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MAX3861E PDF预览

MAX3861E

更新时间： 2024-11-12 22:55:23
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
13页 1554K
描述
2.7Gbps Post Amp with Automatic Gain Control

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MAX3861E 数据手册

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19-2342; Rev 0; 02/02  
2.7Gbps Post Amp with Automatic Gain Control  
General Description  
Features  
The MAX3861 is a low-power amplifier with automatic  
gain control (AGC), designed for WDM transmission  
systems employing optical amplifiers and requiring a  
vertical threshold adjustment after the post amp.  
Operating from a single 3.3V supply, this AGC amplifier  
linearly amplifies/attenuates the input signal while main-  
taining a fixed output-voltage swing at data rates up to  
2.7Gbps. Both the input and output are on-chip termi-  
nated to match 50Ω interfaces.  
o Single 3.3V Power Supply  
o 72mA Supply Current  
o 3.4GHz Small-Signal Bandwidth  
o 0.26mV  
Input-Referred Noise  
RMS  
o 6mV  
to 1200mV  
Input Range (46dB)  
P-P  
P-P  
o Input Signal Detect with Programmable Threshold  
o RSSI (Linear Up to 100mV  
This amplifier has a small-signal bandwidth of 3.4GHz  
)
P-P  
and an input-referred noise of 0.26mV  
. Over an  
RMS  
o Adjustable Output Amplitude  
input signal range of 6mV  
to 1200mV  
(46dB), the  
P-P  
P-P  
MAX3861 delivers a constant output amplitude that is  
adjustable from 400mV to 920mV . Variation in  
output swing is controlled within 0.2dB over a 16dB  
input range. The MAX3861 provides a received-signal-  
strength indicator (RSSI) that is linear, within 2.5%, for  
o 0.2dB Output Voltage Variation (Over 16dB Input  
P-P  
P-P  
Signal Variation)  
input signal levels up to 100mV  
and an input signal  
P-P  
detect (SD) with programmable threshold.  
Applications  
Ordering Information  
OC-48/STM-16 Transmission Systems  
PART  
MAX3861EGG  
MAX3861E/D  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
24 QFN*  
WDM Optical Receivers  
Long Reach Optical Receivers  
Continuous Rate Receivers  
Dice**  
*EP = Exposed Pad  
**Dice are designed to operate over a -40°C to +120°C junc-  
tion temperature (T ) range, but are tested and guaranteed at  
J
Typical Application Circuit  
T
A
= +25°C.  
C
CD  
0.1µF  
Pin Configuration  
TOP VIEW  
TH  
CD+ CD-  
24 23 22 21 20 19  
CG+  
CZ+  
C
CZ  
0.22µF  
C
CG  
2200pF  
CG-  
CZ-  
IN+  
1
2
3
4
5
6
18  
17  
SD  
50Ω  
OUT+  
50Ω  
MAXIM  
2.7Gbps  
TIA  
MAXIM  
MAX3873  
CDR  
V
CC  
V
CC  
0.1µF  
0.1µF  
MAX3861  
IN+  
IN-  
50Ω  
OUT-  
OSM  
50Ω  
16 OUT+  
IN-  
TH  
MAX3861  
15  
14  
13  
OUT-  
V
CC  
V
CC  
R
TH  
1.8kΩ  
VREF  
SC  
SD  
R
OSM  
EN  
OSM  
50kΩ  
RSSI  
EN  
R
RSSI  
50kΩ  
7
8
9
10 11 12  
CONTROLLED IMPEDANCE LINE  
QFN-EP  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...13

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