LMX2346SLBX/NOPB

Overview

Category

LMX2346SLBX/NOPB belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for frequency synthesis and modulation applications.

Characteristics

• Package: LQFP
• Essence: Integrated frequency synthesizer
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications and Parameters

The LMX2346SLBX/NOPB has the following specifications and parameters:

• Frequency Range: 10 MHz to 3.5 GHz
• Supply Voltage: 2.7V to 5.5V
• Phase Noise: -110 dBc/Hz @ 1 MHz offset
• Output Power: +5 dBm
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The pin configuration of LMX2346SLBX/NOPB is as follows:

1. VCC
2. GND
3. RF_IN
4. XTAL_IN
5. XTAL_OUT
6. VCO_TUNE
7. VCO_SEL
8. LOCK_DETECT
9. LD_DIGITAL
10. LD_ANALOG
11. CP_OUT
12. CP_IN
13. LE
14. DATA
15. CLK
16. RESET

Functional Characteristics

The LMX2346SLBX/NOPB offers the following functional characteristics:

• Frequency synthesis and modulation capabilities
• Low phase noise performance
• Wide frequency range coverage
• Digital and analog lock detection
• On-chip voltage-controlled oscillator (VCO)
• Programmable charge pump current

Advantages and Disadvantages

Advantages: - Wide frequency range allows for versatile applications - Low phase noise ensures high-quality signal output - Integrated VCO simplifies circuit design - Digital and analog lock detection for reliable operation

Disadvantages: - Limited output power (+5 dBm) - Requires external crystal oscillator for frequency reference

Applicable Range of Products

LMX2346SLBX/NOPB is suitable for various electronic devices that require frequency synthesis and modulation, such as wireless communication systems, satellite receivers, and test equipment.

Working Principles

The LMX2346SLBX/NOPB operates by generating a stable and precise frequency output based on the input reference frequency. It utilizes a phase-locked loop (PLL) architecture to achieve frequency synthesis and modulation.

Detailed Application Field Plans

The LMX2346SLBX/NOPB can be applied in the following fields:

1. Wireless Communication Systems: Used for frequency generation and modulation in cellular networks, Wi-Fi routers, and Bluetooth devices.
2. Satellite Receivers: Enables precise frequency tuning and modulation in satellite TV receivers and GPS devices.
3. Test Equipment: Provides accurate frequency signals for testing and calibration purposes in laboratory instruments and measurement tools.

Detailed Alternative Models

Some alternative models to LMX2346SLBX/NOPB include:

1. LMX2594: Higher frequency range (up to 15 GHz) with improved phase noise performance.
2. LMX9838: Integrated Bluetooth frequency synthesizer with additional audio capabilities.
3. LMX5250: Dual-channel frequency synthesizer for multi-band applications.

5 Common Technical Questions and Answers

1. Q: What is the maximum output power of LMX2346SLBX/NOPB? A: The maximum output power is +5 dBm.

2. Q: Can LMX2346SLBX/NOPB operate at temperatures below freezing point? A: Yes, it has an operating temperature range of -40°C to +85°C.

3. Q: Does LMX2346SLBX/NOPB require an external crystal oscillator? A: Yes, it requires an external crystal oscillator for frequency reference.

4. Q: What is the purpose of the lock detection pins? A: The lock detection pins provide digital and analog signals to indicate the PLL's locked state.

5. Q: Can LMX2346SLBX/NOPB be used in wireless communication systems? A: Yes, it is suitable for wireless communication systems that require frequency synthesis and modulation.

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