AK8122

Mar-09

MS0971-E-00

- 4 -

The brand name

of AKEMD’s IC’s

DC Characteristics

All specifications at VDD: over 1.7 to 1.9V, Ta=Ta1(AK8122V) Ta=Ta2(AK8122E)

Parameter

Symbol

Conditions

MIN

TYP

MAX

Unit

Input Current

Pin: CLKP, CLKN

-10

+10

μA

Differential Output

Reference Voltage

VOREF

Pin: OUTP, OUTN

0.5VDD

-0.1

0.5VDD

+0.1

V

AC Differential Output Voltage

(1)

VOAC

Pin: OUTP, OUTN

Output Load: Fig.1

0.5

VDD-0.4

V

High Level Output Voltage

Pin: OUTP, OUTN

VDD

-0.1

V

Low Level Output Voltage

Pin: OUTP, OUTN

0.1

V

Input Load Capacitance

Pin: CLKP, CLKN

2.1

pF

Input Load Capacitance error

Pin: CLKP, CLKN

0.1

pF

Current Consumption

(1)

(2)

50

mA

(1) See Fig.8 for output load reference.

(2) Output impedance of 60-ohm. No load. VDD = 1.8V, Ta = 25.

AC Characteristics

All specifications at VDD: over 1.7 to 1.9V, Ta: -20 to +85

℃, unless otherwise noted

(1) See Fig.1.

(2) See Fig.2.

(3) See Fig.3.

(4) See Fig.4.

(5) See Fig.8.

(6) A provisional target value.

Parameter

Symbol

Conditions

MIN

TYP

MAX

Unit

Output Frequency

160

400

MHz

Output Slew Rate

(5)

1

3

V/ns

Input Clock Duty Cycle

40

50

60

%

Delay Time

(1)

SFO + DFO + SKEW

250MHz-400MHz

-130

-30

+70

ps

Jit 1

Period, 1

σ, 190–360MHz

(2)

20

ps

Jit 2

Cycle-to-cycle, 1

σ, 190–360MHz

(3)

30

ps

Jit 3

Half Period, 1

σ, 190–250MHz

(4)

70

ps

Jit 4

Half Period, 1

σ, 250–300MHz

(4)

60

ps

Output Clock Jitter

Jit 5

Half Period, 1

σ, 300–360MHz

(4)

40

ps

Start up Time

(6)

200

us