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ADF7021 데이터시트(PDF) 55 Page - Analog Devices

부품명 ADF7021
상세설명  High Performance Narrow-Band Transceiver IC
PDF  64 Pages
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제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
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ADF7021 데이터시트(HTML) 55 Page - Analog Devices

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Data Sheet
ADF7021
Rev. B | Page 55 of 64
REGISTER 8—POWER-DOWN TEST REGISTER
PD1
PD3
PD4
PD5
DB8
DB7
DB6
DB5
DB4
DB3
DB2
C2 (0)
C1 (0)
CONTROL
BITS
DB1
DB0
C3 (0)
C4 (1)
Rx_RESET
CR1
DB15
DB14
DB13
DB12
DB11
LE1
PD6
DB10
DB9
SW1
PD7
PD7
0
1
PA (Rx MODE)
PA OFF
PA ON
CR1
0
1
COUNTER RESET
NORMAL
RESET
DEMOD
RESET
CDR
RESET
SW1
0
1
Tx/Rx SWITCH
DEFAULT (ON)
OFF
PD6
0
1
DEMOD ENABLE
DEMOD OFF
DEMOD ON
PD5
0
1
ADC ENABLE
ADC OFF
ADC ON
LE1
0
1
LOG AMP ENABLE
LOG AMP OFF
LOG AMP ON
PD4
0
1
FILTER ENABLE
FILTER OFF
FILTER ON
PD3
0
1
LNA/MIXER ENABLE
LNA/MIXER OFF
LNA/MIXER ON
PD1
0
1
SYNTH STATUS
SYNTH OFF
SYNTH ON
Figure 70. Register 8—Power-Down Test Register Map
It is not necessary to write to this register under normal
operating conditions.
For a combined LNA/PA matching network, DB11 should
always be set to 0, which enables the internal Tx/Rx switch. This
is the power-up default condition.



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