343MPT 参数 Datasheet PDF下载

ICS343

FIELD PROGRAMMABLE TRIPLE OUTPUT SS VERSACLOCK SYNTHESIZER

EPROM CLOCK SYNTHESIZER

AC Electrical Characteristics

Unless stated otherwise,

VDD = 3.3V ±5%,

Ambient Temperature -40 to +85° C

Parameter

Input Frequency

Output Frequency

Output Rise Time

Output Fall Time

Duty Cycle

Output Frequency Synthesis

Error

Power-up time

Symbol

F

IN

Conditions

Fundamental Crystal

Input Clock

Min.

5

2

0.25

Typ.

Max. Units

27

50

200

MHz

MHz

MHz

ns

ns

60

%

ppm

10

2

ms

ms

t

OR

t

OF

20% to 80%, Note 1

80% to 20%, Note 1

Note 2

Configuration Dependent

PLL lock time from

power-up, Note 3

PDTS goes high until

stable CLK output, Spread

Spectrum Off, Note 3

PDTS goes high until

stable CLK output, Spread

Spectrum On, Note 3

40

1

1

49-51

TBD

4

0.2

4

7

ms

One Sigma Clock Period Jitter

Maximum Absolute Jitter

Note 1: Measured with 15 pF load.

t

ja

Configuration Dependent

Deviation from Mean.

Configuration Dependent

50

+200

ps

ps

Note 2: Duty Cycle is configuration dependent. Most configurations are minimum 45% and maximum 55%.

Note 3: ICS test mode output occurs for first 170 clock cycles on CLK3 for each PLL powered up.

Thermal Characteristics

Parameter

Thermal Resistance Junction to

Ambient

Symbol

θ

JA

θ

JA

θ

JA

θ

JC

Conditions

Still air

1 m/s air flow

3 m/s air flow

Min.

Typ.

150

140

120

40

Max. Units

°C/W

°C/W

°C/W

°C/W

Thermal Resistance Junction to Case

IDT™ / ICS™

FIELD PROGRAMMABLE TRIPLE OUTPUT SS VERSACLOCK SYNTHESIZER 6

ICS343

REV J 061206