HC55185EVAL1 Intersil, HC55185EVAL1 Datasheet

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HC55185EVAL1

Manufacturer Part Number
HC55185EVAL1
Description
Manufacturer
Intersil
Datasheet
Introduction
evaluation board design consists of the HC55185 device
application circuit, a single +5V CODEC for line circuit
evaluations and on board logic for stand alone operation. The
evaluation boards have been designed to support back to
back operation, providing further insight to the complete signal
path and solution.
The transient behavior of the SLIC in response to mode
changes has been significantly improved with the HC55185
design. The benefit to the application is reduction or more
likely elimination of DET glitches when off hook events
occur. In addition to internal circuit modifications, the change
of the C
Please reference the HC55185 data sheet for detailed
information regarding this feature.
Voltage ratings for external components have been selected
based on 100V device operation, therefore compatibility to
lower voltage versions is guaranteed.
FB
value contributes to this functional improvement.
The HC5518XEVAL evaluation
board provides a complete
evaluation system for the HC55185
family of ringing SLICs. The
TM
4-1
1-888-INTERSIL or 321-724-7143
Application Note
HC5518XEVAL Evaluation Board User’s Guide
FIGURE 1. EVALUATION BOARD SILK SCREEN
|
Intersil and Design is a trademark of Intersil Corporation.
Getting Started
Your evaluation kit should contain this user’s guide and the
following hardware.
The evaluation board should have the same appearance as
the silk screen shown in Figure 1.
Applying Power to the Evaluation Board
Here are a few safeguards with power sequencing until you
are accustomed to using the high voltages required by the
devices.
1. One HC5518XEVAL evaluation board.
2. At least one HC55185 device sample, already in board.
3. One PLCC extraction tool.
4. One cable assembly with multi colored conductors.
5. One cable assembly with solid white conductors.
1. Limit the current on all power supplies to 100mA.
2. Turn on the power supplies after the power cables are
attached to the evaluation boards.
September 2000
RSLIC18™ is a trademark of Intersil Corporation.
|
Copyright © Intersil Corporation 2000
AN9814.2

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HC55185EVAL1 Summary of contents

Page 1

... Limit the current on all power supplies to 100mA. 2. Turn on the power supplies after the power cables are attached to the evaluation boards. FIGURE 1. EVALUATION BOARD SILK SCREEN | Intersil and Design is a trademark of Intersil Corporation. AN9814.2 RSLIC18™ trademark of Intersil Corporation. | Copyright © Intersil Corporation 2000 ...

Page 2

Evaluation Board Functional Description J4 J3 JP1 J2 J1 Evaluation Board Jumper Definitions JUMPER JP1 Connects SW- directly to the device Ring terminal of device. Used in conjunction with external load D JP2 Connects SW+ through test load to the ...

Page 3

Test Points Each connector interface to the evaluation board has a test point. All test points are DC coupled and should be guarded against ground shorts. High impedance test inputs, such as oscilloscopes or DVMs, should be used to monitor ...

Page 4

Stand Alone Configuration Description The stand alone configuration supports any measurement of the HC55185 device. With all the jumper locations open, the device is totally isolated from all other active circuitry on the evaluation board. All ...

Page 5

Stand Alone Configuration Typical Measurements Supply Currents (milli amps Hook OPERATING MODE F2, F1, F0 Low Power Standby Forward Active Unused Reverse Active Ringing 1, 0, ...

Page 6

Ringing Configuration Description The ringing configuration supports full evaluation of the ringing capability of the HC55185 device. The evaluation board design does not include a 20Hz digital code generator, therefore, all ringing waveforms will ...

Page 7

Digital Loop Back Configuration FIGURE 6. DIGITAL LOOP BACK CONNECTORS AND JUMPERS Description The digital loop back configuration verifies the interface and operation of the HC55185 device and the CODEC. This configuration provides a ...

Page 8

PCM4 Configuration Description The PCM4 configuration verifies the AC transmission of the HC55185 and CODEC. Any piece of test equipment capable of PCM testing with digital and analog interfaces can be used in this ...

Page 9

PCM4 Configuration Typical Measurements MODE A 33 VAR. GAIN/FRE. TX: +1 RESULT +0.0 dB -1.0 -1.5 200 1000 2000 TX +0.00 dBm0 201Hz FIGURE 9. DIGITAL TO ANALOG GAIN vs FREQUENCY MODE A 43 ...

Page 10

Back to Back Configuration MASTER SECONDARY POWER CABLE FIGURE 15. BACK TO BACK CONNECTORS AND JUMPERS Description The back to back configuration connects two evaluation boards together at the PCM interface. The PCM output ...

Page 11

Basic Application Circuit Component List COMPONENT VALUE TOLERANCE U1 - Ringing SLIC HC55185 R 20k RT R 49. 71. 66. 17. 0. ...

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Evaluation Board Schematic V + +5V VBL CPS3 CPS4 ...

Page 13

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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