ICM7372/7352/7332

with Serial Interface and Adjustable Output Offset

Rev. A10

ICmic reserves the right to change the specifications without prior notice.

7

IC MICROSYSTEMS

CONTENTS OF INPUT SHIFT REGISTER

ICM7372 (12-Bit DAC)

MSB

LSB

C3

C2

C1

C0

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

CONTROL WORD

DATA WORD

Figure 3. Contents of ICM7372 Input Shift Register

ICM7352 (10-Bit DAC)

MSB

LSB

C3

C2

C1

C0

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

X

X

CONTROL WORD

DATA WORD

X

X

Figure 4. Contents of ICM7352 Input Shift Register

ICM7332 (8-Bit DAC)

MSB

LSB

C3

C2

C1

C0

D7

D6

D5

D4

D3

D2

D1

D0

X

X

X

X

CONTROL WORD

DATA WORD

X

X

X

X

Figure 5. Contents of ICM7332 Input Shift Register

C3

C2

C1

C0

DATA (D11 – D0)

FUNCTION

0

0

0

0

Data

Load Input Latch DAC A

0

0

0

1

Data

Update DAC A

0

0

1

0

Data

Load Input Latch and Update DAC A

0

0

1

1

Data

Load Input Latch DAC B

0

1

0

0

Data

Update DAC B

0

1

0

1

Data

Load Input Latch and Update DAC B

0

1

1

0

X

No Operation

0

1

1

1

X

No Operation

1

0

0

0

X

No Operation

1

0

0

1

X

No Operation

1

0

1

0

X

No Operation

1

0

1

1

X

No Operation

1

1

0

0

Data

Load Input Latch All DACs

1

1

0

1

Data

Update DAC All DACs

1

1

1

0

Data

Load Input Latch and Update All DACs

1

1

1

1

X

No Operation

Table 1. Serial Interface Input Word