Silicon Motion FC7712A User Manual

Fc7712a, Escription, Pplications

Advertising
background image

FC7712A

Direct-conversion Wireless Transceiver IC for

Cellular-band CDMA EVDO with VCXO

FCI Confidential and Proprietary Information

1 / 18

Last Update Jan/14/2013

Data can be changed without prior notice

Future
Communications
Integrated circuit Inc.

D

ESCRIPTION

FC7712A is a cellular-band CDMA RF-to-

baseband transceiver IC of FCI’s zipRF™ family. It

is a highly integrated chip working with a single

power supply. Because zero-IF architecture is used

for FC7712A, additional components such as bulky

IF SAW filters and other IF matching components

are no longer required. 3-wired serial-to-parallel

interface (SPI) protocol enables FC7712A operate

in various modes. FC7712A contains complete

single-band receiver path such as LNA, down-

conversion mixer, channel selection filter (CSF), Rx

VCO, Rx PLL, and LO distribution block. FC7712A

also integrates VCXO (voltage controlled crystal

oscillator) and only requires low-cost external

crystal oscillator. FC7712A integrated varactor for

VCXO operation with external 19.2MHz crystal with

low current consumption. FC7712A also contains

complete transmitter path such as baseband

amplifier, up-converter, RF variable-gain block,

drive amplifier, Tx VCO, Tx PLL, and LO distribution

block. FC7712A is available in 6 x 6mm 48-pin QFN

package.

A

PPLICATIONS

-

Single-band CDMA EVDO mobile phone

R

EVISION

H

ISTORY

-

Preliminary version: Jan, 21, 2011

-

Preliminary version: Feb, 01, 2011

-

Preliminary version: Feb, 28, 2011

-

Preliminary version: Apr, 05, 2011

-

Preliminary version: June, 29, 2012

-

Preliminary version: July, 06, 2012

-

Preliminary version: Jan, 14, 2013

F

EATURES

 Complete transceiver for Cellular CDMA for

EVDO applications with VCXO

 Low noise and highly linear LNA, mixer,

and CSF for cellular CDMA

 Low noise, highly linear, wide dynamic range

transmitter with baseband amplifier, up-

converter, drive amplifier

 Automatic DC-offset calibration, filter

calibration, VCO calibration

 Fully integrated low phase noise Rx, and

Tx VCO and Fractional-N PLL with fine

frequency resolution

 Fully integrated low-phase noise VCXO

which requires external low-cost crystal

and offers 32kHz clock to the modem

 Support 3-wired serial interface protocol

 6 x 6mm, 48pin, QFN package

B

LOCK

D

IAGRAM

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

36

35

34

33

32

31

30

29

28

27

26

25

48

47

46

45

44

43

42

41

40

39

38

37

CLNA_IN

RX_IP

RX_IM

RX_QP

RX_QM

OSC_EN

VDD_CTRL

TX_RBIAS

VC

DA_OUT

AFC

VREG_DCXO

XO_INM

XO_INP

VDD_RXPLL

LOCK

TX_ON

SPCK

CSF

CSF

LO Generation

& Distribution

RX PLL

TX PLL

FC7712A

RX

VCO

TX

VCO

LO Generation

& Distribution

Power, Voltage,

Tempature

Compensation

Gain Control

CLNA_BIAS

XO_OUT

NC

BURN(GND)

GND

REG

SPI

GND

For latest specifications, technical questions and additional product information, visit website or e-mail

FCI Inc.

11

th

Floor, Kins Tower, 25-1

Website: http://www.fci.co.kr

Jeongja-Dong, Bundang-Gu,

E-mail: [email protected]

Sungnam City, Gyunggi-do,

Phone: 82-31-711-6444

463-811, KOREA

Fax: 82-31-711-0313

Advertising