EVAL-ADF7021DBZ5 Datasheet, PDF (21/64 Pages) Analog Devices – High Performance Narrow-Band Transceiver IC

Data Sheet
+1
0
–1
RF I/P LEVEL = –70dBm
DATA RATE = 10kbps
4 ^{fDEV = 2.5kHz}
20834 ACQS
IF BW = 12.5kHz
POST DEMOD BW = 12.4kHz
M 20µs C13
1.7V
Figure 29. 3FSK Receiver Eye Diagram Measured Using the Test DAC Output
ADF7021
–70
MODULATION = 2FSK
DATA RATE = 9.6kbps
–80
HIGH MIXER
LINEARITY
f_DEV = 4kHz
IF BW = 12.5kHz
DEMOD = CORRELATOR
IP3= –5dBm
SENSITIVITY @ 1E-3 BER
–90
–100
–110
–120
IP3 = –3dBm
DEFAULT
MIXER
LINEARITY
IP3 = –9dBm
IP3 = –13.5dBm
IP3 = –20dBm
IP3 = –24dBm
–130
3, 72
10, 72
30, 72
(LOW GAIN MODE) (MEDIUM GAIN MODE) (HIGH GAIN MODE)
LNA GAIN, FILTER GAIN
Figure 30. Receive Sensitivity vs. LNA/IF Filter Gain and Mixer Linearity Settings
(The Input IP3 at Each Setting is Also Shown)
Rev. B | Page 21 of 64