Cirrus-logic CDB61584A Instrukcja Użytkownika

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Copyright
Cirrus Logic, Inc. 1998
(All Rights Reserved)
CDB61584A
Product Databook
Dual Line
Interface Unit
FEATURES
Socketed CS61584A Dual Line Interface
All Required Components for CS61584A
Evaluation
Locations to Evaluate Protection Circuitry
LED Status Indications for Alarm Conditions
Support for Hardware and Host Modes
DESCRIPTION
The evaluation board includes a socketed CS61584A
dual line interface device and all support components
necessary for evaluation. The board is powered by an
external +5 Volt supply.
The board may be configured for 100 twisted-pair T1,
75 coax E1, or 120 twisted-pair E1 operation. Bind-
ing posts and bantam jacks are provided for line
interface connections. Several BNC connectors provide
clock and data I/O at the system interface. Reference
timing may be derived from a quartz crystal, crystal os-
cillator, or an external reference clock. Four LED
indicators monitor device alarm conditions.
ORDERING INFORMATION:
CDB61584A
Oscillator
Circuit
TTIP1
TRING1
RTIP1
RRING1
TTIP2
TRING2
RTIP2
RRING2
CHANNEL1
CHANNEL2
5V+0V
TCLK1
TPOS1
(TDATA1)
TNEG1
RCLK1
RPOS1
(RDATA1)
RNEG1
(BPV1)
CHANNEL1
RESET
CIRCUIT
V+
TCLK2
TPOS2
(TDATA2)
TNEG2
RCLK2
RPOS2
(RDATA2)
RNEG2
(BPV2)
CHANNEL2
HardwareControl
andModeCircuit
LEDStatus
Indicators
SerialInterface
ControlCircuit
CS61584A
XTL
REFCLK
DS261DB2 MAR ‘98
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Strona 1 - CDB61584A

Copyright  Cirrus Logic, Inc. 1998(All Rights Reserved)CDB61584AProduct DatabookDual Line Interface UnitFEATURES Socketed CS61584A Dual Line Interfac

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60 DS261DB2CDB61584ADual Line Interface UnitVA+VD+J22J23V+GNDC16L1VD+Prototyping AreaZ147µFFigure 5. Common Circuitry

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• Notes •

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

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52 DS261DB2CDB61584ADual Line Interface UnitPOWER SUPPLYAs shown on the evaluation board schematic inFigures 1-5, power is supplied to the board from

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DS261DB2 53CDB61584ADual Line Interface Unitprovided when headers J7 and J13 are jumpered inthe "AIS" position. The AIS1 and AIS2 LED indi-c

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54 DS261DB2CDB61584ADual Line Interface UnitREFERENCE CLOCKThe CDB61584A requires a T1 or E1 referenceclock for operation. This clock may operate at e

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DS261DB2 55CDB61584ADual Line Interface UnitEVALUATION HINTS1) The orientation of pin 1 for the CS61584A is la-beled "1" on the left side of

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56 DS261DB2CDB61584ADual Line Interface UnitRCLK1RPOS1RNEG1TCLK1TPOS1TNEG1LOS1J-TDODGND2J-TDITTIP1TV+1TGND1TRING1PD1ATTEN0RTIP1RRING1101112131415RCLK1

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DS261DB2 57CDB61584ADual Line Interface UnitRCLK2RPOS2RNEG2TCLK2TPOS2TNEG2LOS2CON32J-TCKJ-TMSTTIP2TV+2TGND2TRING2PD2CLKERTIP2RRING2U7CS61584ACHANNEL 2

Strona 11 - • Notes •

58 DS261DB2CDB61584ADual Line Interface Unit2468101214161820222426ATTEN1RLOOP1RLOOP2LLOOPTAOS1TAOS2CON01DGND1DV+DGND3CON02CON11CON12CON21CON22CON31U7C

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DS261DB2 59CDB61584ADual Line Interface UnitRV+1RGND1MODEBGREFAGNDAV+RESETREFCLKXTALOUT1XCLKRGND2RV+2U7CS61584ATIMING CIRCUITRY2940C5.1µFVD+R2347KR104

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