DAC37J82_16 Datasheet, PDF (68/122 Pages) Texas Instruments – Digital-to-Analog Converters

DAC37J82, DAC38J82
SLASE16B – JANUARY 2014 – REVISED MAY 2014
Register
Name
config11
Addr
(Hex)
0xB
Table 42. Register Name: config11 – Address: 0x0B, Default: 0x0000
Bit Name
15:13 reserved
12:0 qmc_offsetd
Function
Reserved
The DAC D offset correction. The offset is measured in DAC LSBs
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Default
Value
000
0x0000
Register
Name
config12
Addr
(Hex)
0xC
Table 43. Register Name: config12 – Address: 0xC, Default: 0x0400
Bit Name
15 reserved
14 reserved
13 reserved
12 reserved
11 reserved
10:0 gmc_gaina
Function
Reserved
Reserved
Reserved
Reserved
Reserved
The quadrature correction gain A for DACAB path. The decimal point for
the multiplication is just left of bit9. This word is treated as unsigned so the
range is 0 to 1.9990. LSB=0.0009766
Default
Value
0
0
0
0
0
0x400
Register
Name
config13
Addr
(Hex)
0xD
Table 44. Register Name: config13 – Address: 0xD, Default: 0x0400
Bit Name
15 fs8
14 fs4
13 fs2
12 fsm4
11 reserved
10:0 qmc_ gainb
Function
These bits turn on the different coarse mixing options. Combining the
different options together can result in every possible n*Fs/8 [n=0->7].
Below is the valid programming table:
cmix=(fs8, fs4, fs2, fsm4)
0000 : no mixing
0001 : -fs/4
0010 : fs/2
0100 : fs/4
1000 : fs/8
1100 : 3fs/8
1010 : 5fs/8
1110 : 7fs/8
Reserved
The quadrature correction gain B for DAC AB path. The decimal point for
the multiplication is just left of bit9. This word is treated as unsigned so
the range is 0 to 1.9990. LSB=0.0009766.
Default
Value
0
0
0
0
0
0x400
Register
Name
config14
Addr
(Hex)
0xE
Table 45. Register Name: config14 – Address: 0x0E, Default: 0x0400
Bit Name
15 reserved
14 reserved
13 reserved
12 reserved
11 reserved
10:0 gmc_gainc
Function
Reserved
Reserved
Reserved
Reserved
Reserved
The quadrature correction gain A for DACCD path. The decimal point for
the multiplication is just left of bit9. This word is treated as unsigned so the
range is 0 to 1.9990. LSB=0.0009766.
Default
Value
0
0
0
0
0
0x400
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