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參數資料
| 型號： | MAX4145ESD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 6/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RX DIFF LINE HS 14-SOIC |
| 標準包裝： | 2,500 |
| 類型： | 接收器 |
| 驅動器/接收器數： | 0/3 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 14-SOIC |
| 包裝： | 帶卷 (TR) |
MAX4144/MAX4145/MAX4146
High-Speed, Low-Distortion,
Differential Line Receivers
14
______________________________________________________________________________________
TWISTED-PAIR-TO-COAX CABLE CONVERTER
Losses are higher at higher frequencies, contributing to
severe pulse-edge rounding in digital applications. The
nominal impedance of twisted-pair telephone wire is
110
Ω.
The MAX4145/MAX4146, with variable gain up to
+10V/V and +100V/V, respectively, can be used to
compensate for cable losses. In the graph shown in
Figure 8, the cable characteristics are such that the
video-chroma frequency loss is almost 15dB greater
than the low-frequency loss. The losses can be com-
pensated for by using the RC-shaping network (Figure
9).
A 560
Ω resistance and a 100pF capacitance shape the
MAX4146 gain to inversely match the frequency of the
1000 feet of telephone cable. The differential gain and
phase, using the circuit shown in Figure 9, is 0.55%
and 0.18°, respectively.
Figure 9. Circuit for Transmitting NTSC/PAL Video Over 1000 Feet of Twisted-Pair Telephone Line
VIDEO INPUT
VIDEO
OUTPUT
75
Ω
75
Ω
1, 7
8, 14
10
12
9
13
1000 FEET
2
6
MAX4147ESD
0.1
μF
VCC
0.1
μF
VEE
0.1
μF
11
9
13
75
Ω
2
110
Ω
560
Ω
100pF
6
5
3
VCC
VEE
MAX4146ESD
0.1
μF
1, 7
8, 14
OUT+
IN+
IN-
SENSE
IN+
OUT-
SENSE-
SENSE+
RT
OUT
REF
75
Ω
75
Ω
COAX
75
Ω
VOUT
MAX4147
MAX4144
__________________________________________________Typical Application Circuit
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX4146 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:High-Speed.Low-Distortion.Differential Line Receivers |
| MAX4146EEE | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數量:Single 共模抑制比（最小值）: 輸入補償電壓: 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX4146EEE+ | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數量:Single 共模抑制比（最小值）: 輸入補償電壓: 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX4146EEE+T | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數量:Single 共模抑制比（最小值）: 輸入補償電壓: 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX4146EEE-T | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數量:Single 共模抑制比（最小值）: 輸入補償電壓: 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
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