Overview
The ADF4153BRUZ-RL7 is a fractional-N frequency synthesizer produced by Analog Devices Inc. This component is designed to implement local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It features a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider, along with a Σ-Δ based fractional interpolator for programmable fractional-N division.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Supply Voltage (AVDD, DVDD, SDVDD) | 2.7 to 3.3 | V | Minimum and Maximum |
| Current Consumption (IDD) | 24 mA (max), 20 mA (typical) | mA | Active mode |
| Low Power Sleep Mode Current | 1 µA (typical) | µA | Sleep mode |
| Output High Voltage (VOH) | 1.4 V (min) | V | Open-drain with 1 kΩ pull-up to 1.8 V |
| Output Low Voltage (VOL) | 0.4 V (max) | V | IOL = 500 µA |
| Normalized Phase Noise Floor (PNSYNTH) | -220 dBc/Hz (typical) | dBc/Hz | PLL loop BW = 500 kHz |
| Normalized 1/f Noise (PN1_f) | -114 dBc/Hz (typical) | dBc/Hz | Measured at 10 kHz offset, normalized to 1 GHz |
| Phase Noise Performance @ VCO output 1750 MHz | -102 dBc/Hz (typical) | dBc/Hz |
Key Features
- Pin-compatible with ADF4110/ADF4111/ADF4112/ADF4113 and ADF4106: Ensures easy integration and compatibility with existing designs.
- Consistent RF output phase: Maintains stable phase output, crucial for wireless communication systems.
- Loop filter design possible with ADIsimPLL: Allows for customized loop filter design using Analog Devices' simulation tool.
- Qualified for automotive applications: Meets the quality and reliability requirements for automotive use.
- Σ-Δ based fractional interpolator: Enables programmable fractional-N division for flexible frequency synthesis.
- Low noise digital phase frequency detector (PFD) and precision charge pump: Minimizes noise and ensures accurate frequency detection and adjustment.
- Programmable reference divider and counters: Includes a 4-bit R counter, 9-bit N counter, 12-bit FRAC counter, and 12-bit modulus counter for precise frequency control.
Applications
- CATV equipment: Used in cable television systems for frequency synthesis.
- Base stations for mobile radio (GSM, PCS, DCS, WiMAX, SuperCell 3G, CDMA, W-CDMA): Essential for wireless communication infrastructure.
- Wireless handsets (GSM, PCS, DCS, CDMA, W-CDMA): Implemented in mobile devices for reliable frequency synthesis.
- Wireless LANs and PMR Communications: Used in wireless local area networks and private mobile radio systems.
- Communications test equipment: Utilized in testing and measurement equipment for wireless communications.
Q & A
- What is the primary function of the ADF4153BRUZ-RL7?
The ADF4153BRUZ-RL7 is a fractional-N frequency synthesizer designed to implement local oscillators in wireless receivers and transmitters.
- What are the key components of the ADF4153BRUZ-RL7?
It includes a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider, along with a Σ-Δ based fractional interpolator.
- What is the supply voltage range for the ADF4153BRUZ-RL7?
The supply voltage range is from 2.7 V to 3.3 V.
- What is the typical current consumption of the ADF4153BRUZ-RL7 in active mode?
The typical current consumption is 20 mA.
- Is the ADF4153BRUZ-RL7 qualified for automotive applications?
Yes, it is qualified for automotive applications and meets the necessary quality and reliability requirements.
- What types of counters are included in the ADF4153BRUZ-RL7?
It includes a 4-bit R counter, a 9-bit N counter, a 12-bit FRAC counter, and a 12-bit modulus counter.
- What is the normalized phase noise floor of the ADF4153BRUZ-RL7?
The normalized phase noise floor is -220 dBc/Hz (typical) at a PLL loop bandwidth of 500 kHz.
- In what types of equipment is the ADF4153BRUZ-RL7 commonly used?
It is commonly used in CATV equipment, base stations for mobile radio, wireless handsets, wireless LANs, PMR communications, and communications test equipment.
- Can the ADF4153BRUZ-RL7 be used in low power applications?
Yes, it has a low power sleep mode with a typical current consumption of 1 µA.
- Is the ADF4153BRUZ-RL7 pin-compatible with other models?
Yes, it is pin-compatible with ADF4110/ADF4111/ADF4112/ADF4113 and ADF4106.
