NXP Semiconductors UM11227 - Application Information

NXP Semiconductors
UM11227
NTM88 family of tire pressure monitor sensors
UM11227 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User manual Rev. 6 — 24 April 2020
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11 Application information
aaa-032581
VDD
VREG
RFOUT
VDD
antenna terminals
18 pins used of 24 total
NTM88 family
VDD
battery terminals
BDM
interface
connections
RST*
VDD (+)
GND (-)
BDM
VDD
C6
0.47 µF
C7
option dnp
Y1
26 MHz
L2
L3
C3
[1]
+
-
VDDA
RSTB/VPP
C5R3
L1
GND
BKGD/
PTA4
LFA
LFB
PTA0/KBIP0/SS_B/IRQ
PTA1/KBIP1/SCLK
RFGND
X1
X0
PTB1/TPMCH1/AD4/ATB1
PTB0/TPMCH0/AD3/ATB0
PTA3/KBIP3/MOSI
GPIO pins:
SPI/ADC/TPM/KBI
PTA2/KBIP2/MISO
[1] C1, C2, C3 and C4 values may be altered for EMI performance.
[2] R1, R2 and R4 are optional if needed for EMI performance.
[3] C10 and C11 values are in accordance with recommendations of Y1 manufacturer.
C2
[1]
C1
[1]
C4
[1]
R1
[2]
R2
[2]
R4
[2]
C10
[3]
C11
[3]
C9
option dnp
Note: R1, R2, and R4 remain optional. R1, R2, and R4 are recommended to avoid potential
inadvertent activation of internal circuits under adverse environment conditions.
Figure 60. Electrical schematic diagram