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參數(shù)資料
| 型號： | MAX3658AETA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 14/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP TRANSIMPEDANCE 8-TDFN |
| 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： | 轉(zhuǎn)阻放大器 |
| 應(yīng)用： | 光纖學(xué)網(wǎng)絡(luò) |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-TDFN-EP（3x3） |
| 包裝： | 帶卷 (TR) |
MAX3658
Select CCOUPLE so the low-frequency cutoff due to the
load resistors and coupling capacitors is much lower
than the low-frequency cutoff of the MAX3658. The cou-
pling capacitor should be 0.1F or larger for SONET
data. For lowest jitter, 1.0F is recommended. Refer to
application note HFAN-01.1:
Choosing AC-Coupling
Capacitors for a more detailed discussion on choosing
AC-coupling capacitors.
Select Output Filter
Input sensitivity is improved by adding a filter between
TIA and the quantizer/limiting amplifier, with 0.5pF input
capacitance. Typical bandwidth of the MAX3658 is
580MHz; the highest expected bandwidth is 730MHz.
Layout Considerations
Figure 3 shows suggested layouts for 4- and 5-pin TO
headers.
Wire Bonding
For high-current density and reliable operation, the
MAX3658 uses gold metalization. For best results, use
gold-wire ball-bonding techniques. Use caution when
wedge bonding. Die-size is 52 mils x 29 mils, (1.32mm
x 0.736mm) and die thickness is 15 mils (380m). The
bond-pad passivation opening is 75m and bond-pad
metal thickness is 5m. Refer to Maxim application note
HFAN-08.0.1:
Understanding Bonding Coordinates and
Physical Die Size for additional information on bond-
pad coordinates.
Applications Information
Optical Power Relations
Many of the MAX3658 specifications relate to the input
signal amplitude. When working with optical receivers,
the input is sometimes expressed in terms of average
optical power and extinction ratio. Figure 4 and Table 1
show relations that are helpful for converting optical
power to input signal when designing with the MAX3658.
Optical Sensitivity Calculation
The input-referred RMS noise current (in) of the
MAX3658 generally determines the receiver sensitivity.
To obtain a system bit-error rate (BER) of 1E-10, the
signal-to-noise ratio must always exceed 12.7. The
input sensitivity, expressed in average power, can be
estimated as:
SENSITIVITY
ir
r
dBm
ne
e
log
.
=
××
+
()
××
()
×
10
12 7
1
21
1000
ρ
622Mbps, Low-Noise, High-Gain
Transimpedance Preamplifier
8
_______________________________________________________________________________________
5-PIN HEADER
4-PIN HEADER
PHOTODIODE
MOUNTED ON CFILT
OUTPUT POLARITIES
REVERSED FOR MAX3658B
CASE IS GROUND
PHOTODIODE
MOUNTED ON CFILT
OUTPUT POLARITIES
REVERSED FOR MAX3658B
CASE IS GROUND
PHOTODIODE
GND
MAX3658A
FIL
T
IN
MON
PHOTODIODE
MAX3658A
FIL
T
IN
MON
CVCC1
VCC
OUT-
OUT+
VCC
OUT-
MON
OUT+
CVCC1
Figure 3. Suggested TO Header Layouts
Table 1. Optical Power Relations*
PARAMETER
SYMBOL
RELATION
Average Power
PAVG
P
PP
AVG
=
+
01
2
Extinction Ratio
re
r
P
e
=
1
0
Optical Power of a 1
P1
PP
r
AVG
e
12
1
=
+
Optical Power of a 0
P0
P
r
AVG
e
0
2
1
=
+
Optical Modulation
Amplitude
PIN
PP
P
r
IN
AVG
e
=
+
10
2
1
*
Assuming a 50% average mark density.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3658AEVKIT | 制造商:Maxim Integrated Products 功能描述:622MBPS, LOW-NOISE, HIGH-GAIN TRANSIMPEDANCE - Bulk |
| MAX3658BE/D | 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 |
| MAX365C/D | 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| MAX365CPE | 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| MAX365CPE+ | 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
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