Datasheet

Factory Default Setting
3-2
3.1 Factory Default Setting
The EVM board is factory-configured to operate in unipolar 5-V output mode.
Table 3-1.DAC7574/DAC6574/DAC5574 EVM Factory Default Jumper Setting
DAC7574/DAC6574/DAC5574 EVM CONFIGURATION
Reference
Jumper
Position
Function
W1 2-3 Power supply for U1 is 5 VA.
W2 1-2 DAC output A (V
OUT
A) is routed to J4-2.
W3 OPEN U2 is configured as unity gain op-amp.
W4 2-3 SDA is routed to SDATA.
W5 1-2 Negative supply rail of U2 op-amp is supplied with V
SS.
W6 2-3 SCL is routed to SCLK.
W7 OPEN Address line, A1, is pulled high.
W8 OPEN Address line, A0, is pulled high.
W9 OPEN For I
2
C SDA bit-bang using the DSP
W10 OPEN For U4 use only
W11 1-2 DAC output B (V
OUT
B) is routed to J4-4.
W12 1-2 DAC output C (V
OUT
C) is routed to J4-6.
W13 1-2 DAC output D (V
OUT
D) is routed to J4-8.
W14 2-3 The 5 VD is routed for digital supply.
TP8 OPEN For U4 external V
REF
use only
TP9 OPEN For U4 use when tying V
DD
and V
REF
together
Table 3-2.DAC7571/DAC6571/DAC5571 EVM Factory Default Jumper Setting
DAC7571/DAC6571/DAC5571 EVM CONFIGURATION
Reference
Jumper
Position
Function
W1 2-3 Power supply for U8 is 5 VA.
W2 1-2 DAC output is routed to J4-2.
W3 OPEN U2 is configured as unity gain op-amp.
W4 2-3 SDA is routed to SDATA.
W5 1-2 Negative supply rail of U2 op-amp is supplied with V
SS.
W6 2-3 SCL is routed to SCLK.
W7 OPEN For U1 use only
W8 OPEN For U1 use only
W9 OPEN For I
2
C SDA bit-bang using the DSP
W10 OPEN For U4 use only
W11 1-2 For U1 use only
W12 1-2 For U! use only
W13 1-2 For U1 use only
W14 2-3 The 5 VD is routed for digital supply.
TP8 OPEN For U4 external V
REF
use only
TP9 OPEN For U4 use when tying V
DD
and V
REF
together