BU2505FV_15 Datasheet, PDF (2/22 Pages) Rohm – 10bit 8ch/10ch D/A Converters

BU2505FV BU2506FV
Pin Configurations
SSOP-B20
(TOP VIEW)
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
Pin Descriptions
No.
Terminal
Name
1
VSS
2
AO3
Analog /
Digital
I/O
BU2505FV
Description
BU2506FV
Analog - D/A converter lower reference voltage (VrefL) input terminal
Analog O 10bit D/A output(CH3)
Equivalent
circuit No.
6
4
3
AO4
Analog O 10bit D/A output(CH4)
4
4
AO5
Analog O 10bit D/A output(CH5)
4
5
REVERSE
Digital
I
Reverses the 10bit designated as data in the 14bit to select MSB
first or LSB first.^{(Note 1)}
2
6
RESET
Digital
I
Fixes the output voltage to the lower reference level for all
channels.
2
7
AO6
Analog O 10bit D/A output(CH6)
4
8
AO7
Analog O 10bit D/A output(CH7)
4
9
AO8
Analog O 10bit D/A output(CH8)
4
10
VDD
Analog - D/A converter upper reference voltage (VrefH) input terminal
5
11
VCC
-
- Power supply
-
12 AO9(TEST1) Analog O 10bit D/A output(CH9)
test terminal ^{(Note 2)}
4
13 AO10(TEST2) Analog O 10bit D/A output(CH10)
test terminal ^{(Note 2)}
4
14
DO
Digital O Outputs the LSB data of 14bit shift resister.
3
When the LD terminal is set to the high level voltage, 14bit data in
15
LD
Digital I the shift register is loaded on to the address decoder and a
1
specified D/A output register.
16
CLK
Digital
I
Shift clock input terminal. At the rising edge of the CLK input, an
input value on the DI terminal is input to the 14bit shift register.
1
17
DI
Digital
I
Serial data input terminal. Serial data length is 14bit (4bit address
and 10bit data).
1
18
AO1
Analog O 10bit D/A output(CH1)
4
19
AO2
Analog O 10bit D/A output(CH2)
4
20
GND
-
- GND terminal
-
(Note 1) 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 2) The TEST1 and TEST2 terminals of the BU2506FV should be left open. These terminals are used for testing.
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TSZ22111・15・001
2/18
TSZ02201-0RLR0GZ10140-1-2
11.Dec.2015 Rev.001