548G-05 Просмотр технического описания (PDF) - Integrated Device Technology

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548G-05

T1/E1 CLOCK MULTIPLIER

Integrated Device Technology 

ICS548-05

T1/E1 CLOCK MULTIPLIER

CLOCK SYNTHESIZER

Parameter

Short Circuit Current

Input Capacitance

Frequency Synthesis Error

Symbol Conditions

IOS CLK output

MSEL, PDCLK,

REFEN

Both selections

Min.

Typ.

±50

7

Max.

Units

mA

pF

0

ppm

AC Electrical Characteristics

Unless stated otherwise, VDD = 3.3 V, Ambient Temperature 0 to +70° C

Parameter

Symbol

Conditions

Min.

Input Crystal or Clock

Frequency

Output Clock Rise Time

Output Clock Fall Time

Output Clock Rise Time

tOR 20% to 80%

tOF 80% to 20%

tOR

20% to 80%,

TA = -40 to +85° C

Output Clock Fall Time

tOF

80% to 20%,

TA = -40 to +85° C

Output Clock Duty Cycle

Start-up Time

tOD At VDD/2

40

VDD = 3.3 V to CLK

stable

Maximum Absolute Jitter,

short term

Maximum Absolute Jitter,

short term

TA = -40 to +85° C

One Sigma Jitter

Typ.

1.544 or

2.048

50

±100

±150

25

Max.

1.5

1.5

1.7

1.7

60

10

Units

MHz

ns

ns

ns

ns

%

ms

ps

ps

ps

Thermal Characteristics

Parameter

Symbol Conditions

Thermal Resistance Junction to

Ambient

θJA Still air

θJA 1 m/s air flow

θJA 3 m/s air flow

Thermal Resistance Junction to Case θJC

Min.

Typ.

78

70

68

37

Max.

Units

° C/W

° C/W

° C/W

° C/W

IDT® T1/E1 CLOCK MULTIPLIER

5

ICS548-05 REV D 091511

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