Linx Technologies TXM-900-HP3-xxx - Manual (Page 3)

Page 5
Pin #
Analog Ground
50-ohm RF Output
Channel Select 0
Channel Select 1 /
Serial Select Clock
Channel Select 2 /
Serial Select Data
Clear-to-Send
Output
Mode Select
Voltage Input 2.8-13V
Power Down
(Active Low)
Digital / Analog Input
GND
ANT
CS0
CS1 /
SS CLOCK
CS2 /
SS DATA
PDN
CTS
MODE
DATA
V
CC
1, 3
13, 20
2
5
6
7
9
8
11
12
4,
14-19,
21-24
10
1
2
3
4
5
7
6
9
10
8
50 Ω
RF
Out
CTS
Out
PDN
430k
V
CC
SMD Pinned
NC SMD (Only) No Electrical Connection
100k
160k
510k 20pF
Name Equivalent Circuit Description
CS0
25k
μ
CS1
25k
μ
CS2
25k
μ
MODE
25k
μ
Page 4
PIN DESCRIPTIONS PIN ASSIGNMENTS
GND ANT CS0 CS1 / SS CLOCK CS 2 / SS DATA CTS PDN VCC MODE DATA
1 2 3 4 5 6 7 8 9 10
GND
ANT
GND NC
NC
GND
NC
NC
NC
CS2 / SS DATA
NC
CS0
CS1 / SS CLOCK
CTS
NC
NC
1
2
3
4
5
6
7
8 17
18
19
20
21
22
23
24
PDN
VCC
MODE NC
GND DATA
NC
NC
9
10
11
12 13
14
15
16
Figure 7: HP3 Series Receiver Pinout
Pin #
Name Description
SMD SIP
1 1 GND Analog Ground
2 2 ANT 50-ohm RF Output
3 GND Analog Ground (SMD only)
4 NC
No Electrical Connection. Soldered for physical support
only.
5 3 CS0 Channel Select 0
6 4
CS1 / SS
CLOCK
Channel Select 1 / Serial Select Clock. Channel Select 1
when in parallel channel selection mode, clock input for
serial channel selection mode.
7 5
CS2 / SS
DATA
Channel Select 2 / Serial Select Data. Channel Select 2
when in parallel channel selection mode, data input for
serial channel selection mode.
8 6 CTS
Clear-To-Send. This line will go high when the transmitter
is ready to accept data.
9 7 PDN
Power Down. Pulling this line low will place the transmitter
into a low-current state. The module will not be able to
transmit a signal in this state.
10 8 V
CC Supply Voltage
11 9 MODE
Mode Select. GND for parallel channel selection, V
CC
for
serial channel selection
12 10 DATA
Digital / Analog Data Input. This line will input the
modulated digital data or analog signal.
13, 20 GND Analog Ground (SMD only)
14-19,
21-24
NC
No Electrical Connection. Soldered for physical support
only. (SMD only)
Surface-Mount Transmitter Pinned Transmitter
Figure 8: Pin Functions and Equivalent Circuits