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Product Description
Ordering Information
Typical Applications
Features
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching® Applied
Si BJT
GaAs MESFET
GaAs HBT
Si Bi-CMOS
SiGe HBT
Si CMOS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
FM-
FM+
GND
CDMA+
CDMA-
IF SELECT
PD
GND
GND
GND
BYP
MIXER IN
GND
LO-
LO+
RF2456
CDMA/FM DOWNCONVERTER
• CDMA/FM Cellular Systems
• Supports Dual-Mode AMPS/CDMA
• Supports Dual-Mode TACS/CDMA
• General Purpose Downconverter
• Commercial and Consumer Systems
• Portable Battery-Powered Equipment
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 7 dB 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.
• Dual Mode CDMA/AMPS
• Dual Mode JCDMA/TACS
• Digitally Selectable IF Outputs
• 500MHz to 1100MHz Operation
• Power Down Mode
RF2456
CDMA/FM Downconverter
RF2456 PCBA
Fully Assembled Evaluation Board
6
Rev B6 010717
0.157
0.150
0.025
0.012
0.008
0.196
0.189
0.2440
0.2284
0.0688
0.0532
0.050
0.016
0.0098
0.0075
8° MAX
0°MIN
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding mold flash.
3. Lead coplanarity - 0.005 with respect to datum "A".
-A-
0.0098
0.0040
Package Style: SSOP-16
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