Datasheet
DAC3484
www.ti.com
SLAS749C –MARCH 2011–REVISED AUGUST 2012
Register name: config41 – Address: 0x29, Default: 0x1A1A
Register
Default
Address Bit Name Function
Value
Name
config41 0x29 15:0 iotest_pattern4 Dataword4 in the IO test pattern. It is used with the seven other words to test the input data. 0x1A1A
Register name: config42 – Address: 0x2A, Default: 0x1616
Register
Default
Address Bit Name Function
Value
Name
config42 0x2A 15:0 iotest_pattern5 Dataword5 in the IO test pattern. It is used with the seven other words to test the input 0x1616
data.
Register name: config43 – Address: 0x2B, Default: 0xAAAA
Register
Default
Address Bit Name Function
Value
Name
config43 0x2B 15:0 iotest_pattern6 Dataword6 in the IO test pattern. It is used with the seven other words to test the input 0xAAAA
data.
Register name: config44 – Address: 0x2C, Default: 0xC6C6
Register
Default
Address Bit Name Function
Value
Name
config44 0x2C 15:0 iotest_pattern7 Dataword7 in the IO test pattern. It is used with the seven other words to test the input 0xC6C6
data.
Register name: config45 – Address: 0x2D, Default: 0x0004
Register
Default
Address Bit Name Function
Value
Name
config45 0x2D 15 reserved Reserved for factory use 0
14 ostrtodig_sel When set, the OSTR signal is passed directly to the digital block. This is the signal that 0
is used to clock the dividers.
13 ramp_ena When set, a ramp signal is inserted in the input data at the FIFO input. 0
12:1 Reserved Reserved for factory use. 0000
0000
0010
0 sifdac_ena When set, the DAC output is set to the value in sifdac(15:0) in register config48. 0
Register name: config46 – Address: 0x2E, Default: 0x0000
Register
Default
Address Bit Name Function
Value
Name
config46 0x2E 15:8 grp_delayA(7:0) Sets the group delay function for DACA. The maximum delay ranges from 30ps to 0x00
100ps and is dependent on DAC sample clock. Contact TI for specific application
information.
7:0 grp_delayB(7:0) Sets the group delay function for DACB. The maximum delay ranges from 30ps to 0x00
100ps and is dependent on DAC sample clock. Contact TI for specific application
information.
Register name: config47 – Address: 0x2F, Default: 0x0000
Register
Default
Address Bit Name Function
Value
Name
config47 0x2F 15:8 grp_delayC(7:0) Sets the group delay function for DACC. The maximum delay ranges from 30ps to 0x00
100ps and is dependent on DAC sample clock. Contact TI for specific application
information.
7:0 grp_delayD(7:0) Sets the group delay function for DACD. The maximum delay ranges from 30ps to 0x00
100ps and is dependent on DAC sample clock. Contact TI for specific application
information.
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