Part A
ADF4107BRUZ
ADI公司
- Lifecycle
- Active
- Stock
- 7234 件
- Series
- 時鐘定時-時鐘發生器、PLL、頻率合成器
Replacement verdict
Compatible functional replacement candidate
The ADF4106BRUZ and ADF4107BRUZ are functionally compatible PLL frequency synthesizers sharing the same TSSOP-16 package, supply range, and three-wire serial interface, with the ADF4107BRUZ offering a higher maximum RF input frequency. The ADF4107BRUZ can serve as a functional replacement candidate for the ADF4106BRUZ in applications requiring an extended input frequency range, subject to validation of the RF front-end and loop filter design.
Package Type
High match
Supply Voltage Range
High match
Maximum RF Input Frequency
Validation required
Serial Interface Compatibility
High match
Parts at a glance
Part B
ADF4106BRUZ
ADI公司
- Lifecycle
- Active
- Stock
- 2980 件
- Package
- TSSOP-16
- 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 | ADF4106BRUZ | ADF4107BRUZ | Why it matters |
|---|---|---|---|
| Maximum RF Input Frequency | 6 GHz | 7 GHz | Determines the highest frequency the PLL synthesizer can operate at; the ADF4107 supports higher-frequency applications. |
| Maximum PFD Frequency | 104 MHz | 104 MHz | Sets the phase frequency detector comparison rate, which affects phase noise and lock time performance. |
| Normalized Phase Noise Floor | -219 dBc/Hz | -219 dBc/Hz | A lower phase noise floor improves spectral purity of the synthesized signal, critical for RF system performance. |
| Supply Voltage Range | 2.7 V to 3.3 V | 2.7 V to 3.3 V | Defines the operating voltage window; both parts are compatible with common 3 V digital and RF supply rails. |
| Package | 16-Lead TSSOP | 16-Lead TSSOP | Identical package and pinout allow drop-in board-level substitution without layout changes. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms both parts are rated for industrial temperature environments. |
| Programmable Charge Pump Current | 0.625 mA to 5 mA | 0.625 mA to 5 mA | Charge pump current range affects loop filter design and achievable lock time and phase noise. |
| Number of Programmable Counters | Dual modulus prescaler 8/9, 16/17, 32/33, 64/65 | Dual modulus prescaler 8/9, 16/17, 32/33, 64/65 | Prescaler options determine the achievable division ratios and frequency synthesis flexibility. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADF4107BRUZ | ADF4106BRUZ |
|---|---|---|
| Part Status | Active | 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 ADF4107BRUZ PLL frequency synthesizers?
The ADF4106BRUZ and ADF4107BRUZ are both 20-lead TSSOP fractional-N PLL frequency synthesizers from Analog Devices. The primary difference is the maximum RF input frequency: the ADF4106BRUZ operates up to 6 GHz, while the ADF4107BRUZ operates up to 7 GHz. Both share the same package, pinout, and register architecture, but the ADF4107BRUZ supports a higher prescaler frequency range for higher-frequency applications.
Are the ADF4106BRUZ and ADF4107BRUZ pin-compatible and package-compatible?
Yes. Both devices are offered in the same 20-lead TSSOP (RU-20) package with identical pin assignments, allowing them to share the same PCB footprint. However, pin compatibility does not guarantee electrical interchangeability; the higher maximum operating frequency of the ADF4107BRUZ must be validated against the target design's frequency plan and loop filter.
What is the maximum RF input frequency for each device?
Per Analog Devices datasheets, the ADF4106BRUZ has a maximum RF input frequency of 6 GHz, and the ADF4107BRUZ has a maximum RF input frequency of 7 GHz. Designs operating above 6 GHz must use the ADF4107BRUZ or a higher-frequency device.
Do both devices support the same fractional-N modulus and programmable prescaler?
Both devices use a fractional-N architecture with a programmable dual-modulus prescaler (8/9, 16/17, 32/33, or 64/65) and share the same register map and serial interface. The fractional modulus and reference divider settings are configured identically, so firmware written for one device is generally portable to the other, subject to frequency-range validation.
Can the ADF4107BRUZ directly replace the ADF4106BRUZ in an existing design?
In many cases yes, because the package, pinout, and register architecture are the same. However, the replacement must be validated: confirm the VCO and loop filter are stable at the higher 7 GHz capability, verify supply and charge pump settings, and re-check phase noise and lock time against the datasheet specifications for the ADF4107BRUZ.
What supply voltage and current consumption do these devices require?
Both the ADF4106BRUZ and ADF4107BRUZ operate from a 2.7 V to 3.3 V supply (3.0 V to 3.6 V typical for RF performance) and draw approximately 10 mA to 11 mA typical, depending on configuration. Always confirm exact limits in the respective Analog Devices datasheet before finalizing the power budget.
Which device should be selected for a 6.5 GHz local oscillator design?
A 6.5 GHz design exceeds the 6 GHz maximum RF input of the ADF4106BRUZ, so the ADF4107BRUZ, rated to 7 GHz, is the appropriate choice. The ADF4106BRUZ should only be used where the RF input remains at or below 6 GHz.