Part A
ADF4116BRU
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 6377 PCS
- Series
- Horloge Timing - générateur d'horloge, PLL, synthétiseur de fréquence
Replacement verdict
Compatible functional replacement candidate
The ADF4113BRUZ and ADF4116BRU are both single-channel integer-N PLL frequency synthesizers from Analog Devices in the same 16-lead TSSOP package, sharing a common pinout and 3 V supply architecture, so the ADF4116BRU can serve as a functional replacement candidate for the ADF4113BRUZ in many designs. However, the two devices differ in maximum operating frequency and RF input sensitivity, so the target loop frequency and input signal level must be validated against the ADF4116BRU's lower frequency ceiling before substitution is approved.
Maximum Operating Frequency
Validation required
Package Type
High match
Supply Voltage Range
High match
RF Input Sensitivity
Validation required
Parts at a glance
Part B
ADF4113BRUZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5428 PCS
- Package
- TSSOP-16
- Series
- Horloge Timing - générateur d'horloge, PLL, synthétiseur de fréquence
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 | ADF4116BRU | Why it matters |
|---|---|---|---|
| Maximum RF Input Frequency | 4 GHz | 550 MHz | Determines the highest frequency the PLL can lock to; the ADF4113 supports much higher frequency operation than the ADF4116. |
| 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 the achievable division ratios and loop frequency resolution for a given reference. |
| 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, so power-rail compatibility is maintained between the two parts. |
| Package | 16-Lead TSSOP | 16-Lead TSSOP | Identical package and pin count allow drop-in board-level substitution without layout changes. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Matching industrial temperature ranges ensure equivalent environmental robustness in the target application. |
| Charge Pump Current (Programmable) | Programmable, up to 5 mA | Programmable, up to 5 mA | Charge pump current sets loop bandwidth and phase noise performance; equivalent ranges support similar loop filter design. |
| Reference Input Frequency | Up to 250 MHz | Up to 250 MHz | Reference input capability defines the maximum phase detector comparison rate and resulting step size. |
| Interface | 3-wire serial (SPI-compatible) | 3-wire serial (SPI-compatible) | Same serial programming interface means firmware and microcontroller connections remain compatible. |
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 | ADF4116BRU | ADF4113BRUZ |
|---|---|---|
| Part Status | Obsolete | Active |
| 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 | 550MHz | 4GHz |
| Divider / Multiplier | Yes/No | Yes/No |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | ADF4116 | - |
Frequently asked questions
What are the key differences between the ADF4113BRUZ and ADF4116BRU?
The ADF4113BRUZ is a 4.0 GHz fractional-N PLL synthesizer with an integrated VCO, while the ADF4116BRU is a 1.8 GHz fractional-N PLL synthesizer without an integrated VCO. The ADF4113BRUZ operates up to 4.0 GHz and includes a complete VCO, whereas the ADF4116BRU requires an external VCO and operates up to 1.8 GHz. Both are manufactured by Analog Devices and use a 16-lead TSSOP package.
Are the ADF4113BRUZ and ADF4116BRU pin-compatible?
No, the ADF4113BRUZ and ADF4116BRU are not pin-compatible. The ADF4113BRUZ integrates a VCO and has a different pinout than the ADF4116BRU, which requires an external VCO. The pin functions and PCB land patterns differ, so they cannot be directly substituted without design changes.
What is the maximum operating frequency of each device?
The ADF4113BRUZ operates up to 4.0 GHz, while the ADF4116BRU operates up to 1.8 GHz. These frequencies refer to the maximum RF input frequency of the PLL synthesizer.
Do both devices support fractional-N synthesis?
Yes, both the ADF4113BRUZ and ADF4116BRU are fractional-N PLL synthesizers. They support fractional-N operation, allowing finer frequency resolution compared to integer-N synthesizers.
What package type do the ADF4113BRUZ and ADF4116BRU use?
Both the ADF4113BRUZ and ADF4116BRU are available in a 16-lead TSSOP package. The "RU" suffix in both part numbers indicates the TSSOP package option.
Can the ADF4116BRU be used as a drop-in replacement for the ADF4113BRUZ?
No, the ADF4116BRU cannot be used as a drop-in replacement for the ADF4113BRUZ. The ADF4113BRUZ includes an integrated VCO and operates up to 4.0 GHz, while the ADF4116BRU requires an external VCO and operates only up to 1.8 GHz. The pinouts, external component requirements, and frequency ranges differ, so a redesign is required.
What is the difference in external component count between the two devices?
The ADF4113BRUZ integrates a VCO, reducing the external component count compared to the ADF4116BRU, which requires an external VCO and associated loop filter components. This makes the ADF4113BRUZ more suitable for compact designs where board space is limited.
Are both devices RoHS compliant?
Yes, both the ADF4113BRUZ and ADF4116BRU are RoHS compliant. The "Z" suffix in the ADF4113BRUZ part number indicates RoHS compliance, and the ADF4116BRU is also manufactured to RoHS standards by Analog Devices.