Philips Semiconductors
PCKEP14
2.5 V/3.3 V 1:5 differential ECL/PECL/HSTL clock driver
Product data Rev. 01 — 30 October 2002 7 of 15
9397 750 09565
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
[1] Devices are designed to meet the DC specifications shown in the above table, after thermal equilibrium has been established. The
circuit is in a test socket or mounted on a printed circuit board and transverse air flow greater than 500 LFPM is maintained.
[2] Input and output parameters vary 1:1 with V
CC
. V
EE
can vary +0.925 V to −0.5 V.
[3] All loading with 50 Ω to V
CC
− 2V.
[4] Single-ended input operation is limited to V
EE
≤ 3.0 V in NECL mode.
[5] V
IHCMR(min)
varies 1:1 with V
EE
, V
IHCMR(max)
varies 1:1 with V
CC
. The V
IHCMR
range is referenced to the most positive side of the
differential input signal.
Table 8: NECL DC characteristics
[1]
V
CC
=0V; V
EE
=
−
3.8 V to
−
2.375 V
[2]
Symbol Parameter Conditions T
amb
= −40 °C T
amb
= +25 °C T
amb
= +85 °C Unit
Min Typ Max Min Typ Max Min Typ Max
I
EE
power supply
current
45 60 75 45 60 75 45 60 95 mA
V
OH
HIGH-leveloutput
voltage
[3]
−1145 −1020 −895 −1145 −1000 −895 −1145 −990 −895 mV
V
OL
LOW-level output
voltage
[3]
−1945 −1785 −1695 −1945 −1800 −1695 −1945 −1800 −1695 mV
V
IH
HIGH-level input
voltage
single-ended −1165 - −880 −1165 - −880 −1165 - −880 mV
V
IL
LOW-level input
voltage
single-ended −1945 - −1625 −1945 - −1625 −1945 - −1625 mV
V
BB
output reference
voltage
[4]
−1425 −1335 −1235 −1435 −1335 −1235 −1415 −1320 −1230 mV
V
IHCMR
HIGH-level input
voltage, common
mode range
(differential)
[5]
V
EE
+1.2 0 V
EE
+1.2 0 V
EE
+1.2 0 V
I
IH
HIGH-level input
current
- - 150 - - 150 - - 150 µA
I
IL
LOW-level input
current
CLK 0.5 - - 0.5 - - 0.5 - - µA
CLK −150 - - −150 - - −150 - - µA
Table 9: HSTL DC characteristics
V
CC
= 2.375 V to 3.8 V; V
EE
=0V.
Symbol Parameter Conditions T
amb
= −40 °C T
amb
= +25 °C T
amb
= +85 °C Unit
Min Typ Max Min Typ Max Min Typ Max
V
IH
HIGH-level input
voltage
1200 - - 1200 - - 1200 - - mV
V
IL
LOW-level input
voltage
- - 400 - - 400 - - 400 mV
