參數(shù)資料
型號(hào): SI5351B-A-GT
廠商: Silicon Laboratories Inc
文件頁數(shù): 25/72頁
文件大小: 0K
描述: IC CLK GEN PLL BLANK CUST 10MSOP
標(biāo)準(zhǔn)包裝: 50
系列: MultiSynth™
類型: *
PLL:
輸入: 晶體
輸出: CMOS
電路數(shù): 1
比率 - 輸入:輸出: 1:8
差分 - 輸入:輸出: 無/無
頻率 - 最大: 133MHz
除法器/乘法器: 是/無
電源電壓: 2.25 V ~ 3.63 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 管件
Si5351A/B/C
Preliminary Rev. 0.95
31
Reset value = 0000 0000
Register 17. CLK1 Control
Bit
D7D6D5D4D3D2D1D0
Name
CLK1_PDN
MS1_INT
MS1_SRC
CLK1_INV
CLK1_SRC[1:0]
CLK1_IDRV[1:0]
Type
R/W
Bit
Name
Function
7
CLK1_PDN
Clock 1 Power Down.
This bit allows powering down the CLK1 output driver to conserve power when the out-
put is unused.
0: CLK1 is powered up.
1: CLK1 is powered down.
6MS1_INT
MultiSynth 1 Integer Mode.
This bit can be used to force MS1 into Integer mode to improve jitter performance. Note
that the fractional mode is necessary when a delay offset is specified for CLK1.
0: MS1 operates in fractional division mode.
1: MS1 operates in integer mode.
5
MS1_SRC
MultiSynth Source Select for CLK1.
0: Select PLLA as the source for MultiSynth0.
1: Select PLLB (Si5351A/C only) or VCXO (Si5351B only) MultiSynth0.
4
CLK1_INV
Output Clock 1 Invert.
0: Output Clock 1 is not inverted.
1: Output Clock 1 is inverted.
3:2
CLK1_SRC[1:0] Output Clock 1 Input Source.
These bits determine the input source for CLK1.
00: Select the XTAL as the clock source for CLK1. This option by-passes both synthesis
stages (PLL/VCXO & MultiSynth) and connects CLK1 directly to the oscillator which
generates an output frequency determined by the XTAL frequency.
01: Select CLKIN as the clock source for CLK1. This by-passes both synthesis stages
(PLL/VCXO & MultiSynth) and connects CLK1 directly to the CLKIN input. This essen-
tially creates a buffered output of the CLKIN input.
10: Reserved. Do not select this option.
11: Select MultiSynth 0 as the source for CLK1. Select this option when using the
Si5351 to generate free-running or synchronous clocks.
1:0
CLK1_IDRV[1:0] CLK1 Output Rise and Fall time / Drive Strength Control.
00: 2 mA
01: 4 mA
10: 6 mA
11: 8 mA
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