CDCM6208 datasheet(9/89 Pages) TI1

No de pièce	CDCM6208

Description	2:8 Clock Generator, Jitter Cleaner With Fractional Dividers

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Fabricant	TI1 [Texas Instruments]

Site Internet	http://www.ti.com

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CDCM6208

www.ti.com

SCAS931F – MAY 2012 – REVISED APRIL 2014

7.8

Single Ended Input Characteristics (SI_MODE[1:0], SDI/SDA/PIN1, SCL/PIN4,

SDO/ADD0/PIN2, SCS/ADD1/PIN3, STATUS1/PIN0, RESETN/PWR, PDN, SYNCN, REF_SEL)

DVDD = 1.71 V to 1.89 V, 2.375 V to 2.625 V, 3.135 V to 3.465 V, TA = -40°C to 85°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

0.8 x

VIH

Input High Voltage

V

DVDD

0.2 x

VIL

Input Low Voltage

V

DVDD

DVDD = 3.465V, VIH = 3.465 V (pull-

IIH

Input High Current

30

µA

up resistor excluded)

IIL

Input Low Current

DVDD = 3.465V, VIL= 0 V

-30

µA

PDN, RESETN, SYNCN, REF_SEL

ΔV/ΔT

20% - 80%

0.75

V/ns

Input Edge Rate

PDN, RESETN, SYNCN low pulse

minPulse

10

ns

to trigger proper device reset

C IN

Input Capacitance

2.25

pF

RESETN, PWR, SYNCN, PDN, REF_SEL, SI_MODE[1:0]

R

Input Pullup and Pulldown Resistor

35

50

65

k

Ω

SDA and SCL in I 2 C Mode (SI_MODE[1:0]=01)

DVDD = 1.8 V

0.1 VDVDD

V

VHYS_I2C

Input hysteresis

0.05

DVDD = 2.5/3.3 V

V

VDVDD

IH

High-level input current

VI = DVDD

-5

5

µA

0.2 x

VOL

Output Low Voltage

IOL= 3mA

V

DVDD

CIN

Input Capacitance pin

5

pF

7.9

Single Ended Input Characteristics (PRI_REF, SEC_REF)

VDD_PRI, VDD_SEC = 1.71 V to 1.89 V, 2.375 V to 2.625 V, 3.135 V to 3.465 V, TA = -40°C to 85°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VDD_PRI/SEC = 1.8 V

0.008

200

MHz

Reference and Bypass Input

fIN

Frequency

VDD_PRI/SEC = 3.3 V

0.008

250

MHz

0.8 x

VIH

Input High Voltage

VDD_PRI/

V

VDD_SEC

0.2 x

VIL

Input Low Voltage

VDD_PRI/

V

VDD_SEC

VHYST

Input hysteresis

20

65

150

mV

VDD_PRI/VDD_SEC = 3.465 V, VIH

IIH

Input High Current

30

µA

= 3.465 V

VDD_PRI/VDD_SEC = 3.465 V, VIL

IIL

Input Low Current

-30

µA

= 0 V

ΔV/ΔT

Reference Input Edge Rate

20% - 80%

0.75

V/ns

f PRI ≤ 200MHz

40%

60%

IDC SE

Reference Input Duty Cycle

200

≤ fPRI ≤ 250 MHz

43%

60%

C IN

Input Capacitance

2.25

pF

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