DS2148DK Maxim Integrated Products, DS2148DK Datasheet

DS2148DK

Manufacturer Part Number

DS2148DK

Description

KIT DESIGN LIU DS2148 3/5V T1/E1

Manufacturer

Maxim Integrated Products

Datasheets

1.DS2148T.pdf (73 pages)

2.DS2148DK.pdf (7 pages)

Specifications of DS2148DK

Main Purpose

Telecom, Line Interface Units (LIUs)

Utilized Ic / Part

DS2148

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Secondary Attributes

Embedded

Primary Attributes

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Current page: 1 of 7
Download datasheet (200Kb)

DALLAS

SEMICONDUCTOR

INTRODUCTION

The DS2148DK is an evaluation board for the DS2148TN which can be operated via hardware or software

control. The DS2148DK is designed to be used as a daughter card to the DST1E1DK, but can be

configured for stand-alone operation in hardware mode. The board is complete with the DS2148TN,

transformers, termination resistors, configuration switches, a RJ48 connector, and a 50-pin header to

connect to the DST1E1DK. The DS2148 can be used with a 3.3V or a 5V power supply. This design kit

comes standard with a 1:2 transformer on the transmit-side to allow 3.3V operation. In order to use a 5V

power supply, the transmit-side transformer should be replaced with a 1:1.36 transformer. The receive-side

uses a 1:1 transformer for both 3.3V and 5V operation. See the DS2148 data sheet for more details.

QUICK START INSTRUCTIONS

Connecting to the DST1E1DK:

If you do not wish to connect to the DST1E1DK, proceed directly to the Hardware Mode section. To install

the DS2148DK on the DST1E1DK, insert the DS2148 evaluation board into the 50 pin expansion header

labeled “J7” on the DST1E1DK so that the DS2148 is directly above the T1/E1 socket. If your DST1E1DK

is configured for 5 volt operation, set switch S1 on the DS2148DK away from the “3V” position and switch

SW2-1 to the “off” position. If your DST1E1DK is configured for 3.3 volt operation, set switch S1 to the

“3V” position, and switch SW2-1 to the “on” position. Connect power to the DST1E1DK, and connect the

serial cable as described in the DST1E1DK documentation.

Software Mode:

After connecting to the DST1E1DK, proceed to configure all switches on the DS2148DK noted in table 1,

as listed in the “Software Mode” column. Start the DST1E1 software using the DS2148 definition file

provided with the DS2148DK. For example:

Configure register CCR1 with an 80h, and CCR3 with a 90h. The device will begin transmitting a pseudo-

random bit sequence. . Upon external loopback, the RCL and PBEO LED’s will extinguish, denoting that

the device has found a carrier, and has successfully decoded the pseudo-random bit sequence. For more

advanced configurations, please refer to the DS2148 datasheet.

Hardware Mode:

Connect the J1 pins 1,3,5, and 7 to ground. Choose either 3.3 or 5.0 volt operating voltage.

Proceed to configure all switches on the DS2148DK noted in table 1, as listed in the “Hardware Mode”

column. On power-up, the device will begin transmitting a pseudo-random bit sequence in T1 mode. Upon

external loopback, the RCL and PBEO LED’s will extinguish, denoting that the device has found a carrier,

and has successfully decoded the pseudo-random bit sequence. For more advanced configurations, please

refer to the DS2148 datasheet.

“DST1E1.EXE COM1 DS2148.DEF”

3.3 volt supply:

5.0 volt supply:

1) Connect supply to J1 pins 41 and 43.

2) Set switch S1 to the “3V” position.

3) Set SW2-1 to the “on” position.

1) Connect to J1 pins 47 and 49.

2) Set switch S1 away from the “3V” position.

3) Set switch SW2-1 to the “off” position.

DS2148 Evaluation Kit

DS2148DK

Related parts for DS2148DK

DS2148DK Summary of contents

Page 1

... DST1E1DK so that the DS2148 is directly above the T1/E1 socket. If your DST1E1DK is configured for 5 volt operation, set switch S1 on the DS2148DK away from the “3V” position and switch SW2-1 to the “off” position. If your DST1E1DK is configured for 3.3 volt operation, set switch S1 to the “ ...

Page 2

... OFF DIP SWITCH SETTINGS Using the hardware interface feature of the DS2148, the DS2148DK will operate in full hardware mode. While in hardware mode, S1, S2, and SW1-SW3 are all used in initializing and controlling the DS2148. For SW1-SW3, the “off” position opens the switch while “on” closes the switch, grounding the attached device pin ...

Page 3

... RCL TEST RTIP RRING HRST* MCLK BPCLK BIS0 BIS1 TTIP VSS VDD TRING RPOS RNEG RCLK TPOS TNEG TCLK RT0 DS2148DK SWITCH NUMBER SW1-10 SW1-9 SW1-8 SW1-7 SW1-6 SW1-5 SW1-4 SW1-3 SW1-2 SW1-1 SW2-10 SW2-9 SW2-8 SW2-7 SW2-6 SW2-5 SW2-4 SW2-3 ...

Page 4

... OHM 1/8W 10% RESISTOR 2.048 MHz OSCILLATOR 2P TERMINAL BLOCK 470 OHM 1/8W 10% RESISTOR 51 OHM 1/8W 1% RESISTOR HEX INVERTER 50P DUAL ROW HEADER RJ48 CONNECTOR PCB MOUNT DPDT SWITCH DS2148 E1/T1/J1 LINE INTERFACE RED SURFACE MOUNT LED 1:1 TRANSFORMER 2:1 TRANSFORMER DS2148DK QUANTITY ...

Related keywords

ds214
ds2149
ds2148
ds21455
DS2148DK datasheet
DS2148DK data sheet
DS2148DK pdf datasheet
DS2148DK component
DS2148DK part
DS2148DK distributor
DS2148DK RoHS
DS2148DK datasheet download

DS2148DK Maxim Integrated Products, DS2148DK Datasheet

DS2148DK

Specifications of DS2148DK

Related parts for DS2148DK

DS2148DK Summary of contents

Page 1

Page 2

Page 3

Page 4

Page 5

Page 6

Page 7

Related keywords