ISDB-T 1-Segment Tuner
I 2 C Read/Write Addresses
The MAX2163 I 2 C read/write addresses are C1/C0.
See Table 2 for details.
Table 2. MAX2163 I 2 C Write Addresses
DEVICE
ADDRESS
C0
C1
ADDRESS
TYPE
WRITE
READ
D7
1
1
D6
1
1
D5
0
0
D4
0
0
D3
0
0
D2
0
0
D1
0
0
D0
0
1
Table 3. IF Filter Register
BIT NAME
BIT LOCATION
(0 = LSB)
DEFAULT
FUNCTION
Sets the IF filter center frequency. This filter ’s center frequency is trimmed at the
factory, but can be manually adjusted by setting the FLTS bit and programming
the TUN[2:0] bits as follows:
000 - 0.75 x f IF (Not factory tested.)
001 - 0.84 x f IF (Not factory tested.)
TUN[2:0]
7, 6, 5
011
010 - 0.92 x f IF (Not factory tested.)
011 - f IF (571kHz)
100 - 1.08 x f IF (Not factory tested.)
101 - 1.16 x f IF (Not factory tested.)
110 - 1.25 x f IF (Not factory tested.)
111 - 1.33 x f IF (Not factory tested.)
Selects which registers set low-IF bandpass filter center frequency and
FLTS
4
0
bandwidth.
0 = Selects internal factory set register.
1 = Selects manual trim register TUN[2:0] (Not factory tested).
IFL[1:0]
3, 2
01
Set the bias current for the low-IF circuits to provide for fine linearity adjustments.
Program to 01 upon power-up.
Sets the IF power detector bandwidth.
00 = 43MHz bandwidth.
PDBW[1:0]
1, 0
11
01 = 26MHz bandwidth.
10 = 17MHz bandwidth.
11 = 13MHz bandwidth.
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