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参数资料
| 型号： | MAX2121ETI+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/19页 |
| 文件大小： | 0K |
| 描述： | RF RECEIVER |
| 标准包装： | 60 |
| 功能： | 调谐器 |
| 频率： | 925MHz ~ 2.175GHz |
| RF 型： | L 频带 |
| 次要属性： | 直接转换 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 包装： | 管件 |
Complete Direct-Conversion L-Band Tuner
Detailed Description
Register Description
The MAX2121 includes 12 user-programmable registers
and two read-only registers. See Table 1 for register
configurations. The register configuration of Table 1
Table 1. Register Configuration
MSB
shows each bit name and the bit usage information for all
registers. Note that all registers must be written after and
no earlier than 100μs after the device is powered up. The
VCO autoselection circuit is triggered by writing to regis-
ter 5. Thus register 5 should be the last register to be
written in order to ensure proper PLL lock.
LSB
REG
NUMBER
REGISTER READ/ REG
NAME WRITE ADDRESS
DATA BYTE
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
1
2
3
4
5
N-Divider
MSB
N-Divider
LSB
Charge
Pump
F-Divider
MSB
F-Divider
LSB
Write
Write
Write
Write
Write
0x00
0x01
0x02
0x03
0x04
FRAC
1
N[7]
CPMP[1]
0
F[15]
F[7]
N[14]
N[6]
CPMP[0]
0
F[14]
F[6]
N[13]
N[5]
CPLIN[1]
0
F[13]
F[5]
N[12]
N[4]
CPLIN[0]
1
F[12]
F[4]
N[11]
N[3]
F[19]
F[11]
F[3]
N[10]
N[2]
F[18]
F[10]
F[2]
N[9]
N[1]
F[17]
F[9]
F[1]
N[8]
N[0]
F[16]
F[8]
F[0]
XTAL
6
Buffer and
Reference
Write
0x05
XD[2]
XD[1]
XD[0]
R[4]
R[3]
R[2]
R[1]
R[0]
Divider
7
8
PLL
VCO
Write
Write
0x06
0x07
D24
VCO[4]
CPS
VCO[3]
ICP
VCO[2]
X
VCO[1]
X
VCO[0]
X
VAS
X
ADL
X
ADE
9
Lowpass
Filter
Write
0x08
10010111
10
Control
Write
0x09
STBY
X
PWDN
0
X
BBG[3]
BBG[2] BBG[1] BBG[0]
11
Shutdown
Write
0x0A
X
PLL
0
DIV
0
VCO
0
BB
0
RFMIX RFVGA
0 0
FE
0
12
Test
Write
0x0B
CPTST[2]
0
CPTST[1]
0
CPTST[0]
0
X
TURBO
1
LD LD LD
MUX[2] MUX[1] MUX[0]
0 0 0
13
Status
Byte-1
Read
0x0C
POR
VASA
VASE
LD
X
X
X
X
14
Status
Byte-2
Read
0x0D
VCOSBR[4] VCOSBR[3] VCOSBR[2] VCOSBR[1] VCOSBR[0] ADC[2] ADC[1] ADC[0]
X = Don’t care.
10
0 = Set to 0 for factory-tested operation.
1 = Set to 1 for factory-tested operation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2121ETI+ | 功能描述:调谐器 Direct-Conversion L-Band Tuner RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| MAX2121ETI+T | 功能描述:调谐器 Direct-Conversion L-Band Tuner RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| MAX2121EVKIT# | 功能描述:射频开发工具 MAX2121 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 |
| MAX212C/D | 功能描述:RS-232接口集成电路 +3V Powered Low-Power True RS-232 Transceiver RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX212CAG | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
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