MAX8893A Datasheet, PDF (22/50 Pages) Maxim Integrated Products – μPMICs for Multimedia Application Processors in a 3.0mm x 2.5mm WLP

µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
Test Circuits/Timing Diagrams
0V OR V_{CC CB}
V_IN
COM1
NC1
MAX8893A
V_OUT
50I
MAX8893B NO1*
MAX8893C
NETWORK
ANALYZER
50I
50I
MEAS
50I
REF
50I
SWITCH IS ENABLED.
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 1. USB High-Speed Switch Off-Isolation and Crosstalk
OFF-ISOLATION = 20log ^VOUT
V_IN
CROSSTALK = 20log ^VOUT
V_IN
*FOR CROSSTALK THIS PIN IS NO2.
NC2 AND COM2 ARE OPEN.
MAX8893A
MAX8893B
MAX8893C
V_{IN_}
NO_
OR NC_
LOGIC
INPUT
EN (EN)
COM
R_L
V_OUT
C_L
C_L INCLUDES FIXTURE AND STRAY CAPACITANCE.
( ) ^VOUT ^{= V}IN_
R_L
R_L + R_ON
LOGIC ^VIH
INPUT _VIL
50%
tR < 5ns
tF < 5ns
SWITCH _0V
OUTPUT
t_OFF
V_{OUT 0.9 x V0UT}
t_ON
0.1 x V_OUT
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 2. USB High-Speed Switch Switching Time
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