5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
UM980 Module
0805
Debug1
Debug2
Dual buffer/driver
with open-drain outputs
0805
ANT-OFF ANT-DETECT ANT-SHORT-N
1
X
X
Ant-Bias Turn off
0
1
1
Ant-Bias Current
＞
50mA
0
1
0
Ant-Bias Short to GND
0
0
1
Ant-Bias Current
＜
50mA
0
0
0
Circuits Maybe error
Dual buffer/driver
with open-drain outputs
Ant Bias Status Detect
Ant Bias
PIN36
PIN05
PIN08
PIN09
PIN10
PIN11
PIN04
PIN05
PIN21
PIN13
PIN06
PIN20
PIN43
PIN42
PIN19
PIN20
PIN43
PIN42
PIN26
PIN27
PIN45
PIN44
PIN28
PIN49
PIN51
PIN53
PIN31
PIN30
PIN29
ANT_IN
PIN36
PIN08
PIN09
PIN26
PIN10
PIN27
PIN45
PIN44
VCCIN
PIN28
PIN29
PIN30
PIN11
PIN31
PIN53
PIN51
PIN49
PIN04
PIN21
PIN13
PIN06
PIN19
PIN35
PIN35
ANT_PWR
VCCIN
ANT_IN
PIN23
PIN22
PIN22
PIN23
PIN07
PIN07
ANT_BIAS6
ANT_BIAS5
ANT_IN1
ANT_BIAS4
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
5V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
5V
5V
3.3V
SCL
SDA
SPIS_CLK
SPIS_MISO
SPIS_MOSI
SPIS_CSN
SCL
SDA
SCL
SDA
NC#54
NC#52
NC#50
NC#46
NC#47
NC#38
NC#39
NC#40
NC#15
NC#16
NC#17
NC#18
NC#24
NC#25
EVENT
RXD3
V_BCKP
RESET_N
RXD1
RXD2
ANT_IN
RSV#22
RSV#23
BIF#29
BIF#28
BIF#28
ANT_DETECT
ANT_SHORT_N
ANT_OFF
ANT_OFF1
VCC_RF
ANT_DETECT1
ANT_BIAS3
ANT_BIAS2
ANT_BIAS2
ANT_BIAS3
ANT_BIAS1
ANT_BIAS1
ANT_BIAS1
ANT_BIAS1
VCC_RF
ANT_OFF1
ANT_BIAS2
ANT_DETECT
ANT_SHORT_N
ANT_BIAS3
ANT_DETECT1
ANT_BIAS1
PPS
TXD3
TXD1
TXD2
PVT_STAT
RTK_STAT
VCCIN
BIF#28
BIF#29
BIF#29
ANT_OFF
VCC_RF
ERR_STAT
ANT_IN
Title
Size
Document Number
R e v
Date:
Sheet
o f
UM980 Module, Ant Bias, Debug Interface
V1.0
UM980eb
B
4
5
Friday, January 21, 2022
Unicore Communications,Inc
Title
Size
Document Number
R e v
Date:
Sheet
o f
UM980 Module, Ant Bias, Debug Interface
V1.0
UM980eb
B
4
5
Friday, January 21, 2022
Unicore Communications,Inc
Title
Size
Document Number
R e v
Date:
Sheet
o f
UM980 Module, Ant Bias, Debug Interface
V1.0
UM980eb
B
4
5
Friday, January 21, 2022
Unicore Communications,Inc
R10
0
D26
R67
33
D20
MBR120LSFT1G
J5
1
2
3
4
5
R33
0
R4
NC
D37
D41
TP3
D29
R50
0
D17
D18
C15
100pF
C4
10uF
D40
R21
0
R70
NC
R73
0
R16
33
C19
100pF
D47
R14
100k
C5
100nF
R1
5.1k
R41
33
R9
0
D28
R81
5.1k
R23
0
R68
33
D22
R27
5.1k
D36
D24
R26
0
U1B UM980
X1
X1
X2
X2
X3
X3
X4
X4
X5
X5
X6
X6
X7
X7
X8
X8
Y32
Y32
Y33
Y33
Y34
Y34
Y35
Y35
Y36
Y36
Y1
Y1
Y2
Y2
Y3
Y3
Y4
Y4
Y5
Y5
Y6
Y6
Y7
Y7
Y8
Y8
Y9
Y9
Y10
Y10
Y11
Y11
Y12
Y12
Y13
Y13
Y14
Y14
Y15
Y15
Y16
Y16
Y17
Y17
Y18
Y18
Y19
Y19
Y20
Y20
Y21
Y21
Y22
Y22
Y23
Y23
Y24
Y24
Y25
Y25
Y26
Y26
Y27
Y27
Y28
Y28
Y29
Y29
Y30
Y30
Y31
Y31
Y37
Y37
Y38
Y38
Y39
Y39
Y40
Y40
Y41
Y41
Y42
Y42
Y43
Y43
Y44
Y44
Y45
Y45
Y46
Y46
Y47
Y47
Y48
Y48
Y49
Y49
Y50
Y50
Y51
Y51
Y52
Y52
D45
TP4
R43
33
TP1
D48
R13
10k
R48
33
D19
C1
10uF
R24
10
D33
D15
SMF5.0A
R35
33
U4 LT6000IDCB#TRMPBF
SHDN-
1
-IN
2
+IN
3
OUT
4
V-
5
V+
6
GND
7
R28
0
D49
PESD5V0F1BL,315
C21
100pF
C6
10uF
TP5
D42
D38
R78
NC
R8
100k
R55
33
R58
0
R82
1k
TP8
R17
33
D32
SMF5.0A
R29
NC
R19
33
D25
C3
100nF
C20
100nF
L1
22uH
R2
5.1k
C28
100nF
R54
33
R51
33
L2
68nH
D39
R72
0
C11
100nF
R65
NC
R86
0
D21
R18
33
TP2
Q1
Si2333CDS-T1-GE3
G
1
S
2
D
3
R3
0
R53
0
TP7
U6 SN74LVC2G07DBVR
1A
1
GND
2
2A
3
2Y
4
VCC
5
1Y
6
D43
D27
R66
33
D23
R69
33
TP6
R79
5.1k
U2 SN74LVC2G07DBVR
1A
1
GND
2
2A
3
2Y
4
VCC
5
1Y
6
R46
33
D14
SMF5.0A
R37
33
R20
NC
R5
0
D30
D46
U1A
UM980
GND#01
1
ANT_IN
2
GND#03
3
ANT_DETECT
4
ANT_OFF
5
ANT_SHORT_N
6
VCC_RF
7
SPIS_CSN
8
SPIS_MOSI
9
SPIS_CLK
10
SPIS_MISO
11
GND#12
12
RSV#13
13
NC#24
24
RSV#23
23
RSV#22
22
ERR_STAT
21
RTK_STAT
20
PVT_STAT
19
NC#18
18
NC#17
17
NC#16
16
NC#15
15
GND#14
14
GND#37
37
V_BCKP
36
RSV
35
VCC#34
34
GND#32
32
RXD3
31
TXD3
30
BIF#29
29
BIF#28
28
TXD2
27
RXD2
26
NC#25
25
NC#38
38
NC#39
39
NC#40
40
GND#41
41
TXD1
42
RXD1
43
SDA
44
SCL
45
NC#46
46
NC#47
47
GND#48
48
VCC#33
33
RESET_N
49
NC#50
50
EVENT
51
NC#52
52
PPS
53
NC#54
54
C2
10uF
R71
0
D35
R40
33
C9
100nF
D44
R31
NC
D31
D34
R44
33
R22
0
D50
NC
R30
0
R12
NC
