7©2015 Inte grated Device Technology, Inc December 11, 2015
8312 Data sheet
AC Electrical Characteristics
Table 5A. AC Characteristics, VDD = VDDO = 3.3V ± 5%, TA = 0°C to 85°C
All parameters measured at fMAX unless noted otherwise.
NOTE 1: Measured from the VDD/2 of the input to VDDO/2 of the output.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at VDDO/2.
NOTE 3: Defined as skew between outputs on different devices operating a the same supply voltage and with equal load conditions.
Using the same type of input on each device, the output is measured at VDDO/2.
NOTE 4: These parameters are guaranteed by characterization. Not tested in production.
NOTE 5: This parameter is defined in accordance with JEDEC Standard 65.
Table 5B. AC Characteristics, VDD = VDDO = 2.5V ± 5%, TA = 0°C to 85°C
All parameters measured at fMAX unless noted otherwise.
NOTE 1: Measured from the VDD/2 of the input to VDDO/2 of the output.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at VDDO/2.
NOTE 3: Defined as skew between outputs on different devices operating a the same supply voltage and with equal load conditions.
Using the same type of input on each device, the output is measured at VDDO/2.
NOTE 4: These parameters are guaranteed by characterization. Not tested in production.
NOTE 5: This parameter is defined in accordance with JEDEC Standard 65.
Parameter Symbol Test Conditions Minimum Typical Maximum Units
fMAX Output Frequency 250 MHz
tpLH Propagation Delay, Low to High; NOTE 1 ƒ 250MHz 1.2 1.9 2.5 ns
tjit Buffer Additive Phase Jitter, RMS; refer to
Additive Phase Jitter Section
100MHz, Integration Range:
12kHz – 20MHz 0.037 ps
tsk(o) Output Skew; NOTE 2, 5 125 ps
tsk(pp) Part-to-Part Skew; NOTE 3, 5 800 ps
tR / tFOutput Rise/Fall Time; NOTE 5 20% to 80% 200 700 ps
odc Output Duty Cycle ƒ 200MHz 45 55 %
Parameter Symbol Test Conditions Minimum Typical Maximum Units
fMAX Output Frequency 250 MHz
tpLH Propagation Delay, Low to High; NOTE 1 ƒ 250MHz 1.4 2.3 3.2 ns
tjit Buffer Additive Phase Jitter, RMS; refer to
Additive Phase Jitter Section
100MHz, Integration Range:
12kHz – 20MHz 0.022 ps
tsk(o) Output Skew; NOTE 2, 5 150 ps
tsk(pp) Part-to-Part Skew; NOTE 3, 5 1.1 ns
tR / tFOutput Rise/Fall Time; NOTE 5 20% to 80% 200 700 ps
odc Output Duty Cycle ƒ 150MHz 45 55 %