ADF7020BCPZ Datasheet, PDF (5/48 Pages) Analog Devices – High Performance, ISM Band, FSK/ASK Transceiver IC

Data Sheet
ADF7020
SPECIFICATIONS
VDD = 2.3 V to 3.6 V, GND = 0 V, T_A = T_MIN to T_MAX, unless otherwise noted. Typical specifications are at VDD = 3 V, T_A = 25°C.
All measurements are performed using the EVAL-ADF7020DBZx using the PN9 data sequence, unless otherwise noted.
Table 1.
Parameter
RF CHARACTERISTICS
Frequency Ranges (Direct Output)
Frequency Ranges (Divide-by-2 Mode)
Phase Frequency Detector Frequency
TRANSMISSION PARAMETERS
Data Rate
FSK/GFSK
OOK/ASK
OOK/ASK
Frequency Shift Keying
GFSK/FSK Frequency Deviation^{2, 3}
Deviation Frequency Resolution
Gaussian Filter BT
Amplitude Shift Keying
ASK Modulation Depth
PA Off Feedthrough in OOK Mode
Transmit Power⁴
Transmit Power Variation vs.
Temperature
Transmit Power Variation vs. VDD
Transmit Power Flatness
Programmable Step Size
−20 dBm to +13 dBm
Integer Boundary
Reference
Harmonics
Second Harmonic
Third Harmonic
All Other Harmonics
VCO Frequency Pulling, OOK Mode
Optimum PA Load Impedance⁵
RECEIVER PARAMETERS
FSK/GFSK Input Sensitivity
Min
862
902
928
431
440
RF/256
0.15
0.15
0.3
1
4.88
100
−20
Typ
0.5
−50
±1
±1
±1
0.3125
−55
−65
−27
−21
−35
30
39 + j61
48 + j54
54 + j94
Sensitivity at 1 kbps
Sensitivity at 9.6 kbps
Sensitivity at 200 kbps
OOK Input Sensitivity
Sensitivity at 1 kbps
Sensitivity at 9.6 kbps
−119.2
−112.8
−100
−116
−106.5
Max Unit
870 MHz
928 MHz
956 MHz
440 MHz
478 MHz
24
MHz
200 kbps
64 ¹
kbps
100 kbaud
110 kHz
620 kHz
Hz
30
dB
dBm
+13 dBm
dB
dB
dB
dB
dBc
dBc
dBc
dBc
dBc
kHz rms
Ω
Ω
Ω
dBm
dBm
dBm
dBm
dBm
Test Conditions
VCO adjust = 0, VCO bias = 10
VCO adjust = 3, VCO bias = 10
VCO adjust = 3, VCO bias = 12, VDD = 2.7 V to 3.6 V
VCO adjust = 0, VCO bias = 10
VCO adjust = 3, VCO bias = 12
Using Manchester encoding
PFD = 3.625 MHz
PFD = 20 MHz
PFD = 3.625 MHz
VDD = 3.0 V, T_A = 25°C
From −40°C to +85°C
From 2.3 V to 3.6 V at 915 MHz, T_A = 25°C
From 902 MHz to 928 MHz, 3 V, T_A = 25°C
50 kHz loop BW
Unfiltered conductive
DR = 9.6 kbps
FRF = 915 MHz
FRF = 868 MHz
FRF = 433 MHz
At BER = 1E − 3, FRF = 915 MHz,
LNA and PA matched separately⁶
FDEV = 5 kHz, high sensitivity mode⁷
FDEV = 10 kHz, high sensitivity mode
FDEV = 50 kHz, high sensitivity mode
At BER = 1E − 3, FRF = 915 MHz
High sensitivity mode
High sensitivity mode
Rev. D | Page 5 of 48