hbwhelp@micrel.com or (408) 955-1690 Signal Cross" />
參數(shù)資料
型號(hào): SY89854UMY TR
廠商: Micrel Inc
文件頁(yè)數(shù): 11/11頁(yè)
文件大?。?/td> 0K
描述: IC CLK BUFFER TRANSLA 1:4 16-MLF
標(biāo)準(zhǔn)包裝: 1,000
系列: Precision Edge®
類型: 扇出緩沖器(分配),變換器
電路數(shù): 1
比率 - 輸入:輸出: 1:4
差分 - 輸入:輸出: 是/是
輸入: CML,LVDS,PECL
輸出: LVPECL
頻率 - 最大: 3.5GHz
電源電壓: 2.375 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-VFQFN 裸露焊盤,16-MLF?
供應(yīng)商設(shè)備封裝: 16-MLF?(3x3)
包裝: 帶卷 (TR)
其它名稱: SY89854UMYTR
SY89854UMYTR-ND
Micrel, Inc.
SY88353BL
February 2007
9
M9999-021707-B
hbwhelp@micrel.com or (408) 955-1690
Signal Crossing Adjustment
In order to optimize the decision threshold level and
hence, the BER of the optical link, the SY88353L
provides two pins for output signal crossing control. The
signal crossing can be adjusted by connecting VTHN
(pin 5) to VTHREF (pin 6), and applying a DC signal at
VTHP (pin 16). By varying the DC signal at VTHP from
– 0V to 2.5V – while the input signal to the post amplifier
is less than 100mVpp, the crossing of the output signal
will change from 20% to 80% reaching 50% when VTHP
= VTHREF = 1.25V. If the crossing control function is
not needed, VTHN and VTHP must be connected to
ground.
The zero crossing vs. VTHP plot, shown on page 6,
shows how the crossing of the output signal changes
with the voltage applied at VTHP (pin 16) while VTHN
(pin 5) is tied to VTHREF (pin 6) for different input signal
levels.
Figure 1. VIS and VID Definition
Figure 2. Input Structure
Figure 3. Output Structure
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