CDCM7005 datasheet(9/40 Pages) TI

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TYPICAL CHARACTERISTICS

VCXO_IN Input Frequency − MHz

110

130

150

170

190

210

230

250

450

650

850

1050

1250

1450

1650

1850

2050

VCC = 3.3 V

TA = 25°C

All Output Pairs Active (4 div-by-8 / 1 div-by-3)

All Output Pairs Active (div-by-1)

All Output Pairs Active (div-by-8)

∆ for div-by-2/4/8/16

One Output Pair Active (div-by-8)

∆ For 1 Output Pair

∆ For div-by-3/6

G001

No Output Active

CDCM7005

SCAS793A – JUNE 2005 – REVISED JUNE 2005

DEVICE CHARACTERISTICS (continued)

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP(1)

MAX

UNIT

PLL ANALOG LOCK

IOH

High-level output current

VCC = 3.6 V, VO = 1.8 V

–110

µA

IOL

Low-level output current

VCC = 3.6 V, VO = 1.8 V

110

µA

High-impedance state output current

IOZH LOCK

VO = 3.6 V (PD is set low)

µA

for PLL LOCK output(9)

High-impedance state output current

IOZL LOCK

VO = 0 V (PD is set low)

±5

µA

for PLL LOCK output(9)

VIT+

Positive input threshold voltage

VCC = min to max

VCC×0.55

VIT–

Negative input threshold voltage

VCC = min to max

VCC×0.35

PHASE DETECTOR

fCPmax

Maximum charge pump frequency

Default PFD pulse width delay

100

MHz

CHARGE PUMP

Charge pump sink/source current

ICP

VCP = 0.5 VCC_CP

±0.2

±3

range (10)

ICP3St

Charge pump 3-state current

0.5 V < VCP < VCC_CP– 0.5 V

VCP = 0.5 VCC_CP, internal reference

10%

resistor, SPI default settings

ICPA

ICP absolute accuracy

VCP = 0.5 VCC_CP, external reference

resistor 12 k

Ω (1%) at I_REF_CP, SPI

default settings

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

ICPM

Sink/source current matching

2.5%

settings

IVCPM

ICP vs VCP matching

0.5 V < VCP < VCC_CP– 0.5 V

(9)

Lock output has an 80-k

Ω pulldown resistor.

(10) Defined by SPI settings.

LVPECL SUPPLY CURRENT

NUMBER OF ACTIVE OUTPUTS

If div-by-2/4/8/16 is activated for one or more outputs, '

∆ for div-by-2/4/8/16' has to be added to I

CC of div-by-1. If

div-by-3 or div-by-6 is activated, '

∆ for div-by-2/4/8/16' and '∆ for div-by3/6' has to be added to I

CC of div-by-1.

Figure 1.

CDCM7005 Datasheet(PDF) 9 Page - Texas Instruments

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