1 Pin Configuration
T
R
C
1
0
4
P
i
n
O
u
t
-
V
i
e
w
T
h
r
o
u
g
h
T
o
p
2
4
2
3
2
2
2
1
2
0
1
9
M
S
O
D
E
1
8
G
V
G
R
R
V
N
D
I
F
1
C
D
L
A
K
1
7
C
C
R
F
2
3
4
5
6
1
6
N
D
R
F
S
C
V
G
T
D
I
E
P
A
D
-
G
N
D
S
1
1
5
4
F
F
-
+
C
C
D
1
3
D
D
R
F
N
D
D
7
8
9
1
0
1
1
1
2
Figure 1
1.1 Pin Description
PIN TYPE NAME
DESCRIPTION
1
2
I
MODE
SCLK
Operating mode select input - used with PMODE and CS
Serial clock input for burst mode, serial data output for continuous mode, and
SPI/FIFO clock signal
I/O
3
I/O
I
SDAT
CS
Serial data input/output for SPI mode and TX/RX active mode
SPI serial interface select, active high
External digital power input, 3.0 V typical
Digital ground
4
5
VCCD
GNDD
VDDD
XTLOUT
XTLIN
PMODE
GNDVCO
VCCVCO
VDDRF
RF+
6
7
Regulated digital output voltage
Crystal oscillator output
8
O
I
9
Crystal oscillator input
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
P
I
Power mode select input - used with MODE to select standby or sleep mode
VCO ground pin
External VCO power input , 3.0 V typical
Regulated supply output for RF power amplifier
Differential RF I/O pin
RFIO
RFIO
RF-
Differential RF I/O pin
GNDRF
VCCRF
GNDIF
RSSIA
NC
RF ground
External RF power input, 3.0 V typical
IF ground
O
Analog RSSI output - continuous mode only
No connection - not used
O
O
INT
Transmit or receive complete interrupt output
RSSI threshold interrupt output
No connection - not used
RSSID
NC
NC
No connection - not used
-
DIE PAD
IC die pad on bottom of package - ground
Table 1
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Page 4 of 33
TRC104 - 08/13/09
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