UG-1962
Rev. 0 | Page 7 of 14
OPERATING THE ADPA1107-EVALZ WITH THE DRAIN BIAS PULSER BOARD
The ADPA1107-EVALZ ships with a drain bias pulser board. A
block diagram of the pulser board is shown in Figure 4. The pulser
board has two primary components. The IRFZ48NSTRLPBF is
an 55 V/64 A, metal-oxide semiconductor field effect transistor
(MOSFET) that switches the drain voltage to the ADPA1107
on and off, and the MIC5021YN is a high-side, MOSFET, static
switch driver that controls the IRFZ48NSTRLPBF MOSFET.
The pulser board plugs into the J3 and J4 headers of ADPA1107-
EVALZ and can be configured to provide a pulsed drain voltage
and a negative gate control voltage to control the biasing of the
ADPA1107.
Table 3. J1 to J5, TP1 to TP4, P1, and P2 Pulser Board Connections to the ADPA1107
Header
Header Pin Number
Header Pin Name
J1 Not
applicable
VDD
J2 Not
applicable
SENSE
J3 Not
applicable
VG1
J4 Not
applicable
Pulse
J5 Not
applicable
PULSED_VDD
VREFBIAS Not
applicable
VREFBIAS
VREF Not
applicable
VREF
VDET Not
applicable
VDET
VDETBIAS Not
applicable
VDETBIAS
P1 1
VDET
2
VDET_BIAS
3, 5, 7, 9, 10, 11, 12, 13, 14, 15, 17, 19, 21, 22, 23, 24
GND
4, 6, 8
PULSED_VDD
16, 18, 20
VG1
P2
1, 2, 3, 4, 5, 7, 9 ,11, 12, 13, 14, 15, 16, 17, 19, 21
GND
6, 8, 10
VG1
18, 20, 22
PULSED_VDD
23
VREF
24
VREF_BIAS