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TP5510NNSN/a2696avaiFull Duplex Analog Front End for Consumer Applications
TP5510WMNSN/a624avaiFull Duplex Analog Front End for Consumer Applications


TP5510N ,Full Duplex Analog Front End for Consumer ApplicationsApplications: Tapeless Answering Machines, CordlessPhones, Cellular RadioConnectionDiagramDual-In-L ..
TP5510WM ,Full Duplex Analog Front End for Consumer ApplicationsFeaturesYComplete A/D and D/A with filter system including:The TP5510 consists of am-law monolithic ..
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TP5510N-TP5510WM
Full Duplex Analog Front End for Consumer Applications
TL/H/11186
TP5510
Full
Duplex
Analog
Front
End
(AFE)
for
Consumer
Applications
February 1997
TP5510
Full Duplex Analog Front End (AFE)
for Consumer Applications
General Description
The TP5510 consistsofa m-law monolithic AFE deviceuti-
lizingthe A/D and D/A conversion architecture shownin
Figure1,anda serial data interface.The deviceis fabricat- using National’s advanced double-poly CMOS process
(microCMOS).
The A/D portionofthe device consistsofan input gain
adjust amplifier,an activeRC pre-filterwhich eliminatesvery
high frequency noise, anda switched-capacitor band-pass
filterthat rejects signals below200Hzand above 3400Hz.
Also includedare auto-zero circuitry anda compressing
A/D which samplesthe filtered signaland convertsittothe
m-law digital format. The decode portionofthe device con-
sistsofan expanding D/A, which reconstructsthe analog
signal fromthe compressed m-law code,a low-pass filter
which correctsforthesinx/x responseofthe D/A output
and rejects signals above 3400Hz, followedbya single-
ended power amplifier capableof drivinglow impedance
loads. The device requiresa 1.536 MHz, 1.544 MHzor
2.048 MHz master clock,bit clocks which may vary from64
kHzto 2.048 MHz;and8kHz frame sync pulses.
Features Complete A/D and D/A with filter system including: Serial Data Interface Encode high-passand low-pass filter Decode low-pass filter withsinx/x correction ActiveRC noise filters m-law compatible A/Dand D/A Internal precision voltage reference Internal auto-zero circuitry m-lawÐTP5510 g5V operation Low operating powerÐtypically60mW Power-down standby modeÐtypically3 mW Automatic power-down TTLor CMOS compatible digital interfaces MaximizesPC card circuit density PlasticDIPand SOIC packages 8-bit digitalI/O 13-bit dynamic range Use with DSP processor Applications: Tapeless Answering Machines, Cordless
Phones, Cellular Radio
Connection Diagram
Dual-In-Line Package
TL/H/11186–1
Top View
OrderNumber TP5510WM
SeeNS Package Number M16B
Order NumberTP5510N
SeeNS PackageNumberN16A
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
C1996National SemiconductorCorporation RRD-B30M27/Printed inU.S.A. http://
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