Part A
ADF4107BRUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7234 PCS
- Series
- Clock-Timing - Clock Generators, PLLs, Frequency Synthesizers
Replacement verdict
Compatible functional replacement candidate
The ADF4113BRUZ and ADF4107BRUZ are both single PLL frequency synthesizers from Analog Devices in the same 16-lead TSSOP package, sharing a common footprint and 3 V supply architecture. The ADF4107BRUZ offers a higher maximum RF input frequency (7 GHz versus 4 GHz) and a wider operating temperature range, making it a viable functional upgrade candidate for the ADF4113BRUZ in most synthesizer designs, provided the higher frequency capability and slightly different current consumption are acceptable for the target application.
Package Type
High match
Supply Voltage Range
High match
Maximum RF Input Frequency
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
ADF4113BRUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5428 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 | ADF4113BRUZ | ADF4107BRUZ | Why it matters |
|---|---|---|---|
| Maximum RF Input Frequency | 4 GHz | 7 GHz | Determines the highest frequency the PLL synthesizer can operate at; the ADF4107 supports higher-frequency applications. |
| Maximum PFD (Phase Frequency Detector) Frequency | 55 MHz | 104 MHz | A higher PFD frequency allows wider loop bandwidth and lower phase noise, affecting overall synthesizer performance. |
| Number of Programmable Counters / Modulus | Dual-modulus prescaler 8/9, 16/17, 32/33, 64/65 | Dual-modulus prescaler 8/9, 16/17, 32/33, 64/65 | Prescaler options affect the achievable division ratios and frequency planning flexibility. |
| 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 3 V systems. |
| Package | 16-Lead TSSOP | 16-Lead TSSOP | Package footprint and pinout affect board layout and drop-in compatibility. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Indicates the environmental range over which the device is specified to operate reliably. |
| Charge Pump Current (Programmable) | Up to 5 mA | Up to 5 mA | Charge pump current influences loop filter design and lock time. |
| Interface | 3-wire serial (SPI-compatible) | 3-wire serial (SPI-compatible) | Programming interface compatibility determines whether the same microcontroller code can drive both parts. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADF4107BRUZ | ADF4113BRUZ |
|---|---|---|
| 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 | 4GHz |
| Divider / Multiplier | No/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 |
| Packaging | Tube | - |
Frequently asked questions
What are the key differences between the ADF4113BRUZ and ADF4107BRUZ?
The ADF4113BRUZ is a single fractional-N PLL synthesizer with an integrated VCO operating up to 4 GHz, while the ADF4107BRUZ is a 7 GHz integer-N PLL frequency synthesizer without an integrated VCO. The ADF4113 offers fractional-N capability and on-chip VCO, whereas the ADF4107 provides higher maximum RF input frequency and requires an external VCO.
What is the maximum RF input frequency for each device?
The ADF4113BRUZ supports RF input frequencies up to 4 GHz. The ADF4107BRUZ supports RF input frequencies up to 7 GHz.
Do both devices use the same package and pinout?
Both devices are offered in a 16-lead TSSOP package (RU suffix). However, pin functions and internal architecture differ because the ADF4113 includes an integrated VCO and fractional-N modulator, while the ADF4107 is an integer-N synthesizer requiring an external VCO. PCB layouts and pin connections are not interchangeable without design verification.
What is the difference between fractional-N and integer-N architecture in these parts?
The ADF4113BRUZ uses a fractional-N architecture, allowing finer frequency resolution and potentially lower phase noise for a given comparison frequency. The ADF4107BRUZ uses an integer-N architecture, where the output frequency is an integer multiple of the phase detector comparison frequency.
What supply voltage range do the ADF4113BRUZ and ADF4107BRUZ require?
Both devices operate from a 2.7 V to 3.3 V supply. The ADF4113BRUZ includes an integrated VCO that also operates within this supply range, while the ADF4107BRUZ requires an external VCO with its own supply considerations.
Can the ADF4113BRUZ and ADF4107BRUZ be used in the same application?
They serve different roles. The ADF4113BRUZ is suited for compact designs requiring an integrated VCO and fractional-N resolution up to 4 GHz. The ADF4107BRUZ is suited for higher-frequency applications up to 7 GHz where an external VCO is acceptable. They are not direct substitutes and require different external circuitry.
What are the typical applications for each device?
The ADF4113BRUZ is typically used in wireless infrastructure, test equipment, and cable TV tuners where integrated VCO and fractional-N synthesis are beneficial. The ADF4107BRUZ is typically used in microwave point-to-point radios, satellite communications, and instrumentation requiring integer-N synthesis up to 7 GHz.