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參數(shù)資料
| 型號： | MAX3747 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual Multiplexed LVDM Repeater 16-SOIC -40 to 85 |
| 中文描述： | 155Mbps至3.2Gbps、低功耗SFP限幅放大器 |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 360K |
| 代理商： | MAX3747 |
Detailed Description
The limiting amplifiers consist of a multistage amplifier,
offset-correction circuitry, an output buffer, and loss-of-
signal detect circuitry (see the
Functional Diagram
).
Input Stage
The input stage is shown in Figure 3. It provides 50
termination to V
REF
for each input signal, IN+ and IN-.
The MAX3747/MAX3747A should be AC-coupled.
Multistage Amplifier
The high-bandwidth multistage amplifier provides
approximately 57dB of gain for the MAX3747 and 61dB
of gain for the MAX3747A.
Offset Correction Loop
The MAX3747/MAX3747A are susceptible to DC offsets
in the signal path because they have high gain. In com-
munication systems using NRZ data with a 50% duty
cycle, pulse-width distortion present in the signal or gen-
erated in the transimpedance amplifier appears as an
input offset and is reduced by the offset correction loop.
The offset correction loop sets a low-frequency cutoff of
3.2kHz.
M
155Mbps to 3.2Gbps, Low-Power SFP
Limiting Amplifiers
_______________________________________________________________________________________
7
Pin Description
MAX3747/
MAX3747A
MICREL
SY8893V
PIN
NAME
NAME
FUNCTION
1
DISABLE
EN
Disable Function Pin. The data outputs are held static when this pin is asserted high,
transistor-to-transistor logic (TTL).
2
3
4
IN+
IN-
V
REF
DIN
DIN
V
REF
Noninverted Input Signal, CML
Inverted Input Signal, CML
Reference Voltage for LOS Threshold Setting
5
TH
LOSLVL
Loss-of-Signal Level Set. A voltage on this pin created by a two-resistor divider sets
the threshold level. Connect one resistor from this pin to V
CC
and another from this pin
to V
REF
(see Figure 5).
6
GND
GND
Ground
7
LOS
LOS
Loss-of-Signal, Open Collector. LOS is high when the level of the input signal drops
below the preset threshold set by the TH input. LOS is deasserted low when the signal
level is above the threshold.
8
9
10
OUT-
OUT+
V
CC
DOUT
DOUT
V
CC
Inverted Data Output, CML
Noninverted Data Output, CML
Positive Power Supply
MAX3747
MAX3747A
50
50
V
REF
V
CC
ESD
STRUCTURES
Figure 3. CML Input Stage
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3747-MAX3747A | Dual Multiplexed LVDM Repeater 16-SOIC -40 to 85 |
| MAX3747A | Dual Multiplexed LVDM Repeater 16-SOIC -40 to 85 |
| MAX3747AEUB | Dual Multiplexed LVDM Repeater 16-TSSOP -40 to 85 |
| MAX3747EUB | Dual Multiplexed LVDM Repeater 16-TSSOP -40 to 85 |
| MAX3748ETE | Dual Multiplexed LVDM Repeater 16-TSSOP -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3747AE/DW-B1L WAF | 制造商:Maxim Integrated Products 功能描述: |
| MAX3747AEUB | 功能描述:限幅放大器 155-3.2Gbps SFP RoHS:否 制造商:Micrel 輸入電壓范圍（最大值）:3.6 V 工作電源電壓:3.3 V 電源電流:40 mA 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:MSOP-10 封裝:Tube |
| MAX3747AEUB+ | 功能描述:限幅放大器 155-3.2Gbps SFP RoHS:否 制造商:Micrel 輸入電壓范圍（最大值）:3.6 V 工作電源電壓:3.3 V 電源電流:40 mA 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:MSOP-10 封裝:Tube |
| MAX3747AEUB+C99 | 功能描述:限幅放大器 RoHS:否 制造商:Micrel 輸入電壓范圍（最大值）:3.6 V 工作電源電壓:3.3 V 電源電流:40 mA 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:MSOP-10 封裝:Tube |
| MAX3747AEUB+T | 功能描述:限幅放大器 155-3.2Gbps SFP RoHS:否 制造商:Micrel 輸入電壓范圍（最大值）:3.6 V 工作電源電壓:3.3 V 電源電流:40 mA 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:MSOP-10 封裝:Tube |
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