参数资料
| 型号： | XRT8001ID-F |
| 厂商： | Exar Corporation |
| 文件页数： | 31/48页 |
| 文件大小： | 0K |
| 描述： | IC WAN T1/E1 DUAL 18SOIC |
| 标准包装： | 20 |
| 类型： | 时钟/频率发生器 |
| PLL： | 是 |
| 主要目的： | 以太网（WAN），T1/E1 |
| 输入： | 时钟 |
| 输出： | 时钟 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:2 |
| 差分 - 输入:输出： | 无/无 |
| 频率 - 最大： | 16.384kHz |
| 电源电压： | 3.3 V ~ 5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 18-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 18-SOIC |
| 包装： | 管件 |
| 其它名称： | 1016-1358-5 |
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XRT8001
37
Rev. 1.01
This step configures the XRT8001 to operate in the
“High Speed – Reverse” Mode.
NOTE: If the user wishes to output a clock signal via the
“CLK1” output pin, then he/she should also write a “1” into
the “PL1EN” bit-field within Command Register, CR0.
STEP 3 – Write the binary expression “0000” into
bit-fields D4 through D1, within Command Register,
CR1, as illustrated below.
Command Register, CR1 (Address = 0x01)
D4
D3
D2
D1
D0
M4
M3
M2
M1
PL2EN
0
X
NOTE: If the user wishes to output a clock signal via the
CLK2 output pin, then he/she should also write a “1” into
the “PL2EN” bit-field within Command Register
STEP 4 – Specify the value for “M” (e.g., as in the “M
x 2.048MHz” clock signal) which is to output via the
“CLK1” output pin.
This is accomplished by reviewing Table 3 to deter-
mine the 5 bit binary value which corresponds with the
desired value of “M”. Afterwards, the user should write
this value into Command Register, CR2.
Value of “M”
Value to be written into the
Command Register, CR2
1
0000x
2
0001x
4
001xx
8
x1xx or 1xxx
Table 12: Relationship between the value of
“M”, and Value to be written into Command
Register, CR2 to configure the “CLK1” output
frequency
STEP 5 – Specify the value for “M” (e.g., as in the
“M x 2.048MHz” clock signal) which is to output via
the “CLK2” output pin.
This is accomplished by reviewing Table 4 to deter-
mine the 5 bit binary value corresponding with the
desired value of “M”. Afterwards, the user should write
this value into Command Register, CR3.
Value of
Value to be written into the
“M”
Command Register, CR3
1
0000x
2
0001x
4
001xx
8
x1xx or 1xxx
Table 13, The Relationship between the value of
“M”, and Value to be written into Command
Register, CR2 to configure the “CLK2” output
frequency
STEP 6 – Enable the desired output signals:
“SYNC”, “CLK1”, “CLK2” and “LOCKDET”.
This is accomplished by writing a “1” into the corre-
sponding bit-fields, within Command Register CR4, as
illustrated below.
Command Register, CR4 (Address = 0x04)
D4
D3
D2
D1
D0
SYNCEN
CLK1EN
CLK2EN
LDETDIS2 LDETDIS1
1
0
相关PDF资料 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT8001ID-F | 制造商:Exar Corporation 功能描述:WAN Clock IC |
| XRT8001IDTR-F | 功能描述:锁相环 - PLL RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
| XRT8001IP | 制造商:EXAR 制造商全称:EXAR 功能描述:WAN Clock for T1 and E1 Systems |
| XRT8001IP-F | 功能描述:锁相环 - PLL RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
| XRT8010 | 制造商:EXAR 制造商全称:EXAR 功能描述:312MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS |
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