參數(shù)資料
型號: IBM42S12SNYAA20
廠商: IBM Microeletronics
英文描述: 1250 MBd Gigabit Interface Converter(1250 MBd 吉位接口轉(zhuǎn)換器)
中文描述: 1250 MBd的千兆位接口轉(zhuǎn)換器(1250 MBd的吉位接口轉(zhuǎn)換器)
文件頁數(shù): 7/35頁
文件大?。?/td> 490K
代理商: IBM42S12SNYAA20
IBM42S10LNYAA20
IBM42S12LNYAA20
IBM42S12SNYAA20
IBM42S10LNNAA20
1063/1250MBd Gigabit Interface Converter
IBM42S10SNNAA20
IBM42S10SNYAA20
GBIC.02
04/27/99
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 7 of 34
Input Signal Definitions
Tx_DAT
A differential PECL serial data stream is presented to the GBIC for transmission onto the optical fiber by
intensity modulating a laser.
Tx_Disable
When high (logic one), the Tx_Disable signal turns
off the power to both the AC and DC laser driver cir-
cuits. It will also reset the Tx_Fault output under
some conditions (see Resetting a Fault (Tx_Fault)
on page 8).
When low (logic zero), the laser will be turned on
within 1ms if a hard fault is not detected. The timing
diagram below shows this line under normal operat-
ing conditions.
.
Timing of Tx_Disable function
t_off
<10
μ
s
t_on
<1ms
Transmitter
optical
signal
Tx_Disable
t_reset
>10
μ
s
Power On Initialization Timings
Tx_Disable Asserted
Tx_Disable De-asserted
t_init
<300ms
V
CC
> 4.75V
Tx_Fault
Tx_Disable
Optical Transmit
Signal
t_init
<300ms
V
SS
> 4.75V
Tx_Fault
Tx_Disable
Optical Transmit
Signal
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