HOME>在庫検索>在庫情報
AM79R79-3JC
Am79R79*/Le79R79 Ringing Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS I Ideal for short-loop applications I Programmable constant-current feed I Ideal for ISDN terminal adaptor and fixed radio access applications I Programmable Open Circuit voltage I On-chip ringing with on-chip ring-trip detector I Current gain = 1000 I Low standby state power I Programmable loop-detect threshold I Ground-key detector I Battery operation: — VBAT1: –40.5 V to –75 V I Tip Open state for ground-start lines I Polarity reversal option available I On-chip battery switching and feed selection I Internal VEE regulator (no external –5 V power supply required) I On-hook transmission I Two on-chip relay drivers and snubber circuits I Two-wire impedance set by single external impedance I Space Saving Package Options (8x8 QFN) — VBAT2: –19 V to VBAT1 BLOCK DIAGRAM Relay Driver RTRIP1 RTRIP2 RYOUT2 RYE Relay Driver A(TIP) Ring-Trip Detector Input Decoder and Control Ground-Key Detector HPA Two-Wire Interface RYOUT1 D1 D2 C1 C2 C3 Off-Hook Detector E1 DET Signal Transmission RD VTX RSN HPB B(RING) RINGIN RDC RDCR Power-Feed Controller VBAT2 RSGL RSGH B2EN Switch Driver VBAT1 VCC VNEG BGND AGND/DGND *This product can be ordered using ordering part numbers Am79R79 or Le79R79. The Am79R79 ordering part number will be discontinued after 6/30/02, at which time the product will only be available using the Le79R79 ordering part number. Document ID# 080152 Date: Rev: I Version: Distribution: Public Document Mar 25, 2002 1
AMD
Advanced Micro Devices, Inc
U.S.A
コンピュータ業界、グラフィックス、家電業界向けマイクロプロセッサ・ソリューションの開発・製造・販売およびサポート
宅配業者の代金引換又は商品到着後一週間以内の銀行振込となります。