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參數(shù)資料
| 型號： | MAX3744E |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Full-Duplex LVDM Transceiver 14-SOIC -40 to 85 |
| 中文描述： | 2.7Gbps SFP互阻放大器，接收信號強度指示 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 372K |
| 代理商： | MAX3744E |
M
2.7Gbps SFP Transimpedance
Amplifiers with RSSI
6
_______________________________________________________________________________________
Pin Description
Detailed Description
The MAX3744/MAX3745 are transimpedance amplifiers
designed for up to 2.7Gbps SFF/SFP transceiver mod-
ules. A functional diagram of the MAX3744/MAX3745 is
shown in Figure 1. The MAX3744/MAX3745 comprise a
transimpedance amplifier stage, a voltage amplifier
stage, an output buffer, and a direct-current (DC) feed-
back cancellation circuit. The MAX3744 also includes a
signal strength indicator (RSSI). To provide this signal in
a standard 4-pin TO header, the RSSI level is added to
the common mode of the differential data output pins.
Transimpedance Amplifier Stage
The signal current at the input flows into the summing
node of a high-gain amplifier. Shunt feedback through
the resistor R
F
converts this current to a voltage. In par-
allel with the feedback resistor are two back-to-back
Schottky diodes that clamp the output signal for large
input currents, as shown in Figure 2.
MAX3744/
MAX3745
BOND PAD
NAME
FUNCTION
1, 3
2, 7
4
V
CC
N.C.
IN
Supply Voltage
No Connection
TIA Input. Signal current from photodiode flows into this pin.
5
FILTER
Provides bias voltage for the photodiode through a 580
resistor to V
CC
. When grounded, this
pin disables the DC cancellation amplifier to allow a DC path from IN to OUT+ and OUT- for
testing.
6, 10
GND
Supply Ground
8
OUT-
Inverting Data Output. Current flowing into IN causes the voltage at OUT- to decrease. For the
MAX3744, the common mode between OUT+ and OUT- is proportional to the average input
current.
9
OUT+
Noninverting Data Output. Current flowing into IN causes the voltage at OUT+ to increase. For
the MAX3744, the common mode between OUT+ and OUT- is proportional to the average input
current.
TRANSIMPEDANCE
AMPLIFIER
OUT+
OUT-
50
50
V
CC
FILTER
IN
DC CANCELLATION
CIRCUIT
MAX3744
RSSI
TRANSIMPEDANCE
AMPLIFIER
OUT+
OUT-
50
50
V
CC
FILTER
IN
DC CANCELLATION
CIRCUIT
MAX3745
V
CC
R
F
R
F
Figure 1. Functional Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3745D | Full-Duplex LVDM Transceiver 14-TSSOP -40 to 85 |
| MAX3745E | Full-Duplex LVDM Transceiver 14-TSSOP -40 to 85 |
| MAX3781 | MAX3781 Evaluation Kit |
| MAX3781EVKIT | MAX3781 Evaluation Kit |
| MAX378EWE | 8-Channel Analog Multiplexer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3744E/D-B2W WAF | 制造商:Maxim Integrated Products 功能描述: |
| MAX3745E/D | 制造商:Maxim Integrated Products 功能描述:2.7G SFP TRANSIMPEDANCE AMP W/RSSI |
| MAX3746ETE | 功能描述:限幅放大器 622Mbps to 3.2Gbps 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 |
| MAX3746ETE-T | 功能描述:限幅放大器 622Mbps to 3.2Gbps 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 |
| MAX3746EVKIT | 功能描述:限幅放大器 Evaluation Kit for the MAX3746 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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