Si570/Si571
Rev. 0.31
15
Register 7. High Speed/N1 Dividers
Bit
D7D6D5D4D3D2D1D0
Name
HS_DIV[2:0]
N1[6:2]
Type
R/W
Bit
Name
Function
7:5
HS_DIV[2:0]
DCO High Speed Divider.
Sets value for high speed divider that takes the DCO output fOSC as its clock input.
000 = 4
001 = 5
010 = 6
011 = 7
100 = Not used.
101 = 9
110 = Not used.
111 = 11
4:0
N1[6:2]
CLKOUT Output Divider.
Sets value for CLKOUT output divider. Allowed values are [1] and [2, 4, 6, ..., 27]. Illegal
odd divider values will be rounded up to the nearest even value. The value for the N1 reg-
ister can be calculated by taking the divider ratio minus one. For example, to divide by 10,
write 0001001 (9 decimal) to the N1 registers.
0000000 = 1
1111111 = 27
Register 8. Reference Frequency
Bit
D7D6D5D4D3D2D1D0
Name
N1[1:0]
RFREQ[37:32]
Type
R/W
Bit
Name
Function
7:6
N1[1:0]
CLKOUT Output Divider.
Sets value for CLKOUT output divider. Allowed values are [1, 2, 4, 6, ..., 27]. Illegal odd
divider values will be rounded up to the nearest even value. The value for the N1 regis-
ter can be calculated by taking the divider ratio minus one. For example, to divide by
10, write 0001001 (9 decimal) to the N1 registers.
0000000 = 1
1111111 = 27
5:0
RFREQ[37:32]
Reference Frequency.
Frequency control input to DCO.
相关PDF资料
571KFAFREQDGR VCXO, CLOCK, 10 MHz - 945 MHz, CMOS OUTPUT
571MDAFREQDG VCXO, CLOCK, 10 MHz - 945 MHz, LVPECL OUTPUT
550ME614M400DGR VCXO, CLOCK, 614.4 MHz, LVPECL OUTPUT
550MH040M000DGR VCXO, CLOCK, 40 MHz, LVPECL OUTPUT
550MH166M628DGR VCXO, CLOCK, 166.628 MHz, LVPECL OUTPUT
550ND125M000DGR VCXO, CLOCK, 125 MHz, LVDS OUTPUT
550CJ153M600DGR VCXO, CLOCK, 153.6 MHz, CMOS OUTPUT
550EJ100M000DG VCXO, CLOCK, 100 MHz, LVPECL OUTPUT
相关代理商/技术参数
571FMA000107DG 功能描述:VCXO振荡器 PRGRMBL VCXO 8 PIN 7mm x 5mm RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C
571FMA000107DGR 制造商:Silicon Laboratories Inc 功能描述:OSCILLATOR - Tape and Reel
571G 制造商:未知厂家 制造商全称:未知厂家 功能描述:0.56''Three Digit Numeric LED Display
571GFC000107DG 功能描述:VCXO振荡器 PRGRMMBL VCXO 8 PIN 7mm x 5mm RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C
571GGC000103DG 制造商:Silicon Laboratories Inc 功能描述:OSCILLATOR - Trays
571GGC000103DGR 制造商:Silicon Laboratories Inc 功能描述:OSCILLATOR - Tape and Reel
571HR 制造商:未知厂家 制造商全称:未知厂家 功能描述:0.56''Three Digit Numeric LED Display
571JDC000107DG 功能描述:VCXO振荡器 PRGRMMBL VCXO 8 PIN 7mm x 5mm RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C