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參數(shù)資料
| 型號(hào)： | DS2187 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | Receive Line Interface(接收線接口) |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PDIP18 |
| 封裝： | 0.300 INCH, DIP-18 |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大?。?/td> | 85K |
| 代理商： | DS2187 |
DS2187
022798 3/9
PIN DESCRIPTION
Table 1
PIN
SYMBOL
TYPE
DESCRIPTION
1
AVDD
–
Analog Positive Supply.
5.0 volts.
2
RAIS
I
Reset Alarm Indication Signal.
Every other low pulse at this input establishes
the AIS alarm detection period.
3
ZCSEN
I
Zero Code Suppression Enable.
When high, incoming B8ZS (RCLKSEL=0)
or HDB3 (RCLKSEL=1) code words are replaced with all zeros at RPOS and
RNEG; when low, no code replacement occurs.
4
LCAP
–
Loop Cap.
Part of internal loop filter; attach a 10 microfarad capacitor from this
pin to V
SS
.
5
RCLKSEL
I
Receive Clock Select.
Tie to V
SS
for 1.544 MHz (T1) applications, to V
DD
for
2.048 MHz (CEPT) applications.
6
7
RTIP
RRING
I
Receive Tip and Ring.
Connect to line transformer as shown in Figure 2.
8
LOCK
O
Frequency Lock.
High state indicates that internal circuitry is phase– and
frequency–locked to the incoming signal at RRING and RTIP.
9
AVSS
–
Analog Signal Ground.
0.0 volts.
10
DVSS
–
Digital Signal Ground.
0.0 volts.
11
RCLK
O
Receive Clock.
Extracted line rate clock.
12,
13
RNEG
RPOS
O
Receive Data.
Extracted receive data; updated on rising edge of RCLK.
14
NC
–
No Connect.
Do not connect to this pin.
15
BPV
O
Bipolar Violation.
Transitions high for the full bit period when a bit in violation
appears at RPOS or RNEG; B8ZS code words are not accused when
ZCSEN=1. BPV not valid for RCLKSEL=1 and ZCSEN=1.
16
AIS
O
Alarm Indication Signal.
High when the received data stream has contained
less than three zeros during the last two periods of the RAIS signal.
17
RCL
O
Receive Carrier Loss.
High if 192 zeros appear at RPOS and RNEG; reset
on next occurrence of a one.
18
DVDD
–
Digital Positive Supply.
5.0 volts
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2187+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Receive Line Interface 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 |
| DS2187S | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Receive Line Interface 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 |
| DS2187S/T&R | 制造商:Maxim Integrated Products 功能描述:IC RECEIVE LINE INTERFACE 20SOIC |
| DS2187S/T&R | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Receive Line Interface 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 |
| DS2187S+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Receive Line Interface 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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