
FREQUENCY RANGE
(GHz)
MAXIMUM INSERTION
LOSS (dB)
0–2.5
2.5–5
5 or greater
MAX4889B/MAX4889C
2.5/5.0Gbps PCIe Passive Switches
_______________________________________________________________________________________ 3
Note 3: All units are 100% production tested at T
A
= +85°C. Limits over the operating temperature range are guaranteed by design
and characterization and are not production tested.
Note 4: ΔR
ON
= R
ON (MAX)
- R
ON (MIN)
.
Note 5: Guaranteed by design, not production tested.
Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified
analog signal range.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.3V ±10%, T
A
=T
MIN
to T
MAX,
unless otherwise noted. Typical values are at V
CC
= +3.3V, T
A
= +25°C, unless otherwise
noted.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
AC PERFORMANCE
SEL-to-Switch Turn-On Time t
ON_SEL
Z
S
= Z
L
= 50Ω 80 ns
SEL-to-Switch Turn-Off Time t
OFF_SEL
Z
S
= Z
L
= 50Ω, Figure 1 15 ns
Propagation Delay t
PD
Z
S
= Z
L
= 50Ω, Figure 2 50 ps
Output Skew Between Pairs t
SKEW1
Z
S
= Z
L
= 50Ω, Figure2 50 ps
Output Skew Between Same Pair t
SKEW2
Z
S
= Z
L
= 50Ω, Figure 2 10 ps
0Hz < f ≤ 2.8GHz -14
2.8GHz < f ≤ 5.0GHz -8
Differential Return Loss (Note 5) S
DD11
f > 5.0GHz -3
dB
Differential Insertion Loss (Note 5) S
DD21
See Table 1 dB
0Hz < f ≤ 2.5GHz -40
2.5GHz < f ≤ 5.0GHz -30
Differential Crosstalk (Note 5) S
DDCTK
f > 5.0GHz -25
dB
0Hz < f ≤ 2.5GHz -15
2.5GHz < f ≤ 5.0GHz -12
Differential Off-Isolation (Note 5) S
DD21_OFF
f > 5.0GHz -12
dB
CONTROL INPUT (SEL)
Input Logic High V
IH
1.4 V
Input Logic Low V
IL
0.6 V
Input Logic Hysteresis V
HYST
130 mV
POWER SUPPLY
Power-Supply Range V
CC
3.0 3.6 V
V
CC
Supply Current I
CC
V
SEL
= 0 or V
CC
1mA
Table 1. Insertion Loss Mask
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