User's Guide

LE920A4 HW User Guide Module Connections
Doc#: 1VV0301261 Signals That Must Be Connected
Rev. 4.7.1 Page 37 of 124 2019-11-21
Signals That Must Be Connected
Table 8 lists the signals that must be connected even if not used by the end application.
Table 8: Mandatory Signals
PAD Signal Notes
AP17, AP19, AR18, AR20, AS17,
AS19, AT18, AU17, AU19, AT20
VBATT &
VBATT_PA
A0, N0, R0, T0, V0, X0, AA0, AC0,
AE0, AG0, AJ0, AL0,
AN0, AR0, AV0, ZZ1, F1, M1, P1, U1,
W1, Y1, AB1, AF1,
AH1, AK1, AU1, N2, R2, T2, X2, AA2,
AC2, AE2, AG2,
AJ2, AL2, AN2, AR2, D3, P3, AP3, C4,
AR4, AT4, AP5,
AS5, AU5, A6, C6, AR6, AT6, D7, AP7,
AS7, AU7, T8, V8, X8, AA8, AR8, AT8,
AV8, U9, W9, Y9, AP9, AS9, T10, V10,
X10, AA10, AR10, AT10, AV10, U11,
W11, Y11, AP11,
AS11, AU11, A12, T12, V12, X12,
AA12, AR12, AT12,
AV12, B13, AP13, AS13, AR14, AT14,
AV14, B15, AP15,
AS15, AU15, AN16, AR16, AT16,
AV16, B17, AK17,
AM17, E18, G18, T18, V18, X18, AL18,
AN18, AV18,
ZZ19, H19, Y19, AM19, A20, L20, N20,
AV20
GND
AS1 ON/OFF Main power on off signal
AN12 SHDN_N Emergency power off
D19 USB_D+ If not used, connect to a
test point or an USB
connector
F19 USB_D- If not used, connect to a
test point or an USB
connector
A18 USB_VBUS If not used, connect to a
test point or an USB
connector