RFDA0066 Datasheet, PDF (14/18 Pages) RF Micro Devices – DIGITAL CONTROLLED VARIABLE GAIN AMPLIFIER 5MHz TO 1GHz, 12-BIT 0.5dB LSB CONTROL

RFDA0066
Evaluation Board Schematic
400MHz to 1GHz Application Circuit
VDD
CLK
LE
DATA
PUP
VCC
P1
1
2
3
4
5
6
HDR_1X6
R1
27.4
+
C1 0
C9
10uF
1uF
L1
68nH
C8
100pF
P2
VCC
1
2
HDR_1X2
C6
C5
1uF
C4
120pF
C3
120pF
C2
120pF
J1
RFIN
1
C1
2.2uF
120pF
1 _{AMP1 _IN}
2 _{DSA1 _OUT}
3 _ACG1
4 _ACG2
5 _ACG3
6 _ACG4
7 _{DSA1 _IN}
R5
R4
VDD
1K
DNP
PUP
DATA
LE
RN1
1
2
3
4
CLK
5
6
7
8
C2 1
DNP
1K
C7
1uF
U1
RFDA0066
C12
120pF
C13
120pF
C14
120pF
ACG5 ²¹
GND ²⁰
DSA2 _OUT ¹⁹
AMP2 _IN ¹⁸
GND ¹⁷
GND ¹⁶
AMP2 _OUT ¹⁵
PUP
C15
120pF
C16
1uF
R6
DNPCLK
DATA
LE
P3
1 _TXD
GND ²⁴
2 _DTR#
CB0 ²³
3 _RTS#
CB1 ²²
4 _VIO
VCC ²¹
5 _RXD
RST ²⁰
6 _RI#
3V3 ¹⁹
7 _GND
CB3 ¹⁸
8 _DSR#
PU1 ¹⁷
9 _{DCD# PU2} 16
10 _{CTS# VCC} 15
11 _CB4
USB ¹⁴
12 _CB2
SLD ¹³
UM2 32R
C17
L2
68nH
C18
100pF
2.2uF
R3
+
C19
1uF
27.4
C2 0
10uF
J2
1
RFOUT
VCC
VDD
C22
C23
10000pF 1uF
14 of 18
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