CS5466

8

DS659F1

SWITCHING CHARACTERISTICS

•

Min / Max characteristics and specifications are guaranteed over all operating conditions.

•

Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.

•

VA+ = 5 V ±5% VD+ = 3.3 V ±5% or 5 V ±5%; AGND = DGND = 0 V. All voltages with respect to 0 V.

•

Logic Levels: Logic 0 = 0 V, Logic 1 = VD+.

12. Oscillator start-up time varies with crystal parameters. This specification does not apply when using an external

clock source.

13. Pulse output timing is specified at MCLK = 4.096 MHz. Current and voltage signals are at unity power factor. See

”Energy Pulse Outputs” on page 11. for more information on pulse output pins.

14. Timing is proportional to the frequency of MCLK.

15. When FREQ2 = 0, FREQ1=1 and FREQ0=1, FOUT will have a typical pulse width of 20

µs at MCLK = 4.096 MHz.

Parameter

Symbol

Min

Typ

Max

Unit

Rise Times

Digital Output (Note 11)

-50-

ns

Fall Times

Digital Output (Note 11)

-50-

ns

Start-up

Oscillator Start-up Time

XTAL = 4.096 MHz (Note 12)

-60-

ms

E1 and E2 Timing (Note 13 and 14)

Period

500

-

-

ms

Pulse Width

250

-

-

ms

Rising Edge to Falling Edge

250

-

-

ms

E1 Falling Edge to E2 Falling Edge

250

-

-

ms

FOUT Timing (Note 13 and 14)

Period

0.10

ms

Pulse Width

(Note 15)

90

ms

FOUT Low

-ms

E1

E2

FOUT

t

1

t

2

t

3

t

5

t

6

t

4

t

7

t

3

t

1

t

2

Figure 1. Timing Diagram for E1, E2 and FOUT (Not to Scale)