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AWR1642 Datasheet(PDF) 32 Page - Texas Instruments

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Part # AWR1642
Description  AWRL6432 Single-Chip 57- to 64GHz Automotive Radar Sensor
PDF  75 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

AWR1642 Datasheet(HTML) 32 Page - Texas Instruments

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SYNC_IN
(Hardware
Trigger)
Radar
Frames
Tlag
Frame-1
Frame-2
Tactive_frame
Tpulse
Software
API Trigger
Figure 7-9. Sync In Hardware Trigger
Table 7-16. Frame Trigger Timing
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
Tactive_frame
Active frame duration
User defined
ns
Tpulse
25
< Tactive_frame or
4000
7.13.3 Input Clocks and Oscillators
7.13.3.1 Clock Specifications
The AWRL6432 requires external clock source (that is, a 40MHz crystal or external oscillator to CLKP) for initial
boot and as a reference for an internal APLL hosted in the device. An external crystal connected to the device
pins Figure 7-10 shows the crystal implementation.
40 MHz
CLKP
CLKM
Cf1
Cf2
Cp
Figure 7-10. Crystal Implementation
Note
The load capacitors, Cf1 and Cf2 in Figure 7-10, should be chosen such that Equation 1 is satisfied.
CL in the equation is the load specified by the crystal manufacturer. All discrete components used
to implement the oscillator circuit should be placed as close as possible to the associated oscillator
CLKP and CLKM pins.
f 2
L
f1
P
f1
f 2
C
C
C
C
C
C
=
´
+
+
(1)
Table 7-17 lists the electrical characteristics of the clock crystal.
AWRL6432
SWRS295A – DECEMBER 2022 – REVISED MARCH 2024
www.ti.com
32
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Copyright © 2024 Texas Instruments Incorporated
Product Folder Links: AWRL6432



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