus and a maximum RF input frequency of 1.2 GHz. The ADF4106BRUZ offers higher frequency operation and a wider modulus range, whereas the ADF4117BRU is intended for lower-frequency applications.
Are the ADF4106BRUZ and ADF4117BRU pin-compatible?
Both devices are offered in a 16-lead TSSOP package (RU suffix), and their pin functions are largely similar, but they are not identical in all respects. Designers should verify the pin configuration and function against the respective manufacturer datasheets before considering a direct replacement.
What is the maximum RF input frequency for each device?
The ADF4106BRUZ supports a maximum RF input frequency of 6 GHz, while the ADF4117BRU supports a maximum RF input frequency of 1.2 GHz. The appropriate device should be selected based on the operating frequency of the target application.
What is the modulus range of the ADF4106BRUZ compared to the ADF4117BRU?
The ADF4106BRUZ features a 24-bit modulus, allowing a fractional modulus range up to 16,777,215. The ADF4117BRU features a 17-bit modulus, allowing a fractional modulus range up to 131,071. The ADF4106BRUZ therefore supports finer frequency resolution and higher fractional ratios.
Can the ADF4117BRU be used as a drop-in replacement for the ADF4106BRUZ?
No. Although both are 16-lead TSSOP PLL synthesizers, the ADF4117BRU has a maximum RF input frequency of 1.2 GHz versus 6 GHz for the ADF4106BRUZ, and a 17-bit versus 24-bit modulus. A drop-in replacement is not appropriate where the higher frequency range or finer modulus of the ADF4106BRUZ is required.
What supply voltage range do these devices require?
Both the ADF4106BRUZ and ADF4117BRU operate from a single supply of 2.7 V to 3.3 V, consistent with the ADF41xx family specifications. The supply should be decoupled and kept within the specified range for reliable operation.
Do both devices include an on-chip prescaler?
Yes. Both the ADF4106BRUZ and ADF4117BRU integrate a dual-modulus prescaler (P/P+1) as part of the PLL synthesizer architecture. The prescaler value and modulus settings are programmed via the serial interface and should be configured according to the manufacturer datasheet for the selected device.
Which device is better suited for higher-frequency RF applications?
The ADF4106BRUZ is better suited for higher-frequency RF applications because its maximum RF input frequency is 6 GHz, compared with 1.2 GHz for the ADF4117BRU. For applications operating above 1.2 GHz, the ADF4106BRUZ is the appropriate choice within this comparison.