Product Details
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GENERAL DESCRIPTION The DS26334 is a 16-channel short/long-haul line interface unit (LIU) that supports E1/T1/J1 from a single 3.3V power supply. 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. FEATURES ■ 16 E1, T1, or J1 Short/Long-Haul Line Interface Units ■ Independent E1, T1 or J1 Selections ■ Fully Internal Impedance Match Requires No External Resistors ■ Software-Selectable Transmit and ReceiveSide 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 -38dB in T1 Mode and -3dB to -43dB in E1 Mode 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 30dB 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 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 |
Product Description
| TYPE | DESCRIPTION |
| ANSC PART# | ANSC- DS26C31TM |
| Category | Integrated Circuits (ICs) |
| Interface | |
| Drivers, Receivers, Transceivers | |
| Manufacturer | Original |
| Series | - |
| Packaging | Tube |
| Part Status | Obsolete |
| Type | Receiver |
| Protocol | RS422, RS423 |
| Number of Drivers/Receivers | 0/4 |
| Duplex | - |
| Receiver Hysteresis | 60 mV |
| Data Rate | - |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SOIC |
| Base Product Number | DS26C32 |
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