CHP1237 Datasheet, PDF (1/12 Pages) ANADIGICS, Inc – KPCS CDMA InGaP HBT Amplifier

FEATURES
• Small Profile (3 x 3 x 1 mm)
• PFT^TM 50 Ω Matched Module
• High Linearity of -50 dBc
• High PAE of 39%
• InGaP HBT Technology
• Low Quiescent Current of 55 mA
• Single Positive Supply Voltage
APPLICATIONS
• Korean PCS CDMA handsets
CHP1237
KPCS CDMA
InGaP HBT Amplifier Module
PRELIMINARY DATA SHEET - Rev 1.5
M12 Package
9 Pin 3 x 3 x 1 mm
Surface Mount Module
PRODUCT DESCRIPTION
CHP1237 is an InGaP HBT amplifier module
offering high performance for PCS CDMA wireless
handsets. It consists of a two-stage amplifier, 50 Ω
matching network for both input and output, and a
bias control circuit. It is packaged in a 3 x 3 x 1 mm
package using proprietary Passive-Free Technology
(PFT)^TM. The package provides excellent electrical
stability and low thermal resistance.
VCC
C6
C5
C4
2.7µF
220pF
27pF
1
9
RFIN
2
8
CHP1237
3
7
VREF2
4
5
6
C7
1nF
VREF1
C8
1nF
Figure 1: Block Diagram
08/2004
RFOUT