PRELIMINARY DATA SHEET
ECM011
Dual Mode Cellular Band CDMA
3.5V POWER AMPLIFIER MODULE
Features
Cellular Band CDMA/AMPS
Quiescent Current Control
Single 3.5V Supply for 3-Cell Ni or Li-Ion Battery
31.5dBm AMPS Power with 48% Efficiency
28dBm CDMA Power with 35% Efficiency
16dBm CDMA Power with 9% Efficiency
Features
Power-Down Capability
Temperature Compensation Circuit for Icq
Applications
3.5V CDMA/AMPS Cellular Handsets
Description
The ECM011 is a power amplifier module at 3.5V Vcc with high efficiency. This device was developed using EiC鈥檚 own
InGaP Heterojunction Bipolar Transistor (HBT) process. It is optimized for cellular CDMA (digital) in the 824MHz to 849MHz
band. It operates from a positive voltage (3.2 - 4.2V Vcc) and includes a power-down feature. The input and output are both
matched to 50鈩? It is housed in a 6 X 6 mm Land Grid Array package. A proprietary temperature compensated bias circuit
provides nearly a constant Icq from -40擄C to +85擄C in the low power mode. A Q control pin switches the quiescent current
to 50mA for low output power range.
Electrical Specifications
Test Conditions: Ta = 25 C, V
CC
= +3.5 V, V
REF / PD
(reference / power-down voltage) = +2.9 V, F = 824 to 849MHz
SYMBOL
PARAMETER
MIN.
LIMITS
TYP.
MAX.
UNIT
TEST CONDITION
o
Frequency
824
Gain (CDMA Modulation)
26
29
Output Power (CDMA)
28
Adjacent Channel Power Rejection
-48
Alternate Channel Power Rejection
-60
Power Added Efficiency (CDMA) @ 28.0dBm
30
35
Power Added Efficiency (CDMA) @ 16.0dBm
9
Output Power (AMPS)
31.5
Power Added Efficiency (AMPS)
48
Output Load Stability 6:1 All Phase Angles
Tolerance for output VSWR Mismatch
10:1
Quiescent Current (No RF)
I
C Q
50
Quiescent Current (No RF)
I
C Q
100
Leakage Current Vcc = 3.5V, Vref = 0V
3
Vref/pd Supply Current
Ipd
1
Supply Voltage
V
ref /pd
2.9
Supply Voltage
V
cc
3.2
3.5
Vq Voltage (High Power Mode)
Vq
0.0
Vq Voltage (Low Power Mode)
Vq
2.0
2.8
Input Return Loss
IRL
10
Noise Figure
NF
4.5
Noise Power
-135
Harmonics, 2f, 3f, 4f
Power Down On/Off Time
T
ON/OFF
<100
Switching time between output power levels
6
T
hi/Low
NOTE 1: Using Application Schematic. Tuned for CDMA.
NOTE 2: @ 885KHz offset from band center, Pout
鈮?/div>
28dBm, High/Low mode
NOTE 3: @ 1980KHz offset from band center, Pout
鈮?/div>
28dBm, High/Low mode
F
G
P
ACPR
Alt CPR
PAE
PAE1
P
SAT
PAE
849
-46
-56
-60
65
140
10
MHz
dB
dBm
dBc
dBc
%
%
dBm
%
dBc
mA
mA
uA
mA
V
V
V
V
dB
dB
dBm/Hz
dBc
ns
usec
NOTE 1
NOTE 2
NOTE 3
High Power Mode
Low Power Mode
No Damage
Low Power Mode
High Power Mode
4.2
0.8
6.0
-40
EiC
Corp.
A Subsidiary of
EiC
Enterprises, Ltd.
45738 Northport Loop West, Fremont, CA 94538
Phone: (510) 979-8999
Fax: (510) 979-8902
www.eiccorp.com
SS-000398-000
Revision D
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