ST5090TQFPTR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST5090TQFPTR Datasheet PDF : 29 Pages
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ST5090
APPLICATIONS
Application Note for Microphone Connections
ST5090
ST5090
ST5090
Application Note for VFr and VLr Connections
DYNAMIC RECEIVERS
(32Ω)
VFr+
CERAMIC RECEIVERS
(50nF)
R
VFr+
DYNAMIC/CERAMIC RECEIVERS
(REVERSIBLE)
VFr+
VFr-
ST5090
VLr+
VLr-
VFr-
ST5090
R
VLr+
VLr-
VFr-
ST5090
R
VLr+
VLr-
R must be greater than 30Ω
For higher capacitive transducers, lower R values can be used.
D93TL078A
POWER SUPPLIES
While pins of ST5090 device are well protected
against electrical misuse, it is recommended that
the standard CMOS practise of applying GND be-
fore any other connections are made should al-
ways be followed. In applications where the
printed circuit card may be plugged into a hot
socket with power and clocks already present, an
extra long ground pin on the connector should be
used.
To minimize noise sources, all ground connec-
tions to each device should meet at a common
point as close as possible to the GND pin in order
to prevent the interaction of ground return cur-
rents flowing through a common bus impedance.
A power supply decoupling capacitor of 0.1 µF
should be connected from this common point to
VCC as close as possible to the device pins.
26/29
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