參數(shù)資料
型號: DS21348TN
廠商: Maxim Integrated Products
文件頁數(shù): 14/76頁
文件大?。?/td> 0K
描述: IC LIU LN T1/E1/J1 3.3V 44-TQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
產(chǎn)品變化通告: Product Discontinuation 20/Feb/2012
標(biāo)準(zhǔn)包裝: 160
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: T1/E1/J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 44-TQFP
供應(yīng)商設(shè)備封裝: 44-TQFP(10x10)
包裝: 托盤
DS21348/DS21Q348
21 of 76
Table 2-8. Loopback Control in Hardware Mode
LOOPBACK
SYMBOL
CONTROL
BIT
LOOP1
LOOP0
Remote Loopback
RLB
CCR6.6
1
Local Loopback
LLB
CCR6.7
1
0
Analog Loopback
ALB
CCR6.4
0
1
No Loopback
0
Table 2-9. Transmit Data Control in Hardware Mode
TRANSMIT DATA
SYMBOL
CONTROL
BIT
TX1
TX0
Transmit Unframed
All Ones
TUA1
CCR3.7
1
Transmit Alternating
Ones and Zeros
TAOZ
CCR3.5
1
0
Transmit PRBS
TPRBSE
CCR3.4
0
1
TPOS and TNEG
0
Table 2-10. Receive Sensitivity Settings
EGL
(CCR4.4)
ETS
(CCR1.7)
RECEIVE SENSITIVITY
0
0 (E1)
-12dB (short haul)
1
0 (E1)
-43dB (long haul)
1
1 (T1)
-30dB (limited long haul)
0
1 (T1)
-36dB (long haul)
Table 2-11. Monitor Gain Settings
MM1
(CCR5.5)
MM0
(CCR5.4)
INTERNAL LINEAR
GAIN BOOST (dB)
0
Normal operation (no boost)
0
1
20
1
0
26
1
32
Table 2-12. Internal Rx Termination Select
RT1
(CCR5.1)
RT0
(CCR5.0)
INTERNAL RECEIVE
TERMINATION CONFIGURATION
0
Internal receive-side termination disabled
0
1
Internal receive-side 120
enabled
1
0
Internal receive-side 100
enabled
1
Internal receive-side 75
enabled
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