MB88346BPF datasheet(5/18 Pages) FUJITSU

Part #	MB88346BPF

Description	D/A Converter for Digital Tuning (12 channels. 8-bit, with OP amplifier)

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Manufacturer	FUJITSU [Fujitsu Component Limited.]

Direct Link	http://edevice.fujitsu.com/fmd/en/index.html

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MB88346B

5

■ DATA FOR CHIP CONTROL

1.

Data for Shift Register

• The chip is controlled by 12 bits of data input to the shift register.

• The shift register inputs a total of 12 bits of data consisting of a four-bit address selection signal and an eight-

bit D/A converter control signal.

• A data to the shift register is inputted to the DI pin in the order of D11 (MSB) to D0 (LSB) .

2.

D/A Converter Control Signal

VREF = VDD - VSS

Input data signal

D/A converter output voltage

D0

D1

D2

D3

D4

D5

D6

D7

00000000

≅ VSS

10000000

≅ VREF / 255 × 1 + VSS

01000000

≅ VREF / 255 × 2 + VSS

11000000

≅ VREF / 255 × 3 + VSS

01111111

≅ VREF / 255 × 254 + VSS

11111111

≅ VDD

D0

Last (LSB)

First (MSB)

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D/A converter control signal

Address selected signal

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MB88346BPF Datasheet(PDF) 5 Page - Fujitsu Component Limited.

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