SI4212 Silicon, SI4212 Datasheet

SI4212

Manufacturer Part Number

SI4212

Description

Aero IIe Transceiver

Manufacturer

Silicon

Datasheet

1.SI4212.pdf (2 pages)

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Description

The Aero® IIe transceiver is a complete RF front end for

multi-band

communications. The receive section interfaces between

the RF band-select SAW filters and the baseband

processor. The transmit section interfaces between the

baseband processor and the power amplifier and uses a

unique dual-transmitter architecture for EDGE. In GMSK

mode, the offset phase locked loop (OPLL) is modulated by

the I and Q signals. In 8-PSK mode, the OPLL is

unmodulated and acts as a local oscillator (LO) to the

direct upconversion mixer. All functions traditionally

performed by sensitive components such as VCOs, loop

filters, tuning inductors, and varactors are integrated into

the integrated circuit (IC). The Aero IIe transceiver includes

completely integrates the reference oscillator and varactor

functions. The Aero IIe digital low-IF receiver architecture

provides inherent suppression of dc offsets, preventing the

need

calibration, or related baseband support.

Aero IIe

digitally-controlled

for

GSM,

1800

1900

1800

1900

850

900

850

900

offset

GPRS,

crystal

RAMPOUT

compensation,

RFIA

RFIG

RFID

RFIP

RFOH

RFOL

oscillator

and

LNA

CTRL

DVGA

Aero IIe Transceiver for GSM, GPRS, and EDGE

EDGE

(DCXO)

manufacturing

0 / 90

wireless

PGA

and

VCO + FREQUENCY

SYNTHESIZER

Features

- 5 x 6 mm 36-pin QFN

- Highly integrated transceiver supports both GMSK

- Integrated digitally-controlled crystal oscillator

- Analog baseband interface

- Class 12 compliant for GPRS and EDGE

- 3-wire serial control interface

- 2.7 to 3.0 V operation

Applications

- Multi-band GSM/GPRS/EDGE cellular handsets

- Multi-band GSM/GPRS/EDGE data modems

ADC

DET

AVGA

and 8-PSK modulation

(DCXO)

CMOS process technology

and smart phones

Unique dual-transmitter architecture

Integrated frequency synthesizer including all VCOs

and loop filters

Digital low-IF receiver including digital filter

Quad-band LNAs

LOW-IF

XTAL1

PGA

DCXO

XTAL2

Si4212

RAMPIN

XOUT

AFC

9.16.05

Related parts for SI4212

SI4212 Summary of contents

Page 1

... VCO + FREQUENCY PA SYNTHESIZER CTRL Copyright © 2005 by Silicon Laboratories Si4212 - Unique dual-transmitter architecture - Integrated frequency synthesizer including all VCOs and loop filters - Digital low-IF receiver including digital filter - Quad-band LNAs Si4212 PGA PGA LOW-IF DCXO XTAL1 XTAL2 I Q RAMPIN XOUT AFC 9.16.05 ...

Page 2

... RFIDP 21 RFIPN 20 RFIPP 19 PDN 18 Dimension MIN NOM MAX A 0.80 0.85 0.90 A1 0.00 0.02 0.05 b 0.18 0.23 0.30 c 0.20 0.25 0.30 D 5.00 BSC D2 3.20 3.30 3.40 e 0.50 BSC Copyright © 2005 by Silicon Laboratories Si4212 Min Typ Max 869 — 894 925 — 960 1805 — 1880 1930 — 1990 — 2.1 — — 2.3 — — 2.4 — — ...

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