
MUX1[3:0] = 0101
TEMPP
MUX1[3:0] = 0100
MVDDP
MUX1[3:0] = 0011
From LOFFP
MUX1[3:0] = 0000
MUX1[3:0] = 0110 or
MUX1[3:0] = 1000
MUX1[3:0] = 0001
RLDIN/
RLDREF
MUX1[3:0] = 0010
MUX1[3:0] = 0111 or
MUX1[3:0] = 1000
IN2P
IN2N
MUX1[3:0] = 0000
From LOFFN
RLD_REF
MUX1[3:0] = 0010
MVDDN
TEMPN
MUX1[3:0] = 0100
MUX1[3:0] = 0101
Device
TESTP
TESTM
INT_TEST
MUX1[3:0] = 0011
EMI
Filter
To PGA2_INP
To PGA2_INN
VREFP + VREFN
2
MUX1[3:0] = 1001
MUX1[3:0] = 0101
TEMPP
MUX1[3:0] = 0100
MVDDP
MUX1[3:0] = 0011
From LOFFP
MUX1[3:0] = 0000
MUX1[3:0] = 0111 or
MUX1[3:0] = 1000
MUX1[3:0] = 0010
MUX1[3:0] = 0110 or
MUX1[3:0] = 1000
IN1P
IN1N
MUX1[3:0] = 0000
From LOFFN
RLD_REF
MUX1[3:0] = 0010
MVDDN
TEMPN
MUX1[3:0] = 0100
MUX1[3:0] = 0101
TESTP
TESTM
INT_TEST
MUX1[3:0] = 0011
EMI
Filter
MUX1[3:0] = 0001
To PGA1_INP
To PGA1_INN
MUX1[3:0] = 0001
VREFP + VREFN
2
MUX1[3:0] = 1001
RESP
MOD
RESP_MODP/IN3P
RESP_MODN/IN3N
MUX1[3:0] = 1001
SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012
Figure 14. Input Multiplexer Block for Both Channels
Copyright 2011–2012, Texas Instruments Incorporated
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