SM8707 datasheet(9/20 Pages) NPC

9 / 20 page

SM8707 series

NIPPON PRECISION CIRCUITS INC.—9

SM8707F

fXTAL = 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 40 to + 85 °C unless otherwise noted.

Parameter

Symbol

Pins

Condition

Rating

Unit

min

typ

max

External input clock

frequency1

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the

absolute maximum rating, otherwise damage may occur.

fXTI

XTI

Applies to external clock input use only

–

27.0000

–

MHz

Output clock rise time2

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

MO1, SO1,

SO2

CL = 25 pF, transition between VOL =

0.2VDD and VOH = 0.8VDD

–

2.0

–

AO1, AO2

CL = 15pF, transition between

VOL = 0.2VDD and VOH = 0.8VDD

–

2.0

–

Output clock fall time2

MO1, SO1,

SO2

CL = 25pF, transition between VOH =

0.8VDD and VOL = 0.2VDD

–

2.0

–

AO1, AO2

CL = 15pF, transition between

VOH = 0.8VDD and VOL = 0.2VDD

–

2.0

–

Output clock jitter3

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

tjitter

(1-sigma)

MO1

Ta = 25

°C, CL = 25pF, VO = 0.5VDD

–20–

SO1, SO2

–

AO1, AO2

Ta = 25

°C, CL = 15pF, VO = 0.5VDD

–40–

Output clock duty cycle2

MO1, SO1,

SO2

Ta = 25

°C, CL = 25pF, VO = 0.5VDD

AO1, AO2

Ta = 25

°C, CL =15 pF, VO = 0.5VDD

Settling time2

All outputs

excluding XTO

––1

µs

Power-up time2, 4

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches

± 0.1% of the speciﬁed frequency.

All outputs

excluding XTO

–15

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