DS26524 Datasheet | Maxim Integrated

DESCRIPTION The DS26524 is a single-chip 4-port framer and line interface unit (LIU) bination for T1, E1, and J1 applications. Each channel is independently configurable, supporting both long-haul and short-haul lines. FEATURES Four plete T1, E1, or J1 Long-Haul/Short Haul Transceivers (LIU plus Framer) Independent T1, E1, or J1 Selections for Each Transceiver Internal Software-Selectable Transmit- and Receive-Side Termination for 100Ω T1 Twisted Pair, 110Ω J1 Twisted Pair, 120Ω E1 Twisted Pair, and 75Ω E1 Coaxial Applications Crystal-Less Jitter Attenuator can be Selected for Transmit or Receive Path; Jitter Attenuator Meets ETS CTR 12/13, ITU-T G.736, G.742, G.823, and AT&T Pub 62411 External Master Clock can be Multiple of 2.048MHz or 1.544MHz for T1/J1 or E1 Operation; This Clock is Internally Adapted for T1 or E1 Usage in the Host Mode Receive-Signal Level Indication from -2.5d B to -36d B in T1 Mode and -2.5d B to -44d B in E1 Mode in Approximate 2.5d B Increments Transmit Open- and Short-Circuit Detection LIU LOS in Accordance with G.775, ETS 300 233, and T1.231 APPLICATIONS Routers Channel Service Units (CSUs) Data Service Units (DSUs) Muxes Switches Channel Banks T1/E1 Test Equipment TYPICAL OPERATING CIRCUIT T1/E1/J1 NETWORK T1/J1/E1 Transceiver x4 BACKPLANE Transmit Synchronizer Flexible Signaling Extraction and Insertion Using Either the System Interface or Microprocessor Port Alarm Detection and Insertion T1 Framing Formats of D4, SLC-96, and ESF ORDERING INFORMATION PART DS26524GN DS26524GN+ TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 256 TE-CSBGA 256 TE-CSBGA J1 Support E1 G.704 and CRC-4 Multiframe T1-to-E1 Conversion Features Continued in Section 2. + Denotes lead-free/Ro HS pliant device. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device...