參數(shù)資料
型號: XRT75L02IVTR-F
廠商: Exar Corporation
文件頁數(shù): 41/50頁
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 2CH 100TQFP
標(biāo)準(zhǔn)包裝: 1,000
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 2/2
規(guī)程: DS3,E3,STS-1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-TQFP(14x14)
包裝: 帶卷 (TR)
xr
XRT75L02
REV. 1.0.3
TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
44
8.3
TRANSMIT ALL ONES (TAOS):
Transmit All Ones (TAOS) can be set either in Hardware mode by pulling the TAOS_n pins “High” or in Host
mode by setting the TAOS_n control bits to “1” in the Channel control registers. When the TAOS is set, the
Transmit Section generates and transmits a continuous AMI all “1’s” pattern on TTIP_n and TRING_n pins.
The frequency of this “1’s” pattern is determined by TxClk_n.TAOS data path is shown in Figure 29.
FIGURE 28. REMOTE LOOPBACK
FIGURE 29. TRANSMIT ALL ONES (TAOS)
TRING
TTIP
RRING
RTIP
RPOS
RNEG
RCLK
TNDATA
TCLK
TPDATA
HDB3/B3ZS
ENCODER
HDB3/B3ZS
DECODER
J
IT
T
E
R
2
A
T
E
N
U
A
T
O
R
J
IT
T
E
R
2
A
T
E
N
U
A
T
O
R
TIMING
CONTROL
DATA &
CLOCK
RECOVERY
1 if enabled
2 if enabled and selected in either Receive or
Transmit path
Tx
Rx
1
TRING
TTIP
RRING
RTIP
RPOS
RNEG
RCLK
TNDATA
TCLK
TPDATA
HDB3/B3ZS
ENCODER
HDB3/B3ZS
DECODER
J
IT
T
E
R
2
A
T
E
N
U
A
T
O
R
J
IT
T
E
R
2
A
T
E
N
U
A
T
O
R
TIMING
CONTROL
DATA &
CLOCK
RECOVERY
1 if enabled
2 if enabled and selected in either Receive or
Transmit path
Tx
Rx
TAOS
Transmit All 1's
1
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