參數(shù)資料
型號： 73M1922-DB
廠商： Maxim Integrated Products
文件頁數(shù)： 73/82頁
文件大小： 0K
描述： BOARD DEMO 73M1922 20-TSSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 1
主要目的： *
嵌入式： 否
已用 IC / 零件： *
主要屬性： *
次要屬性： *
已供物品： 板，CD
DS_1x22_017
73M1822/73M1922 Data Sheet
Rev. 1.6
75
13
Loopback and Testing Modes
Figure 36 show the five loopback modes available in the 73M1x22.
TBS
DSDM
PRM
SCM
MSBI
LSBI
RxAFE
SinC3
Filter
Onchip
LIC
MAFE
Interface
TxAFE
Interp.
Filter
Decim.
Filter
TxData
RxData
RBS
Tip
Ring
PRP
SCP
TxD
RxD
CTL
STA
External
LIC
73M1822 HIC/
73M1902
73M1822 LIC/
73M1912
Aux A/D
STA
ALB
INTLB1
DIGLB2
DIGLB1
INTLB2
RxA
TxA
TxD
RxD
Ring
Buffer
Figure 36: Loopback Modes Highlighted
Table 47 describes how the above control bits interact to provide each of the six loopback modes.
Table 47: Loopback Modes
TEST
TMEN
DTST
Loopback Mode
Mnemonic
0000
0
00
Normal mode. (Default)
No Loops
0000
1
10
Digital Loopback mode. Interpolated
TxData (TxD) is looped back to the
Decimated RxData input (RxD).
DIGLB1
0000
1
11
Remote Analog Loopback. Received RxD
is looped back as TxD and transmitted
back to the 73M1922
Line-Side Device; RxD is D/A converted to
yield the analog transmit signal (TxA).
INTLB1
0001
0
00
Digital Loopback mode. Transmit Bit
Stream (TBS) is looped back to receive
digital channel and received (DIGLB2).
DIGLB2
0010
0
00
Remote Analog Loopback. Receive
analog signal is converted to Received Bit
Stream (RBS) and is looped back to TBS
and the analog transmit channel (INTLB2).
INTLB2
0011
0
00
Analog Loopback. The transmit data is
connected to the receiver at the analog
interface and received (ALB).
ALB
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