参数资料
型号: SI5369D-C-GQR
厂商: SILICON LABORATORIES
元件分类: 时钟产生/分配
英文描述: 243 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP100
封装: 14 X 14 MM, ROHS COMPLIANT, MS-026AED-HD, TQFP-100
文件页数: 24/84页
文件大小: 870K
代理商: SI5369D-C-GQR
30
Preliminary Rev. 0.4
Reset value = 0010 1010
Register 7.
Bit
D7
D6D5D4
D3D2D1
D0
Name
Reserved
SFOUT5_REG [2:0]
FOSREFSEL [2:0]
Type
RR/W
R/W
Bit
Name
Function
7:6
Reserved.
5:3
SFOUT5_REG [2:0]
SFOUT5_REG [2:0]
Controls output signal format and disable for CKOUT5 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
FOSREFSEL [2:0]
FOSREFSEL [2:0].
Selects which input clock is used as the reference frequency for Frequency Off-
Set (FOS) alarms.
000: XA/XB (External reference)
001: CKIN1
010: CKIN2
011: CKIN3
100: CKIN4
101: Reserved
110: Reserved
111: Reserved
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