參數(shù)資料
型號: MAX3747AEUB+T
廠商: Maxim Integrated Products
文件頁數(shù): 9/11頁
文件大?。?/td> 0K
描述: IC AMP LIMITING SFP 10-UMAX
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
類型: 限幅放大器
應用: 數(shù)據(jù)量化器,光學接收器
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(shè)備封裝: 10-µMAX
包裝: 帶卷 (TR)
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
ter-
mination to VREF for each input signal, IN+ and IN-. The
MAX3747A/MAX3747B should be AC-coupled.
Multistage Amplifier
The high-bandwidth multistage amplifier provides approx-
imately 61dB of gain for the MAX3747A/MAX3747B.
Offset Correction Loop
The MAX3747A/MAX3747B 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 gener-
ated 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.
MAX3747A/MAX3747B
155Mbps to 3.2Gbps, Low-Power SFP
Limiting Amplifiers
7
Maxim Integrated
Pin Description
NAME
PIN
MAX3747A/
MAX3747B
MICREL
SY8893V
FUNCTION
1
DISABLE
EN
Disable Function Pin. The data outputs are held static when this pin is asserted high,
transistor-to-transistor logic (TTL). The data outputs are enabled when this pin is held
low. LOS functions remain active when outputs are disabled. For normal operation
connect to GND.
2
IN+
DIN
Noninverted Input Signal
3
IN-
DIN
Inverted Input Signal
4VREF
VREF
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 VCC and another from this pin
to VREF (see Figure 5).
6
GND
Ground
7
LOS
Loss of Signal. Open collector for the MAX3747A; internal 100k pullup to VCC for the
MAX3747B. 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
OUT-
DOUT
Inverted Data Output, CML
9
OUT+
DOUT
Noninverted Data Output, CML
10
VCC
Positive Power Supply
MAX3747A
MAX3747B
50
50
VREF
VCC
ESD
STRUCTURES
Figure 3. Differential Input Stage
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MAX3747AEVKIT 功能描述:限幅放大器 Evaluation Kit for the MAX3747 MAX3747A 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
MAX3747AEVKIT+ 功能描述:限幅放大器 Evaluation Kit for MAX3747A 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
MAX3747BEUB+ 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
MAX3747BEUB+CBK 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
MAX3747BEUB+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