參數(shù)資料
型號(hào)： 935263842026
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 其它接口
英文描述： SPECIALTY INTERFACE CIRCUIT, UUC40
封裝： DIE-40
文件頁(yè)數(shù)： 2/35頁(yè)
文件大?。?/td> 208K
代理商： 935263842026
2000 Feb 22
10
Philips Semiconductors
Product specication
Gigabit Ethernet/Fibre Channel laser
drivers
TZA3041AHL; TZA3041BHL;
TZA3041U
Automatic laser shut-down and laser slow start
The laser modulation and bias currents can be rapidly
switched off when a HIGH level (CMOS) is applied to
pin ALS. This function allows the circuit to be shut-down in
the event of an optical system malfunction. A 25 k
pull-down resistor defaults pin ALS to the non active state
(see Fig.11).
When a LOW level is applied to pin ALS, the modulation
and bias currents slowly increase to the desired values at
the typical time constants of
τONE and τZERO, respectively.
This can be used to slow-start the laser.
Manual laser override
The automatic laser control function can be overridden by
connecting voltage sources to pins TZERO and TONE to
take direct control of the current sources for bias and
modulation respectively. The control voltages should
range from 1.4 to 3.4 V to swing the modulation current
over the range 1 to 60 mA and the bias current over the
range 1 to 90 mA. These current ranges are guaranteed.
Due to the tolerance range in the manufacturing process,
some devices may have higher current values than those
specified, as shown in Figs 12 and 13. Both figures show
that temperature changes cause a slight tilting of the linear
characteristic around an input voltage of 2.4 V.
Consequently, the manually controlled current level is
most insensitive to temperature variations at around this
value. Bias and modulation currents in excess of the
specified range are not supported and should be avoided.
Currents into or out of pins TZERO and TONE in excess of
10
A must be avoided to prevent damage to the circuit.
handbook, halfpage
MGS905
GND
40 pF
<1 nA
LINEAR VOLTAGE TO
CURRENT CONVERTER
TZERO, TONE
2.4 V
<1 nA
Fig.10 TZERO and TONE internal configuration.
handbook, halfpage
MGS911
25 k
VCC(R)
100
GND
ALS
100
Fig.11 ALS input.
相關(guān)PDF資料
PDF描述
935263881112 SPECIALTY TELECOM CIRCUIT, PDSO28
935263881118 SPECIALTY TELECOM CIRCUIT, PDSO28
935263971112 SPECIALTY TELECOM CIRCUIT, PDSO28
935263971118 SPECIALTY TELECOM CIRCUIT, PDSO28
08-040831 OUTLINE AUTO - TANGING MEGAPAC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
935264217557 制造商:NXP Semiconductors 功能描述:SUB ONLY IC
935267356112 制造商:NXP Semiconductors 功能描述:IC TEA1507PN
935268081112 制造商:NXP Semiconductors 功能描述:SUB ONLY IC
935268721125 制造商:NXP Semiconductors 功能描述:Buffer/Line Driver 1-CH Non-Inverting 3-ST CMOS 5-Pin TSSOP T/R
935269304128 制造商:ST-Ericsson 功能描述:IC AUDIO CODEC W/TCH SCRN 48LQFP
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*