SMM205

Preliminary Information

Summit Microelectronics, Inc

2069 1.4 6/23/03

6

DC OPERATING CHARACTERISTICS (CONTINUED)

(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)

Symbol

Parameter

Notes

Min.

Typ.

Max

Unit

VREF

1.25VREF Output

Voltage

1.24

1.25

1.26

V

Range

0.25

VDD

V

External VREF=1.25V, ±0.1%

-0.2

+0.2

%

ADOC/Margin Accuracy

ADOC trimmed to internal VREF

-0.5

+0.5

%

AC OPERATING CHARACTERISTICS

(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)

Symbol

Parameter

Notes

Min.

Typ.

Max

Unit

Active DC Control

sampling period

Update period for Active DC

Control

1.7

ms

Settling Time

+ 10% change in voltage with

0.1% ripple

100

ms

Fast Margin, nom to high,

TRIM_CAP=1

µF

20

ms

Trim Speed

Slow Margin, nom to high,

TRIM_CAP=1

µF

200

ms