Silicon Motion FC7712A User Manual
Fc7712a, Escription, Pplications
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