SX1223 SEMTECH [Semtech Corporation], SX1223 Datasheet - Page 17

• Manufacturer Part Number: SX1223
• Description: 425 - 475 MHz / 850 - 950 MHz Integrated UHF Transmitter
• Manufacturer: SEMTECH [Semtech Corporation]

5.2.2
The tables below give the definition of all the parameters of the configuration registers besides the working modes.
© Semtech 2007
Add Bits
Add
Add
Add
Add
Add
0
0
0
1
1
1
Other Settings
4-2
7-6
Bit ClkOut_en
Bit
Bit Modulation1 Modulation0 State
Bit
Bit
1
0
5
4
FreqBand
XCOcap_en
Sync_en
PA2
0
1
0
1
0
0
0
0
1
1
1
1
0
1
0
0
1
1
0
1
State
DCLK pin off
DCLK pin on
Comments
RF frequency 425-475 MHz
RF frequency 850-950 MHz (default)
State
ClkOut off
ClkOut on
PA1
Comments
Internal capacitors for the crystal oscillator turned off
Internal capacitors for the crystal oscillator turned on, external capacitors not needed
(default)
0
0
1
1
0
0
1
1
0
1
0
1
Table 9: Power amplifier output power
PA0
Closed loop VCO-modulation (mw1)
Open loop VCO-modulation (mw2)
Modulation by M, N and A (mw3)
Not used
0
1
0
1
0
1
0
1
Table 14: XCO internal capacitor
Table 11: Synchronizer mode
Table 12: Modulation mode
Table 13: Frequency band
Table 10: Output clock
State
21dB attenuation
18dB attenuation
15dB attenuation
12dB attenuation
9dB attenuation
6dB attenuation
3dB attenuation
Max output (default)
17
Comments
Output is 0 volt on pin CLKOUT.
A clock at XCO frequency divided by 16 is
available on pin CLKOUT. (default)
Comments
Transparent transmission of data
Bit-clock
(default)
is
generated
Comments
VCO is phase-locked
VCO
(default)
Modulation inside PLL
by
is
transceiver
free-running
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SX1223