BU2505FV_15 Datasheet, PDF (8/22 Pages) Rohm – 10bit 8ch/10ch D/A Converters

BU2505FV BU2506FV
Command Transmission
1) REVERSE = open (or VCC short-circuit) setting^{(Note 7)}
(1) Data format
D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
F_D/o_Ar_コD_ン/_バA_ーc_タo_　nv_出e_力rt_設e_定r o_用utput setting
Fアorドaレddスr選es択s 用selection
(2) Data timing diagram
DI
CLK
LD
DACOUT
ADDRESS
LSB
D0 D1
ADDRESS DATA
MSB
LSB
D2 D3 D4
DATA
MSB
D11 D12 D13
D3 D2 D1 D0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
Address Selection
n/a
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
AO9 ^{(Note 8)}
AO10 ^{(Note 8)}
n/a
n/a
n/a
n/a
n/a
D13 D12 D11 D10 D9 D8 D7 D6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
:
:
:
:
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2) REVERSE = L setting^{(Note 7)}
(1) Data format
D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D3 D2 D1 D0
FoDr/ADコ/ンAバcーoタn　ve出r力te設r 定ou用tput setting
Forアaドddレrスes選s 択se用lection
(2) Data timing diagram
DI
CLK
LD
DACOUT
ADDRESS
LSB
D0 D1
ADDRESS DATA
MSB
MSB
D2 D3 D13
DATA
LSB
D6 D5 D4
D5
0
0
1
1
:
1
1
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D4
0
1
0
1
:
0
1
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D/A output (VrefH=VDD, VrefL=VSS)
VrefL
(VrefH-VrefL)/1024×1+VrefL
(VrefH-VrefL)/1024×2+VrefL
(VrefH-VrefL)/1024×3+VrefL
:
(VrefH-VrefL)/1024×1022+VrefL
(VrefH-VrefL)/1024×1023+VrefL
D1 D0
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
Address selection
n/a
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
AO9 ^{(Note 8)}
AO10 ^{(Note 8)}
n/a
n/a
n/a
n/a
n/a
D4
D5
D6
D7
D8 D9 D10 D11 D12 D13 D/A output (VrefH=VDD, VrefL=VSS)
0
0
0
0
0
0
0
0
0
0
VrefL
1
0
0
0
0
0
0
0
0
0 (VrefH-VrefL)/1024×1+VrefL
0
1
0
0
0
0
0
0
0
0 (VrefH-VrefL)/1024×2+VrefL
1
1
0
0
0
0
0
0
0
0 (VrefH-VrefL)/1024×3+VrefL
:
:
:
:
:
:
:
:
:
:
:
0
1
1
1
1
1
1
1
1
1 (VrefH-VrefL)/1024×1022+VrefL
1
1
1
1
1
1
1
1
1
1 (VrefH-VrefL)/1024×1023+VrefL
(Note 7) It is selectable for the IC to receive 10bit data in LSB first order or MSB first order, depending on the condition of the REVERSE terminal. If the
REVERSE terminal is set to the GND voltage, it is MSB first
(Note 8) In the BU2506FV, this channel is for testing. Therefore, it must not be selected.
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TSZ22111・15・001
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TSZ02201-0RLR0GZ10140-1-2
11.Dec.2015 Rev.001