ICS8S89874I Datasheet, PDF (6/19 Pages) Integrated Device Technology – 1:2 Differential-to-LVPECL Buffer/Divider

ICS8S89874I Data Sheet
1:2 DIFFERENTIAL-TO-LVPECL BUFFER/DIVIDER
AC Electrical Characteristics
Table 5. AC Characteristics, V_CC = 3.3V ± 10% or 2.5V ± 5%, V_EE = 0V, T_A = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum Typical
f_OUT
f_IN
t_PD
Output Frequency
Input Frequency
Propagation Delay; (Differential);
NOTE 1
Output Swing ≥ 450mV
÷2, ÷4, ÷8, ÷16
Input Swing: <400mV
Input Swing: ≥ 400mV
460
640
430
615
tsk(o)
Output Skew; NOTE 2, 4
tsk(pp) Part-to-Part Skew; NOTE 3, 4
tjit
Buffer Additive Jitter; RMS; refer to
Additive Phase Jitter Section; NOTE 5
155.52MHz, Integration Range:
12kHz – 20MHz
0.20
t_RR
t_R / t_F
Reset Recovery time
Output Rise/Fall Time
600
20% to 80%
70
Maximum
2
2.5
840
810
15
250
250
Units
GHz
GHz
ps
ps
ps
ps
ps
ps
ps
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.
NOTE: All parameters characterized at ≤ 1GHz, 800mV input signal, unless otherwise noted.
NOTE 1: Measured from the differential input crossing point to the differential output crossing point.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions.
Measured at the output differential cross points.
NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltage, same temperature, same frequency and
with equal load conditions. Using the same type of inputs on each device, the outputs are measured at the differential cross points.
NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 5: Pass through, ÷1 mode.
ICS8S89874BKI REVISION A OCTOBER 22, 2010
6
©2010 Integrated Device Technology, Inc.