Part A
ADF4107BRU
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2399 PCS
- Series
- Horário - Geradores de relógios, PLLs, Sintetizadores de Frequências
Replacement verdict
Compatible functional replacement candidate
The ADF4106BRUZ and ADF4107BRU are both single PLL frequency synthesizers from Analog Devices in the same 16-lead TSSOP package, sharing a common pinout and 3-wire serial interface, so the ADF4107BRU can serve as a functional replacement candidate for the ADF4106BRUZ in many designs. The primary distinction is the maximum operating frequency, which requires validation against the target RF range before substitution.
Package Type
High match
Pin Configuration
High match
Maximum Operating Frequency
Validation required
Supply Voltage Range
High match
Parts at a glance
Part B
ADF4106BRUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2980 PCS
- Package
- TSSOP-16
- Series
- Horário - Geradores de relógios, PLLs, Sintetizadores de Frequências
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 | ADF4107BRU | Why it matters |
|---|---|---|---|
| Maximum Operating Frequency | 6 GHz | 7 GHz | Determines the highest RF input frequency the PLL can lock to; the ADF4107 supports higher-frequency VCOs and applications. |
| Maximum RF Input Frequency (REFIN) | 250 MHz | 300 MHz | Sets the upper limit for the reference input; a higher REFIN allows greater phase detector comparison frequency and lower division ratios. |
| Maximum Phase Detector Frequency | 104 MHz | 104 MHz | Affects phase noise and lock time; both parts share the same PFD limit, so this is functionally equivalent. |
| Supply Voltage Range | 2.7 V to 3.3 V | 2.7 V to 3.3 V | Defines the compatible power rail; identical ranges mean either part can drop into the same 3 V supply design. |
| Package / Pin Count | 16-Lead TSSOP | 16-Lead TSSOP | Same footprint and pinout allow direct board-level substitution without layout changes. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical industrial temperature ratings ensure equivalent environmental robustness. |
| Nominal Charge Pump Current | Up to 5 mA (programmable) | Up to 5 mA (programmable) | Charge pump current influences loop bandwidth and phase noise; matching ranges support similar loop filter designs. |
| RF Input Sensitivity | -10 dBm typical | -10 dBm typical | Determines minimum drive level required from the VCO; equal sensitivity means comparable interface requirements. |
| Programmable Modulus (Dual-Modulus Prescaler) | 8/9, 16/17, 32/33, 64/65 | 8/9, 16/17, 32/33, 64/65 | Prescaler options affect achievable division ratios and channel spacing; identical options preserve frequency planning flexibility. |
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 | ADF4107BRU | ADF4106BRUZ |
|---|---|---|
| Part Status | Obsolete | Active |
| Base Product Number | ADF4107 | - |
| Digi Key Programmable | Not Verified | - |
| 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 | 7GHz | 6GHz |
| Divider / Multiplier | No/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 |
| Packaging | Tube | - |
Frequently asked questions
What are the key differences between the ADF4106BRUZ and the ADF4107BRU?
The ADF4106BRUZ is a 6 GHz PLL frequency synthesizer, while the ADF4107BRU is a 7 GHz PLL frequency synthesizer. Both are fractional-N synthesizers from Analog Devices in a 16-lead TSSOP package, but the ADF4107BRU offers a higher maximum RF input frequency (7 GHz vs 6 GHz). The ADF4106BRUZ is specified with a maximum RF input frequency of 6 GHz, and the ADF4107BRU is specified with a maximum RF input frequency of 7 GHz, per Analog Devices datasheets.
Are the ADF4106BRUZ and ADF4107BRU pin-compatible?
Yes. Both devices are offered in the same 16-lead TSSOP (RU-16) package with the same pinout, as documented in the Analog Devices ADF4106 and ADF4107 datasheets. This allows a common PCB footprint, though electrical differences must still be validated for the target design.
Can the ADF4106BRUZ be used as a drop-in replacement for the ADF4107BRU?
Not unconditionally. Although both are 16-lead TSSOP fractional-N PLL synthesizers with the same pinout, the ADF4107BRU supports a higher maximum RF input frequency (7 GHz) than the ADF4106BRUZ (6 GHz). A replacement is only appropriate if the application's RF input frequency and other verified parameters fall within the ADF4106BRUZ specifications.
What is the maximum RF input frequency of each device?
Per Analog Devices datasheets, the ADF4106BRUZ has a maximum RF input frequency of 6 GHz, and the ADF4107BRU has a maximum RF input frequency of 7 GHz.
Do both parts share the same supply voltage and logic interface requirements?
Both devices operate from a 2.7 V to 3.3 V supply and use a 3-wire serial interface (CLK, DATA, LE) for programming, as specified in the Analog Devices ADF4106 and ADF4107 datasheets. Designers should confirm exact supply and interface limits against the respective datasheet for their operating conditions.
What package do the ADF4106BRUZ and ADF4107BRU use?
Both are supplied in a 16-lead TSSOP package. The "RU" suffix in both part numbers denotes the TSSOP package option per Analog Devices ordering information, and the "Z" suffix on ADF4106BRUZ indicates RoHS-compliant lead-free construction.
Are both devices fractional-N PLL synthesizers?
Yes. Both the ADF4106 and ADF4107 are fractional-N PLL frequency synthesizers from Analog Devices, intended for use with an external loop filter, VCO, and reference, as described in their respective datasheets.