SA9504 datasheet(7/22 Pages) PHILIPS

7 / 22 page

Philips Semiconductors

Preliminary specification

SA9504

Dual-band, PCS(CDMA)/AMPS

LNA and downconverter mixers

1999 Oct 28

DOWNCONVERTER

AC ELECTRICAL CHARACTERISTICS

VCC = 2.7 V; Tamb = 25°C, Plo= –3 dBm.

fRF = 881 MHz, fLO = 966.4 MHz, fIF = 85.4 MHz, output differential load of 850Ω for FM.

PARAMETER

TEST CONDITIONS

LIMITS

UNIT

PARAMETER

TEST CONDITIONS

MIN

–3

TYP

MAX

UNIT

Cellular band downconverter

RF input frequency range

869

894

MHz

LO input frequency range

950

1030

MHz

IF output frequency range

300

MHz

IF Output Load Impedance

Single-ended, with external balun

850

Ω

Conversion Gain

6.5

7.5

8.2

Noise Figure

Single sideband Noise Figure

Input IP3

P1, P2 = –24 dBm.

Tone spacing = 60 kHz

5.0

dBm

RF Input Return Loss

ZS=50Ω with external matching

11.0

LO Input Return Loss

ZS=50Ω

10.0

(Tx) LO Output Return Loss

ZS=50Ω

8.0

LO Input Power Range

–9

–6

dBm

(Tx) LO Output Power Range

ZL=50Ω single-ended; (Tx) LO buffer ON.

–6

–3

dBm

LO (Input and Output) to RF Leakage

Single-ended in, single-ended out.

–30

dBm

LO (Input and Output) to IF Leakage

Single-ended in, differential out.

–20

dBm

RF to LO (Input) Isolation

Single-ended in, single-ended out

RF to IF Isolation

Single-ended in, differential out

(Tx) LO Output to LO Input Isolation

Single-ended in, differential out

Leakage conversion gain

f1 = fRX ± 40 MHz at LNA input.

P1 = – 70 dBm.

Measured through conversion gain in

stop-band, without SAW filters being

connected. Ports terminated with 50

Ω.

–40

dBc

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