RF2406
8
Typical Applications
鈥?CDMA/FM Cellular Systems
鈥?Supports Dual-Mode AMPS/CDMA
鈥?Supports Dual-Mode TACS/CDMA
鈥?General Purpose Downconverter
鈥?Commercial and Consumer Systems
鈥?Portable Battery Powered Equipment
CDMA/FM LOW NOISE AMPLIFIER/MIXER
D
F2
E
44
S
9
&
IG
R
F2
N
46
S
.157
.150
.032
1
Product Description
.010
.004
N
ro
du
E
ct
W
Optimum Technology Matching廬 Applied
R
.050
.016
.010
.008
!
Si BJT
Package Style: SSOP-28
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Si Bi-CMOS
Features
鈥?Complete Receiver Front-End
鈥?Stepped LNA Gain Control
鈥?Low Current-Drain 鈥淟azy鈥?Mode
鈥?Buffered LO Output
鈥?Digitally Selectable IF Outputs
鈥?500MHz to 1100MHz Operation
N
S
ee
O
T
U
IF1+ 8
IF1- 9
pg
FO
ra
de
R
d
LNA IN 1
GND1 2
VCC1 3
VCC2 4
IF2- 5
28 GND3
27 GND4
26 LNA OUT
25 GND5
24 GND6
23 GND7
22 BYP
IF2+ 6
GND2 7
21 MIX IN
20 GND8
19 LO IN-
18 GND9
C1 10
C2 11
C3 12
C4 13
P
CONTROL
LOGIC
17 LO OUT
16 GND11
15 LO IN+
Ordering Information
RF2406
RF2406 PCBA
CDMA/FM Low Noise Amplifier/Mixer
Fully Assembled Evaluation Board
PD 14
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev B8 000822
8-13
FRONT-ENDS
The RF2406 is a receiver front-end designed for the
receive section of dual-mode CDMA/FM cellular applica-
tions. It is designed to amplify and down-convert RF sig-
nals while providing 30dB of stepped gain control range
and features digital control of LNA gain, IF output selec-
tion, LO buffer enable, power down mode, and low current
鈥渓azy鈥?mode. The digitally selected 鈥渓azy鈥?mode reduces
current drain by approximately 10mA, putting the IC in a
lower current drain, noise and IP3 state. This gives the
receiver designer added flexibility to dynamically optimize
these downconverter parameters. Noise Figure, IP3, and
other specs are designed to be compatible with the IS-95
Interim Standard for CDMA cellular communications. The
IC is manufactured on an advanced Silicon Bipolar pro-
cess and packaged in an SSOP-28.
.012
.008
.386
.402
.025
.244
.228
1
.069
.053
8擄MAX
0擄MIN
8
s
1
2
3
4
5
6
7
8
9
10
