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参数资料
| 型号： | MAX2870ETJ+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 20/24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
Table 8. Register 4 (Address: 100, Default: 6180B23C HEX )
BIT LOCATION
31:26
25:24
23
BIT ID
Reserved
BS_MSBs[1:0]
FB
NAME
Reserved
Band-Select MSBs
VCO Feedback
Mode
DEFINITION
Reserved. Program to 011000.
Band-select MSBs. See bits [19:12].
Sets VCO to N counter feedback mode.
0 = Divided
1 = Fundamental
Sets RFOUT_ output divider mode. Double buffered by register 0
when REG4DB = 1.
22:20
DIVA[2:0]
RFOUT_ Output
Divider Mode
000 = Divide by 1, if 3000MHz ≤ f RFOUTA ≤ 6000MHz
001 = Divide by 2, if 1500MHz ≤ f RFOUTA < 3000MHz
010 = Divide by 4, if 750MHz ≤ f RFOUTA < 1500MHz
011 = Divide by 8, if 375MHz ≤ f RFOUTA < 750MHz
100 = Divide by 16, if 187.5MHz ≤ f RFOUTA < 375MHz
101 = Divide by 32, if 93.75MHz ≤ f RFOUTA < 187.5MHz
110 = Divide by 64, if 46.875MHz ≤ f RFOUTA < 93.75MHz
111 = Divide by 128, if 23.5MHz ≤ f RFOUTA < 46.875MHz
Sets band select clock divider value. MSB are located in bits [25:24].
0000000000 = Reserved
19:12
BS[7:0]
Band Select
0000000001 =1
0000000010 = 2
----
1111111111 = 1023
11
10
9
8
Reserved
Reserved
BDIV
RFB_EN
Reserved
Reserved
RFOUTB Output
Path Select
RFOUTB Output
Mode
Reserved. Program to 0.
Reserved. Program to 0.
Sets RFOUTB output path select.
0 = VCO divided output
1 = VCO fundamental frequency
Sets RFOUTB output mode.
0 = Disabled
1 = Enabled
Sets RFOUTB single-ended output power. See the RFOUTA Q and
RFOUTB Q section.
7:6
BPWR[1:0]
RFOUTB Output
Power
00 = -4dBm
01 = -1dBm
10 = +2dBm
11 = +5dBm
5
RFA_EN
RFOUTA Output
Mode
Sets RFOUTA output mode.
0 = Disabled
1 = Enabled
Sets RFOUTA single-ended output power. See the RFOUTA Q and
RFOUTB Q section.
4:3
APWR[1:0]
RFOUTA Output
Power
00 = -4dBm
01 = -1dBm
10 = +2dBm
11 = +5dBm
2:0
Maxim Integrated
ADDR[2:0]
Register Address
Register address
20
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| 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 |
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