DEMO KIT AVAILABLE
DS3151/DS3152/DS3153/DS3154
Single/Dual/Triple/Quad
DS3/E3/STS-1 LIUs
www.maxim-ic.com
GENERAL DESCRIPTION
The DS3151 (single), DS3152 (dual), DS3153
(triple), and DS3154 (quad) line interface units (LIUs)
perform the functions necessary for interfacing at the
physical layer to DS3, E3, or STS-1 lines. Each LIU
has independent receive and transmit paths and a
built-in jitter attenuator.
FEATURES
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Single, Dual, Triple, or Quad Integrated
Transmitter, Receiver, and Jitter Attenuators for
DS3, E3, and STS-1
Each Port Independently Configurable
Perform Receive Clock/Data Recovery and
Transmit Waveshaping
Hardware or CPU Bus Configuration Options
Jitter Attenuators can be Placed in Either the
Receive or Transmit Paths
Interface to 75W Coaxial Cable at Lengths Up to
380m (DS3), 440m (E3), or 360m (STS-1)
Use 1:2 Transformers on Tx and Rx
Require Minimal External Components
Local and Remote Loopbacks
Low-Power 3.3V Operation (5V Tolerant I/O)
Industrial Temperature Range:
-40°C to +85°C
Small Package: 144-Pin, 13mm x 13mm
Thermally Enhanced CSBGA
IEEE 1149.1 JTAG Support
APPLICATIONS
SONET/SDH and PDH Multiplexers
Digital Cross-Connects
Access Concentrators
ATM and Frame Relay Equipment
Routers
PBXs
DSLAMs
CSUs/DSUs
FUNCTIONAL DIAGRAM
EACH LIU
LINE IN
DS3, E3,
OR STS-1
RXP
RXN
CLK
DATA
RECEIVE
CLOCK
AND DATA
CONTROL
STATUS
TRANSMIT
CLOCK
AND DATA
Features continued on page 5.
ORDERING INFORMATION
PART
DS3151
DS3151N
DS3152
DS3152N
DS3153
DS3153N
DS3154
DS3154N
LIUs
1
1
2
2
3
3
4
4
TEMP RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
Dallas
Semiconductor
DS315x
LINE OUT
DS3, E3,
OR STS-1
TXP
TXN
CLK
DATA
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.
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DS3151/DS3152/DS3153/DS3154 Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
TABLE OF CONTENTS
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4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
DETAILED DESCRIPTION.................................................................................................5
APPLICATIONS .................................................................................................................7
HARDWARE MODE AND CPU BUS MODE......................................................................8
PIN DESCRIPTIONS ........................................................................................................10
REGISTER DESCRIPTIONS ............................................................................................15
RECEIVER........................................................................................................................22
TRANSMITTER ................................................................................................................25
DIAGNOSTICS .................................................................................................................28
JITTER ATTENUATOR ....................................................................................................29
RESET LOGIC..................................................................................................................30
TRANSFORMERS............................................................................................................31
JTAG TEST ACCESS PORT AND BOUNDARY SCAN ..................................................32
ELECTRICAL CHARACTERISTICS ................................................................................37
PIN ASSIGNMENTS.........................................................................................................46
PACKAGE INFORMATION..............................................................................................59
THERMAL INFORMATION ..............................................................................................60
REVISION HISTORY ........................................................................................................60
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DS3151/DS3152/DS3153/DS3154 Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
LIST OF FIGURES
Figure 1-1. External Connections ............................................................................................................ 7
Figure 2-1. 4-Port Unchannelized DS3/E3 Card ...................................................................................... 7
Figure 3-1. Hardware Mode Block Diagram ............................................................................................. 8
Figure 3-2. CPU Bus Mode Block Diagram.............................................................................................. 9
Figure 5-1. Status Register Logic .......................................................................................................... 16
Figure 6-1. Receiver Jitter Tolerance..................................................................................................... 24
Figure 7-1. E3 Waveform Template....................................................................................................... 27
Figure 7-2. DS3 AIS Structure ............................................................................................................... 28
Figure 8-1. PRBS Output with Normal RCLK Operation ........................................................................ 29
Figure 8-2. PRBS Output with Inverted RCLK Operation....................................................................... 29
Figure 9-1. Jitter Attenuation/Jitter Transfer........................................................................................... 30
Figure 12-1. JTAG Block Diagram ......................................................................................................... 32
Figure 12-2. JTAG TAP Controller State Machine ................................................................................. 33
Figure 13-1. Transmitter Framer Interface Timing Diagram ................................................................... 38
Figure 13-2. Receiver Framer Interface Timing Diagram ....................................................................... 39
Figure 13-3. CPU Bus Timing Diagram (Nonmultiplexed) ...................................................................... 41
Figure 13-4. CPU Bus AC Timing Diagram (Multiplexed)....................................................................... 43
Figure 13-5. JTAG Timing Diagram ....................................................................................................... 45
Figure 14-1. DS3151 Hardware Mode Pin Assignment.......................................................................... 51
Figure 14-2. DS3151 CPU Bus Mode Pin Assignment .......................................................................... 52
Figure 14-3. DS3152 Hardware Mode Pin Assignment.......................................................................... 53
Figure 14-4. DS3152 CPU Bus Mode Pin Assignment .......................................................................... 54
Figure 14-5. DS3153 Hardware Mode Pin Assignment.......................................................................... 55
Figure 14-6. DS3153 CPU Bus Mode Pin Assignment .......................................................................... 56
Figure 14-7. DS3154 Hardware Mode Pin Assignment.......................................................................... 57
Figure 14-8. DS3154 CPU Bus Mode Pin Assignment .......................................................................... 58
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DS3151/DS3152/DS3153/DS3154 Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
LIST OF TABLES
Table 1-A. Applicable Telecommunications Standards ............................................................................ 6
Table 4-A. Active I/O Pins—Hardware and CPU Bus Modes................................................................. 10
Table 4-B. Transmitter Pin Descriptions ................................................................................................ 11
Table 4-C. Receiver Pin Descriptions .................................................................................................... 12
Table 4-D. Global Pin Descriptions........................................................................................................ 13
Table 4-E. JTAG and Test Pin Descriptions .......................................................................................... 14
Table 4-F. Transmitter Data Select Options........................................................................................... 14
Table 4-G. Receiver PRBS Pattern Select Options................................................................................ 14
Table 5-A. Register Map........................................................................................................................ 15
Table 7-A. DS3 Waveform Template ..................................................................................................... 26
Table 7-B. DS3 Waveform Test Parameters and Limits......................................................................... 26
Table 7-C. STS-1 Waveform Template.................................................................................................. 26
Table 7-D. STS-1 Waveform Test Parameters and Limits ..................................................................... 27
Table 7-E. E3 Waveform Test Parameters and Limits ........................................................................... 27
Table 11-A. Transformer Characteristics ............................................................................................... 31
Table 11-B. Recommended Transformers............................................................................................. 31
Table 12-A. JTAG Instruction Codes ..................................................................................................... 35
Table 12-B. JTAG ID Code.................................................................................................................... 35
Table 13-A. Recommended DC Operating Conditions........................................................................... 37
Table 13-B. DC Characteristics ............................................................................................................. 37
Table 13-C. Framer Interface Timing..................................................................................................... 38
Table 13-D. Receiver Input Characteristics—DS3 and STS-1 Modes.................................................... 39
Table 13-E. Receiver Input Characteristics—E3 Mode .......................................................................... 39
Table 13-F. Transmitter Output Characteristics—DS3 and STS-1 Modes ............................................. 40
Table 13-G. Transmitter Output Characteristics—E3 Mode ................................................................... 40
Table 13-H. CPU Bus Timing ................................................................................................................ 40
Table 13-I. JTAG Interface Timing......................................................................................................... 45
Table 14-A. Pin Assignments Sorted by Signal Name ........................................................................... 46
Table 14-B. Pin Assignments Sorted by Pin Number............................................................................. 48
Table 16-A. Thermal Properties, Natural Convection............................................................................. 60
Table 16-B. Theta-JA (q
JA
) vs. Airflow.................................................................................................... 60
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DS3151/DS3152/DS3153/DS3154 Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
FEATURES (continued)
Receiver
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AGC/equalizer block handles from 0 to 15dB of cable loss
Loss-of-lock (LOL) PLL status indication
Interfaces directly to a DSX monitor signal (~20dB flat loss) using built-in preamp
Digital and analog loss-of-signal (LOS) detectors (ANSI T1.231 and ITU G.775)
Optional B3ZS/HDB3 decoder
Line-code violation output pin and counter
Binary or bipolar framer interface
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On-board 2 - 1 and 2 - 1 PRBS detector
Clock inversion for glueless interfacing
Tri-state clock and data outputs support protection switching applications
Per-channel power-down control
Transmitter
Binary or bipolar framer interface
Gapped clock capable up to 51.84MHz
Wide 50
±20%
transmit clock duty cycle
Clock inversion for glueless interfacing
Optional B3ZS/HDB3 encoder
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On-board 2 - 1 and 2 - 1 PRBS generator
Complete DS3 AIS generator (ANSI T1.107)
Unframed all-ones generator (E3 AIS)
Line build-out (LBO) control
Tri-state line driver outputs support protection switching applications
Per-channel power-down control
Output driver monitor
1. DETAILED DESCRIPTION
The DS3151 (single), DS3152 (dual), DS3153 (triple), and DS3154 (quad) LIUs perform the functions necessary
for interfacing at the physical layer to DS3, E3, or STS-1 lines. Each LIU has independent receive and transmit
paths and a built-in jitter attenuator. The receiver performs clock and data recovery from a B3ZS- or HDB3-coded
alternate mark inversion (AMI) signal and monitors for loss of the incoming signal. The receiver optionally performs
B3ZS/HDB3 decoding and outputs the recovered data in either binary or bipolar format. The transmitter accepts
data in either binary or bipolar format, optionally performs B3ZS/HDB3 encoding, and drives standard pulse-shape
waveforms onto 75W coaxial cable. The jitter attenuator can be mapped into the receiver data path, mapped into
the transmitter data path, or be disabled. The DS315x LIUs conform to the telecommunications standards listed in
Table 1-A. Figure 1-1
shows the external components required for proper operation.
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