AK2548 データシートの表示（PDF） - Asahi Kasei Microdevices

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AK2548

7 channel E1 Transceiver

Asahi Kasei Microdevices 

ASAHI KASEI

[AK2548]

AK2548

7 channel E1 Transceiver

FEATURE

• 7ch E1 transceiver

• Jitter Tolerance: Compliant with ITU-T G.823, I.431

• Transmitter Pulse Shape: Compliant with ITU-T G.703

• Loss of Signal Detection: Compliant with ITU-T G.775

• Return loss: Compliant with ETS 300 166

• Selectable Signal Polarity

• Local/Remote Loopback

• Parallel/Serial Microprocessor Interface

• Single 3.3V±5% Operation

• Low Power Consumption

• Pin-to-pin compatible with AK2546(7 channel T1 transceiver) except serial interface

• Small Plastic Package 144pin LQFP

MCLK

CLKSEL

RESET

TEST1-4

P/S

BTS

RTIP1

RRING1

TTIP1

TRING1

CLKGEN

BLOCK DIAGRAM

CONTROL

TRANSCEIVER 1

LOS

RECOVER

SHAPER

R /W (WR)

AD7-AD0

AS(ALE)

DS(RD)

CS

SCLK

SDI

SDO

INT

LOS1

RCLK1

RPOS

RNEG1

TCLK1

TPOS

TNEG1

RTIP2-7

RRING2-7

TTIP2-7

TRING2-7

TRANSCEIVER 2-7

LOS2-7

RCLK2-7

RPOS2-7

RNEG2-7

TCLK2-7

TPOS2-7

TNEG2-7

7 Channel E1 Transceiver Block Diagram

C0028-E-00

1

1999/9

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