ADF7021-V データシートの表示（PDF） - Analog Devices
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ADF7021-V Datasheet PDF : 60 Pages
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ADF7021-V
TRANSMISSION SPECIFICATIONS
LBW = loop bandwidth.
Table 2.
Parameter
DATA RATE
2FSK
3FSK
4FSK
MODULATION
Frequency Deviation (fDEV)
Frequency Deviation Resolution
Gaussian Filter Bandwidth Time (BT)
Raised Cosine Filter Alpha
TRANSMIT POWER
Maximum Transmit Power1
Transmit Power Variation vs.
Temperature
Transmit Power Variation vs. VDD
Transmit Power Flatness
Programmable Step Size
ADJACENT CHANNEL POWER (ACP)
Min
0.05
0.05
0.05
0.056
0.306
56
Typ
0.5
0.5/0.7
13
±1
±1
±1
0.3125
460 MHz
12.5 kHz Channel Spacing
−47
25 kHz Channel Spacing
−53
868 MHz
12.5 kHz Channel Spacing
−44
25 kHz Channel Spacing
−49
MODULATION BANDWIDTH
125 kHz Offset
125 kHz + 200 kHz
125 kHz + 400 kHz
125 kHz + 1 MHz
EMISSION MASK
−74.5
−79
−69.5
−62
12.5 kHz Offset
460 MHz
−77
OCCUPIED BANDWIDTH
2FSK, Gaussian Data Filtering
12.5 kHz Channel Spacing
4.0
25 kHz Channel Spacing
8.5
2FSK, Raised Cosine Data Filtering
12.5 kHz Channel Spacing
4.5
25 kHz Channel Spacing
9.6
Max Unit
18.5 kbps
18.5 kbps
24
kbps
Test Conditions/Comments
Limited by the loop bandwidth
LBW must be ≥1.25 × data rate for correct operation
LBW = 18.5 kHz
LBW = 18.5 kHz
28.26 kHz
156 kHz
Hz
PFD = 3.625 MHz
PFD = 20 MHz
PFD = 3.625 MHz
Programmable
dBm
dB
dB
dB
dB
VDD = 3.0 V, TA = 25°C
TA = −40°C to +85°C
VDD = 2.3 V to 3.6 V at 915 MHz, TA = 25°C
902 MHz to 928 MHz, VDD = 3 V, TA = 25°C
−16 dBm to +13 dBm
Gaussian 2FSK modulation, 13 dBm output power,
PFD = 19.68 MHz, LBW = 6 kHz
dBm
dBm
dBm
dBm
dBm/1 kHz
dBm/1 kHz
dBm/10 kHz
dBm/100 kHz
Measured in a ±8.5 kHz bandwidth at ±12.5 kHz
offset, 2.4 kbps PN9 data, fDEV = 1.2 kHz
Measured in a ±16 kHz bandwidth at ±25 kHz
offset, 4.8 kbps PN9 data, fDEV = 2.4 kHz
Compliant with ETSI EN 300 220
Measured in a ±8.5 kHz bandwidth at ±12.5 kHz
offset, 2.4 kbps PN9 data, fDEV = 1.2 kHz
Measured in a ±16 kHz bandwidth at ±25 kHz
offset, 4.8 kbps PN9 data, fDEV = 2.4 kHz
869.525 MHz, Gaussian 2FSK modulation, 4.8 kbps,
fDEV = 2.4 kHz, 10 dBm output power,2 compliant
with ETSI EN 300 220, LBW = 6 kHz
FCC Part 90 Emission Mask D, 100 Hz resolution
bandwidth, Gaussian 2FSK modulation, LBW =
6 kHz, 10 dBm output power, 2.4 kbps PN9 data,
fDEV = 1.2 kHz
dBc
99.0% of total mean power, LBW = 6 kHz, 10 dBm
output power
kHz
2.4 kbps PN9 data, fDEV = 1.2 kHz
kHz
4.8 kbps PN9 data, fDEV = 2.4 kHz
kHz
2.4 kbps PN9 data, fDEV = 1.2 kHz
kHz
4.8 kbps PN9 data, fDEV = 2.4 kHz
Rev. 0 | Page 5 of 60
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