SI5348B-E-GMR

Product Overview

Category: Integrated Circuit (IC)

Use: Clock Generator and Jitter Attenuator

Characteristics: - High-performance clock generation and jitter attenuation - Flexible frequency synthesis and distribution - Low phase noise and jitter - Wide operating range - Programmable features for customization

Package: 24-pin QFN (Quad Flat No-Lead) package

Essence: The SI5348B-E-GMR is a highly versatile clock generator and jitter attenuator IC. It provides precise clock signals with low phase noise and jitter, making it suitable for various applications that require accurate timing.

Packaging/Quantity: The SI5348B-E-GMR is available in a 24-pin QFN package. It is typically sold in reels containing multiple units.

Specifications

• Frequency Range: 1 Hz to 945 MHz
• Number of Outputs: 12
• Output Types: LVCMOS, LVDS, LVPECL, HCSL
• Supply Voltage: 2.5 V to 3.3 V
• Operating Temperature Range: -40°C to +85°C
• Phase Noise: < -150 dBc/Hz at 100 kHz offset
• Jitter Attenuation: > 50 dB at 10 kHz offset

Pin Configuration

The SI5348B-E-GMR has a total of 24 pins. The pin configuration is as follows:

1. XAXB0: Differential output pair A
2. XAXB1: Differential output pair A
3. XAXB2: Differential output pair A
4. XAXB3: Differential output pair A
5. XAXB4: Differential output pair B
6. XAXB5: Differential output pair B
7. XAXB6: Differential output pair B
8. XAXB7: Differential output pair B
9. XAXB8: Differential output pair C
10. XAXB9: Differential output pair C
11. XAXB10: Differential output pair C
12. XAXB11: Differential output pair C
13. VDD: Power supply voltage
14. GND: Ground
15. SDA: I2C serial data input
16. SCL: I2C serial clock input
17. REFCLK: Reference clock input
18. XTALN: Crystal oscillator negative terminal
19. XTALP: Crystal oscillator positive terminal
20. NC: No connection
21. NC: No connection
22. NC: No connection
23. NC: No connection
24. NC: No connection

Functional Features

• Frequency synthesis and distribution with high accuracy
• Programmable output formats and frequencies
• Jitter attenuation for improved signal quality
• Integrated crystal oscillator interface
• I2C interface for configuration and control

Advantages and Disadvantages

Advantages: - High-performance clock generation and jitter attenuation - Wide operating range and flexible frequency synthesis - Programmable features allow customization for specific applications - Low phase noise and jitter for improved signal integrity

Disadvantages: - Requires external crystal oscillator for reference clock input - Limited number of output types compared to some other clock generator ICs

Working Principles

The SI5348B-E-GMR utilizes a combination of frequency synthesis and jitter attenuation techniques to generate precise clock signals. It takes an external reference clock and uses internal PLLs (Phase-Locked Loops) to synthesize multiple output frequencies. The integrated jitter attenuator further reduces any unwanted noise or jitter in the generated clock signals, resulting in high-quality timing signals.

Detailed Application Field Plans

The SI5348B-E-GMR is widely used in various applications that require accurate clock signals, such as: - Telecommunications equipment - Networking devices - Data centers - Test and measurement instruments - Industrial automation systems

Detailed and Complete Alternative Models

Some alternative models to the SI5348B-E-GMR include: - SI5347A-E-GMR - SI5346B-E-GMR - SI5345C-E-GMR - SI5344D-E-GMR

These alternative models offer similar functionality and performance but may have different pin configurations or additional features.

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