MB88345PF FUJITSU [Fujitsu Component Limited.], MB88345PF Datasheet - Page 4

• Manufacturer Part Number: MB88345PF
• Description: D/A Converter for Digital Tuning (24-channel, 8-bit, on-chip OP amp)
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

4
MB88345
V
× : Don’t Care
REF
D0
D8
DATA CONFIGURATION
The MB88345 has a 14-bit shift register for chip control.
The 14-bit shift register must be used to set up data in the configuration shown below.
Note : The data configuration has a total of 14 bits, six for channel selection and eight for D/A data output.
• D/A converter control signals
• Channel selection signals
0
1
0
1
×
×
×
×
×
×
×
×
×
Last
LSB
V
D0
DD
D1
D9
0
0
1
1
0
0
0
1
1
1
1
1
1
V
SS
D1
Input data signal
D10
D2
0
0
1
1
0
0
0
0
1
1
1
1
1
D2
Input data signal
D/A output bits
D11
D3
D3
0
0
1
1
0
0
0
1
0
0
0
1
1
D4
D12
D4
0
0
1
1
0
0
1
1
0
0
1
1
1
D5
D13
D5
0
0
1
1
0
1
0
1
0
1
0
0
1
D6
Deselected
AO1 Selection
AO2 Selection
AO23 Selection
AO24 Selection
Deselected
D6
0
0
1
1
D7
D7
D8
0
0
1
1
: = V
: = V
: = V
: = V
D9
Channel selection
Channel selection bits
SS
REF
REF
DD
D/A converter output voltage
D10
255
255
D11
1
254
V
SS
V
D12
SS
D13
First
MSB