U2894B-AFSG3 datasheet(5/16 Pages) TEMIC

Part #	U2894B-AFSG3

Description	Modulation PLL for GSM, DCS and PCS Systems

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Manufacturer	TEMIC [TEMIC Semiconductors]

Direct Link	http://www.temic.de

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5 / 16 page

U2894B

Rev. A4, 30-Sep-98

5 (16)

Electrical Characteristics (continued)

Tamb = 25°C, VS = 2.7 to 5.5 V

Parameters

Test Conditions / Pin

Symbol

Min.

Typ.

Max.

Unit

Mixer (1900 MHz)

RF input level

0.5 to 2 GHz

P19RF

–23

–17

dBm

LO-spurious at

RF/NRF ports

@ P19MIXLO = –10 dBm

@ P19RF = –15 dBm

SP19RF

–40

dBm

MIXLO input level

0.05 to 2 GHz

P19MIXLO

–22

–12

dBm

MIXO (100

W load)

Output level 6)

@ P19MIXLO = –17 dBm

P19MIXO

55

mVrms

Carrier suppression

@ P19MIXLO = –17 dBm

CS19MIXO

–20

dBc

Charge-pump output CPO (VVSP = 5 V; VCPO = 2.5 V)

Pump-current pulse

CPC open for DC

| ICPO |

0.7

1

1.3

mA

pp

RCPC = 2.2 kΩ 7)

| ICPO 2 |

1.4

2

2.6

mA

PCPC = 680 Ω 7)

| ICPO_4 |

3

4

5

mA

TK pump current

Tk_| ICPC |

15

%/100

°K

Mismatch source / sink

current

(ICPOSI – ICPOSO)/ICPOSI

ICPOSO = Isourc

ICPOSI = Isink

MICPO

0.1

–

Sensivity to VSP

|

DI

CPO

I

CPO

|| D

VSP

|

SICPO

0.1

–

VCPO voltage range

VCPO

0.5

VVSP–0.6

V

Charge-pump control input CPC

Compensation capacitor

CCPC

500

pF

Short circuit current 8)

CPC grounded

| ICPCK |

1.6

mA

Mode control

Sink current

VMC = VS

IMC

60

mA

Power-up input PU (power-up for all functions, except mixer)

Settling time

Output power within 10%

of steady state values

SPU

5

10

ms

High level

Active

VPUH

2.4

V

Low level

Standby

VPUL

0

0.4

V

High-level current

Active, VPUH = 2.7 V

IPUH

0.26

mA

Low-level current

Standby, VPUL = 0.4 V

IPUL

–1

20

mA

Power-up input PUMIX (power-up for mixer only)

Settling time

Output power within 10%

of steady state values

tsetl

5

10

ms

High level

Active

VPUMIXH

2.4

VS2

V

Low level

Standby

VPUMIXL

0

0.4

V

High-level current

Active, VPUMIXH = 2.7 V

IPUMIXH

0.26

mA

Low-level current

Standby,

VPUMIXL = 0.4 V

IPUMIXL

–1

20

mA

6)

– 1 dB compression point (CP – 1)

7)

RCPC: external resistor to GND for charge–pump current control

8)

See figure 7.

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