AK2504A Просмотр технического описания (PDF) - Asahi Kasei Microdevices

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AK2504A

DS3/STS-1/E3 Transceiver

Asahi Kasei Microdevices 

ASAHI KASEI

[AK2504A]

Others

No. Pin Name I/O

Function

43 E3

55 IREF

8 RLOOP

-

DS3/STS-1 or E3 select pin

High : DS3/STS-1

Low : E3

O

Current Reference Output

External resistance (4.7 kΩ±1%) should be connected to VSSA.

Remote Loop Back

I Active High input. RPDATA and RNDATA are transmitted from TTIP and

TRING using RCLK. Input High on both RLOOP and LLOOP are inhibited.

10 LLOOP

Local Loop Back

I Active High input. TPDATA,TNDATA and TCLK are looped back to RPDATA,

RNDATA and RCLK. Input High on both RLOOP and LLOOP are inhibited.

61 RESET

I

Active low RESET.

Pulled up to VDD with internal resister.

46 TEST1

Test Mode.

I

Should be connected to VSS.

TEST1=High : The part goes into Test mode.

TEST1=Low : The part goes into the Normal operation mode.

9 TEST2

I Should be connected to VSS.

27 TEST3

I Should be connected to VSS.

26 TEST4

O Output “Low” when TEST1=Low (Normal operation mode)

19 TEST5

I Should be connected to VSS.

58 TEST6

I Should be connected to VSS.

40 TEST7

O Should be open.

12 VDDD

- Power Supply for Digital. +3.3 volts.

13 VSSD

- Ground for Digital. 0 volts

11 VSSS

- Ground for Substrate. 0 volts

MS0143-E-01

-8-

2004/01

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