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XE1205
3
PIN DESCRIPTION
PIN
0
NAME
EPAD
DESCRIPTION
Pad below package (should be grounded)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
SW(0)
SW(1)
NC
NC
RFA
RFB
VSSP2
VSSP2
RFOUT
VDDP
VSSP
VDDF
VSSF
TKA
VSSF
TKB
VSSF
LFB
VDDD
VSS
NSS_CONFIG
NSS_DATA
VDD
IRQ_0
IRQ_1
DATA
CLKOUT
MISO
MOSI
SCK
XTA
VSSA
XTB
VDDA
POR
NC
TIBIAS
TSUPP
VDDA
VSSA
QAMP
IAMP
TMOD(3)
TMOD(2)
TMOD(1)
TMOD(0)
NC
NC
I/O
I/O
I
I
O
I/O
I/O
I/O
I
I
O
O
I/O
O
O
I
I
I/O
I/O
I/O
I/O
O
O
I/O
I/O
I/O
I/O
Transmit/Receive/Stand-by/Sleep Mode Select
Transmit/Receive/Stand-by/Sleep Mode Select
Not connected (should be grounded)
Not connected (should be grounded)
RF Input
RF Input
Power Amplifier Ground
Power Amplifier Ground
RF Output
Power Amplifier Supply Voltage
Power Amplifier Ground
Second HF Analog Supply voltage
Second HF Analog Ground
VCO Tank
Second HF Analog Ground
VCO Tank
Second HF Analog Ground
PLL Loop Filter
HF Digital Supply Voltage
LF Digital Ground
SPI SELECT CONFIG
SPI SELECT DATA (DATA_IN in continuous mode)
LF Digital Supply Voltage
Interrupt (refer to chapter 5.2.5 for mapping options)
Interrupt(refer to chapter 5.2.5 for mapping options)
Data input and output (output only in continuous mode)
Output clock at reference frequency divided by 2, 4, 8, 16, 32
SPI Master Input Slave Output
SPI Master Output Slave Input
SPI CLOCK
Ref Xtal / Input of external clock
LF analog ground
Reference Xtal
LF Analog Supply Voltage
Not used (should not be connected)
Not connected (should be grounded)
Test pin (should be grounded in normal operation)
Test pin (should be grounded in normal operation)
LF Analog Supply Voltage
LF analog ground
Output of Q-Ch low-pass filter
Output of -ChI low-pass filter
Test pin (should be grounded in normal operation)
Test pin (should be grounded in normal operation)
Test pin (should be grounded in normal operation)
Test pin (should be grounded in normal operation)
Not connected (should be grounded)
Not connected (should be grounded)
Table 1: Pin description
? Semtech 2008
4
www.semtech.com
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