参数资料
型号: SI5369B-C-GQ
厂商: SILICON LABORATORIES
元件分类: 时钟产生/分配
英文描述: 808 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP100
封装: 14 X 14 MM, ROHS COMPLIANT, MS-026AED-HD, TQFP-100
文件页数: 21/84页
文件大小: 870K
代理商: SI5369B-C-GQ
28
Preliminary Rev. 0.4
Reset value = 1110 1101
Register 5.
Bit
D7
D6D5D4
D3D2D1
D0
Name
ICMOS [1:0]
SFOUT2_REG [2:0]
SFOUT1_REG [2:0]
Type
R/W
Bit
Name
Function
7:6
ICMOS [1:0]
ICMOS [1:0].
When the output buffer is set to CMOS mode, these bits determine the output buf-
fer drive strength. The first number below refers to 3.3 V operation; the second to
1.8 V operation. These values assume CKOUT+ is tied to CKOUT-.
00: 8mA/2mA
01: 16 mA/4 mA
10: 24 mA/6 mA
11: 32 mA (3.3 V operation)/8mA (1.8 V operation)
5:3
SFOUT2_REG [2:0] SFOUT2_REG [2:0]
Controls output signal format and disable for CKOUT2 output buffer. The LVPECL
and CMOS output formats draw more current than either LVDS or CML; however,
there are restrictions in the allowed output format pin settings so that the maximum
power dissipation for the TQFP devices is limited when they are operated at 3.3 V.
When there are four enabled LVPECL or CMOS outputs, the fifth output must be
disabled. When there are five enabled outputs, there can be no more than three
outputs that are either LVPECL or CMOS.
000: Reserved
001: Disable
010: CMOS
011: Low swing LVDS
100: Reserved
101: LVPECL
110: CML
111: LVDS
2:0
SFOUT1_REG [2:0] SFOUT1_REG [2:0]
Controls output signal format and disable for CKOUT1 output buffer. The LVPECL
and CMOS output formats draw more current than either LVDS or CML; however,
there are restrictions in the allowed output format pin settings so that the maximum
power dissipation for the TQFP devices is limited when they are operated at 3.3 V.
When there are four enabled LVPECL or CMOS outputs, the fifth output must be
disabled. When there are five enabled outputs, there can be no more than three
outputs that are either LVPECL or CMOS.
000: Reserved
001: Disable
010: CMOS
011: Low swing LVDS
100: Reserved
101: LVPECL
110: CML
111: LVDS
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SI5369C-C-GQ 346 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP100
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