HOME＞在庫検索＞在庫情報
AM79R79-1JC
Am79R79 Ringing Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS On-chip ringing with on-chip ring-trip detector Low standby state power Battery operation: — VBAT1: –40.5 V to –75 V — VBAT2: –19 V to VBAT1 On-chip battery switching and feed selection On-hook transmission Two-wire impedance set by single external impedance Programmable constant-current feed Ideal for ISDN terminal adaptor and fixed radio access applications Ideal for short-loop applications Two on-chip relay drivers and snubber circuits (32 PLCC) Programmable Open Circuit voltage Programmable loop-detect threshold Current gain = 1000 Ground-key detector Tip Open state for ground-start lines Polarity reversal option available Internal VEE regulator (no external –5 V power supply required) 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) Power-Feed Controller RINGIN RDC RDCR VBAT2 RSGL RSGH B2EN Switch Driver VBAT1 VCC VNEG BGND AGND/DGND Publication# 080152 Rev: H Amendment: /0 Issue Date: August 2001
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。
