參數(shù)資料
型號: CS61884-IRZ
廠商: Cirrus Logic Inc
文件頁數(shù): 8/72頁
文件大?。?/td> 0K
描述: IC LN INTERF T1/E1/J1 160-LFBGA
標(biāo)準(zhǔn)包裝: 126
功能: 線路接口單元(LIU)
接口: E1,J1,T1
電路數(shù): 8
電源電壓: 3.14 V ~ 3.47 V
功率(瓦特): 1.73W
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 160-LFBGA
供應(yīng)商設(shè)備封裝: 160-TFGBA(13x13)
包裝: 散裝
包括: AMI 編碼器和解碼器,B8ZS 編碼器和解碼器,HDB3 編碼器和解碼器,LOS 檢測
產(chǎn)品目錄頁面: 759 (CN2011-ZH PDF)
其它名稱: 598-1717
CS61884
16
DS485F3
3.6 Digital Rx/Tx Data I/O
SYMBOL
LQFP
LFBGA
TYPE
DESCRIPTION
TCLK0
36
N1
I
Transmit Clock Input Port 0
- When TCLK is active, the TPOS and TNEG pins function
as NRZ inputs that are sampled on the falling edge of
TCLK.
- If MCLK is active, TAOS will be generated when TCLK is
held High for 16 MCLK cycles.
NOTE: MCLK is used as the timing reference during TAOS
and must have the appropriate stability.
- If TCLK is held High in the absence of MCLK, the TPOS
and TNEG inputs function as RZ inputs. In this mode, the
transmit pulse width is set by the pulse-width of the signal
input on TPOS and TNEG. To enter this mode, TCLK must
be held high for at least 12
μS.
- If TCLK is held Low, the output drivers enter a low-power,
high impedance state.
TPOS0/TDATA0
TNEG0/UBS
37
38
N2
N3
I
Transmit Positive Pulse/Transmit Data Input Port 0
Transmit Negative Pulse/Unipolar-Bipolar Select Port 0
The function of the TPOS/TDATA and TNEG/UBS inputs
are determined by whether Unipolar, Bipolar or RZ input
mode has been selected.
Bipolar Mode - In this mode, NRZ data on TPOS and
TNEG are sampled on the falling edge of TCLK and trans-
mitted onto the line at TTIP and TRING respectively. A
“High” input on TPOS results in transmission of a positive
pulse; a “High” input on TNEG results in a transmission of a
negative pulse. The translation of TPOS/TNEG inputs to
TTIP/TRING outputs is as follows:
Unipolar mode - Unipolar mode is activated by holding
TNEG/UBS “High” for more than 16 TCLK cycles, when
MCLK is present. The falling edge of TCLK samples a uni-
polar data steam on TPOS/TDATA.
RZ Mode - To activate RZ mode tie TCLK “High” with the
absence of MCLK. In this mode, the duty cycle of the
TPOS and TNEG inputs determine the pulse width of the
output signal on TTIP and TRING.
TPOS
TNEG
OUTPUT
00
Space
1
0
Positive Mark
0
1
Negative Mark
11
Space
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