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參數(shù)資料
| 型號(hào)： | DS2149QN+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 11/32頁(yè) |
| 文件大小： | 0K |
| 描述： | IC LIU T1/J1 5V 28-PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 類型： | 線路接口裝置（LIU） |
| 規(guī)程： | T1/J1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
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DS2149
19 of 32
Table 9-B. Control and Operation Mode Selection
MODE1 MODE0 HARDWARE SOFTWARE NRZ BIPOLAR AMI B8ZS
OUTPUTS
DISABLED
Low
On
Off
On
Off
No
Low
High
On
Off
On
Off
Yes
Low
Open
On
Off
On
Off
On
Off
No
High
Low
Off
On
X
No
High
Off
On
X
Yes
High
Open
Off
On
X
No
Open
Low
On
Off
On
Off
On
No
Open
High
On
Off
On
Off
On
Yes
Open
On
Off
On
Off
On
No
10. DIAGNOSTIC MODE OPERATION
The DS2149 offers several diagnostic modes as listed in Table 10-A. Various diagnostic modes are only
available in software mode. In hardware mode, the diagnostic modes are selected by a combination of pin
settings. In software mode, the diagnostic modes are selected by setting appropriate bits in the diagnostic
control register.
Table 10-A. Diagnostic Modes
AVAILABILITY
SOFTWARE MODE
DIAGNOSTIC MODE
HARDWARE
SOFTWARE
MASKABLE
Local Loopback (LLB)
Yes
No
Analog Loopback (ALB)
Yes
No
Remote Loopback (RLB)
Yes
No
In-Band Network Loopback (NLB)
Yes
Dual Loopback (DLOOP)
Yes
No
Internal Data Pattern Generation and Detection
Transmit AIS (TAIS)
Yes
No
Quasirandom Signal Source (QRSS)
Yes
In-Band Loop-Up/Down Code Generator
No
Yes
No
Error Insertion and Detection
Bipolar Violation Insertion (INSBPV)
Yes
No
Logic Error Insertion (INSLER)
Yes
No
Bipolar Violation Detection (BPV)
Yes
No
Logic Error Detection, QRSS (QPD)
Yes
No
Alarm Condition Monitoring
Receive Carrier Loss (RCL) Monitoring
Yes
Receive Alarm Indication Signal (AIS) Monitoring
No
Yes
Transmit Driver Failure Monitoring (DFMO)
No
Yes
Jitter Attenuator Limit Trip (JALT)
No
Yes
Other Diagnostic Reports
Receive Line Attenuation Indicator (LATN)
No
Yes
No
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