- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385273 > DS26303G-75 (Maxim Integrated Products, Inc.) 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit PDF資料下載
參數(shù)資料
| 型號： | DS26303G-75 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
| 中文描述： | 3.3，E1/T1/J1，短途，八線路接口單元 |
| 文件頁數(shù)： | 66/97頁 |
| 文件大小： | 966K |
| 代理商： | DS26303G-75 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁當前第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
66 of 97
6.9 BERT
The BERT is a software-programmable test-pattern generator and monitor capable of meeting most error-
performance requirements for digital transmission equipment. It generates and synchronizes to pseudorandom
patterns with a generation polynomial of the form x
n
+ x
y
+ 1, where n and y can take on values from 1 to 32 and to
repetitive patterns of any length up to 32 bits.
The transmit direction generates the programmable test pattern, and inserts the test pattern payload into the data
stream.
The receive direction extracts the test pattern payload from the receive data stream, and monitors the test pattern
payload for the programmable test pattern. The features include:
Programmable PRBS pattern.
The pseudorandom bit sequence (PRBS) polynomial (x
n
+ x
y
+ 1) and seed
are programmable (length n = 1 to 32, tap y = 1 to n – 1, and seed = 0 to 2
n
– 1).
Programmable repetitive pattern.
The repetitive pattern length and pattern are programmable (the length n =
1 to 32 and pattern = 0 to 2
– 1).
24-bit error count and 32-bit bit count registers
Programmable bit-error insertion.
Errors can be inserted individually, on a pin transition, or at a specific rate.
The rate 1/10
is programmable (n = 1 to 7).
Pattern synchronization at a 10
-3
BER.
Pattern synchronization is achieved even in the presence of a
random bit-error rate (BER) of 10
-3
.
6.9.1 Configuration and Monitoring
Set
PORT.CR1
.BENA = 1 to enable the BERT. The following tables show how to configure the on-board BERT to
send and receive common patterns.
Table 6-10. Pseudorandom Pattern Generation
BPCR
REGISTER
PLF[4:0]
(hex)
08
BERT.CR
TPIC,
RPIC
0
PATTERN TYPE
PTF[4:0]
(hex)
04
PTS
QRSS
BERT.
PCR
BERT.
SPR2
BERT.
SPR1
2
9
-1 O.153 (511 type)
2
11
-1 O.152 and O.153
(2047 type)
2
15
-1 O.151
2
20
-1 O.153
2
20
-1 O.151 QRSS
2
23
-1 O.151
0
0
0x0408
0xFFFF
0xFFFF
08
0A
0
0
0x080A
0xFFFF
0xFFFF
0
0D
0E
0
0
0x0D0E
0xFFFF
0xFFFF
1
10
13
0
0
0x1013
0xFFFF
0xFFFF
0
02
13
0
1
0x0253
0xFFFF
0xFFFF
0
11
16
0
0
0x1116
0xFFFF
0xFFFF
1
Table 6-11. Repetitive Pattern Generation
BPCR
REGISTER
PTF[4:0]
(hex)
(hex)
NA
PATTERN TYPE
PLF[4:0]
PTS
QRSS
BERT.
PCR
BERT.
SPR2
BERT.
SPR1
All 1s
00
1
0
0x0020
0xFFFF
0xFFFF
All 0s
NA
00
1
0
0x0020
0xFFFF
0xFFFE
Alternating 1s and 0s
NA
01
1
0
0x0021
0xFFFF
0xFFFE
Double alternating and 0s
NA
03
1
0
0x0023
0xFFFF
0xFFFC
3 in 24
NA
17
1
0
0x0037
0xFF20
0x0022
1 in 16
NA
0F
1
0
0x002F
0xFFFF
0x0001
1 in 8
NA
07
1
0
0x0027
0xFFFF
0xFF01
1 in 4
NA
03
1
0
0x0023
0xFFFF
0xFFF1
相關PDF資料 |
PDF描述 |
|---|---|
| DS26303GN-120 | 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
| DS26303GN-75 | 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
| DS26303L-120 | 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
| DS26303L-75 | 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
| DS26303LN-120 | 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS26303GN-120 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
| DS26303GN-75 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit |
| DS26303L-120 | 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| DS26303L-120+ | 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| DS26303L-120+A3 | 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
發(fā)布緊急采購，3分鐘左右您將得到回復。