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HFA3665IA 데이터 시트보기 (PDF) - Intersil
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HFA3665IA
CDMA/AMPS Downconverter with AGC Capability
Intersil
HFA3665IA Datasheet PDF : 8 Pages
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Typical RF Front End AGC Application Diagram
S+M B4691
8.2n
L11
4p
4p
C1
C7
R3
12
82n
L1
R4
12
12p
C2
V
CC
PIN
220p
AGC
VLNA
Note 1
R1
9.53k
2200p
C3
100p
47p
C1
49.9k
R2
C13
1.5p
L2
8.2n
1
V
CC
2
AGC_CTRL
3
PIN_O_IBIAS1
4
GND
5
LNA_OUT
6
LNA_OUT
LE
7
100p
C5
C4
13p
82n
L4
C6
PIN
2200p
PE
FROM
PA
NOTE 5
8
LNA_IN
9
49.9K
R5
10
PIN_O_IBIAS2
11
PIN_I_GND
0.01
12
RX_PE
13
R_REF
HFA3665
R6
14
BIAS_GND
PIN DIODE: MACOM MA4P282-1141
DUPLEXER: DFY2RR836CR881BHHN
MIX_V
CC
SEL
MIX_V
CC
MIX_IND
RF_IN
RF_RET
220p
0.33
47p
C7
L5
220p
0.1
18n
100p
?
4.7p
C9
C8
15n
L6
15p
SEL
RF_LO_INPUT
LO_RET
LO_IN
CDMA_OUT-
CDMA_OUT+
FM_OUT-
12p
100p
6.2K
R7
270n
L7
L8
270n
25.3p
C9
C10
25.3p
SAWTEK
855292
FM_OUT+
BIAS_V
CC
100p
6.6p
C12
0.33
L9
R8
6.2K
L10
390n
5p 330n
C11
MURATA SX439A
NOTE:
5. LNA degeneration inductance built with a PC trace to ground in combination with VLNA power supply to improve IIP3. A transmission line
inductance of 1.2nH at 882MHz to a solid ground plane is typical (see Test Diagram).
6
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