EVAL-ADF7021-VDB2Z Analog Devices Inc, EVAL-ADF7021-VDB2Z Datasheet - Page 20

• Manufacturer Part Number: EVAL-ADF7021-VDB2Z
• Description: 868 - 870MHz - EVALUATION BOARD
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of EVAL-ADF7021-VDB2Z

• Frequency: 868MHz ~ 870MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ADF7021
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADF7021-V
Figure 29. 2FSK Sensitivity vs. Modulation Index and Correlator
Figure 30. 3FSK Receiver Sensitivity Using Viterbi Detection and
–100
–102
–104
–106
–108
–110
–112
–114
–116
–118
–1
–2
–3
–4
–5
–6
–7
0
–120 –118 –116 –114 –112 –110 –108 –106 –104 –102 –100
0
3FSK MODULATION
V
DATA RATE = 9.6kbps
f
RF FREQ = 868MHz
IFBW = 18.75kHz
DEV
DD
DISCRIMINATOR BANDWIDTH =
1× FSK FREQUENCY DEVIATION
VITERBI DETECTION
= 3.0V, TEMP = 25°C
= 2.4kHz
0.2
Discriminator Bandwidth
Threshold Detection
0.4
INPUT POWER (dBm)
MODULATION INDEX
DISCRIMINATOR BANDWIDTH =
2× FSK FREQUENCY DEVIATION
THRESHOLD DETECTION
0.6
RF FREQ = 860MHz
2FSK MODULATION
DATA RATE = 9.6kbps
IFBW = 25kHz
V
TEMPERATURE = 25°C
DD
0.8
= 3.0V
1.0
1.2
Rev. 0 | Page 20 of 60
Figure 31. 2FSK Receiver Sensitivity vs. LNA Gain/IF Filter Gain and Mixer
–100
–110
–120
–130
–70
–80
–90
Linearity Settings (Input IP3 at Each Setting Also Shown)
(LOW GAIN MODE)
IP3 = –3dBm
IP3 = –5dBm
LINEARITY
DEFAULT
3, 72
MIXER
HIGH MIXER
LINEARITY
LNA GAIN, FILTER GAIN
(MEDIUM GAIN MODE)
IP3 = –13.5dBm
IP3 = –9dBm
10, 72
2FSK MODULATION
DATA RATE = 9.6kbps
f
IFBW = 12.5kHz
DEMOD = CORRELATOR
SENSITIVITY @ BER = 10
DEV
= 4kHz
(HIGH GAIN MODE)
IP3 = –20dBm
IP3 = –24dBm
30, 72
–3