UMA1021 datasheet(8/16 Pages) PHILIPS

8 / 16 page

1998 Nov 19

Philips Semiconductors

Product speciﬁcation

Low-voltage frequency synthesizer for

radio telephones

UMA1021AM

Charge pump output; pin 2

Vo(compl)

compliance output voltage

Rset = 5.6 kΩ

0.4

−

VCC − 0.4 V

Io(err)

output current error

Rset = 5.6 kΩ−25

−

+25

Io(match)

sink-to-source current matching

Rset = 5.6 kΩ−

±5

−

leakage current

Rset = 5.6 kΩ;

charge pump off;

Vo(compl) = 1⁄2VCC

−5

±1+5

Phase noise

N900

RF synthesizer’s contribution to

close-in phase noise of 900 MHz

VCO signal inside the closed loop

bandwidth

fxtal = 13 MHz;

Vxtal = 0 dBm;

fph(comp) = 200 kHz

−−88

−

dBc/Hz

N1800

RF synthesizer’s contribution to

close-in phase noise of 1.8 GHz

VCO signal inside the closed loop

bandwidth

fxtal = 13 MHz;

Vxtal = 0 dBm;

fph(comp) = 200 kHz

−−82

−

dBc/Hz

Interface logic inputs; pins 7, 9, 10 and 11

VIH

HIGH-level input voltage

0.7VDD

−

VDD + 0.3 V

VIL

LOW-level input voltage

−0.3

−

0.3VDD

Ii(bias)

input bias current

logic 1 or logic 0

−5

−

µA

input capacitance

−

Out-of-lock detector output; pin 1

VOL

LOW-level output voltage

open-drain output

−−

0.3VDD

Eϕ(th)

threshold phase error

open-drain output

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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