MAX2117 데이터 시트보기 (PDF) - Maxim Integrated
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MAX2117 Datasheet PDF : 20 Pages
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Complete, Direct-Conversion Tuner for
MMDS Applications
Detailed Description
Register Description
The MAX2117 includes 12 user-programmable registers
and 2 read-only registers. See Table 1 for register con-
figurations. The register configuration of Table 1 shows
each bit name and the bit usage information for all regis-
ters. Note that all registers must be written after and no
earlier than 100µs after the device is powered up.
Table 1. Register Configuration
REG
NO
1
2
3
4
5
6
7
8
9
REGISTER READ/ REG
NAME WRITE ADDRESS
N-Divider
MSB
N-Divider
LSB
Charge
Pump
Not Used
Not Used
XTAL
Divider/
R-Divider
PLL
VCO
LPF
Write
Write
Write
Write
Write
Write
Write
Write
Write
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
MSB
D[7]
X
N[7]
CPMP[1]
0
X
X
XD[2]
D48
VCO[4]
LPF[7]
10
Control Write 0x09
STBY
D[6]
N[14]
N[6]
CPMP[0]
0
X
X
XD[1]
CPS
VCO[3]
LPF[6]
X
D[5]
N[13]
DATA BYTE
D[4]
N[12]
D[3]
N[11]
LSB
D[2] D[1] D[0]
N[10] N[9] N[8]
N[5]
N[4]
N[3]
N[2] N[1] N[0]
CPLIN[1] CPLIN[0]
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
XD[0]
R[4]
R[3]
R[2] R[1] R[0]
ICP
VCO[2]
LPF[5]
PWDN
0
X
VCO[1]
LPF[4]
X
X
VCO[0]
LPF[3]
X
VAS
LPF[2]
X
ADL
LPF[1]
X
ADE
LPF[0]
BBG[3] BBG[2] BBG[1] BBG[0]
11 Shutdown Write 0x0A
X
PLL
DIV
VCO
BB RFMIX RFVGA FE
0
0
0
0
0
0
0
12
Test
Write
0x0B
CPTST[2] CPTST[1] CPTST[0]
0
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
Status
14
Byte-2
Read
0x0D VCOSBR[4] VCOSBR[3] VCOSBR[2] VCOSBR[1] VCOSBR[0] ADC[2] ADC[1] ADC[0]
0 = Set to “0” for factory-tested operation.
1 = Set to “1” for factory-tested operation.
X = Don’t care.
Table 2. N-Divider MSB Register
BIT NAME BIT LOCATION (0 = LSB) DEFAULT
FUNCTION
X
7
X
Don’t care.
N[14:8]
6–0
0000011
Sets the most significant bits of the PLL integer-divide number (N).
Default value is N = 950 decimal. N can range from 235 to 1000.
Table 3. N-Divider LSB Register
BIT NAME BIT LOCATION (0 = LSB) DEFAULT
FUNCTION
N[7:0]
7–0
10110110
Sets the least significant bits of the PLL integer-divide number (N).
Default value is N = 950 decimal. N can range from 235 to 1000.
10 ______________________________________________________________________________________
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