
High Level Output Voltage: 2.4 V
Low Level Output Voltage: 0.4 V
Maximum Output Current: Low: 24 mA (sinking)
High: 24 mA (sourcing)
6.3.5 Counters/Timers– ADAC/5503HR and ADAC/5504HR
Number: 2 Counters / 2 Timers
Counter 0 Shared with ADCLKIN terminal
Counter 1 Shared with DACLKIN terminal
Counter 0/1Input Delay: - 100ns uncertainty
Counter 0/1 Maximum Count 65536
Counter 0/1 Maximum Input Freq. 900Khz
Timer 0 Shared with ADTGOUT terminal
Timer 1 Shared with ADCLKOUT terminal
Timer 0/1 Output Rate 7.6Htz to 500Khz 50 % Duty Cycle Square Wave
Counter Input Levels: 5 V CMOS/TTL with 4.7 K ohm pull-up resistor
High Level Input Voltage: 2 V min.
Low Level Input Voltage: 0.8 V max.
Timer Output Levels: 5 V CMOS/TTL with 4.7 K ohm pull-up resistor
High Level Output Voltage: 2.4 V
Low Level Output Voltage: 0.5 V
Maximum Output Current: Low: 24 mA (sinking)
High: 24 mA (sourcing)
6.3.6 Physical & Environmental
Size: 4.2" (10.6cm) H x 5.57" (14.1cm) L
Connector: 68 pin standard "SCSI Type III" female connector brought
to outside of PC.
Temp. Range of Operation: 0 °C – 55 °C
CE Conformity: EN 55022 Class B
EN50082-1
IEC801-2
IEC801-3
IEC801-4
ADAC Series 908196 -51- ADAC/5500 Series User’s Manual
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