Part A
ADF4118BRUZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 7756 個数
- Package
- TSSOP-16
- Series
- クロックタイミング - クロックジェネレータ、PLL、周波数シンセサイザ
Replacement verdict
Compatible functional replacement candidate
The ADF4118BRUZ and ADF4106SRU-EP are both single-channel integer-N PLL frequency synthesizers in a 16-lead TSSOP package, sharing a compatible footprint and 3 V supply range, so the ADF4106SRU-EP can serve as a functional replacement candidate for the ADF4118BRUZ. However, the two devices differ in maximum operating frequency, phase detector frequency, and operating temperature range, so the replacement must be validated against the target application's RF and environmental requirements before adoption.
Maximum Operating Frequency
Validation required
Phase Detector Frequency
Validation required
Package Type
High match
Operating Temperature Range
Validation required
Parts at a glance
Part B
ADF4106SRU-EP
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 8217 個数
- Package
- TSSOP-16
- Series
- クロックタイミング - クロックジェネレータ、PLL、周波数シンセサイザ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADF4118BRUZ | ADF4106SRU-EP | Why it matters |
|---|---|---|---|
| Maximum Operating Frequency | 3.0 GHz | 6.0 GHz | Determines the highest input frequency the PLL synthesizer can accept, directly limiting the usable RF range of the design. |
| 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 | The prescaler options affect achievable division ratios and loop resolution for a given reference frequency. |
| Supply Voltage Range | 2.7 V to 3.3 V | 2.7 V to 3.3 V | Defines the compatible power rail for the device; matching ranges allow drop-in replacement without supply redesign. |
| Package / Pin Count | 16-Lead TSSOP | 16-Lead TSSOP | Identical package and pinout enable direct PCB footprint compatibility between the two parts. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Confirms both parts are rated for the same environmental conditions, important for industrial and outdoor applications. |
| Phase Detector Frequency | Up to 55 MHz | Up to 55 MHz | Sets the maximum comparison rate in the phase-frequency detector, influencing loop bandwidth and phase noise performance. |
| Charge Pump Current | Programmable, up to 5 mA | Programmable, up to 5 mA | Charge pump current affects loop filter design and lock time; matching values simplify reuse of the loop filter. |
| Interface | 3-wire serial (SPI-compatible) | 3-wire serial (SPI-compatible) | Same programming interface allows firmware and microcontroller connections to remain unchanged. |
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 | ADF4118BRUZ | ADF4106SRU-EP |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Clock/Frequency Synthesizer (RF) | Frequency Synthesizer |
| 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 | 3GHz | 6GHz |
| Divider / Multiplier | Yes/No | Yes/No |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 3.3V |
| Operating Temperature | -40°C ~ 85°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADF4118BRUZ and the ADF4106SRU-EP?
The ADF4118BRUZ is a fractional-N PLL synthesizer with an integrated VCO, specified for operation from 2.7 V to 3.3 V, in a 16-lead TSSOP package. The ADF4106SRU-EP is a 6 GHz integer-N PLL synthesizer without an integrated VCO, specified for operation from 2.7 V to 3.3 V, in a 16-lead TSSOP package with enhanced product (EP) qualification. The primary differences are the synthesizer architecture (fractional-N with integrated VCO versus integer-N without VCO) and the EP qualification of the ADF4106SRU-EP.
Can the ADF4118BRUZ and ADF4106SRU-EP be used as direct substitutes for each other?
No. The ADF4118BRUZ includes an integrated VCO and uses fractional-N architecture, while the ADF4106SRU-EP is an integer-N synthesizer requiring an external VCO. Their functional blocks, external component requirements, and loop filter design differ, so they are not direct substitutes without redesign and validation.
What is the maximum RF input frequency of the ADF4106SRU-EP?
The ADF4106SRU-EP is specified for RF input frequencies up to 6 GHz, per the Analog Devices datasheet.
What frequency range does the ADF4118BRUZ cover?
The ADF4118BRUZ integrates a VCO covering a specified frequency range as documented in the Analog Devices datasheet; the RF input and VCO output ranges should be confirmed against the current datasheet revision for the exact limits.
Do both devices use the same package and pinout?
Both are offered in a 16-lead TSSOP package, but the pin functions are not identical because the ADF4118BRUZ includes an integrated VCO and fractional-N architecture while the ADF4106SRU-EP is an integer-N synthesizer. Pin assignments must be verified against each device's datasheet before any layout reuse.
What does the "EP" suffix indicate on the ADF4106SRU-EP?
The "EP" designation indicates enhanced product qualification by Analog Devices, which typically includes additional testing and qualification for applications requiring higher reliability. Specific qualification details should be confirmed in the Analog Devices enhanced product documentation.
What supply voltage range do both devices support?
Both the ADF4118BRUZ and ADF4106SRU-EP are specified for a supply voltage range of 2.7 V to 3.3 V, per their respective Analog Devices datasheets.
Which device is better suited for a design requiring an integrated VCO?
The ADF4118BRUZ is the appropriate choice when an integrated VCO is required, since it includes an on-chip VCO. The ADF4106SRU-EP does not include a VCO and requires an external VCO in the design.