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參數(shù)資料
| 型號(hào)： | MAX3762EEP+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 2/12頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP LIMITING 622MBPS 20-QSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 限幅放大器 |
| 應(yīng)用： | 光纖學(xué)網(wǎng)絡(luò) |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-QSOP |
| 包裝： | 帶卷 (TR) |
MAX3761/MAX3762
For LOS assert at -35dBm, select R1 = 100k
Ω and R2 =
22k
Ω, which programs the LOS assert at input 3mV.
With this selection, LOS assert time will typically be less
than 85μs.
Fibre Channel Component Selection
In Fibre Channel applications, the desired LOS assert
time is typically 25μs maximum, and data-dependent
jitter is reduced by 8B10B coding techniques. The fol-
lowing are recommended in a Fibre Channel system
where preamp gain is 2000V/W, LOS assert is set for
-24dBm (13mV MAX3761/MAX3762 input), and the
maximum input to the MAX3761/MAX3762 is 1Vp-p:
CIN = 3.3nF (to provide LOS assert in 25μs)
CAZ = 82pF (to provide fOC = 1/10 fC for stability)
CFILTER = 100pF (for a 3MHz integration constant)
R1 = 100k
Ω, R2 = 50kΩ (to set LOS assert at -24dBm)
PECL Terminations
The standard PECL termination (50
Ω to VCC - 2V) is
recommended for best performance and output char-
acteristics. The data outputs operate at high speed,
and should always drive transmission lines with
50
Ω to 75Ω terminations. Balanced termination is rec-
ommended for all outputs.
Figure 5 shows an alternative method for terminating
the data outputs. The technique provides approximate-
ly 8mA DC bias current, with a 50
Ω AC load, for the
output termination. This technique is useful for viewing
the output on an oscilloscope or changing the PECL
reference voltage.
The MAX3762’s PECL LOS outputs are relatively slow
and do not need 50
Ω terminations (although they are
capable of driving them). To reduce power, the
MAX3762’s LOS outputs can be terminated with 500
Ω.
Figure 6 shows a typical operating circuit for the
MAX3762.
Wire Bonding
For high current density and reliable operation, the
MAX3761/MAX3762 use gold metalization. Make con-
nections to the dice with gold wire only, and use ball-
bonding
techniques
(wedge
bonding
is
not
recommended). Die-pad size is 4 mils square, with a
6 mil pitch. Die thickness is 12 mils (0.3mm).
Layout Techniques
The MAX3761/MAX3762 are high-frequency, high-
bandwidth circuits. To ensure stability, use good high-
frequency layout techniques. Filter voltage supplies,
and keep ground connections short. Use multiple vias
where possible. Use controlled-impedance transmis-
sion lines to connect the MAX3761/MAX3762 data out-
puts to other circuits.
Low-Power, 622Mbps Limiting Amplifiers
with Chatter-Free Power Detect for LANs
10
______________________________________________________________________________________
470
Ω
DRIVING 50
Ω TO GROUND
470
Ω
50
Ω
50
Ω
OUT+
OUT-
MAX3761
Figure 5. Alternative PECL Termination
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| MAX3762EEP | IC AMP LIMITING 622MBPS 20-QSOP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3762EVKIT-SO | 功能描述:限幅放大器 Evaluation Kit for the MAX3762 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 |
| MAX3765CUB | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX3765CUB+ | 功能描述:特殊用途放大器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX3765CUB+T | 功能描述:特殊用途放大器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX3765CUB-T | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
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