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DS26324GN Datasheet(PDF) 1 Page - Dallas Semiconductor |
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DS26324GN Datasheet(HTML) 1 Page - Dallas Semiconductor |
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1 / 120 page  1 of 120 REV: 053107 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. GENERAL DESCRIPTION The DS26324 is a 16-channel short-haul line interface unit (LIU) that supports E1/T1/J1 from a single 3.3V power supply. A wide variety of applications are supported through internal impedance matching. A single bill of material can support E1/T1/J1 that requires no external termination. Redundancy is supported through nonintrusive monitoring, optimal high-impedance modes and configurable 1:1 or 1+1 backup enhancements. An on-chip synthesizer generates the E1/T1/J1 clock rates by a single master clock input of various frequencies. Two clock output references are also offered. The device is offered in a 256-pin TE-CSBGA, the smallest package available for a 16-channel LIU. APPLICATIONS T1 Digital Cross-Connects ATM and Frame Relay Equipment Wireless Base Stations ISDN Primary Rate Interface E1/T1/J1 Multiplexer and Channel Banks E1/T1/J1 LAN/WAN Routers FUNCTIONAL DIAGRAM TNEG RCLK TPOS TCLK RPOS RNEG SOFTWARE CONTROL AND JTAG TRANSMITTER RECEIVER LOSS 1 16 RTIP RRING JTAG TTIP TRING FEATURES 16 E1, T1, or J1 Short-Haul Line Interface Units Independent E1, T1 or J1 Selections Fully Internal Impedance Match Requires No External Resistors Software-Selectable Transmit and Receive- Side Impedance Match Crystal-Less Jitter Attenuator Selectable Single-Rail and Dual-Rail Mode and AMI or HDB3/B8ZS Line Encoding and Decoding Detection and Generation of AIS Digital/Analog Loss of Signal Detection as per T1.231, G.775 and ETS 300 233 External Master Clock Can Be Multiple of 2.048MHz or 1.544MHz for T1/J1 or E1 Operation; This Clock Will Be Internally Adapted for T1 or E1 Usage Receiver Signal Level Indicator from -2.5dB to -20dB in 2.5dB Increments Two Built-In BERT Testers for Diagnostics 8-Bit Parallel Interface Support for Intel or Motorola Mode or a 4-Wire Serial Interface Transmit Short-Circuit Protection G.772 Nonintrusive Monitoring Receive Monitor Mode Handles Combinations of 14dB to 20dB of Resistive Attenuation Along with 12dB to 30dB of Cable Attenuation Specification Compliance to the Latest T1 and E1 Standards—ANSI T1.102, AT&T Pub 62411, T1.231, T1.403, ITU-T G.703, G.742, G.775, G.823, ETS 300 166, and ETS 300 233 Single 3.3V Supply with 5V Tolerant I/O JTAG Boundary Scan as Per IEEE 1149.1 ORDERING INFORMATION PART TEMP RANGE PIN-PACKAGE DS26324G 0°C to +70°C 256 TE-CSBGA DS26324GN -40°C to +85°C 256 TE-CSBGA DS26324 3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit www.maxim-ic.com |
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