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參數(shù)資料
| 型號： | MAX3172EAI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TERM/TXRX MULTIPROT 28-SSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 46 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS232 |
| 電源電壓： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 管件 |
MAX3172/MAX3174
+3.3V Multiprotocol Software-Selectable
Cable Terminators and Transceivers
______________________________________________________________________________________
13
In Figure 9, the MAX3172/MAX3174 are used to imple-
ment the resistive T-network that is needed to properly
terminate the V.35 driver and receiver. Internal to the
MAX3172/MAX3174, S1 and S2 are closed to connect
the T-network resistors to the circuit. The V.28 termina-
tion resistor, internal to the MAX3170, is disabled by
opening S3 to avoid interference with the T-network
impedance.
The V.35 specification allows for ±4V of ground differ-
ence between the V.35 generator and V.35 load. The
V.35 data rates may be as high as 10Mbps. The
MAX3172/MAX3174 maintain correct terminal imped-
ances over these conditions.
V.35 EMI Reduction
For applications where EMI reduction is especially
important, the MAX3172/MAX3174 termination net-
works provide a pin for shunting common-mode driver
currents to GND (Figure 10). Mismatches between A
and B driver output propagation delays create a com-
mon-mode disturbance on the cable. This common-
mode energy can be shunted to GND by placing a
100pF capacitor (C1 to GND) from the center point of
the T-network termination (R1C, R2C, and R3C).
V.28 Termination
Most industry-standard V.28 receivers (including the
MAX3170) do not require external termination because
the receiver includes an internal 5k termination resis-
tor. When the MAX3172/MAX3174 are placed in V.28
mode, all five of the termination networks are placed in
a high-Z mode. In high-Z mode, the MAX3172/
MAX3174 termination networks will not interfere with the
MAX3170's internal 5k termination.
Figure 9. V.35 Termination and Internal Resistance Networks
R6
10k
R8
5k
R3
127
R2
52
R1
52
A′
B′
C′
A
B
GND
R5
30k
R7
10k
R4
30k
MAX3172
MAX3174
MAX3170
S3
S2
S1
RECEIVER
Figure 10. V.35 Driver
R3
127
R2
52
R1
52
A
B
C(GND)
MAX3172
MAX3174
S1
S2
C1
100pF
DRIVER
R_C
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| MAX3172EAI+ | 功能描述:接口 - 專用 3.3V 3Tx/3Rx Tcvr Multiprotocol RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MAX3172EAI+T | 功能描述:接口 - 專用 3.3V 3Tx/3Rx Tcvr Multiprotocol RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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| MAX31730AUB+ | 制造商:Maxim Integrated Products 功能描述:TRIPLE REMOTE TEMP SENSOR USOP. - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC REMOTE TEMP SENSOR USSOP |
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