CDCE72010 datasheet(8/70 Pages) TI

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AC/DC CHARACTERISTICS

CDCE72010

SCAS858 – JUNE 2008...................................................................................................................................................................................................... www.ti.com

over the specified industrial temperature range of –40°C to 85°C

PARAMETER

TEST CONDITIONS

MIN

TYP(1)

MAX

UNIT

SPI Output (MISO) / PLL Digital (Output Mode)

IOH

High-level output current

VCC = 3.3 V

VO = 1.65 V

–30

IOL

Low-level output current

VCC = 3.3 V

VO = 1.65 V

High-level output voltage

VOH

VCC = 3 V

IOH = –100 µA

VCC–0.5

for LVCMOS outputs

Low-level output voltage

VOL

VCC = 3 V

IOL = 100 µA

0.3

for LVCMOS outputs

Output capacitance on

VCC = 3.3 V; VO = 0 V or VCC

MISO

IOZH

3-state output current

µA

VO= VCC

VO= 0V

IOZL

3-state output current

–5

µA

PLL Analog (Input Mode)

High-impedance state

IOZH LOCK

output current for PLL

VO = 3.3 V (PD is set low)

µA

LOCK output (2)

High-impedance state

IOZL LOCK

output current for PLL

VO = 0 V (PD is set low)

–22

µA

LOCK output

Positive input threshold

VT+

VCC = min to max

VCC × 0.55

voltage

Negative input threshold

VT–

VCC = min to max

VCC × 0.35

voltage

VBB

VCXO termination voltage

depends on the settings

IBB = –0.2mA

VBB

0.9

1.9

of the VCXO/AUX_IN

Depending on the setting

input buffers

Input Buffers Internal Termination Resistors (VCXO_IN,PRI_REF and SEC_REF)

Termination resistance(3)

Single ended

Ω

Phase Detector

Maximum charge pump

fCPmax

Default PFD pulse width delay

100

MHz

frequency

Charge Pump

Charge pump 3-state

ICP3St

0.5 V < VCP < VCC_CP – 0.5 V

current

ICPA

ICP absolute accuracy

VCP = 0.5 VCC_CP; internal reference resistor

VCP = 0.5 VCC_CP; external reference resistor

ICPA

ICP absolute accuracy

12k

Ω (1%)

Sink/source current

0.5 V < VCP < VCC_CP – 0.5 V, SPI default

ICPM

matching

settings

IVCPM

ICP vs VCP matching

0.5 V < VCP < VCC_CP – 0.5 V

Voltage on STATUS PIN

12-k

Ω resitor to GND

VI_REF_CP

when configured as

(External current path for accurate charge

1.24

I_REF_CP

pump current)

(1)

All typical values are at VCC = 3.3 V, TA = 25°C.

(2)

160-k

Ω pull-down resistor

(3)

Termination resistor can vary by 20%.

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