參數資料
| 型號： | SY88903KC |
| 廠商： | Micrel Inc |
| 文件頁數： | 1/7頁 |
| 文件大小： | 0K |
| 描述： | IC AMP POST PECL 3.3V TTL 10MSOP |
| 標準包裝： | 100 |
| 類型： | 限幅后置放大器 |
| 應用： | 光纖學網絡 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 10-MSOP |
| 包裝： | 管件 |
1
SY88903
Micrel, Inc.
M9999-061907
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
■ Up to 1.25Gbps operation
■ Low noise
■ Chatter-Free LOS Generation
■ Open Collector TTL LOS Output
■ TTL /EN Input
■ Differential PECL inputs for data
■ Single power supply
■ Designed for use with SY88902 and SY88904
■ Available in a tiny 10-pin (3mm) MSOP
The SY88903 limiting post amplifier with its high gain
and wide bandwidth is ideal for use as a post amplifier in
fiber-optic receivers with data rates up to 1.25Gbps.
Signals as small as 5mVp-p can be amplified to drive
devices with PECL inputs. The SY88903
generates a
chatter-free Loss of Signal (LOS) open collector TTL
output.
The SY88903 incorporates a programmble level detect
function to identify when the input signal has been lost.
This information can be fed back to the /EN input of the
device to maintain stability under loss of signal conditions.
Using LOSLVL pin the sensitivity of the level detect can
be adjusted. The LOSLVL voltage can be set by
connecting a resistor divider between VCC and VREF,
Figure 3. Figure 4 shows the relationship between input
level sensitivity and the voltage set on LOSLVL. Figure 5
shows the relationship between input level sensitivity and
resistor divider ratio.
The LOS output is a TTL open collector output that
requires pull-up resistor for proper operation, Figure 1.
SY88903
LOS
+5V
2k
Figure 1. LOS Output with Desired Rise Time
FEATURES
1.25Gbps HIGH-SPEED
LIMITING POST AMPLIFIER
Not recommended for new designs
SY88903
APPLICATIONS
■ 1.25Gbps Gigabit Ethernet
■ 531Mbps and 1062Mbps Fibre Channel
■ 622Mbps SONET
■ Gigabit Interface Converter
BLOCK DIAGRAM
Limiting
Amplifier
DIN
Level
Detect
ECL
Buffer
Enable
DOUT
LOSLVL
LOS
GND
VCC
EN
VREF
Rev.: I
Amendment: /0
Issue Date: June 2007
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SY88903KC TR | 功能描述:IC AMP POST PECL 3.3V TTL 10MSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| SY88903V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5V/3.3V 1.25Gb/s High-Speed Limiting Post Amplifier |
| SY88903V_06 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5V/3.3V 1.25Gbps HIGH-SPEED LIMITING POST AMPLIFIER |
| SY88903V_07 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5V/3.3V 1.25Gbps HIGH-SPEED LIMITING POST AMPLIFIER |
| SY88903VKC | 功能描述:IC AMP POST PECL 3.3V TTL 10MSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
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