CS61581 データシートの表示（PDF） - Cirrus Logic

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CS61581

T1/E1 Universal Line Interface

Cirrus Logic 

CS61581

TABLE OF CONTENTS

1. CHARACTERISTICS AND SPECIFICATIONS ..................................................................4

ABSOLUTE MAXIMUM RATINGS .....................................................................4

RECOMMENDED OPERATING CONDITIONS .................................................4

DIGITAL CHARACTERISTICS...........................................................................4

ANALOG SPECIFICATIONS..............................................................................5

T1 SWITCHING CHARACTERISTICS ...............................................................7

E1 SWITCHING CHARACTERISTICS...............................................................7

SWITCHING CHARACTERISTICS ....................................................................9

2. THEORY OF OPERATION ...............................................................................................10

2.1 Operating Mode Selection ........................................................................10

2.2 Master Clocks ...........................................................................................10

2.3 Transmitter ................................................................................................10

2.4 Transmit All Ones Select ..........................................................................12

2.4.1 Receiver ..........................................................................................13

2.4.2 Short Haul .......................................................................................13

2.4.3 Long Haul ........................................................................................13

2.4.4 Clock Recovery ...............................................................................13

2.4.5 Jitter Tolerance ...............................................................................14

2.5 Receiver Line Attenuation Indication ........................................................14

2.6 Jitter Attenuator ........................................................................................14

2.7 Receiver Loss of Signal ............................................................................14

2.8 Local Loopback ........................................................................................15

2.9 Remote Loopback .....................................................................................16

2.10 Network Loopback ..................................................................................16

2.11 Alarm Indication Signal ...........................................................................16

2.12 Serial Interface .......................................................................................16

2.21 Interrupts ................................................................................................23

3. QRSS TEST MODE ..........................................................................................................23

4. ARBITRARY WAVEFORM GENERATION ......................................................................24

4.1 Power On Reset / Reset ...........................................................................25

4.2 Power Supply ............................................................................................26

6. PIN DESCRIPTION ...........................................................................................................31

6.1 Power Supplies .........................................................................................32

6.2 Oscillator ...................................................................................................32

6.3 Control ......................................................................................................32

6.4 Status .......................................................................................................33

6.5 Serial Control Interface .............................................................................33

6.6 Data Input/Output .....................................................................................34

7. PACKAGE DIMENSIONS ................................................................................................36

Contacting Cirrus Logic Support

For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at:

http://www.cirrus.com/corporate/contacts/

Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product infor-

mation describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the information

contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without warranty of

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DS211PP8

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