DS3150GN
DS3150GN Datasheet
DS3150 3.3V T3 / E3 / STS-1 Line Interface
| Part | Datasheet |
|---|---|
DS3150GN |
DS3150GN (pdf) |
| Related Parts | Information |
|---|---|
DS3150G |
DS3150G |
| PDF Datasheet Preview |
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| PPRREELLIIMMIINNAARRY DS3150 3.3V T3 / E3 / STS-1 Line Interface • Integrated transmit and receive for T3, E3 and STS-1 line interfaces • Performs clock/data recovery and wave shaping • Requires no special external components other than 1:2 transformers • Interfaces to coaxial cable at lengths up to 380 meters T3 , 440 meters E3 , or 360 meters STS-1 • Adaptive receive equalizer handles from 0 dB to 15 dB of cable loss • Interfaces directly to a DSX monitor signal 20 dB flat loss • On-chip jitter attenuator can be placed either in the receive path or the transmit path • Built-in B3ZS and HDB3 coder/decoder • Bipolar and NRZ interfaces • Analog and digital loopbacks • Onboard 215 1 and 223 1 Pseudo Random Bit Sequence PRBS generator and detector • Transmit line driver monitor checks for a faulty transmitter or a shorted output • Complete T3 AIS generator ANSI T1.107 • Unframed all ones generator E3 AIS • Digital clock inversion capability • Tri-state line driver for low-power mode • Loss of signal detector ANSI T1.231-1999 and ITU G.775 • Pin compatible to the TDK 78P7200 and 78P2241 footprint • Low power 3.3V operation 5V tolerant I/O • Industrial temperature range -40°C to +85°C • Small packaging 28-lead PLCC, 48-lead TQFP and 49-lead CSBGA 7 x 7 mm FUNCTIONAL DIAGRAM Line In T3, E3, STS-1 DS3150 LIU RCLK RPOS RNEG Receive Clock and Data Line Out T3, E3, STS-1 TCLK TPOS TNEG Transmit Clock and Data ORDERING INFORMATION DS3150QN 28-lead PLCC -40°C to +85°C DS3150Q 28-lead PLCC 0°C to 70°C DS3150TN 48-lead TQFP -40°C to +85°C DS3150T 48-lead TQFP 0°C to 70°C DS3150GN 49-lead CSBGA -40°C to +85°C DS3150G 49-lead CSBGA 0°C to 70°C 1 of 22 110200 TABLE OF CONTENTS Section 1 Functional Description Section 2 Signal Section 3 AC Characteristics Section 4 Pin Assignments Section 5 Mechanical Dimensions Section 6: DS3150 2 11 15 17 19 22 SECTION 1 FUNCTIONAL DESCRIPTION The DS3150 performs all of the functions necessary for interfacing at the physical layer to T3, E3, and STS-1 lines. The device has independent receive and transmit paths. See Figure 1A. The receiver performs clock and data recovery from a B8ZS- or HDB3-code AMI signal and monitors for loss of the incoming signal. The recovered data optionally can be B8ZS/HDB3 decoded and output in NRZ format. The transmitter accepts either NRZ or bipolar data and drives standard pulse-shape waveforms onto 75 ohm coaxial cable. The receiver and transmitter sections will be discussed separately below. Table 1A lists the telecommunications standards that the DS3150 was designed to meet. DS3150 Block Diagram Figure 1A RMON MCLK LOS* Output Decode PRBS Digital Loss Of Signal Detector RX+ RX- DM* TX+ TX- 20dB Flat Gain Filter / Equalizer Analog Loss Of Signal Detect Clock & Data Recovery Analog Loopback squelch Driver Monitor B3ZS/HDB3 Decoder Remote Loopback Line Driver WaveShaping Loopback Control liu_bd Power Connections B3ZS/ HDB3 Encoder Test Functions Jitter Attenuator can be placed in either the receive path or the transmit path PRBS Detector Clock Invert RPOS/RNRZ RNEG RCLK Clock Invert AIS / PRBS Generation |
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