参数资料
型号: XRT71D04IV
厂商: Exar Corporation
文件页数: 13/22页
文件大小: 0K
描述: IC JITTER ATTENUATOR 4CH 80TQFP
标准包装: 94
类型: *
PLL:
输入: 时钟
输出: 时钟
电路数: 1
比率 - 输入:输出: 4:3
差分 - 输入:输出: 无/无
频率 - 最大: 44.736MHz
除法器/乘法器: 无/无
电源电压: 3.135 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-TQFP(14x14)
包装: 托盘
XRT71D04
á
4 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR, STS-1 TO DS3 DESYNCHRONIZER
REV. 1.1.1
19
NOTES:
1. A5 is always “0”.
2. R/W = “1” for Read Operations
3. R/W = “0” for Write Operations
4. Denotes a “don’t care” value (shaded areas)
3.1.7
Simplified Interface Option
The user can simplify the design of the circuitry con-
necting to the Microprocessor Serial Interface by ty-
ing both the SDO and SDI pins together, and reading
data from and/or writing data to this combined signal.
This simplification is possible because only one of
these signals are active at any given time. The inac-
tive signal will be tri-stated.
FIGURE 9. MICROPROCESSOR SERIAL INTERFACE DATA STRUCTURE
D0
D1
D2
D7
D6
D5
D4
D3
High Z
SDO
A0
D0
R/W
D1
A6
0
A4
A3
A2
A1
D7
D6
D5
D4
D3
D2
SDI
1234567
89
1 0
1 1
1 2
1 3
1 4
1 5
1 6
SClk
CS
High Z
FIGURE 10. TIMING DIAGRAM FOR THE MICROPROCESSOR SERIAL INTERFACE
SDI
R/W
A1
A0
CS
SClk
CS
SClk
SDI
SDO
D0
D1
D2
D7
t22
t21
t23
t24
t25
t26
t27
t28
t29
t30
t31
t32
t33
Hi-Z
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