rf2057 RF Micro Devices, rf2057 Datasheet - Page 35

• Manufacturer Part Number: rf2057
• Description: High Performance Wideband Rf Pll/vco With Integrated Rf Mixers For Repeaters
• Manufacturer: RF Micro Devices

The following diagrams show the schematic and PCB layout of the RF2057 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 (DK2057),
along with the necessary cables and programming software tool to enable full evaluation of the RF2057.
DS091109
DSR#
CTS#
VDD
VDD
CB2
CB4
UIO
12
11
10
11
13
15
17
19
21
23
9
8
7
6
5
4
3
2
1
1
3
5
7
9
Socket for USB
HDR_2X12
Interface
13
14
15
16
17
18
19
20
21
22
23
24
10
12
14
16
18
20
22
24
2
4
6
8
SLD
USB
VCC
PU2
PU1
CB3
VDD
RST#
VCC
CB1
CB0
RESETB
ENX
SCLK
SDATA
ENBL
CP_OP
VTUNE
MODE
LFILT1
10 uF
C11
VDDD
470 pF
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
12 k
C9
10 nF
33 pF
C34
R3
C5
10 uF
C12
VDDA
VDDA
R20
0 R
LFILT2
RESETB
SDATA
CP_OP
VTUNE
MODE
ENBL
Loop Filter
REF
22 pF
J6
820 R
Evaluation Board Schematic
C8
R2
100 k
51 k
R21
330 pF
DNI
DNI
R1
R5
R4
820 R
R19
C10
DNI
R6
LFILT1
LFILT3
Evaluation Board
33 pF
C35
LFILT2
DNI
C7
SCLK
33 pF
C15
33 pF
C36
4
330 pF
C22
DNI
1
2
3
4
5
6
7
8
26 MHz XTAL
C17
LFILT3
GND
33 pF
C16
DNI
ENX
C14
32
9
GND
31
10
3
2
33 pF
C13
30 29 28
11
Component
Designator
R19
R20
C10
C17
R3
C9
C8
R2
R6
12
33 pF
C1
13
(As Fitted on Evaluation Board)
27 26
14
60 kHz Active Loop Filter
TC-1-13M
15 16
T4
Loop Filter Component Values
DNI
L1
25
470 pF
330 pF
330 pF
12 k
820 
820 
22 pF
DNI
0 
24
23
22
21
20
19
18
17
100 pF
100 pF
C29
C30
DNI
R8
TC1-1-13M
DNI
33 pF
L2
C2
T2
C33
DNI
R17
0 R
60 kHz Passive Loop Filter
(Alternative Configuration)
R11
VDDA
100 pF
100 pF
33 pF
DNI
C24
C23
C3
50 strip
TC4-19+
VDDD
560 pF
3.9 k
120 pF
12 k
39 pF
DNI
0 
0 
DNI
T1
C31
10 nF
DNI
C19
R15
0 R
VDDA
VDDA
100 pF
100 pF
100 pF
100 pF
C21
C20
C28
10 nF
C6
50 strip
C18
T3
C25
DNI
R14
0 R
100 pF
100 pF
C26
C27
RF2057
50 strip
C32
DNI
R16
0 R
50 strip
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RF OP2
RF IP2
RF OP1
RF IP1
J2
J4
J1
J3