UG-1271
Rev. 0 | Page 4 of 17
EVALUATION BOARD HARDWARE
POWER SUPPLIES
Connector J1 provides access to the supply pins of the
. V
DD
, GND, and V
SS
on the J1 terminal block link to the
appropriate pins on the
. For dual-supply
voltages, the evaluation board can be powered from ±15 V. For
single-supply voltages, the GND and V
SS
terminals must
connect together and power the evaluation board from 12 V.
Additionally, the SDP supplies 3.3 V to the RESET/V
L
pin of the
when Link LK1 is in Position B. When
using a method other than the SDP to control the
, supply between 2.7 V and 5.5 V to the RESET/
V
L
pin of the
via the EXT_VL screw
terminal input on J1. LK1 must be in Position A.
INPUT SIGNALS
Provided are screw connectors J2, J3, and J6 to connect to both
the source and drain pins of the
Additional Subminiature Version B (SMB) connector pads are
available if extra connections are required.
Each trace on the source and drain pins includes two sets of
0603 pads, which place a load on the signal path to ground. A
0 Ω resistor is placed in the signal path and can be replaced
with a user defined value. The resistor, combined with the 0603
pads, creates a simple resistor capacitor filter.
DIGITAL OUTPUTS
The GPOx digital outputs are accessible from Screw Connector J7
and there are additional SMB connector footprints available if
extra connections are required.
LINK OPTIONS
The EVAL-ADGS1208SDZ/EVAL-ADGS1209SDZ evaluation
boards provide several link options that must be set at the
required operating conditions before use.
Table 1 describes the positioning of the links necessary for
controlling the evaluation board via the SDP board using a PC
and external power supplies. Table 2 describes the functions of
these link options.
LK1 must be in Position B to avoid damaging the SDP when
using it in conjunction with the EVAL-ADGS1208SDZ/
EVAL-ADGS1209SDZ.
Table 1. Link Options for SDP Control (Default)
Link Number
Option
LK1
B
LK2
B
Table 2. Link Functions
Link Number
Function
LK1
This link selects the source of the V
L
voltage supplied to the
Position A selects EXT_VL from J1.
Position B selects the 3.3 V from the SDP.
LK2
This link selects how a hardware reset is performed.
Position A indicates the SW1 push-button can perform a hardware reset.
Position B indicates the SDP can perform a hardware reset.
