SA8028W データシートの表示（PDF） - Philips Electronics

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SA8028W

2.5 GHz sigma delta fractional-N / 760 MHz IF integer frequency synthesizers

Philips Electronics 

Philips Semiconductors

2.5 GHz sigma delta fractional-N /

760 MHz IF integer frequency synthesizers

Product data

SA8028

CHARACTERISTICS

VDDCP = VDD = VDDpre= +3.0 V, Tamb = +25°C; unless otherwise specified.

SYMBOL PARAMETER

CONDITIONS

Supply

VDD,

VDDpre

VDDCP

IDDTotal

Digital supply voltage, prescaler supply voltage VDD = VDDpre

Charge pump supply voltage

Synthesizer operational total supply current

VDDCP ≥ VDD, VDDpre

fREF = 20 MHz

(with RF on, IF on)

(with RF on, IF off)

IDDsleep

Total supply current in power-down mode

RF divider input

logic levels 0 or VDD

fRFin

VRFin

RF VCO input frequency range

AC-coupled input signal level

Rin (external) = Rs = 50 Ω;

single-ended drive;

max. limit is indicative

@ 500 to 2500 MHz

ZRFin

Input impedance Re (Z)

CRFin

Typical pin input capacitance

NRF

RF divider ratio ranges

FCOMPmax Maximum phase comparator frequency

IF divider input

fRFin = 2.4 GHz

fRFin = 2.4 GHz

Limited test coverage

RF phase comparator

fIFin

VIFin

Input frequency range

AC-coupled input signal level

fIFin: 100 MHz to 500 MHz

Rin (external) = RS = 50 Ω;

max. limit is indicative

fIFin: 500 MHz to 760 MHz

Rin (external) = RS = 50 Ω;

max. limit is indicative

ZFin

Input impedance Re (Z)

CFin

Typical pin input capacitance

NIF

IF division ratio

Reference divider input

fRFin = 500 MHz

fRFin = 500 MHz

fREFin

VREFin

Input frequency range from TCXO

AC-coupled input signal level

single-ended drive;

max. limit is indicative

ZREFin

Input impedance Re (Z)

CREFin

Typical pin input capacitance

RREF

Reference division ratio

Charge pump current setting resistor input

fREF = 20 MHz

fREF = 20 MHz

SA = ”000”, IF loop

RSET

External resistor from pin to ground

VSET

Regulated voltage at pin

Charge pump outputs; RSET = 7.5 kΩ

ICP

Charge pump current ratio to ISET1

IMATCH

IZOUT

Sink-to-source current matching

Output current variation versus VPH2

ILPH

Charge pump off leakage current

VPH

Charge pump voltage compliance

RSET = 7.5 kΩ

Current gain = IPH/ISET

VPH = 1/2 VDDCP

VPH in compliance range

VPH = 1/2 VDDCP

MIN.

2.7

2.7

–

–

–

500

–15

112

–

–

33

–

100

–15

112

–10

200

–

–

128

5

360

–

–

4

6

–

–15

–10

–10

–10

0.6

TYP.

–

–

7.6

6.4

0.1

–

–

–

300

1

–

–

–

–

–

–

–

3.9

0.5

–

–

–

10

1

–

7.5

1.22

–

–

–

–

–

MAX.

UNIT

3.6

V

3.6

V

–

mA

–

mA

1

µA

2500

0

632

–

–

509

30

MHz

dBm

mVpp

Ω

pF

MHz

760

0

632

0

632

–

–

16383

MHz

dBm

mVpp

dBm

mVpp

kΩ

pF

30

1300

–

–

1023

MHz

mVPP

kΩ

pF

15

kΩ

–

V

+15

%

+10

%

+10

%

+10

nA

VDDCP–0.7 V

2002 Feb 22

6

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