參數(shù)資料
型號: SY89841U
廠商: Micrel Semiconductor,Inc.
英文描述: Precision CML Runt Pulse Eliminator 2:1 Multiplexer
中文描述: 精密白血病短脈沖消除2:1多路復(fù)用器
文件頁數(shù): 4/16頁
文件大?。?/td> 668K
代理商: SY89841U
Micrel, Inc.
SY89842U
March 2005
M9999-030805
hbwhelp@micrel.com
or (408) 955-1690
4
Pin Description
Pin Number
Pin Name
Pin Function
4, 1,
16, 13
IN0, /IN0,
IN1, /IN1
Differential Inputs: These input pairs are the differential signal inputs to the
device. These inputs accept AC- or DC-coupled signals as small as 100mV
(200mV
pp
). Each pin of a pair internally terminates to a VT
pin through 50
.
Please refer to the “Input Interface Applications” section for more details.
2, 14
VREF-AC0
VREF-AC1
Reference Voltage: These outputs bias to V
CC
–1.2V. They are used for AC-
coupling inputs IN and /IN. Connect VREF-AC directly to the corresponding VT
pin. Bypass with 0.01μF low ESR capacitor to VCC. Maximum sink/source
current is ±1.5mA.
3, 15
VT0, VT1
Input Termination Center-Tap: Each side of the differential input pair terminates
to a VT pin. The VT0 and VT1 pins provide a center-tap to a termination network
for maximum interface flexibility. See the “Input Interface Applications” section
for more details.
5, 8, 12
VCC
Positive Power Supply: Bypass with 0.1μF||0.01μF low ESR capacitors as close
to the VCC pins as possible.
6, 7
Q, /Q
Differential Outputs: This differential CML output is a logic function of the IN0,
IN1, and SEL inputs. Please refer to the “Truth Table” below for details.
10
SEL
This single-ended TTL/CMOS-compatible input selects the inputs to the
multiplexer. Note that this input is internally connected to a 25k
pull-up resistor
and will default to logic HIGH state if left open.
9
GND,
Exposed Pad
Ground: Ground and exposed pad must be connected to the same ground plane.
11
CAP
Power-On Reset (POR) initialization capacitor. When using the multiplexer with
RPE capability, this pin is tied to a capacitor to VCC. The purpose is to ensure
the internal RPE logic starts up in a known state. See “Power-On Reset (POR)
Description” section for more details regarding capacitor selection. If this pin is
tied directly to VCC, the RPE function will be disabled and the multiplexer will
function as a normal multiplexer. The CAP pin should never be left open.
Truth Table
Inputs
IN1
Outputs
Q
IN0
/IN0
/IN1
SEL
/Q
0
1
X
X
0
0
1
1
0
X
X
0
1
0
X
X
0
1
1
0
1
X
X
1
0
1
1
0
相關(guān)PDF資料
PDF描述
SY89842U Precision CML Runt Pulse Eliminator 2:1 Multiplexer
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參數(shù)描述
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SY89841UMG TR 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Precision 2:1 LVDS MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SY89841UMGTR 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS Runt Pulse Eliminator 2:1 Multiplexer
SY89842U 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1
SY89842U_10 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1