PA2423U
RangeCharger
TM
2.4 GHz Bluetooth
tm
Power Amplifier IC
Preliminary
Applications
Bluetooth wireless technology (Class 1)
USB dongles
PCMCIA, flash cards
Access points
2.4 GHz cordless telephone
tm
Product Description
A monolithic, high-efficiency, silicon-germanium power
amplifier IC, the PA2423U is designed for 2.4 GHz
wireless applications, including Bluetooth
TM
Class1 and
2.4 GHz cordless telephone applications. It delivers
+22.5 dBm output power making it capable of
overcoming insertion losses of up to 2.5 dB between
amplifier output and antenna input.
The PA2423U provides a digital control input for
controlling power up and power down modes of
operation.
The PA2423U operates at 3.3 V DC. At typical output
power level (+22.5 dBm), the current consumption is
135 mA.
The silicon/silicon-germanium structure of the
PA2423U, and its exposed die-pad package, soldered
to the system PCB, provide high thermal conductivity
and a subsequently low junction temperature. This
device is capable of operating at a duty cycle of 100
percent. The device is pin for pin compatible to the
PA2423L.
Features
+22.5 dBm Output Power
Low current 108 mA typical @ P
OUT
= +20 dBm
CMOS Enable Interface
Power-control and power-down modes
3.3 V single supply operation
Thin, lead-free 6 pin QFN package
Ordering Information
Part Number
PA2423U
PA2423U-R
PA2423U-EV1
Package
6 pin QFN
(0.5 mm height)
6 pin QFN
(0.5 mm height)
Evaluation Kit
Remark
Samples
Tape &
Reel
Functional Block Diagram
V
CT L
V
CC0
V
R A MP
Bias Generator
Control
Circuitry
IN
Stage 1
Interstage
Match
Stage 2
OUT/V
C C 2
GND
V
CC1
GND
Figure 1: PA2423U Block Diagram
131-DST-01
Rev 1.1
Apr-18-2006
Confidential
QA041806
1 of 10
PA2423U
RangeCharger
TM
2.4 GHz Bluetooth
tm
Power Amplifier IC
Preliminary
Pin-Out Diagram
PA2423U
TopView
OUT/V
C C 2
OUT/V
C C 2
6
PA2423U
Bottom View
V
C TL
V
R AMP
1
2
6
1
2
V
C TL
V
R AMP
5
4
V
CC1
V
CC0
V
CC1
V
CC0
5
4
Die Pad
3
IN
Figure 2: PA2423U Pin-Out
Pin Out Description
Pin No.
1
2
3
4
5
6
Die Pad
Name
V
CTL
V
RAMP
IN
V
CC0
V
CC1
OUT/V
CC2
GND
Description
Controls the output level of the power amplifier. An analog control signal between 0 V
and V
CC
varies the PA output power between minimum and maximum values
Power Amplifier Enable pin. A digital control signal with logic high (power up) and logic
low (power down) is used to turn the device on and off.
Power amplifier RF input, external input matching network with DC blocking is required
Bias supply voltage
Stage 1 collector supply voltage, external inter-stage matching network is required
PA Output and Stage2 collector supply voltage, external output matching network with
DC blocking is required
Heatslug Die Pad is ground
131-DST-01
Rev 1.1
Apr-18-2006
Confidential
QA041806
IN
3
2 of 10
PA2423U
RangeCharger
TM
2.4 GHz Bluetooth
tm
Power Amplifier IC
Preliminary
Absolute Maximum Ratings
Operation in excess of any one of above Absolute Maximum Ratings may result in permanent damage. This device is
ESD sensitive. Handling and assembly of this device should be at ESD protected workstations.
Symbol
V
CC
V
CTL
V
RAMP
IN
T
A
T
STG
T
j
Supply Voltage
Control Voltage
Ramping Voltage
RF Input Power
Parameter
Min.
-0.3
-0.3
-0.3
-
-40
-40
-
Max.
+3.6
V
CC
V
CC
+8
+85
+150
+150
Unit
V
V
V
dBm
°C
°C
°C
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
DC Electrical Characteristics
Conditions:
Symbol
V
CC
I
CC
Supply Voltage
Supply Current (I
CC
= I
VCC0
+ I
VCC1
+ I
VCC2
),
V
CTL
= 3.3 V, P
OUT_MAX
≤
22.5 dBm
Supply Current variation over temperature
from T
A
= 25
°C
(-40
°C
< T
A
< +85
°C)
PA Output Power Control Voltage Range
Current sunk by V
CTL
pin
Logic High Voltage
Logic Low Voltage
Leakage Current when V
RAMP
= 0 V, No RF,
V
CTL
= high
V
CC0
= V
CC1
= V
CC2
= V
RAMP
= V
CTL
= 3.3 V, P
IN
= 0 dBm, T
A
= 25
°C,
f = 2.45 GHz, input and output
externally matched to 50Ω unless otherwise noted.
Parameter
Min.
2.7
-
Typ.
3.3
135
Max.
3.6
160
Unit
V
mA
∆Icc
TEMP
V
CTL
I
CTL
V
RAMP
I
stdby
-
0
-
2.0
-
-
25
-
200
-
-
0.5
-
V
CC
250
-
0.8
10
%
V
µA
V
V
µA
131-DST-01
Rev 1.1
Apr-18-2006
Confidential
QA041806
3 of 10
PA2423U
RangeCharger
TM
2.4 GHz Bluetooth
tm
Power Amplifier IC
Preliminary
AC Electrical Characteristics
Conditions:
Symbol
f
L-U
P
OUT_MAX
P
OUT_MIN
∆P
temp
dP
OUT
/d
V
CTL
G
SS
G
VAR
2f
3f,
IS
21
I
OFF
IS
12
I
STAB
V
CC0
= V
CC1
= V
CC2
= V
RAMP
= V
CTL
= 3.3 V, P
IN
= 0 dBm T
A
= 25
°C,
f = 2.45 GHz, input and output
externally matched to 50Ω unless otherwise noted.
Parameter
Frequency Range
Output Power @ V
CTL
= 3.3 V
Output Power @ V
CTL
= 0.4 V
Output Power variation over temperature
(-40
°C
< T
A
<+85
°C)
Control Voltage Sensitivity
Gain @ P
IN
= -25 dBm
Gain Variation over band (2400-2500 MHz)
Harmonics
Isolation in “OFF” State, V
RAMP
= 0 V
Reverse Isolation
Stability (P
IN
= 0 dBm, Load VSWR = 6:1)
Min.
2400
20.0
-
-
-
25.5
-
-
-
15
32
Typ.
-
22.5
-20
1
-
28.5
0.2
-45
-40
36
42
Max.
2500
-
0
2
120
-
1.0
-30
-35
-
-
Unit
MHz
dBm
dBm
dB
dBm/V
dB
dB
dBc
dB
dB
All non-harmonically related outputs less than
-50 dBc
131-DST-01
Rev 1.1
Apr-18-2006
Confidential
QA041806
4 of 10
PA2423U
RangeCharger
TM
2.4 GHz Bluetooth
tm
Power Amplifier IC
Preliminary
Typical Performance Characteristics
Test Conditions: SiGe PA2423U-EV1: V
CC0
= V
CC1
= V
CC2
= V
RAMP
= V
CTL
= 3.3 V, P
IN
= 0 dBm, T
A
= 25
°C,
f = 2.45
GHz, input and output externally matched to 50Ω unless otherwise noted
P
OUT
vs. P
IN
over V
CC
(2.45 GHz)
3.3 V
30
25
2.7 V
3.6 V
0.17
0.15
0.13
I
CC
vs. P
IN
over V
CC
(2.45 GHz)
3.3 V
2.7 V
3.6 V
P
OUT
(dBm)
20
I
CC
(A)
15
10
5
0
-24
0.11
0.09
0.07
0.05
-24
-22
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
2
-22
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
2
P
IN
(dBm)
P
IN
(dBm)
Efficiency vs P
IN
over V
CC
(2.45 GHz)
3.3V
50
45
40
2.7V
3.6V
23.5
23
22.5
Gain vs Frequency over V
CC
(P
IN
= 0 dBm)
3.3 V
2.7 V
3.6 V
Efficiency (%)
35
30
25
20
15
10
5
0
-30
-25
-20
-15
-10
-5
0
5
10
Gain (dB)
22
21.5
21
20.5
20
2.4
2.41
2.42
2.43
2.44
2.45
2.46
2.47
2.48
2.49
2.5
P
IN
(dBm)
Frequency (GHz)
P
OUT
vs. V
CTL
over V
CC
(2.45 GHz)
3.3 V
30
25
20
2.7 V
3.6 V
0.16
0.14
0.12
I
CC
vs. V
CTL
over V
CC
(2.45 GHz)
3.3 V
2.7 V
3.6 V
P
OUT
(dBm)
15
I
CC
(A)
0
0.5
1
1.5
2
2.5
3
3.5
4
10
5
0
-5
-10
-15
-20
0.1
0.08
0.06
0.04
0.02
0
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
2.75
3
3.25
3.5
V
CTL
(V)
V
CTL
(V)
Figure 3: PA2423U Typical Performance Characteristics
131-DST-01
Rev 1.1
Apr-18-2006
Confidential
QA041806
5 of 10
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
