Part A
ADF4107BRU
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2399 PCS
- Series
- Clock-Timing - Clock Generators, PLLs, Frequency Synthesizers
Replacement verdict
Compatible functional replacement candidate
The ADF4113BRUZ and ADF4107BRU are both single-channel integer-N PLL frequency synthesizers from Analog Devices in a 16-lead TSSOP package, sharing a compatible supply range and 3-wire serial interface, so the ADF4107BRU can serve as a functional replacement candidate for the ADF4113BRUZ. However, the two devices differ in maximum operating frequency and RF input sensitivity, and the ADF4107BRU offers a wider frequency range while the ADF4113BRUZ provides higher reference input frequency capability. Designers should validate loop filter component values and RF input matching against the target frequency plan before substituting, since the charge pump current settings and prescaler configuration options differ between the two parts.
Package Type
High match
Supply Voltage Range
High match
Maximum Operating Frequency
Validation required
Charge Pump Current
Validation required
Parts at a glance
Part B
ADF4113BRUZ
Công ty 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 | ADF4107BRU | Why it matters |
|---|---|---|---|
| Maximum RF Input Frequency | 4 GHz | 7 GHz | Determines the highest frequency the PLL can synthesize; the ADF4107 supports higher-frequency VCOs and applications. |
| Number of Programmable Counters / Prescaler | 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 achievable division ratios and loop frequency resolution for a given reference. |
| Maximum PFD (Phase Frequency Detector) Frequency | 55 MHz | 104 MHz | Higher PFD frequency enables wider loop bandwidth and lower phase noise, so the ADF4107 suits higher-performance synthesizers. |
| Supply Voltage Range | 2.7 V to 3.3 V | 2.7 V to 3.3 V | Both operate from the same low-voltage supply, simplifying power-rail compatibility in 3 V systems. |
| Package | 16-Lead TSSOP | 16-Lead TSSOP | Identical package and pin count allow drop-in board layout compatibility between the two parts. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same industrial temperature range means equivalent environmental robustness for both devices. |
| Charge Pump Current (Programmable) | Up to 5 mA | Up to 5 mA | Charge pump current sets loop gain and lock time; matching ranges allow similar loop filter design. |
| RF Input Sensitivity | -10 dBm typical | -10 dBm typical | Input sensitivity defines the minimum drive level from the VCO; comparable values ease interchangeability. |
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 | ADF4113BRUZ |
|---|---|---|
| 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 | 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 the ADF4107BRU?
The ADF4113BRUZ is a single integer-N PLL frequency synthesizer specified for RF operation up to 4 GHz, while the ADF4107BRU is a single integer-N PLL synthesizer specified for operation up to 7 GHz. Both are housed in 16-lead TSSOP packages and are controlled via a 3-wire serial interface, but they differ in maximum operating frequency, supply voltage range, and current consumption.
What is the maximum RF input frequency for each device?
The ADF4113BRUZ has a maximum RF input frequency of 4 GHz. The ADF4107BRU has a maximum RF input frequency of 7 GHz. Designs requiring operation above 4 GHz must use the ADF4107BRU or another device rated for the target frequency.
Are the ADF4113BRUZ and ADF4107BRU pin-compatible?
Both devices are offered in a 16-lead TSSOP package, but pin compatibility must be confirmed against the respective manufacturer datasheets before substitution. The pin functions and serial interface timing should be verified for the specific design, as the two parts are not automatically interchangeable solely on the basis of package type.
What supply voltage range does each device support?
The ADF4113BRUZ operates from a supply voltage of 2.7 V to 3.3 V. The ADF4107BRU operates from a supply voltage of 2.7 V to 3.3 V as well. Both devices are specified for the 2.7 V to 3.3 V range, so system supply compatibility should be confirmed against the datasheet for the exact operating conditions of the target design.
How do the current consumption figures compare?
The ADF4113BRUZ typically draws approximately 7 mA from a 3 V supply. The ADF4107BRU typically draws approximately 11 mA from a 3 V supply. The higher current of the ADF4107BRU is consistent with its higher maximum operating frequency, and power budget calculations should use the datasheet values for the selected device.
Do both devices use the same serial interface for programming?
Yes. Both the ADF4113BRUZ and the ADF4107BRU are programmed through a 3-wire serial interface consisting of clock, data, and latch enable signals. The register map and programming sequence should be taken from the respective datasheet, as the bit definitions and register configurations are device-specific.
Can the ADF4113BRUZ be replaced by the ADF4107BRU in an existing design?
Replacement requires verification of the maximum operating frequency, supply current, loop filter component values, and register programming against the ADF4107BRU datasheet. Because the ADF4107BRU supports a higher maximum frequency and draws more supply current, the design must be revalidated for RF performance, power budget, and PLL loop dynamics before substitution.