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ADF7025 Datasheet(PDF) 30 Page - Analog Devices

Part # ADF7025
Description  High Performance ISM Band Transceiver IC
PDF  44 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADF7025 Datasheet(HTML) 30 Page - Analog Devices

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ADF7025
Rev. A | Page 30 of 44
REGISTER 2—TRANSMIT MODULATION REGISTER
MODULATION PARAMETER
POWER AMPLIFIER
GFSK MOD
CONTROL
PA BIAS
MODULATION
SCHEME
ADDRESS
BITS
DI1
0
1
TxDATA
TxDATA
PA2
0
0
1
1
PA1
0
1
0
1
PA BIAS
5µA
7µA
9µA
11µA
IC2
X
IC1
X
MC3
X
MC2
X
MC1
X
D9
0
0
0
0
.
1
D3
0
0
0
0
.
1
....
....
....
....
....
....
....
D2
0
0
1
1
.
1
D1
0
1
0
1
.
1
FOR FSK MODE,
F DEVIATION
PLL MODE
1 × FSTEP
2 × FSTEP
3 × FSTEP
.
511 × FSTEP
P6
0
0
0
0
.
.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1
P2
X
0
0
1
.
.
1
P1
X
0
1
0
.
.
1
POWER AMPLIFIER OUTPUT LEVEL
PA OFF
–16.0dBm
–16 + 0.45dBm
–16 + 0.90dBm
.
.
13dBm
PE1
0
1
POWER AMPLIFIER
OFF
ON
MP1
0
1
MUTE PA UNTIL
LOCK DETECT HIGH
OFF
ON
MODULATION SCHEME
FSK
INVALID
S2
0
X
S3
0
X
S1
0
X
Figure 41. Register 2—Transmit Modulation Register
Register 2—Transmit Modulation Register Comments
• FSTEP = PFD/1214.
• When operating in the 431 MHz to 464 MHz band, FSTEP = PFD/1215.
• PA bias default = 9 µA.



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