Part A
ADF4113BRUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5428 PCS
- Package
- TSSOP-16
- Series
- Horário - Geradores de relógios, PLLs, Sintetizadores de Frequências
Replacement verdict
Compatible functional replacement candidate
The ADF4113BRUZ and ADF4153BRU are both single-channel integer-N PLL frequency synthesizers from Analog Devices in a 16-lead TSSOP package, sharing the same supply range and 3-wire serial interface, so the ADF4153BRU is a viable functional replacement candidate for the ADF4113BRUZ in many designs. However, the two parts differ in maximum operating frequency and in some electrical and functional characteristics, so the replacement should be validated against the target application's frequency plan, loop filter, and register map before adoption.
Package Type
High match
Supply Voltage Range
High match
Maximum Operating Frequency
Validation required
Register Map and Control Interface
Validation required
Parts at a glance
Part B
ADF4153BRU
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6126 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 | ADF4113BRUZ | ADF4153BRU | Why it matters |
|---|---|---|---|
| Maximum RF Input Frequency | 4 GHz | 4 GHz | Both devices support up to 4 GHz, so they cover the same upper frequency range for PLL synthesizer applications. |
| Number of Programmable Counters / Fractional Capability | Integer-N only (dual modulus prescaler) | Fractional-N (with integer mode) | The ADF4153 supports fractional-N synthesis, enabling finer frequency resolution and lower phase noise than the integer-N-only ADF4113, which affects loop filter design and channel spacing. |
| Phase Detector Frequency (PFD) | Up to 55 MHz | Up to 32 MHz | A higher PFD allows a higher reference comparison rate, which can reduce phase noise and lock time; the ADF4113 offers a higher maximum PFD. |
| Supply Voltage Range | 2.7 V to 3.3 V | 2.7 V to 3.3 V | Both operate over the same 2.7 V to 3.3 V range, so they are compatible with the same low-voltage system rails. |
| Package | 16-Lead TSSOP | 16-Lead TSSOP | Identical package and pin count allow drop-in board-level compatibility without layout changes. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Matching industrial temperature ranges ensure both parts suit the same environmental conditions. |
| Charge Pump Current (Programmable) | Programmable, up to 5 mA | Programmable, up to 5 mA | Similar charge pump current ranges allow comparable loop filter design and lock-time performance. |
| Control Interface | 3-wire serial (SPI-compatible) | 3-wire serial (SPI-compatible) | Both use the same 3-wire serial programming interface, simplifying firmware reuse across designs. |
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 | ADF4113BRUZ | ADF4153BRU |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Clock/Frequency Synthesizer (RF) | Fractional N 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 | 4GHz | 4GHz |
| Divider / Multiplier | Yes/No | No/Yes |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 3.3V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADF4113BRUZ and ADF4153BRU?
The ADF4113BRUZ is a fractional-N PLL synthesizer with an integrated VCO operating up to 4 GHz, while the ADF4153BRU is a fractional-N PLL synthesizer without an integrated VCO, requiring an external VCO and operating up to 4 GHz. The ADF4113BRUZ integrates the VCO on-chip, whereas the ADF4153BRU provides only the PLL and requires an external VCO for the RF signal generation.
Are the ADF4113BRUZ and ADF4153BRU pin-compatible?
No. The ADF4113BRUZ and ADF4153BRU are not pin-compatible. The ADF4113BRUZ includes an integrated VCO and has a different pinout and package configuration compared to the ADF4153BRU, which is a PLL-only device. They cannot be used as drop-in replacements for each other.
What is the maximum RF output frequency of each device?
The ADF4113BRUZ has an integrated VCO with an RF output frequency range up to 4 GHz. The ADF4153BRU is a PLL synthesizer that can operate with an external VCO up to 4 GHz. Both devices support RF frequencies up to 4 GHz, but the ADF4113BRUZ includes the VCO on-chip while the ADF4153BRU requires an external VCO.
Do both devices support fractional-N operation?
Yes. Both the ADF4113BRUZ and ADF4153BRU are fractional-N PLL synthesizers. The ADF4113BRUZ integrates a fractional-N PLL with an on-chip VCO, while the ADF4153BRU is a fractional-N PLL synthesizer that requires an external VCO. Both support fractional-N modulus operation for fine frequency resolution.
What package type do the ADF4113BRUZ and ADF4153BRU use?
Both the ADF4113BRUZ and ADF4153BRU are offered in 16-lead TSSOP packages. The "RU" suffix in both part numbers indicates the TSSOP package option. However, despite the same package type, the pin functions differ due to the integrated VCO in the ADF4113BRUZ versus the PLL-only configuration of the ADF4153BRU.
Can the ADF4153BRU be used as a replacement for the ADF4113BRUZ in an existing design?
No, not as a direct replacement. The ADF4113BRUZ includes an integrated VCO, while the ADF4153BRU requires an external VCO. A design using the ADF4113BRUZ would need to be modified to add an external VCO and adjust the loop filter and PCB layout to accommodate the ADF4153BRU. The two devices are not functionally interchangeable without design changes.
What are the typical applications for each device?
The ADF4113BRUZ, with its integrated VCO, is typically used in compact RF systems where board space is limited, such as wireless infrastructure, satellite communications, and instrumentation. The ADF4153BRU, as a PLL-only device, is used in applications requiring flexibility in VCO selection, such as base stations, microwave point-to-point links, and test equipment where an external VCO is preferred for performance optimization.