SNAA400 March   2025 CDC6C , LMK6C , LMK6D , LMK6H , LMK6P

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2BAW Overview
    1. 2.1 BAW Oscillator Advantages
    2. 2.2 BAW Oscillator Overview
  6. 3LMK6C Clocking Sitara AM64 Jitter Test
    1. 3.1 Jitter Test Set Up
  7. 4Generic Guide for Clocking AM6x and TDA4x Families
  8. 5Summary
  9. 6References

2.2 BAW Oscillator Overview

The CDC6C and the LMK6C incorporate the BAW as the resonator source. These devices are factory programmed and capable of producing large range of frequencies up to 200MHz. Figure 2-2 illustrates the simplified structure of the BAW oscillators. As each of these BAW oscillators have different use cases Table 2-3 illustrates the differences.

Simplified Block Diagram Figure 2-2 Simplified Block Diagram
Table 2-3 LMK6C and CDC6C Comparison Overview
Parameter LMK6C CDC6C
Output frequency range Any frequency between 1MHz and 200MHz Select frequencies between 250kHz and 200MHz
RMS jitter maximum1 0.5ps 1ps
Start up time maximum 5ms 3ms
Operating temperature range -40 C to 105 C -40 C to 105C
Current consumption maximum at 100MHz and 1.8V 59mA 7.2mA
Device supply voltage options 1.8V

2.5V to 3.3V

 1.8V - 3.3V
Package size options 3.2mm x 2.5mm

2.5mm x 2.0mm

 3.2mm x 2.5mm

2.5mm x 2.0mm

2.0mm x 1.6mm

1.6mm x 1.2mm
(1) Fout ≥ 25MHz; Integration BW: 12kHz - 20MHz