SA9024 データシートの表示（PDF） - Philips Electronics

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SA9024

900 MHz transmit modulator and 1.3 GHz fractional–N synthesizer

Philips Electronics 

Philips Semiconductors

900 MHz transmit modulator and 1.3 GHz

fractional–N synthesizer

Objective specification

SA9024

Current output variation versus VPH

VPH Charge pump voltage compliance

VPHS in compliance range

–25

0.5

25

%

VCC–0.5

V

AC ELECTRICAL CHARACTERISTICS

VCC = +3.75 V; TA = 25°C; unless otherwise stated.

SYMBOL

PARAMETER

TEST CONDITIONS

Modulator

TXLO 1/2

Transmit LO input (AC-coupled; 50Ω

single-ended, 100Ω differential)

VSWR

TANK1/2 VCO tank differential inputs

÷M PLL offset divider

XTAL1

XTAL2

XO

Osc. transistor base

Osc. transistor emitter

Negative resistance

RCLK,

MCLK

Reference buffer output

Frequency range

Output levels

Harmonic content

TXEN Transmit enable

Q/Q

I/I

Baseband in-phase differential inputs

TXRF

DUALTX

DUALTX

DUALTX

DUALTX

DUALTX

TXRF operating range

DUAL output SE=1, TXEN=1 (with

external matching) (50Ω)

Differential output, (DUALTX)

open-collector, matched to 200Ω

differential impedance

Linearity worst case intermod. products

(0dB VGA OR +6 dBm, whichever is

less, I & Q in-phase)

Carrier suppression

(I & Q in quadrature)

Sideband suppression

(I & Q in quadrature)

DUALTX Spurious output

DUALTX TXLO up-conversion products

DUALTX

DUALTX

DUALTX

Broad-band noise (0dB VGA or +6 dBm,

whichever is less)

Adjacent channel noise power

Alternate channel noise power

Input power

Frequency range

Frequency range

Maximum input frequency

Osc. frequency

Osc. frequency

ZLOAD = 5kΩ| | 7 pF

Transmit enable

Transmit disable

Maximum frequency

Diff. mod. level

Diff. input impedance

DC bias point

AMPS/DAMPS

Output level (avg. min., I and Q

quad., 0dB VGA)

Gain flatness

3rd-order

5th-order

7th-order

VGA = 0dB

VGA = -38dB

2 to 284 MHz

824 to 849 MHz

849 to 869 MHz

869 to 894 MHz

894 to 8490 MHz

TXLO

Upper Side Band

TXLO ±3 × TXOFFSET

Harmonics ≤ 10th

869 to 894 MHz

@ 30 kHz

@ 60 kHz

MIN

-13

900

90

180

10

10

10

0.7

1.8

0.8

10.0

1.8

820

820

+6.0

LIMITS

TYP

2:1

–100

1.0

TXEN = 1

TXEN = 0

0.9

VCC/2

+10

1

-42

-55

-65

-45

-33

-45

MAX

-10

1100

180

40

40

40

1.4

–10

1.0

2.55

920

853

+13.5

-30

-45

-53

-30

-32

-45

-47

-45

-104

-45

-21

–21

-36

-21

-123

-95

–101

UNITS

dBm

MHz

MHz

MHz

MHz

MHz

W

MHz

VP–P

dBc

Logic

MHz

VP-P

kΩ

V

MHz

MHz

dBm

dB

dBc

dBc

dBc

dBc

dBm

dBc

dBc

dBm/Hz

dBc/Hz

dBc/Hz

1997 Aug 01

7

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