Semiconductor Components Industries, LLC, 2012
December, 2012
−
Rev. 0
1
Publication Order Number:
EVBUM2166/D
BR262PMEVK
BELASIGNA
)
R262
Prototyping Module
Evaluation Board
User'sManual
The BelaSigna R262 Prototyping Module
The BelaSigna R262 prototyping module is a miniature,
self-contained unit that can be integrated into a product or
prototype to evaluate the performance of BelaSigna R262
“in-form-factor”.
Key Features
The module is shown in Figure 1 and features:
A Miniature Size of only 22 mm
6 mm
The 30-ball WLCSP Version of BelaSigna R262
(BR262W30A103E1G)
Two MEMS Microphones Spaced 10 mm Apart
(Knowles Part Number SPU0410HR5H
−
PB)
Through-hole Test Points for External Connections
Configured to Boot Directly to the ROM Application
Using the Internal Clock
I
2
C and GPIO Signals Available on Test Points
An Onboard I
2
C EEPROM for Optional Custom
Application
Dual MEMS
Microphones
Through-hole Test
points
BelaSigna R262
Figure 1. BelaSigna R262 Prototyping Module
Default Configuration
The prototyping module configures BelaSigna R262 to
run off its internal oscillator and to boot directly into the
ROM-based noise reduction algorithm. The module is
pre-configured to simultaneously output two different
algorithm turnings: a pure close-talk output on AO0, and an
output that is close-talk mixed 60% towards far-talk on
AO1. All that is required is to supply the module with 1.8 to
3.3 VDC (requires approximately 20 mA), and to connect
the analog outputs to your in-form-factor design. Power is
connected to VBAT (+) and GND (
−
). The prototyping
module configures the ROM application as summarized in
Table 1 when power is applied.
A description of all test points and a complete schematic
and layout is available in Appendix A.
http://onsemi.com
EVAL BOARD USER’S MANUAL
