User's Manual

Data Sheet: CR Series

JukeBlox Networked Media Modules

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15

2011 - Page 22 of 26

9.1.1 Power up, Reset and Power Down Timing

Time

Voltage

NRESET_MOD

+1.2V

+3.3V

< 300ms

>= 2ms

Power Up Power Down



9.2 RF Considerations

Note that overall system, RF and WiFi performance is significantly affected by the product design,

environment and the application. It is the responsibility of the product designer to ensure proper

system level shielding (if required) and to verify performance and fitness for the given product

features and applications.

The WiFi performance will be affected by the RF environment surrounding the CR module. Please

ensure that the CR module is positioned in a “quiet” RF environment, as far away as possible from

high frequency clock signals and any other sources of RF energy. Also, make sure the antenna is not

shielded by any metal objects, for example loudspeakers or other metal parts. Please make sure that

the power supplies, in particular the +1.9V supply, are quiet and free from noise.

BridgeCo recommends that systems implementing AirPlay should use a module configuration that

includes top module shielding, as well as paying particular attention to system configuration and

shielding.