UMA1015MSLASHC2 datasheet(8/24 Pages) PHILIPS

8 / 24 page

1995 Jun 22

Philips Semiconductors

Product speciﬁcation

Low-power dual frequency synthesizer

for radio communications

UMA1015M

CHARACTERISTICS

VDD1 =VDD2 = 2.6 to 5.5 V; VCC = 2.6 to 6.0 V; Tamb =25 °C; unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply; (VDD1, VDD2 and VCC) voltage doubler disabled, external supply on VCC

VDD1, VDD2 digital supply voltage

VDD1 =VDD2

2.6

−

5.5

IDD1 + IDD2

total digital supply current

from VDD1 and VDD2

fXTAL = 12.8 MHz;

both synthesizers on;

VDD1 =VDD2 =3V

−

8.5

−

fXTAL = 12.8 MHz;

both synthesizers on;

VDD1 =VDD2 = 5.5 V

−−

12.5

IDDpda,

IDDpdb

total digital supply current

from VDD1 and VDD2 with

one synthesizer in

power-down mode

fXTAL = 12.8 MHz; one

synthesizer powered down;

VDD1 =VDD2 =3V

−

5.5

−

fXTAL = 12.8 MHz; one

synthesizer powered down;

VDD1 =VDD2 = 5.5 V

−−

7.5

IDDpd

digital supply current in

power-down mode

both synthesizers powered

down; VHPD =0V

−−

µA

VCC

charge pump supply

voltage

VCC ≥ VDD

2.6

−

6.0

ICC

charge pump supply

current

both synthesizers on and in

lock; fref = 12.5 kHz

−−

µA

ICCpd

charge pump supply

current in power-down

mode

both synthesizers powered

down

−−

µA

Voltage doubler enabled

IDD

total digital supply current

from VDD1 and VDD2

fXTAL = 12.8 MHz; both

synthesizers on and in lock;

VDD1 =3V;

fdoubler = 16 MHz

−

8.5

IDDpd

total digital supply current

in power-down mode from

VDD1 and VDD2

both synthesizers powered

down; VDD1 =3V;

VHPD =0V

−

0.25

0.4

VCCvd

charge pump supply

voltage

DC current drawn from

VCC =50 µA

2VDD1 − 1.2 2VDD1 − 0.6 6.0

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