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83905-01 Datasheet, PDF (7/20 Pages) Integrated Device Technology – Outputs able to drive 12 series terminated lines
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83905-01 DATA SHEET
Table 6D. AC Characteristics, VDD = 1.8V ±0.2V, VDDO = 1.5V ±0.1V, TA = 0°C to 70°C
Symbol Parameter
Test Conditions
Minimum
Using External Crystal
10
fMAX
Output
Frequency
Using External Clock
Source; NOTE 1
1
tsk(o) Output Skew; NOTE 2, 3
tjit
RMS Phase Jitter (Random)
25MHz, Integration Range:
100Hz – 1MHz
tR / tF
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
300
40
tEN
Output Enable ENABLE1
Time; NOTE 4 ENABLE2
tDIS
Output Disable ENABLE1
Time; NOTE 4 ENABLE2
Typical
0.18
50
Maximum
40
100
90
650
60
4
4
4
4
Units
MHz
MHz
ps
ps
ps
%
cycles
cycles
cycles
cycles
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium
has been reached under these conditions.
All parameters measured at ƒ 40MHz using a crystal input unless noted otherwise. Outputs terminated with 50 to VDDO/2.
NOTE 1: XTAL_IN can be overdriven by an external source.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at VDDO/2.
NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 4: These parameters are guaranteed by design. Not tested in production.
Table 6E. AC Characteristics, VDD = 1.8V ±0.2V, VDDO = 1.2V ±5%, TA = 0°C to 70°C
Symbol Parameter
Test Conditions
Minimum
Using External Crystal
10
fMAX
Output
Frequency
Using External Clock
Source; NOTE 1
1
tsk(o) Output Skew; NOTE 2, 3
tjit
RMS Phase Jitter (Random)
25MHz, Integration Range:
100Hz – 1MHz
tR / tF
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
350
42
tEN
Output Enable ENABLE1
Time; NOTE 4 ENABLE2
tDIS
Output Disable ENABLE1
Time; NOTE 4 ENABLE2
Typical
0.2
50
Maximum
40
100
95
800
58
4
4
4
4
Units
MHz
MHz
ps
ps
ps
%
cycles
cycles
cycles
cycles
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium
has been reached under these conditions.
All parameters measured at ƒ 40MHz using a crystal input unless noted otherwise. Outputs terminated with 50 to VDDO/2.
NOTE 1: XTAL_IN can be overdriven by an external source.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at VDDO/2.
NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 4: These parameters are guaranteed by design. Not tested in production.
REVISION 1 05/01/15
7
LOW SKEW, 1:6 CRYSTAL-TO-LVCMOS FANOUT BUFFER
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