MAX2117CTI+T Maxim Integrated Products, MAX2117CTI+T Datasheet - Page 12

• Manufacturer Part Number: MAX2117CTI+T
• Description: RF Receiver Direct Conversion Tu ner for MMDS -75 to
• Manufacturer: Maxim Integrated Products

Specifications of MAX2117CTI+T

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Complete DBS Direct-Conversion Tuner ICs
with Monolithic VCOs
Bits R2, R1, and R0 are the reference divider bits.
The overall reference divide ratio R = 2 x 2
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).
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).
Table 2. MAX2116/MAX2118 Read Address Byte
Table 3. MAX2116/MAX2118 Control Register Bytes
12
WRITE TO MODE
LPF Divider DAC
High
High
High
High
AS2
GC2 and Diag
Low
Low
Low
Low
R and CP and
I/Q Filter DAC
______________________________________________________________________________________
Address
N High
N Low
VCO
High
High
High
High
AS1
Low
Low
Low
Low
RESET
VALUE
High
High
High
High
AS0
B6
3D
Low
Low
Low
Low
03
7F
02
1F
—
ADDR-H
MSB
CA
CC
CE
C0
C2
C4
C6
C8
00
01
02
03
04
05
1
1
1
1
1
1
1
1
Byte 02 (Default = 3D)
Byte 03 (Default = 7F)
MSB
DIV2
ADL
N7
R2
X0
D2
(4 x R2 + 2 x R1 + R0)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
ADE
N14
N6
D1
R1
F6
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
,
N13
FDAC = 2
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
N5
DL
D0
R0
F5
0
0
0
0
0
0
0
0
ADDRESS BYTE
0
0
0
0
0
0
0
0
4
✕
CONTROL BYTE
M(4) + 2
N12
CP1
6
N4
M4
G4
F4
0
0
0
0
0
0
0
0
✕
F(6) + ... +2
0
0
0
0
1
1
1
1
3
✕
N11
CP0
N3
M3
G3
F3
0
0
0
0
1
1
1
1
M(3) + ... +2
0
F(0). (Default FDAC = 127.)
0
0
1
1
0
0
1
1
OSC2
N10
M2
G2
N2
F2
0
0
1
1
0
0
1
1
Byte 04 (Default = 02)
0
M(0).
OSC1
0
1
0
1
0
1
0
1
(
M1
G1
N9
N1
F1
Default M = 2.)
0
1
0
1
0
1
0
1
OSC0
LSB
LSB
M0
G0
N8
N0
F0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0