DUT INSTALLATION
SOCKET PINOUT
A daughterboard arrangement is used to accommodate difference device packages
and bias conditions. An arrangement of pin sockets on the main motherboard accepts
these daughterboards.
The AVRQ-4-B mainframe provides the high-voltage common mode pulse (which is tied
to GND1), and VCC2 / GND2 (the non-floating output-side power supply). The user is
responsible for configuring the daughterboards to implement the correct input side
power (VCC1), biasing, filtering, loading, socketing, and glitch measurement. The
included sample boards implement these requirements for common DIP8 devices,
using configurable jumpers/resistors/capacitors. A probe point is provided on the
motherboard for observation of the device logic output with a user-provided probe and
oscilloscope. An optional probe point is also provided on the sample daughterboards.
The ground-referenced output-side power (VCC2) is generated by the mainframe, and
is adjustable (+3V to +8V, or to +43V with the -SCHB option, 150 mA maximum). The
floating input-side power is not provided by the mainframe. Instead, an A23-type 12V
battery should be installed on the DUT daughterboard to provide a floating power
source, along with a basic regulator circuit to provide the necessary reg5V
power (VCC1). A isolated battery arrangement is used to ensure that the VCC1 power
supply is not the source of any glitches observed in the operation of the DUT.
The AVRQ-4-B provides a pin socket arrangement into which the daughterboard may
be plugged. The simplified circuit diagram of the socketing on the mainframe is shown
below:
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Содержание AVRQ-4-B
Страница 41: ...41...
Страница 51: ...Bottom side 51...
Страница 67: ...PCB 158R5 LOW VOLTAGE POWER SUPPLY...
Страница 68: ...PCB 104G KEYPAD DISPLAY BOARD...
Страница 69: ...PCB 228C OP AMPS AHV AND XHV UNITS...
Страница 71: ...DUT WIRING ON STANDARD DAUGHTERBOARD PCB 267D...
Страница 72: ...DUT WIRING ON SO 8 DAUGHTERBOARD PCB 314A...
Страница 73: ...DUT WIRING ON WDIP16 DAUGHTERBOARD PCB 325A...
Страница 75: ...PERFORMANCE CHECK SHEET 75...