TB5D1M Datasheet, PDF (5/21 Pages) Texas Instruments – QUAD DIFFERENTIAL PECL DRIVERS

TB5D1M, TB5D2H
www.ti.com
SLLS579C – SEPTEMBER 2003 – REVISED JANUARY 2008
SWITCHING CHARACTERISTICS, 3.3-V NOMINAL SUPPLY
over recommended operating conditions unless otherwise noted
parameter
test conditions
min
typ ⁽¹
)
max
unit
t_P1
t_P2
Δt_P
t_PHZ
t_PLZ
t_PZH
t_PZL
t_skew1
t_shew2
t_skew(pp)
Δt_skew
t_TLH
t_THL
Propagation delay time, input high to output⁽²⁾
Propagation delay time, input low to output⁽²⁾
Capacitive delay
Propagation delay time, high-level-to-high-impedance output
Propagation delay time, low-level-to-high-impedance output
Propagation delay time, high-impedance-to-high-level output
Propagation delay time, high-impedance-to-low-level output
Output skew, |t_P1 - t_P2|
Output skew, |t_PHH - t_PHL|, |t_PLH - t_PLL|
Part-to-part skew⁽³⁾
Output skew, difference between drivers⁽⁴⁾
Rise time (20% - 80%)
Fall time (80% - 20%)
C_L = 5 pF, See Figure 1 and
Figure 4
C_L = 5 pF, See Figure 2 and
Figure 4
C_L = 5 pF, See Figure 1 and
Figure 4
C_L = 5 pF, See Figure 1 and
Figure 4
1.2 3.5
ns
1.2 3.5
0.01 0.03 ns/pF
8
12
5
12
ns
5
12
8
12
0.15 0.3
0.15 1.2
ns
0.1
1
0.3
0.7
2
ns
0.7
2
(1) All typical values are at 25C and with a 3.3-V supply.
(2) Parameters t_P1 and t_P2 are measured from the 1.5 V point of the input to the crossover point of the outputs (see Figure 1).
(3) t_skew(pp) is the magnitude of the difference in differential propagation delay times, t_P1 or t_P2, between any specified outputs of two devices
when both devices operate with the same supply voltage, at the same temperature, and have identical packages and test circuits.
(4) Δt_skew is the magnitude of the difference in differential skew t_skew1 between any specified outputs of a single device.
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