CC2564MODACMOG.B datasheet(40/68 Pages) TI2

40 / 68 page

CC2564MODN, CC2564MODA

SWRS160E – FEBRUARY 2014 – REVISED JANUARY 2017

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Product Folder Links: CC2564MODN CC2564MODA

Applications, Implementation, and Layout

Figure 6-12. Slow Clock Trace in TI Reference Design

6.2.1.6

Digital Interface Guidelines

6.2.1.6.1 UART

The CC2564MODx UART default baud rate is 115.2 kbps but can run up to 4 Mbps. TI recommends

separating these lines from the DC supply lines, RF lines, and sensitive clock lines and circuitry. To

improve the return path and isolation, run the lines with ground on the adjacent layer when possible.

6.2.1.6.2 PCM

The digital audio lines (pulse-code modulation [PCM]) are high-speed digital lines in which the four wires

(AUD_CLK, AUD_FSYNC, AUD_IN, and AUD_OUT) must be roughly the same length. TI recommends

running these lines as a bus interface (see Figure 6-13). These lines are high-speed digital and must be

separated from DC supply lines, RF lines, and sensitive clock lines and circuitry. Run the lines with ground

on the adjacent layer to improve the return path and isolation.

Figure 6-13. Running the Digital Audio Lines

CC2564MODACMOG.B Datasheet(PDF) 40 Page - Texas Instruments