Overview
The LMX2531LQX2570E/NOPB is a high-performance frequency synthesizer system developed by Texas Instruments. This monolithic integrated circuit is fabricated in an advanced BiCMOS process, offering superior performance and reliability. The device is designed to generate very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. It features a fractional-N Delta-Sigma modulator, which provides higher supply-noise immunity and more consistent performance. The LMX2531 is available in various versions to accommodate different frequency bands, making it versatile for a range of applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Part Number | LMX2531LQX2570E/NOPB | |
| Package Type | WQFN-36 (6x6) | |
| No. of Terminals | 36 | |
| Surface Mount | Yes | |
| Technology | BiCMOS | |
| Supply Voltage (V) | 2.8 - 3.2 V | |
| Operating Temperature | -40°C to 85°C | |
| Maximum Output Frequency | 2.79 GHz | |
| Maximum Supply Current (Isup) | 49 mA | |
| Power-Down Current | Low | |
| Phase Noise | -96 dBc/Hz at 10 kHz offset, -121 dBc/Hz at 100 kHz offset, -142 dBc/Hz at 1 MHz offset | |
| Output Power to a 50-Ω Load | -1 to 6 dBm |
Key Features
- Fractional-N Delta-Sigma Modulator for higher supply-noise immunity and consistent performance.
- Programmable up to Fourth Order for FastLock/Cycle Slip Reduction with Timeout Counter.
- Partially Integrated, Adjustable Loop Filter.
- Very Low Phase Noise and Spurs.
- Integrated Tank Inductor.
- Low Phase Noise.
- Low Operating Current and Low Power-Down Current.
- 2.8-V to 3.2-V Operation.
- MICROWIRE serial interface for programming.
- FastLock or general-purpose output through an open-drain NMOS output.
Applications
- Wireless Communication Devices.
- Automotive Systems.
- CATV Equipment.
- Instrumentation and Test Equipment.
- RFID Readers.
- Data Converter Clocking.
Q & A
- What is the LMX2531LQX2570E/NOPB used for?
The LMX2531LQX2570E/NOPB is used as a high-performance frequency synthesizer system in various applications, including wireless communication devices, automotive systems, CATV equipment, instrumentation, and RFID readers.
- What is the operating voltage range of the LMX2531LQX2570E/NOPB?
The operating voltage range is 2.8-V to 3.2-V.
- What is the maximum output frequency of the LMX2531LQX2570E/NOPB?
The maximum output frequency is 2.79 GHz.
- What technology is used in the fabrication of the LMX2531LQX2570E/NOPB?
The device is fabricated in an advanced BiCMOS process.
- What is the phase noise performance of the LMX2531LQX2570E/NOPB?
The phase noise is -96 dBc/Hz at 10 kHz offset, -121 dBc/Hz at 100 kHz offset, and -142 dBc/Hz at 1 MHz offset.
- What is the typical supply current of the LMX2531LQX2570E/NOPB?
The maximum supply current (Isup) is 49 mA.
- Does the LMX2531LQX2570E/NOPB support FastLock feature?
Yes, it supports FastLock/Cycle Slip Reduction with Timeout Counter.
- What is the package type of the LMX2531LQX2570E/NOPB?
The package type is WQFN-36 (6x6).
- Is the LMX2531LQX2570E/NOPB RoHS compliant?
Yes, it is RoHS compliant.
- What is the operating temperature range of the LMX2531LQX2570E/NOPB?
The operating temperature range is -40°C to 85°C.
