RF2051
Evaluation Board
The following diagrams show the schematic and PCB layout of the RF2051 evaluation board.The standard evaluation board
has been configured for wideband operation. Application notes have been produced showing how the device is matched and
on balun implementations for narrowband applications. The evaluation board is provided as part of a design kit (DK2051),
along with the necessary cables and programming software tool to enable full evaluation of the RF2051.
Evaluation Board Schematic
CB2 12
CB4 11
CTS# 10
9
13 SLD
14 USB
15 VCC
16 PU2
17 PU1
18 CB3
19 VDD
20 RST#
21 VCC
22 CB1
23 CB0
24
Loop Filter
Loop Filter Component Values
60 kHz Active Loop Filter 60 kHz Passive Loop Filter
Designator (As FittedonEvaluationBoard)
Component
R19
DNI
(Alternative Configuration)
LFILT1
R3
12 k
470 pF
22 pF
DNI
12 k
R3
12 k
C8
22 pF
C9
560 pF
39 pF
3.9 k
DNI
C8
DSR#
8
7
6
5
4
3
2
1
R19
R20
R2
C9
470 pF
0
R2
820 R
R6
820 R
820
330 pF
820
330 pF
0
LFILT3
C10
R6
0
R20
0 R
C10
330 pF
C17
330 pF
DNI
C17
120 pF
UIO
LFILT2
VDDA
C1
C6
33 pF
100 pF
Socket for USB
Interface
RESETB
L1
DNI
R8
DNI
C21
100 pF
R14
0 R
T1
50 strip
1
3
5
7
9
2
4
6
8
RESETB
ENX
J1
RF OP2
C15
33 pF
C14
33 pF
C13
33 pF
C25
DNI
C20
100 pF
TC4-19+
SCLK
ENX
SCLK
SDATA
SDATA
ENBL
C24
10 ENBL
R15
0 R
R21
100 k
100 pF
C35
33 pF
50 strip
J2
RFIP2
VDD 11
12
14
VDDA
C12
10 uF
C31
DNI
VDD 13
VDDD
C11
10 uF
32 31 30 29 28 27 26 25
CP_OP
VTUNE
15
17
19
21
23
16
18
T2
C23
77 strip
77 strip
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
100 pF
VDDA
VDDA
20 MODE
TC1-1-13M
R1
51 k
22
24
C34
10 nF
C2
33 pF
C18
10 nF
C3
33 pF
LFILT1
VDDD
HDR_2X12
C5
33 pF
CP_OP
VTUNE
R5
DNI
C19
10 nF
LFILT2
L2
DNI
R11
DNI
VDDA
C27
R16
0 R
T3
R4
DNI
100 pF
50 strip
9
10 11 12 13 14 15 16
LFILT3
J3
RF OP1
C32
DNI
C29
100 pF
C26
100 pF
T4
C28
100 pF
MODE
C36
33 pF
R17
0 R
TC-1-13M
50 strip
J4
RFIP1
C16
DNI
C30
100 pF
C33
DNI
4
GND
3
2
GND
26 MHz XTAL
J6
REF
C7
DNI
C22
DNI
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
36 of 39
DS140110
RFMD [ RF MICRO DEVICES ]
