參數(shù)資料
型號(hào): DS21Q348N
廠商: Maxim Integrated Products
文件頁數(shù): 49/76頁
文件大小: 0K
描述: IC LIU T1/E1/J1 QUAD 3.3V 144BGA
標(biāo)準(zhǔn)包裝: 90
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 144-BBGA
供應(yīng)商設(shè)備封裝: 144-PBGA(17x17)
包裝: 管件
DS21348/DS21Q348
53 of 76
Figure 7-2. Protected Interface Using Internal Receive Termination
NOTES:
1. All resistor values are ±1%.
2. C1 = C2 = 0.1F.
3. S is a 6V transient suppresser.
4. D1 to D8 are Schottky diodes.
5. The fuses are optional to prevent AC power line crosses from compromising the transformers.
6. Rp resistors exist to keep the Fuses from opening during a surge. If they are used, then the 60
receive termination resistance must be adjusted to match the line impedance.
7. The Rt resistors are used to increase the transmitter return loss (Table 7-1). No return loss is required
for T1 applications.
8. The transmit transformer turns ratio (N) would be 1:2 for 3.3V operation.
9. The 68
F is used to keep the local power plane potential within tolerance during a surge.
RTIP
RRING
TTIP
TRING
Receive
Line
N:1
(larger winding
toward the network)
DS21348
1.0F
(non-
polarized)
VDD (21)
VSS (22)
0.1F
VDD (36)
VSS (35)
0.1F
+VDD
0.01F
2.048MHz
(this clock can also
be 1.544MHz for T1
only applications)
MCLK
+VDD
S
C1
D1
D2
D3
D4
1:1
Rp
Fuse
Rp
Fuse
+VDD
C2
D5
D6
D7
D8
Rt
68F
S
(optional)
Transmit
Line
Rp
Fuse
Rp
Fuse
(optional)
10F
0.1F
60
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DS21Q348NB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q348-W 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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