參數(shù)資料
型號： MAX3747EUB
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 數(shù)字傳輸電路
英文描述： Dual Multiplexed LVDM Repeater 16-TSSOP -40 to 85
中文描述： ATM/SONET/SDH SUPPORT CIRCUIT, PDSO10
封裝： 3 MM, MICRO MAX PACKAGE-10
文件頁數(shù)： 9/10頁
文件大?。?/td> 360K
代理商： MAX3747EUB
M
155Mbps to 3.2Gbps, Low-Power SFP
Limiting Amplifiers
_______________________________________________________________________________________
9
Loss-of-Signal Indicator
The MAX3747/MAX3747A are equipped with LOS cir-
cuitry that indicates when the input signal is below a pro-
grammable threshold, set by a voltage on the TH pin
(see the
Typical Operating Characteristics
). The voltage
on the TH pin is set by two resistors, one connecting
from the TH pin to V
CC
and the other connecting from TH
to V
REF
(Figure 5). An RMS power detector compares
the input signal amplitude with this threshold and feeds
the signal-detect information to the LOS output, which
is open collector. To prevent LOS chatter in the region of
the programmed threshold, approximately 2dB of hys-
teresis is built into the LOS assert/deassert function.
Once asserted, LOS is not deasserted until the input
amplitude rises to the required level. Figure 6 shows the
LOS output circuit.
Applications Information
Program the LOS Assert Threshold
Program the LOS assert threshold according to Figure
5. The combination of R1 and R2 should be greater
than or equal to 5k
, see the Assert/Deassert vs. V
TH
graph in the
Typical Operating Characteristics
.
Select the Coupling Capacitor
When AC-coupling is desired, coupling capacitors C
IN
and C
OUT
should be selected to minimize the receiv-
er’s deterministic jitter. Jitter is decreased as the input
low-frequency cutoff (f
IN
) is decreased:
f
IN
= 1 / [2
π
(50)(C
IN
)]
For all applications, the recommended value for C
IN
and
C
OUT
is 0.1μF, which provides f
IN
equal to 32kHz. Refer
to Application Note HFAN-1.1:
Choosing AC-Coupling
Capacitors
on the Maxim website (www.maxim-ic.com)
.
EMI Performance
The MAX3747/MAX3747A have been designed for bet-
ter EMI performance. To help reduce EMI, special care
has been taken to produce symmetrical signal outputs.
Chip Information
TRANSISTOR COUNT: 443
PROCESS: SiGe Bipolar
TH
V
REF
R2
R1
V
CC
V
TH
= (R1 x (V
REF
- V
CC
)) / (R2 + R1)
V
TH
IS V
CC
REFERENCED
R1 + R2
≥
5k
Figure 5. MAX3747/MAX3747A LOS Threshold Circuit
ESD
STRUCTURE
V
CC
LOS
Figure 6. MAX3747/MAX3747A LOS Output Circuit
1
2
3
4
5
10
9
8
7
6
V
CC
OUT+
OUT-
LOS
V
REF
IN-
IN+
DISABLE
MAX3747
MAX3747A
μ
MAX
TOP VIEW
GND
TH
Pin Configuration
相關(guān)PDF資料
PDF描述
MAX3748ETE Dual Multiplexed LVDM Repeater 16-TSSOP -40 to 85
MAX3748AETE Circular Connector; No. of Contacts:53; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:23; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:23-53 RoHS Compliant: No
MAX3750 Quad LVDM Transmitter 16-SOIC -40 to 85
MAX3751CEE +3.3V, 2.125Gbps/1.0625Gbps Fibre Channel Port Bypass ICs
MAX3750CEE +3.3V, 2.125Gbps/1.0625Gbps Fibre Channel Port Bypass ICs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3747EUB+ 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
MAX3747EUB+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
MAX3747EUB-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
MAX3747EVKIT 功能描述:放大器 IC 開發(fā)工具 RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
MAX3748AEGE 制造商:Maxim Integrated Products 功能描述:COMPACT 155MBPS TO 3.2GBPS LIMITING AMPLIFIER - Rail/Tube
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