ICS8430S07AKI REVISION A SEPTEMBER 3, 2009

8

©2009 Integrated Device Technology, Inc.

ICS8430S07I Data Sheet

CLOCK GENERATOR FOR CAVIUM PROCESSORS

AC Electrical Characteristics

NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is

mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium

has been reached under these conditions.

NOTE 1: Refer to the phase noise plot.

NOTE 2: Defined as skew within a bank of outputs at the same supply voltage and with equal load conditions.

NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltage and with equal load conditions. Using

NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Output Frequency

QA/nQA

DDR_SEL[1:0] = 00

133.333

MHz

QA/nQA

DDR_SEL[1:0] = 01

100

MHz

QA/nQA

DDR_SEL[1:0] = 10

83.333

MHz

QA/nQA

DDR_SEL[1:0] = 11

125

MHz

QB

CORE_SEL = 0

50

MHz

QB

CORE_SEL = 1

33.333

MHz

QC

PCI_SEL[1:0] = 00

133.333

MHz

QC

PCI_SEL[1:0] = 01

100

MHz

QC

PCI_SEL[1:0] = 10

66.667

MHz

QC

PCI_SEL[1:0] = 11

33.333

MHz

QD

125

MHz

QREF[0:2]

25

MHz

tsk(b)

Bank Skew;

NOTE 2, 4

QREF[0:2]

35

ps

tsk(pp)

Part-to-Part Skew;

NOTE 3, 4

QREF[0:2]

400

ps

tjit(cc)

Cycle-to-Cycle Jitter;

NOTE 4, 5

QB, QC,

270

ps

QA/nQA

measured at crosspoint

95

ps

QD

200

ps

tjit(per)

Period Jitter (pk-pk);

NOTE 4

QA/nQA

measured at crosspoint

-90

90

ps

tjit(hper)

Half-period Jitter

(pk-pk)

QA/nQA

measured at crosspoint

-90

90

ps

tjit(Ø)

RMS Phase Jitter,

(Random); NOTE 1

QREF[0:2]

25MHz (10kHz to 5MHz)

0.73

ps

QD

125MHz (1.875MHz to 20MHz)

0.78

ps

Output

Rise/Fall Time

QB

20% to 80%

100

450

ps

QA/nQA

100

300

ps

QC, QREF[0:2]

100

450

ps

QD

100

450

ps

odc

Output Duty Cycle

QA/nQA

49

51

%

QB, QC, QD,

QREF[0:2]

45

55

%