參數(shù)資料
型號: DS21Q348
廠商: DALLAS SEMICONDUCTOR
元件分類: Digital Transmission Interface
英文描述: DATACOM, PCM TRANSCEIVER, PBGA144
封裝: BGA-144
文件頁數(shù): 39/67頁
文件大?。?/td> 339K
代理商: DS21Q348
DS21348/Q348
44 of 67
Figure 9-1 BASIC INTERFACE
NOTES:
1. All resistor values are +/- 1%.
2. In E1 applications, the Rt resistors are used to increase the transmitter return loss (see Table 9-1). No
return loss is required for T1 applications.
3. The Rr resistors should be set to 60
each if the internal receive-side termination feature is enabled.
When this feature is disabled, Rr = 37.5
for 75 or 60 for 120 E1 systems, or 50 for 100
T1 lines.
4. See Table 9-1 and Table 9-2 for the appropriate transmit transformer turns ratio (N).
RTIP
RRING
TTIP
TRING
Receive
Line
N:1
(larger winding
toward the network)
DS2148
0.47uF
(non-
polarized)
VDD (21)
VSS (20)
0.1uF
VDD (36)
VSS (35)
0.1uF
+VDD
0.01uF
2.048MHz
(this clock can also
be 1.544MHz for T1
only applications)
MCLK
1:1
0.1uF
Rr
Rt
Transmit
Line
10uF
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DS21Q348B 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q348DK 功能描述:網(wǎng)絡(luò)開發(fā)工具 RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
DS21Q348N 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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