EVAL-ADF7021-VDB2Z Analog Devices Inc, EVAL-ADF7021-VDB2Z Datasheet - Page 42

• 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
APPLICATIONS CIRCUIT
The ADF7021-V requires very few external components for
operation. Figure 56 shows the recommended application
circuit. Note that the power supply decoupling and regulator
capacitors are omitted for clarity.
CONNECTION
NOTES
1. PINS[13:18], PINS[20:21], AND PIN 23 ARE TEST PINS AND ARE NOT USED IN NORMAL OPERATION.
ANTENNA
T-STAGE LC
FILTER
Figure 56. Typical Application Circuit (Regulator Capacitors and Power Supply Decoupling Not Shown)
MATCHING
RESISTOR
VDD
RF
EXTERNAL VCO
R
LNA
OUT
VDD
VDD
V
RSET
RESISTOR
TUNE
10
11
12
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1
2
3
4
5
6
7
8
9
CREG1
VCOIN
VDD1
RFOUT
RSET
CREG4
GND4
RFGND
RFIN
RFIN
R
VDD4
LOOP FILTER
LNA
For recommended component values, see the ADF7021-V
evaluation board data sheet and the AN-859 Application Note,
accessible from the ADF7021-V product page. Follow the refer-
ence design schematic closely to ensure optimum performance
in narrow-band applications.
ADF7021-V
VDD
TCXO
VDD
REFERENCE
TxRxDATA
TxRxCLK
CLKOUT
CREG2
SREAD
SDATA
ADCIN
GND2
SCLK
VDD2
SWD
SLE
36
35
34
33
32
31
30
29
28
27
26
25
CHIP ENABLE
TO MICROCONTROLLER
VDD
TO
MICROCONTROLLER
CONFIGURATION
INTERFACE
TO
MICROCONTROLLER
Tx/Rx SIGNAL
INTERFACE