Product Information

DS26522GN+

DS26522GN+ electronic component of Analog Devices

Datasheet
Telecom Interface ICs 2-Port E1/T1/J1 Transceiver

Manufacturer: Analog Devices
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



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Obsolete
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0 - Global Stock

MOQ : 1
Multiples : 1

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DS26522GN+
Analog Devices

1 : USD 48.2674
10 : USD 42.0235
25 : USD 36.4657
50 : USD 33.7236
1000 : USD 31.7321
N/A

Obsolete
     
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RoHS - XON
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19-5012 Rev 2 11/09 DEMO KIT AVAILABLE DS26522 Dual T1/E1/J1 Transceiver www.maxim-ic.com GENERAL DESCRIPTION FEATURES Complete T1, E1, or J1 Long-Haul/Short-Haul The DS26522 is a dual-channel framer and line Transceiver (LIU plus Framer) interface unit (LIU) combination for T1, E1, and J1 applications. Each channel is independently Internal Software-Selectable Transmit- and configurable, supporting both long-haul and short-haul Receive-Side Termination for 100 T1 Twisted lines. Pair, 110 J1 Twisted Pair, 120 E1 Twisted Pair, and 75 E1 Coaxial Applications APPLICATIONS Crystal-Less Jitter Attenuator can be Selected for Transmit or Receive Path Jitter Attenuator Routers Meets ETS CTR 12/13, ITU-T G.736, G.742, Channel Service Units (CSUs) G.823, and AT&T Pub 62411 Data Service Units (DSUs) External Master Clock can be Multiple of Muxes 2.048MHz or 1.544MHz for T1/J1 or E1 Switches Operation This Clock is Internally Adapted for T1 or E1 Usage in the Host Mode Channel Banks T1/E1 Test Equipment Receive-Signal Level Indication from -2.5dB to -36dB in T1 Mode and -2.5dB to -44dB in E1 Mode in Approximate 2.5dB Increments TYPICAL OPERATING CIRCUIT Transmit Open- and Short-Circuit Detection LIU LOS in Accordance with G.775, ETS 300 DS26522 T1/E1/J1 233, and T1.231 NETWORK Transmit Synchronizer Flexible Signaling Extraction and Insertion T1/J1/E1 BACKPLANE Using Either the System Interface or x2 Transceiver Microprocessor Port TDM Alarm Detection and Insertion T1 Framing Formats of D4, SLC-96, and ESF E1 G.704 and CRC-4 Multiframe Controlled by 8-Bit Parallel Port Interface or ORDERING INFORMATION Serial Peripheral Interface (SPI) PART TEMP RANGE PIN-PACKAGE Features Continued in Section 2. DS26522G 0 C to +70 C 144 CSBGA DS26522G+ 0 C to +70 C 144 CSBGA DS26522GN -40 C to +85 C 144 CSBGA DS26522GN+ -40 C to +85 C 144 CSBGA +Denotes a lead(Pb)-free/RoHS-compliant 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 errata, click here: www.maxim-ic.com/errata. 1 of 258 DS26522 Dual T1/E1/J1 Transceiver TABLE OF CONTENTS 1. DETAILED DESCRIPTION...............................................................................................9 1.1 MAJOR OPERATING MODES.............................................................................................................9 2. FEATURE HIGHLIGHTS ................................................................................................10 2.1 GENERAL......................................................................................................................................10 2.2 LINE INTERFACE............................................................................................................................10 2.3 CLOCK SYNTHESIZER ....................................................................................................................10 2.4 JITTER ATTENUATOR .....................................................................................................................10 2.5 FRAMER/FORMATTER....................................................................................................................10 2.6 SYSTEM INTERFACE ......................................................................................................................11 2.7 HDLC CONTROLLERS ...................................................................................................................12 2.8 TEST AND DIAGNOSTICS ................................................................................................................12 2.9 MICROCONTROLLER PARALLEL PORT.............................................................................................12 2.10 SLAVE SERIAL PERIPHERAL INTERFACE (SPI) FEATURES ............................................................12 3. APPLICATIONS..............................................................................................................13 4. SPECIFICATIONS COMPLIANCE .................................................................................14 5. ACRONYMS AND GLOSSARY......................................................................................16 6. BLOCK DIAGRAMS .......................................................................................................17 7. PIN DESCRIPTIONS ......................................................................................................19 7.1 PIN FUNCTIONAL DESCRIPTION......................................................................................................19 8. FUNCTIONAL DESCRIPTION........................................................................................25 8.1 MICROPROCESSOR INTERFACE......................................................................................................25 8.1.1 Parallel Port Mode................................................................................................................................ 25 8.1.2 SPI Serial Port Mode............................................................................................................................ 25 8.1.3 SPI Functional Timing Diagrams ......................................................................................................... 25 8.2 CLOCK STRUCTURE.......................................................................................................................28 8.2.1 Backplane Clock Generation ............................................................................................................... 28 8.3 RESETS AND POWER-DOWN MODES..............................................................................................29 8.4 INITIALIZATION AND CONFIGURATION..............................................................................................30 8.4.1 Example Device Initialization Sequence.............................................................................................. 30 8.5 GLOBAL RESOURCES ....................................................................................................................30 8.6 PORT RESOURCES ........................................................................................................................30 8.7 DEVICE INTERRUPTS .....................................................................................................................30 8.8 SYSTEM BACKPLANE INTERFACE ...................................................................................................32 8.8.1 Elastic Stores ....................................................................................................................................... 32 8.8.2 IBO Multiplexer..................................................................................................................................... 35 8.8.3 H.100 (CT Bus) Compatibility .............................................................................................................. 36 8.8.4 Receive and Transmit Channel Blocking Registers............................................................................. 37 8.8.5 Transmit Fractional Support (Gapped Clock Mode) ............................................................................ 37 8.8.6 Receive Fractional Support (Gapped Clock Mode) ............................................................................. 37 8.9 FRAMERS......................................................................................................................................38 8.9.1 T1 Framing........................................................................................................................................... 38 8.9.2 E1 Framing........................................................................................................................................... 41 8.9.3 T1 Transmit Synchronizer.................................................................................................................... 43 8.9.4 Signaling .............................................................................................................................................. 44 8.9.5 T1 Data Link......................................................................................................................................... 48 8.9.6 E1 Data Link......................................................................................................................................... 50 8.9.7 Maintenance and Alarms ..................................................................................................................... 51 2 of 258

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8542.39.23 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products Free

Electronic integrated circuits- Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
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