TLC5620CN 参数 Datasheet PDF下载

TLC5620C, TLC5620I

QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS081E – NOVEMBER 1994 – REVISED NOVEMBER 2001

CLK

tsu(DATA-CLK)

tv(DATA-CLK)

DATA

A1

A0

RNG

D7

D6

D5

D4

D3

D2

D1

D0

tsu(LOAD-LDAC)

LOAD

tw(LDAC)

LDAC

DAC Update

Figure 2. LDAC-Controlled Update

CLK Low

CLK

DATA

A1

A0

RNG

D7

D6

D5

D4

D3

D2

D1

D0

LOAD

LDAC

Figure 3. Load-Controlled Update Using 8-Bit Serial Word (LDAC = Low)

CLK Low

CLK

DATA

A1

A0

RNG

D7

D6

D5

D4

D3

D2

D1

D0

LOAD

LDAC

Figure 4. LDAC-Controlled Update Using 8-Bit Serial Word

Table 2 lists the A1 and A0 bits and the selection of the updated DACs. The RNG bit controls the DAC output

range. When RNG = low, the output range is between the applied reference voltage and GND, and when

RNG = high, the range is between twice the applied reference voltage and GND.

Table 2. Serial Input Decode

A1

0

0

1

1

A0

0

1

0

1

DAC UPDATED

DACA

DACB

DACC

DACD

4

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265

ÎÎÎÎ

ÎÎÎ

ÎÎÎ

ÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎÎ