參數資料
| 型號： | SY89838UMG TR |
| 廠商： | Micrel Inc |
| 文件頁數： | 1/9頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK BUFF MUX 2:8 2GHZ 32-MLF |
| 標準包裝： | 1,000 |
| 系列： | Precision Edge® |
| 類型： | 扇出緩沖器（分配），多路復用器 |
| 電路數： | 1 |
| 比率 - 輸入:輸出： | 2:8 |
| 差分 - 輸入:輸出： | 是/是 |
| 輸入： | CML，LVDS，LVPECL |
| 輸出： | LVDS |
| 頻率 - 最大： | 2GHz |
| 電源電壓： | 2.375 V ~ 2.625 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，32-MLF? |
| 供應商設備封裝： | 32-MLF?（5x5） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | SY89838UMGTR SY89838UMGTR-ND |
SY89838U
Precision 1:8 LVDS Clock Fanout Buffer
with 2:1 Runt Pulse Eliminator Input MUX
May 2008
M9999-051308-D
hbwhelp@micrel.com or (408) 955-1690
Precision Edge is a registered trademark of Micrel, Inc
General Description
The SY89838U is a low jitter, low skew, high-speed
1:8 fanout buffer with a unique, 2:1 differential input
multiplexer (MUX) optimized for redundant source
switchover applications. Unlike standard multiplexers,
the SY89838U unique 2:1 Runt Pulse Eliminator
(RPE) MUX prevents any short cycles or “runt” pulses
during switchover. In addition, a unique fail-safe input
protection prevents metastable conditions when the
selected input clock fails to a DC voltage (voltage
between the pins of the differential input drops below
200mV). The SY89838U distributes clock frequencies
from 1kHz to 1.5GHz, guaranteed, over temperature
and voltage.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that allows customers to
interface to any differential signal (AC- or DC-coupled)
as small as 200mV (400MvPP) without any level
shifting or termination resistor networks in the signal
path. The outputs are 350mV compatible LVDS with
fast rise/fall times guaranteed to be less than 150ps.
The SY89838U operates from a 2.5V ±5% supply and
is guaranteed over the full industrial temperature range
of –40°C to +85°C. For applications that require
800mV LVPECL outputs, consider the SY89837U. The
SY89838U is part of Micrel’s high-speed, Precision
Edge product line.
All support documentation can be found on Micrel’s
web site at: www.micrel.com.
Precision Edge
Features
Selects between two clocks, and provides 8
precision, low skew LVDS output copies
2:1 MUX input provides a glitch-free, stable LVDS
output
Guaranteed AC performance over temperature and
supply voltage:
– Wide operating frequency: 1kHz to >1.5GHz
– <150ps tr/tf
– <40ps output-to-output skew
Unique patent-pending input isolation design
minimizes crosstalk
Fail-safe input prevents oscillation
Ultra-low jitter design:
– 150fs RMS phase jitter
– <0.7psRMS MUX crosstalk induced jitter
Unique patent-pending input termination and VT pin
accepts DC- and AC-coupled inputs (CML, PECL,
LVDS)
350mV LVDS output swing
Power supply 2.5V +5%
–40°C to +85°C industrial temperature range
Available in 32-pin (5mm x 5mm) QFN package
Applications
Redundant clock switchover
Failsafe clock protection
Markets
LAN/WAN
Enterprise Servers
ATE
Test and Measurements
相關PDF資料 |
PDF描述 |
|---|---|
| SY89840UMG TR | IC MUX 2:1 LVPECL RPE/FSI 16MLF |
| SY89841UMG TR | IC MUX 2:1 LVDS RPE 16-MLF |
| SY89842UMG TR | IC MUX CML RPE 2:1 PREC 16-MLF |
| SY89843UMG TR | IC MUX CML RPE 2:1 PREC 24-MLF |
| SY89844UMG TR | IC MUX LVDS RPE 2:1 PREC 24-MLF |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SY89840U | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL Runt Pulse Eliminator 2:1 |
| SY89840U_10 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL Runt Pulse Eliminator 2:1 |
| SY89840UMG | 功能描述:編碼器、解碼器、復用器和解復用器 Precision 2:1 LVPECL MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| SY89840UMG TR | 功能描述:編碼器、解碼器、復用器和解復用器 Precision 2:1 LVPECL MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| SY89840UMGTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL Runt Pulse Eliminator 2:1 Multiplexer |
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