參數(shù)資料
型號: MAX2116EVKIT
廠商: Maxim Integrated Products, Inc.
英文描述: MAX2116/MAX2118 Evaluation Kits
中文描述: MAX2116、MAX2118評估板
文件頁數(shù): 12/15頁
文件大?。?/td> 314K
代理商: MAX2116EVKIT
M
Byte 02 (Default = 3D)
Bits R2, R1, and R0 are the reference divider bits.
The overall reference divide ratio R = 2 x 2
(4 x R2 + 2 x R1 + R0)
,
with the default value of R = 4 (R2 = 0, R1 = 0, R0 = 1).
Bits CP1, CP0 control the charge pump current, with
the default value of ±400μA (Table 4).
Bits OSC2, OSC1, and OSC0 control which of the eight
on-chip VCOs is activated. Default is VCO 5 (101)
(Table 5).
Byte 03 (Default = 7F)
Bit X(0) is unused; default = 0.
Bits F(6)
F(0) set the value of FDAC for the baseband
lowpass filter -3dB cutoff frequency. (see the
Baseband
LPFs
section).
FDAC = 2
6
F(6) + ... +2
0
F(0). (Default FDAC = 127.)
Byte 04 (Default = 02)
Bit ADL is the VCO ADC latch-enable bit. ADL = 1
latches ADC value (ADL = 0, default).
Bit ADE enables VCO tune voltage DAC read. ADE = 1
enables ADC read (ADE = 0, default).
Bit DL sets the differential output drive level for the
MAX2118 (default, DL = 0) (Table 6). This bit is unused
for the MAX2116.
Bits M(4)
M(0) set the value of M counter of lowpass fil-
ter BW control.
M = 2
4
M(4) + 2
3
M(3) + ... +2
0
M(0).
(
Default M = 2.)
Complete DBS Direct-Conversion Tuner ICs
with Monolithic VCOs
12
______________________________________________________________________________________
Table 3. MAX2116/MAX2118 Control Register Bytes
WRITE TO MODE
RESET
VALUE
ADDR-H
MSB
CONTROL BYTE
LSB
Address
C0
C2
C4
C6
C8
CA
CC
CE
00
01
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
N High
N Low
03
B6
DIV2
N7
N14
N6
N13
N5
N12
N4
N11
N3
N10
N2
N9
N1
N8
N0
R and CP and
VCO
3D
02
R2
R1
R0
CP1
CP0
OSC2
OSC1
OSC0
I/Q Filter DAC
LPF Divider DAC
GC2 and Diag
7F
02
1F
03
04
05
X0
ADL
D2
F6
ADE
D1
F5
DL
D0
F4
M4
G4
F3
M3
G3
F2
M2
G2
F1
M1
G1
F0
M0
G0
Table 2. MAX2116/MAX2118 Read Address Byte
AS1
AS0
MSB
Low
Low
Low
Low
Low
High
Low
High
Low
Low
High
High
High
Low
Low
High
Low
High
High
High
Low
High
High
High
AS2
ADDRESS BYTE
0
0
0
0
0
0
0
0
LSB
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
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