3236 Scott Boulevard
Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
CHP0232-PM
Features
InGaP HBT Technology
6mm Square, 50 Ohm Power Module Package
Single Positive Supply
35% Linear Power Added Efficiency
+28.5 dBm Output Power (CDMA Mode)
29 dB Gain at Operating Output Power
On-Board Power Down Mode
7 dB Gain Control via Vmode
Applications
Cellular Multi-Mode Handsets
Cellular Infrastructure
Wireless Local Loop Subscriber Units
CDMA Handsets
CDMA2K 1X Handsets
Description
The CHP0232-PM is a 50 ohm matched, single sup-
ply, linear power amplifier module intended for use in cellular
handsets and wireless local loop subscriber units. The highly
integrated amplifier meets the requirements of CDMA and
CDMA2K 1X systems. It is a member of Celeritek's new
TrueTriangleTM family of 3V power amplifier modules.
The CHP0232-PM is packaged in a low-cost, space
efficient, 6mm square, matched module that provides excellent
electrical stability and low thermal resistance. The module
operates from a fixed positive voltage and requires no external
matching which significantly reduces space, cost and enhances
ease of use. The device features 7 dB of gain control via an
integrated attenuator.
The 6x6 mm package is self contained, incorporating
50 ohm input and output matching networks optimized for
output power, linearity and efficiency.
Celeritek's InGaP HBT technology offers a thermally
robust and reliable PAM (power amplifier module) solution.
824 to 849 MHz
28.5 dBm, Cellular
InGaP HBT Amplifier Module
Preliminary Product Information
July 2002
(1 of 8)
Functional Block Diagram
Application Information
The CHP0232-PM is a two-stage amplifier that requires a
single regulated positive supply along with the unregulated bat-
tery voltage for proper operation. Vref is a regulated 2.95 refer-
ence voltage for the bias control circuitry. It can also be used as
a power down mode select. Vcc is an unregulated supply volt-
age directly from the battery. Vcc should be applied prior to
Vref and before RF input power. Vmode is a control voltage
selection between high and low gain mode. The CHP0232-PM
can be operated over a range of supply voltages and bias points
by adjustment of Vref. It is important that the maximum power
dissipation of the package be observed at all times and that the
maximum voltage across the device is not exceeded.
Circuit Design Considerations
Biasing The positive Vcc supply voltages are applied to pins
1 and 6. Most bypass decoupling is provided on-board. Vref is
applied to pin 3.
The recommended DC bypass capacitance is shown in the
schematic diagram on Page 8.
Inadequate bypass capacitance and inductance around the
DC supply lines can compromise the adjacent channel power
ratio (ACPR), reduce power gain and/or create oscillations.
Continued on Page 2
TM
Absolute Maximum Ratings
Parameter
Rating
Parameter
Rating
Parameter
Rating
Collector Voltage (+Vcc)
+4.5 V*
Reference Voltage (Vref)
+3.1 V
Operating Temperature
-40C to +85C
Collector Current (Icc)
1.2 A
Power Dissipation
5 W
Storage Temperature
-65C to +150C
RF Input Power (High Mode) 7 dBm
V Mode
+3.1 V
Soldering Temperature
260C for 5 Sec.
RF Input Power (Low Mode) 13 dBm
Recommended Operating Conditions
Parameter
Typ
Units
Parameter
Typ
Units
Collector Voltage (+Vcc)
3.2 to 4.1
Volts
Operating Temperature (PC Board)
-20 to +70
C
Reference Voltage (Vref)
+2.95 (1.1%)
Volts
Mode Control Voltage (Vmode)
High
3.0 (5%)
V
(Fixed and regulated)
Low
<1.2
V
* RF Off.
Vcc 1
RF IN 2
Vref 3
6 Vcc
5 RF OUT
4 V Mode
Ground connection is
on backside
BIAS
3236 Scott Boulevard, Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
CHP0232-PM
Preliminary Product Information - July 2002
(2 of 8)
Parameter
Condition
Min
Typ
Max
Units
Frequency Range
824
849
MHz
Gain
Pout = 28.5 dBm
Vmode = High
28
29
dB
Vmode = Low
21
22
dB
Gain Ripple*
824-849 MHz
1.0
dB
Gain Variation
Over supply voltage
2
dB/V
Over temperature
0.03
dB/C
Power Output
CDMA mode
+28.5
dBm
Harmonics
2nd @ Po = +28.5 dBm
-30
dBc
3rd @ Po = +28.5 dBm
-30
dBc
Noise Power in Receive Band
30 kHz bandwidth
-90
dBm
Linearity (ACPR)
CDMA mode @ +28.5 dBm Pout, 885 kHz offset
-52
-48
dBc/30kHz
+28.5 dBm Pout, 1.98 MHz offset
-60
-56
dBc/30 kHz
CDMA2K 1X** @ +28.0 dBm Pout, 885 kHz offset
-52
-48
dBc/30 kHz
CDMA2K 1X** @ +28.0 dBm Pout, 1.98 MHz offset
-61
-56
dBc/30 kHz
Noise Figure
5.0
dB
Input Return Loss
-10
dB
Efficiency
Pout = +28.5 dBm - CDMA
38
%
Positive Supply Current (Icc)
Pout CDMA (12 dBm)
105
115
mA
Pout CDMA (28.5 dBm)
535
560
mA
Quiescent Current (Iq)
No RF
75
mA
Vref Supply Current (Iref)
2.0
5.0
mA
Vref Supply Voltage (Vref)
Fixed and regulated (1.2% tolerance)
2.95
V
Vmode
Vmode = Low
0.1
0.4
V
Vmode
Vmode = High
2.85
3.0
3.15
V
Imode
Vmode = High
400
800
A
Leakage Current
Vref = 0V, Vcc = 3.5V
10
A
Electrical Characteristics
Unless otherwise specified, the following specifications are guaranteed at room temperature with collector voltage (+Vcc) = 3.5 V.
* Specifications guaranteed over the temperature range of -20C to +70C. ** Modulation HPSK in 1.2288 MHz, RC3 PAR = 4.7 @ 1% CCDF.
Modulation When biased as specified, the CHP0232-PM will
achieve the required adjacent channel response for the digital
system specified. Celeritek tests each product under digital
modulation to ensure correlation to customer applications.
Thermal
1. The ground pad on the backside of the CHP0232-PM must
be soldered to the ground plane.
2. All leads of the package must be soldered to the appropriate
electrical connection.
Physical Dimensions and PCB Footprint
Contact the factory for detailed information and dimensions of
HBT power module package and recommended printed circuit
board footprint.
Continued from Page 1
TM
3236 Scott Boulevard
Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
CHP0232-PM
Preliminary Product Information - July 2002
(3 of 8)
TM
CDMA 1xRTT
In 1999 the International Telecommunications Union
specified five different IMT-2000 standards colloquially known
as Third Generation (3G) mobile phone services. Besides the
WCDMA standard used by NTT Ducomo in Japan, the most
important other 3G technology is Qualcomm's CDMA2000.
CDMA2000 is available in several subsets, the first two of
which are now in commercial operation.
CDMA2000 1xRTT roughly doubles a network voice
capacity compound to the original CDMA One
Technology. It also enables packet data transfers at up to
307 KB/s on a single 1.25 MHz carrier.
CDMA2000 1xEV provides up to 2.4 MB/s packet data
transfers on a single 1.25 MHz carrier in its current "data
only" Phase 1 (1xEV-DO) version. Phase 2 (1xEV-DV)
will provide up to 4.8 MB/s of integrated voice and data
communications
CDMA 3x will operate on newly licensed 5 MHz carriers
and will potentially offer 3 times the number of voice and
date channels, or higher data rates.
First launched in South Korea, operators in the United
States and elsewhere are expected to migrate to CDMA2000
1xRTT in 2002.
The rapid progression from 2nd generation
CDMAOne to CDMA2000 is an evolutionary migration.
Service operators have the option to implement CDMA2000
1xRTT at their existing 1.25 MHz frequency bands. In this case
the RF section of both the mobile phone and base station
remains the same. But there are significant changes in the chan-
nel configuration which ultimately creates a need for additional
linearity within the Power Amplifier Module. The major influ-
ence of the multi-channel configuration is a change in the Code
Complementary Distribution Function (CCDF) commonly
referred to as the peak-to-average ratio (PAR).
The handset re-use channel configuration is shown in
Figure 1. Reverse Channel Configuration Details Traffic
Channels Defined. The parameters of each channel as detailed
and interpreted from the CDMA2000 standard is detailed in
Figure 2. Channel Configurations as Set Up in ESG Signal
Source.
REVERSE CDMA CHANNEL
(1.25 MHZ OR 5 MHZ CHANNEL RECEIVED BY BASE STATION
ACCESS
CHANNEL
REVERSE
TRAFFIC
CHANNEL
(RC 1 OR 2)
ENHANCED
ACCESS
CHANNEL
OPERATION
REVERSE
COMMON
CONTROL
CHANNEL
OPERATION
REVERSE
TRAFFIC
CHANNEL
OPERATION
(RC 3 TO 6)
REVERSE
FUNDAMENTAL
CHANNEL
0 TO 7 REVERSE
SUPPLEMENTAL
CODE CHANNELS
REVERSE
PILOT
CHANNEL
ENHANCED
ACCESS
CHANNEL
REVERSE
PILOT
CHANNEL
REVERSE
COMMON
CONTROL CHANNELS
REVERSE
PILOT
CHANNEL
0 TO 1 REVERSE
DEDICATED
CONTROL CHANNELS
0 TO 1 REVERSE
FUNDAMENTAL
CHANNEL
0 TO 1 REVERSE
DEDICATED
CONTROL CHANNELS
REVERSE
POWER CONTROL
SUBCHANNEL
Figure 1. Reverse Channel Configuration Details Traffic Channels Defined.
Channels on Traffic
CCDF PAR
Channel 1: FCH
5.25
Channel 2: PCH + FCH
4.70
Channel 3: PCH + DCCH
7.30
Channel 4: PCH + FCH + DCCH
7.20
Channel 5: PCH + FCH + SCH
6.10
Channel 6: PCH + DCCH + SCH
6.20
DCCH = Dedicated Control Channel
FCH = Fundamental Channel
PCH = Pilot Channel
SCH = Supplemental Code Channel
3236 Scott Boulevard, Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
CHP0232-PM
Preliminary Product Information - July 2002
(4 of 8)
TM
Typical Performance
Figure 2. Channel Configurations as Set Up in ESG Signal Source
Channel Voltage Gain
Channel Power Ratio
Channels on Traffic
PCH
FCH
DCCH SCH
PCH
FCH
DCCH
SCH
Ch 1: FCH
V Gain, dB
1.0
0
Bits per Sec.
9600
9600
Ch 2: PCH + FCH
V Gain, dB
1.0
1.54
-5.278
-1.528
Bits per Sec.
On
9600
On
9600
Ch 3: PCH + DCCH
V Gain, dB
1.0
1.54
-5.278
-1.528
Bits per Sec.
On
9600
On
9600
Ch 4: PCH + FCH
V Gain, dB
1.0
0.512
1.54
-5.60
-11.48
-1.85
Bits per Sec.
On
1500
9600
On
1500
9600
Ch 5: PCH + FCH + SCH
V Gain, dB
1.0
1.54
1.54
-7.59
-3.84
-3.84
Bits per Sec.
On
9600
9600
On
9600
9600
Ch 6: PCH + DCCH + SCH
V Gain, dB
1.0
1.54
1.54
-7.59
-3.84
-3.84
Bits per Sec.
On
9600
9600
On
9600
9600
DCCH = Dedicated Control Channel
FCH = Fundamental Channel
PCH = Pilot Channel
SCH = Supplemental Code Channel
3236 Scott Boulevard
Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
CHP0232-PM
Preliminary Product Information - July 2002
(5 of 8)
TM
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