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參數(shù)資料
| 型號： | DS2153Q-A7+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 19/60頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX E1 1-CHIP 5V 44-PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 功能： | 單芯片收發(fā)器 |
| 接口： | E1 |
| 電路數(shù)： | 1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 電流 - 電源： | 65mA |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 44-PLCC（16.59x16.59） |
| 包裝： | 帶卷 (TR) |
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DS2153Q
26 of 60
6 ERROR COUNT REGISTERS
There are a set of four counters in the DS2153Q that record bipolar or code violations, errors in the CRC4
SMF codewords, E bits as reported by the far end, and word errors in the FAS. Each of these four
counters are automatically updated on either 1-second boundaries (CCR2.7 = 0) or every 62.5ms
(CCR2.7 = 1) as determined by the timer in Status Register 2 (SR2.4). Hence, these registers contain
performance data from either the previous second or the previous 62.5ms. The user can use the interrupt
from the timer to determine when to read these registers. The user has a full second (or 62.5ms) to read
the counters before the data is lost.
6.1 BPV or Code Violation Counter
Violation Count Register 1 (VCR1) is the most significant word and VCR2 is the least significant word of
a 16-bit counter that records either Bipolar Violations (BPVs) or Code Violations (CVs). If CCR2.6 = 0,
then the VCR counts bipolar violations. Bipolar violations are defined as consecutive marks of the same
polarity. In this mode, if the HDB3 mode is set for the receive side via CCR1.2, then HDB3 codewords
are not counted as BPVs. If CCR2.6 = 1, then the VCR counts code violations as defined in CCITT
O.161. Code violations are defined as consecutive bipolar violations of the same polarity. In most
applications, the DS2153Q should be programmed to count BPVs when receiving AMI code and to count
CVs when receiving HDB3 code. This counter increments at all times and is not disabled by loss of sync
conditions. The counter saturates at 65,535 and will not rollover. The bit error rate on an E1 line would
have to be greater than 10**-2 before the VCR would saturate.
VCR1: UPPER BIPOLAR VIOLATION COUNT REGISTER 1 (Address = 00
Hex)
VCR2: LOWER BIPOLAR VIOLATION COUNT REGISTER 2 (Address = 01
Hex)
(MSB)
(LSB)
V15
V14
V13
V12
V11
V10
V9
V8
VCR1
V7
V6
V5
V4
V3
V2
V1
V0
VCR2
SYMBOL
POSITION
NAME AND DESCRIPTION
V15
VCR1.7
MSB of the 16-bit bipolar or code violation count.
V0
VCR2.0
LSB of the 16-bit bipolar or code violation count.
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| DS2154LNA2+ | IC TXRX E1 5V 100-LQFP |
| DS2154L | IC TXRX E1 1CHIP 5V ENH 100-LQFP |
| DS2155LN | IC TXRX T1/E1/J1 1-CHIP 100-LQFP |
| DS2156LN+ | IC TXRX T1/E1/J1 1-CHIP 100-LQFP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2153QN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Transceiver |
| DS2153QN-A5 | 功能描述:IC TXRX E1 1-CHIP 5V IND 44-PLCC RoHS:否 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標(biāo)準(zhǔn)包裝:750 系列:* |
| DS2153QN-A7 | 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 |
| DS2153QN-A7/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS2153QN-A7/T&R+ | 制造商:Maxim Integrated Products 功能描述:FRAMER E1/ISDN-PRI/PCM-30 5V 44PLCC - Tape and Reel |
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