Single-Chip, Multiband 3G Femtocell

Transceiver

ADF4602

Rev. 0

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FEATURES

Single-chip multiband 3G transceiver

3GPP 25.104 release 6 WCDMA/HSPA compatible

UMTS band coverage

Local area Class BS in Band 1 to Band 6 and Band 8 to

Band 10

Direct conversion transmitter and receiver

Minimal external components

Integrated multiband multimode monitoring

No Tx SAW or Rx interstage SAW filters

Integrated power management (3.1 V to 3.6 V supply)

Integrated synthesizers including PLL loop filters

Integrated PA bias control DACs/GPOs

WCDMA and GSM receive baseband filter options

Easy to use with minimal calibration

Automatic Rx DC offset control

Simple gain, frequency, mode programming

Low supply current

50 mA typical Rx current

50 mA to 100 mA Tx current (varies with output power)

6 mm × 6 mm 40-pin LFCSP package

APPLICATIONS

3G home basestations (femtocells)

3G repeaters

FUNCTIONAL BLOCK DIAGRAM

Tx_PWR_CONTROL

Tx_PWR_

CONTROL

TXBBIB

TXBBI

TXBBQ

TXBBQB

VSUP7

VSUP6

RXBBI

RXBBIB

VDD

RXLBRF

RXHB2RF

RXHB1RF

TXLBRF

RXBBQ

RXBBQB

Tx_PWR_CONTROL

Tx_PWR_

CONTROL

TXHBRF

LOOP

FILTER

Rx PLL

Rx_LO_LB

SELECTABLE BANDWIDTH

BASEBAND FILTERS

Rx_LO_LB

FRAC N

SYNTHE-

SIZER

LO GENERATOR

LOOP

FILTER

FRAC N

SYNTHE-

SIZER

LO GENERATOR

DC OFFSET

CORRECTION

SERIAL

INTER-

FACE

DC OFFSET

CORRECTION

Q

CHAN-

NEL

I

CHAN-

NEL

VSUP8

26MHz

19.2MHz

ADF4602

LDO2 LDO3 LDO4 LDO5

Tx PLL

LDO1

REFIN

Figure 1.