Evaluation Board User Guide
UG-159
Rev. A | Page 5 of 24
DEFAULT OPERATION AND JUMPER SELECTION
SETTINGS
This board is shipped with a TCXO, a low-pass filter, and a
VCO. For different configurations, users must remove the
supplied components and insert suitable ones to complete a
PLL. Link positions are outlined in Table 1.
Table 1. Link Positions and Function
Link
Position
Options
Description
LK1
A
B
R1A
RSET
Not used
Normal operation
LK2
A
B
GND
VDD
Hardware power-down
Normal operation
LK3 (V
DD
)
A
B
5 V
3 V
Not used
Normal operation
LK4 (V
VCO
)
A
B
5 V
3 V
VCO supply (5 V)
VCO supply (3 V)
LK5 (V
P
)
A
B
5 V
3 V
V
P
supply (5 V)
V
P
supply (3 V)
SYSTEM DEMONSTRATION PLATFORM (SDP)
The system demonstration platform (SDP) is a series of control-
ler boards, interposer boards, and daughter boards that can be
used for easy low cost evaluation of Analog Devices, Inc.,
components and reference circuits. It is a reusable platform
whereby a single controller board can be reused in various
daughter board evaluation systems.
Controller boards connect to the PC via USB 2.0 and provide a
range of communication interfaces on a 120-pin connector.
The pinout for this connector is strictly defined. This 120-pin
connector’s receptacle is on all SDP daughter boards, compo-
nent evaluation boards, and Circuits from the Lab™ reference
circuit boards. There are two controller boards in the platform:
the SDP-B, which is based on the Blackfin®
ADSP-BF527
, and
the SDP-S, which is a serial interface only controller board.
The SDP-S has a subset of the SDP-B functionality.
Interposer boards route signals between the SDP 120-pin con-
nector and a second connector. When the second connector is
also a 120-pin connector, the interposer can be used for signal
monitoring of the 120-pin connector signals. Alternatively, the
second connector allows SDP platform elements to be integrated
into a second platform, for example, the BeMicro SDK. More
information on the SDP can be found at
www.analog.com/sdp
.
