X7000 Datasheet, PDF (3/9 Pages) rfsolutions.ltd – 458MHZ RF SYNTHESISED TRANSCEIVER

458MHZ RF SYNTHESISED TRANSCEIVER
X7000
CONNECTIONS
Pin
Signal
1
GND
3
NU
5
OOL
7
SOX
9
STX
11
SRX
13
TXON
15
RSSI
17
DIN
19
MIN
21
AOUT
23
NU
25
DOUT
2
RFADJ
4
SIX
6
RST
8
RXON
10
12
14/16
FCNT
FDIR
MUX1/M
UX2
18
AIN
20
RDY
22
TRD
24
+VE
26
CD
A
GND
B
+Ve
Direction
IN
OUT
OUT
OUT
IN
IN
OUT
IN
IN
OUT
OUT
IN
OUT
IN
IN
IN
IN
IN
IN
OUT
OUT
IN
OUT
IN
IN
Description
0V Power Supply
Not Used
Out of Lock Signal. Output set low if synthesiser has not locked within
70mSec of TXON or RXON being applied.
Serial status Data Out. Used in conjunction with SRX
Serial status data; TTL Level 9600baud no parity
Serial set-up data; TTL Level 9600baud no parity
Set low to switch on the transmitter
Voltage logarithmically proportional to signal strength
0V=No signal, 0.7V = 0.1mV, 1.6V = 10 mV, 2.4V = 100 mV
Digital Signal :
100kΩ input impedance
DC - 9600bps
2.5V threshold
Direct Modulation :
10kΩ input impedance
DC - 9600bps
+ / - 3Vpk-pk for full deviation
Receiver Analogue Signal : Max Deviation = 1.8V pk-pk
Bias Voltage = 2.8V
Not Used
Receiver Digital Signal. The ANOUT signal is processed and presented in
digital form.
Sets the output Power.
Floating input = Max RF Power
0.4 - 0.5V = 5 – 500mW
Low when serial status data is present on STX
Held low to reset module
Set Low to switch the receiver on. Used in conjunction with TXON:
TXON RXON FUNCTION
Low Low
Transmit
Low High
Transmit
High Low
Receive
High High
Power Down
High to low transition increments or decrements the RF channel.
HIGH sets FCNT to increment channel
LOW sets FCNT to decrement channel
MUX1 and MUX2 connect one of the three data inputs to the transmitter
in the following way:
MUX1 Mux2 INPUT
High High DIN
Low High AIN
High Low MIN
Analogue Signal : Maximum deviation at 1Vpk-pk, bandwidth 6Hz to
4KHz, 3KΩ input impedance
Set low when synthesiser has locked
Set high when in transmit or receive
Power Supply +ve, regulated 8.5 - 14V supply.
Carrier Detect; high when an RF signal of sufficient strength is present
0 Volts
Power Supply +ve, regulated 8.5 - 14V supply.
DS007_2
Oct 00
©2000 REG No 277 4001, ENGLAND.
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