IBM3604012Q016
Datasheet
Dual-band CDMA Low Noise Amplifier
Features
Applications
• IBM’s integrated SiGe BiCMOS technology
• Single and dual mode CDMA and AMPS hand-
sets receiving in the Cellular 869-894MHz, and
PCS 1930-1990MHz bands
• CDMA / AMPS operation in the Cellular and
PCS receive bands
• Low noise/high linearity subsystems
• Low noise figure:
• 1.7B over Cellular band
• 1.9dB over PCS band
• Low power supply current drain:
• 10mA High linearity mode
• 5mA Low linearity mode
• <0.3mA Bypass mode
• <1µA Standby mode
• High input IP3: + 8dBm
• 22dB reverse isolation
• Integrated logic and bias control network
• Single-ended RF interface
QFN 16L Package
3.0mm x 3.0mm x 0.90mm
• Requires Single 2.75-volt power supply
Description
The IBM3604012Q016 Low Noise Amplifier (LNA) is
a monolithic device intended for CDMA and AMPS
wireless handsets operating in the Cellular and PCS
bands. The LNA is fabricated using IBM's Silicon
Germanium (SiGe) BiCMOS technology for low
noise, high gain and high linearity performance.
Each gain block is optimized for a single (cellular or
PCS) band of operation. The integrated logic and
bias control network facilitate band and gain selec-
tion. In addition, the device can operate in a high or
low linearity mode. The low linearity mode reduces
operating current and enables long battery life.
The monolithic LNA device consists of the following,
as shown in figure 1:
• Two high gain blocks with medium gain and
bypass switching options
• Logic and bias control network to support
switching options and operating modes
A bypass mode enables the device to handle strong
incoming signals with low current drain. A Standby
mode for power saving is also available.
The device is housed in a QFN 16 lead chip scale
package and requires off-chip passive components
for RF matching.
Figure 1. Block Diagram
Ordering information:
Cell _In
Control
Cell _Out
LNA
To order samples of the product or the Evaluation
board, please visit:
Logic
and
www.ibm.com/chips/support/howtobuy.html
Bias
Control
Part Number
Description
PCS_In
PCS _Out
LNA
IBM3604012Q016
CDMA Dual Band Low Noise Amplifier
IBM3604012EVBA Evaluation Board Assembly
Note: The LNA is susceptible to damage from electrostatic discharge
(ESD). Observe normal ESD precautions at all times when handling or
using the device.
January 15, 2002
Page 1 of 12
IBM [ IBM ]
