LM9830 datasheet(4/45 Pages) NSC

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CRYSTAL IN, CRYSTAL OUT Characteristics

XTALOUT DC

CRYSTAL OUT Bias Level (Offset)

0.8

XTALOUT AC

CRYSTAL OUT Amplitude

fCRYSTAL = 50MHz

0.8

VP-P

Power Supply Characteristics

Analog Supply Current

(VA pins)

Operating

Standby

0.75

0.95

mA (max)

ID I/O

Digital I/O Supply Current

(VD I/O, VD, and VSRAM pins)

Operating

Standby

6.5

mA (max)

AC Electrical Characteristics

The following specifications apply for AGND=DGND=DGNDI/O=DGNDSRAM=0V, VA=VD=VDI/O=VSRAM=+5.0VDC,

fCRYSTAL IN= 50MHz, MCLK DIVIDER = 1.0 (unless otherwise noted), fMCLK = fCRYSTAL IN/MCLK DIVIDER, fADC CLK = fMCLK/8,

CL (databus loading) = 20pF/pin. Boldface limits apply for TA=TJ=TMIN to TMAX; all other limits TA=TJ=25°C. (Notes 7 & 8)

Symbol

Parameter

Conditions

Typical

(Note 9)

Limits

(Note 10)

Units

(Limits)

Parallel Port Address Write (Figure 1)

tSETUP1

D0-D7 (Address) valid to SELECT IN

falling

-60

-10

ns (min)

tSETUP2

STROBE falling edge to SELECT IN

falling

-15

-10

ns (min)

tSI-B1

SELECT IN falling to BUSY rising

ns (max)

tB-SI

BUSY rising to SELECT IN rising

ns (min)

tHOLD1

SELECT IN rising to STROBE rising

-45

-15

ns (min)

tSI-B2

SELECT IN rising to BUSY falling

ns (max)

tHOLD2

D0-D7 (Address) hold time after

BUSY falling

-10

ns (min)

Parallel Port Data Write (Figure 2)

tSETUP1

D0-D7 valid or STROBE falling to

SELECT IN falling

-60

-10

ns (min)

tSETUP2

STROBE falling to AUTOFEED falling

-25

-10

ns (min)

tAF-B1

AUTOFEED falling to BUSY rising

ns (max)

tB-AF1

BUSY rising to AUTOFEED rising

ns (min)

tHOLD1

AUTOFEED rising to STROBE rising

-40

-10

ns (min)

tAF-B2

AUTOFEED rising to BUSY falling

All Except Dataport

Dataport

1.5 tADC CLK

3 tADC CLK

ns (max)

tHOLD2

D0-D7 valid after BUSY falling

-10

ns (min)

DC and Logic Electrical Characteristics

The following specifications apply for AGND=DGND=DGNDI/O=DGNDSRAM=0V, VA=VD=VDI/O=VSRAM=+5.0VDC,

fCRYSTAL IN= 50MHz. Boldface limits apply for TA=TJ=TMIN to TMAX; all other limits TA=TJ=25°C. (Notes 7 & 8)

Symbol

Parameter

Conditions

Typical

(Note 9)

Limits

(Note 10)

Units

(Limits)

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