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参数资料
| 型号： | MAX2870ETJ+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 16/24页 |
| 文件大小： | 0K |
| 描述： | RF FRACT INTR N SYNTH VCO 32TQFN |
| 标准包装： | 60 |
| 功能： | 小数、整数 N 频率合成器/VCO |
| 频率： | 23.5MHz ~ 6GHz |
| RF 型： | 通用 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 包装： | 管件 |
MAX2870
23.5MHz to 6000MHz Fractional/
Integer-N Synthesizer/VCO
Register and Bit Descriptions
The operating mode of the device is controlled by five on-chip registers.
Defaults are not guaranteed upon power-up and are provided for reference only. All reserved bits should only be written
with default values. In low-power mode the register values are retained.
Table 4. Register 0 (Address: 000, Default: 007D0000 HEX )
BIT LOCATION
31
30:15
BIT ID
INT
N[15:0]
NAME
Int-N or Frac-N
Mode Control
Integer Division
Value
DEFINITION
0 = Enables the fractional-N mode
1 = Enables the integer-N mode
The LDF bit must also be set to the appropriate mode.
Sets integer part (N-divider) of the feedback divider factor. All integer
values from 16 to 65,535 are allowed for integer mode. Integer values
from 19 to 4,091 are allowed for fractional mode.
Sets fractional value:
000000000000 = 0 (see F0I bit description)
14:3
FRAC[11:0]
Fractional
Division Value
000000000001 = 1
----
111111111110 = 4094
111111111111 = 4095
2:0
ADDR[2:0]
Address Bits
Register address bits
Table 5. Register 1 (Address: 001, Default: 2000FFF9 HEX )
BIT LOCATION
BIT ID
NAME
DEFINITION
Sets charge-pump output clamp mode.
31
CPOC
CP Output
Clamp
0 = Disables clamping of the CP output when the CP is off
1 = Enables the clamping of the CP output when the CP is off (improved
integer-N in-band phase noise)
Sets CP linearity mode.
00 = Disables the CP linearity mode (integer-N mode)
30:29
CPL[1:0]
CP Linearity
01 = Enables the CP linearity mode (frac-N mode)
10 = Reserved
11 = Reserved
Sets charge-pump test modes.
Charge Pump
00 = Normal mode
28:27
CPT[1:0]
Test
01 = Reserved
10 = Force CP into source mode
11 = Force CP into sink mode
Sets phase value. See the Phase Shift Mode section.
000000000000 = 0
26:15
P[11:0]
Phase Value
000000000001 = 1 (recommended)
-----
111111111111 = 4095
Maxim Integrated
16
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相关代理商/技术参数 |
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| MAX2870ETJ+ | 功能描述:锁相环 - PLL PLL/VCO 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 |
| MAX2870ETJ+T | 功能描述:锁相环 - PLL PLL/VCO 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 |
| MAX2870EVKIT# | 功能描述:射频开发工具 MAX2870 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| MAX2880ETP+ | 制造商:Maxim Integrated Products 功能描述:12.4GHZ HIGH PERFORMANCE FRACTIONAL/INTEGER-N SYNTHESIZER - Rail/Tube 制造商:Maxim Integrated Products 功能描述:RF FRACT INTEGER N SYNTH QFN |
| MAX2880ETP+T | 制造商:Maxim Integrated Products 功能描述:RF FRACT INTEGER N SYNTH QFN |
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