BCM20707 Datasheet, PDF (27/65 Pages) Cypress Semiconductor – Complies with Bluetooth Core Specification version 4.2 including BR/EDR/BLE

BCM20707 Preliminary Data Sheet
Figure 6: Infrared TX
BCM20707 IR TX
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R1
62
D1 Infrared-LD
R2
Q1
2.4K
MMBTA42
Infrared Learning
Infrared Learning
The BCM20707 includes hardware support for infrared learning. The hardware can detect both modulated and
unmodulated signals. For modulated signals, the BCM20707 can detect carrier frequencies between 10 kHz
and 500 kHz, and the duration that the signal is present or absent. The BCM20707 firmware driver supports
further analysis and compression of the learned signal. The learned signal can then be played back through the
BCM20707 IR TX subsystem (see Figure 7).
Figure 7: Infrared RX
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D2 Photodiode
BCM20707 IR RX
Broadcom^®
May 27, 2016 • 20707-DS206-R
BROADCOM CONFIDENTIAL
Bluetooth SoC
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