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STW82102B 데이터시트(PDF) 60 Page - STMicroelectronics

부품명 STW82102B
상세설명  RF down converter with embedded integer-N synthesizer
PDF  67 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STW82102B 데이터시트(HTML) 60 Page - STMicroelectronics

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Application information
STW82102B
60/67
Doc ID 018516 Rev 2
11.5
External VCO standard mode operation
The STW82102B can be used in Ext VCO Mode for both RX path and TX observation path
(RX Chain ON, Synthesizer ON, EXT VCO/LO buffer ON and with an external VCO).
In such a case the 10-bit internal DAC can drive an external PIN diode attenuator in order to
calibrate the signal level at the input of the device.
Figure 29.
External VCO standard mode operation
RF_IN2
I_PINDRV1
I_PINDRV2
RF_IN
RF_VSS
RF_CT
MIXDRV_CT
DAC
MIX
STW82102B
RF_IN
DRV
5V
IF AMP
DBUS
BUF
DBUS_SEL
SDA/DATA
SCL/CLK
LOAD
LOCK_DET
4:1
IF_OUT
50
Ω
5V
REXT_CP
REF_CLK
CHP
PFD
UP
DN
PLL
ICP
EXT
IF_OUTP
IF_OUTN
EXTERNAL
VCO
EXTVCO_INP
EXTVCO_INN
LO/VCO
BUF



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