RF2456
6
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 DOWNCONVERTER
Product Description
The RF2456 is a receiver dual downconverter designed
for the receive section of dual-mode CDMA/FM cellular
applications. It is designed to downconvert RF signals
while providing 13dB gain in CDMA mode, and 7dB gain
in FM mode. It also features digital control of IF output
selection and power down mode. 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-16.
0.157
0.150
0.012
0.008
0.196
0.189
0.025
-A-
0.0098
0.0040
6
0.0688
0.0532
0.2440
0.2284
8擄 MAX
0擄MIN
0.050
0.016
0.0098
0.0075
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding mold flash.
3. Lead coplanarity - 0.005 with respect to datum "A".
Optimum Technology Matching廬 Applied
!
Si BJT
Package Style: SSOP-16
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Si Bi-CMOS
Features
鈥?Dual Mode CDMA/AMPS
鈥?Dual Mode JCDMA/TACS
鈥?Digitally Selectable IF Outputs
鈥?500MHz to 1100MHz Operation
鈥?Power Down Mode
VCC 1
FM- 2
FM+ 3
GND 4
CDMA+ 5
CDMA- 6
IF SELECT 7
PD 8
16 GND
15 GND
14 GND
13 BYP
12 MIXER IN
11 GND
10 LO-
9 LO+
Ordering Information
RF2456
RF2456 PCBA
CDMA/FM Downconverter
Fully Assembled Evaluation Board
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 B5 001002
6-1
MIXERS