Application Note
page 24 of 32
V1.0
2021-03-31
Distance2GoL (Software-Controlled FMCW) low-power radar shield using
BGT24LTR11 for range detection and human tracking
External pin header connectors
Pin no.
Signal name
Pin description
6
ARD_ADC_5
DIV_OUT: Divider output signal
Table 12
External headers (P6)
–
pin description
Pin no.
Signal name
Pin description
1
V_PTAT_S&H_EN
Control signal for V_PTAT S&H switch (U9)
2
BB1_EN
Control signal for turning first baseband stage on/off
3
V_DAC_1
Control signal for V_DAC
Notes:
1.
Pins 5, 6 of header P2 are not connected to any signal.
2.
Pins 1, 3, 8 of header P3 are not connected to any signal.
3.
Pins 1, 4, 6, 7, 8 of header P4 are not connected to any signal.
4.
Pin 6 of header P5 is not connected to any signal.
The pin headers enhance the functionality of the module significantly. They enable probing the analog outputs
of the sensor module and also probing various other signals provided to the IC. In principle, the accessibility of
several pins on the radar IC and the IF signals available via the external pin headers enable interfacing the
module with an external signal processor.
