DAC3484_14 Datasheet, PDF (43/90 Pages) Texas Instruments – Quad-Channel, 16-Bit, 1.25 GSPS Digital-to-Analog Converter (DAC)

DAC3484
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Register name: config32 – Address: 0x20, Default: 0x2400
SLAS749C – MARCH 2011 – REVISED AUGUST 2012
Register
Name
config32
Address
0x20
Bit
15:12
Name
syncsel_fifoin(3:0)
11:8 syncsel_fifoout(3:0)
7:1 Reserved
0
clkdiv_sync_sel
Function
Selects the syncing source(s) of the FIFO input side. A ‘1’ in the bit enables the
signal as a sync source. More than one sync source is permitted.
MM Bit 15: sif_sync (via config31)
MM Bit 14: Always zero
MM Bit 13: FRAME
MM Bit 12: SYNC
Selects the syncing source(s) of the FIFO output side. A ‘1’ in the bit enables the
signal as a sync source. More than one sync source is permitted.
MM Bit 11: sif_sync (via config31)
MM Bit 10: OSTR – Dual Sync Sources Mode
MM Bit 9: FRAME – Single Sync Source mode
MM Bit 8: SYNC – Single Sync Source mode
Reserved for factory use.
Selects the signal source for clock divider synchronization.
clkdiv_sync_sel
Sync Source
0
OSTR
1
FRAME or SYNC, based on syncsel_fifoin source
selection (config32, bit<15:12>)
Register name: config33 – Address: 0x21, Default: 0x0000
Default
Value
0010
0100
0000
0
Register
Name
config33
Address
0x21
Bit
15:0
Name
Reserved
Reserved for factory use.
Register name: config34 – Address: 0x22, Default: 0x1B1B
Function
Default
Value
0x0000
Register
Name
config34
Address
0x22
Bit
15:14
13:12
11:10
9:8
7:6
5:4
3:2
1:0
Name
pathA_in_sel(1:0)
pathB_in_sel(1:0)
pathC_in_sel(1:0)
pathD_in_sel(1:0)
DACA_out_sel(1:0)
DACB_out_sel(1:0)
DACC_out_sel(1:0)
DACD_out_sel(1:0)
Function
Selects the word used for the A channel path.
Selects the word used for the B channel path.
Selects the word used for the C channel path.
Selects the word used for the D channel path.
Selects the word used for the DACA output.
Selects the word used for the DACB output.
Selects the word used for the DACC output.
Selects the word used for the DACD output.
Default
Value
00
01
10
11
00
01
10
11
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