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SiW1721B
60 0076 R00F SiW1721B Radio Modem IC DS
Pin Out
(Top View)
Pin Assignments
Note:
NC indicates no connect.
SiW1721BFIG (32-pin QFN)
Pin
Pin Name
Pin
Pin Name
1
IDAC
17
VBB_OUT
2
VREFP_CAP
18
VBATT_DIG
3
VREFN_CAP
19
RX_TX_DATA
4
VCC_OUT
20
VBB_READY
5
VBATT_ANA
21
CD_TXEN
6
VCC
22
SPI_SS
7
VCC
23
HOP_STROBE
8
CHG_PUMP
24
NC
9
ENABLE_RM
25
XTAL_N
10
TX_RX_SWITCH
26
XTAL_P/CLK
11
RESET_N
27
VCC
12
SPI_RXD
28
VTUNE
13
SPI_CLK
29
VCC
14
SPI_TXD
30
TX_BIAS
15
VDD_IO
31
RF_IO
16
BB_CLK
32
VCC
IDAC
VREFP_CAP
VREFN_CAP
VCC_OUT
VBATT_ANA
VCC
VCC
CHG_PUMP
VBB_OUT
VBATT_DIG
RX_TX_DATA
VBB_READY
CD_TXEN
SPI_SS
HOP_STROBE
NC
GROUND PAD
ON BOTTOM
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SiW1721B
Note: NC indicates "no connect" or unused pins.
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