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TP3070VNSCN/a820avaiCOMBO II Programmable PCM CODEC/Filter
TP3071AN-G |TP3071ANGNSN/a15avaiCOMBO II Programmable PCM CODEC/Filter
TP3071JNS?N/a500avaiCOMBO II Programmable PCM CODEC/Filter


TP3070V ,COMBO II Programmable PCM CODEC/FilterFeaturesn Complete CODEC and FILTER system including:The TP3070 and TP3071 are second-generation co ..
TP3070V-G ,COMBO II Programmable PCM CODEC/FilterBlock DiagramDS008635-1FIGURE 1.Connection DiagramsDS008635-2Order Number TP3071JSee NS Package Num ..
TP3070V-G/NOPB ,COMBO II Programmable PCM CODEC/Filter 28-PLCC Block DiagramDS008635-1FIGURE 1.Connection DiagramsDS008635-2Order Number TP3071JSee NS Package Num ..
TP3070V-XG ,COMBO II Programmable PCM CODEC/FilterTP3070, TP3071, TP3070-X COMBO II Programmable PCM CODEC/FilterApril 1994TP3070, TP3071, TP3070-X®C ..
TP3071AN-G ,COMBO II Programmable PCM CODEC/FilterPin Descriptionprovided on the TP3071. Serial controlFS Receive Frame Sync input. Normally a pulseR ..
TP3071J ,COMBO II Programmable PCM CODEC/FilterPin DescriptionSee NS Package Number V28AV +5V ±5% power supply.CCV −5V ±5% power supply.BBGND Grou ..
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TQ2SA-12V , 2-pole 5 mm Surface Mount Relay, JIS C0806 compliant Measurement equipment
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TQ2SA-12V-Z , 2-pole 5 mm Surface Mount Relay, JIS C0806 compliant Measurement equipment
TQ2SA-12V-Z , 2-pole 5 mm Surface Mount Relay, JIS C0806 compliant Measurement equipment


TP3070V-TP3071AN-G-TP3071J
COMBO II Programmable PCM CODEC/Filter
TP3070, TP3071, TP3070-X
COMBO®II Programmable PCM CODEC/Filter
General Description

The TP3070and TP3071are second-generation combined
PCM CODECand Filter devices optimizedfor digital switch-
ing applicationson subscriberlineand trunk cards. Using
advanced switched capacitor techniques, COMBOII com-
bines transmit bandpass andreceive lowpass channelfilters
witha companding PCM encoderand decoder.The devices
are A-law and μ-law selectableand employa conventional
serial PCM interface capableof being clockedupto
4.096 MHz.A numberof programmable functions maybe
controlledviaa serial control port.
Channel gainsare programmable overa 25.4dB rangein
each direction,anda programmable filteris includedtoen-
able Hybrid Balancingtobe adjustedtosuita wide rangeof
loop impedance conditions. Both transformer and active
SLIC interface circuits withrealor complex terminationim-
pedancescanbe balancedbythis filter,with cancellationin
excessof30dB being readily achievable when measured
acrossthe passband against standardtest terminationnet-
works. enableCOMBOIIto interfacetothe SLIC control leads,a
numberof programmablelatchesareincluded; each maybe
configuredas eitheran inputoran output.The TP3070pro-
vides6 latchesandthe TP30715 latches.
Features
Complete CODECand FILTER system including: Transmitand receive PCM channel filters μ-lawor A-law companding encoderand decoder Receive power amplifier drives 300Ω 4.096 MHz serial PCM data (max) Programmable Functions: Transmit gain: 25.4dB range,0.1dB steps Receive gain: 25.4dB range,0.1dB steps Hybrid balance cancellation filter Time-slot assignment;upto64 slots/frame2port assignment (TP3070)6 interface latches (TP3070) Aor μ-law Analog loopback Digital loopback Direct interfaceto solid-state SLICs Simplifies transformer SLIC; single winding secondary Standard serial control interface80 mW operating power (typ)1.5 mW standby power (typ) Designedfor CCITTand LSSGR applications TTLand CMOS compatible digital interfaces Extended temperature versions availablefor −40˚Cto
+85˚C (TP3070V-X)
Note:
Seealso AN-614, COMBOIIapplicationguide.
COMBO®andTRI-STATE®are registeredtrademarksofNationalSemiconductor Corporation.
April 1994
TP3070,
TP3071,
TP3070-X
COMBO
Programmable
PCM
CODEC/Filter
1999 National Semiconductor Corporation DS008635
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