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PA2460/PA2460-LF Power Amplifier IC
Advance Information
Princeton Technology Crop. reserves the right to change the product described in this datasheet. All information contained in this datasheet is subject to change without prior notice. Princeton Technology Crop. assumes no responsibility
for the use of any circuits shown in this datasheet.
Description
The PA2460 is a high-power and high-efficiency Power Amplifier (PA) IC for handheld
applications in the 130MHz to 500MHz band. The design is based on Gallium Arsenide
Hetero-junction Bipolar Transistor (GaAs HBT) process.
Features
‹
‹
‹
‹
Single 2.7V to 6V Supply Voltage
+33dBm Output Power for 3.5V to 6V
55% Efficiency
8-pin SOP(FD) package (5mm x 4mm)
Applications
‹
‹
‹
‹
FRS, GMRS Handsets
Commercial and Consumer Systems
Portable Battery-Powered Equipment
Long distance Remote Control
Block Diagram
Page 1
Aug 2008
PA2460/PA2460-LF Power Amplifier
Package and Pin Assignment: 8-Pin SOP(FD)
Dimensions in mm
Dimensions in inch
Symbols
min.
nom.
max.
min.
nom.
max.
A
1.45
1.50
1.55
0.057
0.059
0.061
A1
0.00
---
0.10
0.000
—
0.004
A2
---
1.45
---
---
0.057
---
B
0.33
---
0.51
0.013
---
0.020
C
0.19
---
0.25
0.007
---
0.010
D
4.80
---
5.00
0.189
---
0.197
E
3.80
---
4.00
0.150
---
0.157
e
—
1.27
—
—
0.050
—
H
5.80
---
6.20
0.228
---
0.244
L
0.40
—
1.27
0.016
—
0.050
y
—
—
0.10
—
—
0.004
θ
0°
—
8°
0°
—
8°
Page 2
Aug 2008
PA2460/PA2460-LF Power Amplifier
Pin Descriptions
Number
Name
I/O
Description
1
APC1
I
Analog Power Control
2
L1
I
Matching Inductor
3
RF_IN
I
RF input
4
VCC
Power
5
L2
I
Matching Inductor
6
RF_OUT
O
RF output
7
RF_OUT
O
RF output
8
APC2
I
Analog Power Control
Power supply for PA
1
L1
2
RF_IN
3
VCC
4
HiMARK
PA2460
lot no.
APC1
Page 3
8
APC2
7
RF_OUT
6
RF_OUT
5
L2
Aug 2008
PA2460/PA2460-LF Power Amplifier
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply Voltage
VCC
0 to 6
V
[email protected]
mA
Supply current
ICC
[email protected]
mA
VAPC
0.2 to 1.45
V
PIN
10
dBm
Operating Temperature Range
TOPR
-40 to 100
°C
Storage Temperature Range
TSTG
–55 to 125
°C
Soldering Temperature Range
TSLD
255
°C
Soldering Time Range
tSLD
10
s
Power Control Voltage Range
Input Power
Page 4
Aug 2008
PA2460/PA2460-LF Power Amplifier
Electrical Characteristics
(VCC = 3.5V, VSS = 0V, TA = 25°C, RL=50 Ohm, unless otherwise noted.)
Value
Parameter
Symbol
Condition
Unit
min.
typ.
max.
VCC Supply Voltage
VCC
2.7
4.8
V
Frequency Range
fRF
130
500
MHz
Input Power
PIN
POUT=33dBm
5
9
dBm
PIN=5dBm
33
34
dBm
Output Power
POUT
PIN=5dBm,Vcc=2.7V,
30
VAPC=1.4V
Efficiency
Current Consumption
ICC
Control Voltage Range
VAPC
Full Power Control Voltage
Control Current into VAPC
Isolation
Noise Floor
2nd to 13th Harmonic Distortion
Input VSWR
Rise Time and Fall Time
IAPC
dBm
PIN=5dBm,POUT=33dBm
57
63
70
%
POUT=33dBm
820
900
1000
mA
1.45
V
0.2
POUT=33dBm
1.35
1.4
1.45
V
POUT=33dBm
15
20
25
mA
PIN=5dBm, APC=0.2V
-40
-30
-25
dB
-84
dBm
dBc
PIN=5dBm, BW=100kHz,
fo+20MHz offset
POUT=33dBm
-30
-25
All power level
1.5:1
2:1
POUT=33dBm
Page 5
2
µsec
Aug 2008
PA2460/PA2460-LF Power Amplifier
Electrical Characteristics
(VCC = 6V, VSS = 0V, TA = 25°C, RL=50 Ohm, unless otherwise noted.)
Value
Parameter
Symbol
Condition
Unit
min.
VCC Supply Voltage
VCC
Frequency Range
fRF
Input Power
PIN
POUT
Output Power
Efficiency
Current Consumption
ICC
Control Voltage Range
VAPC
Full Power Control Voltage
IAPC
Control Current into VAPC
Isolation
Noise Floor
typ.
6
Input VSWR
500
MHz
POUT=33dBm
5
9
dBm
PIN=5dBm
33
34
dBm
PIN=5dBm,POUT=33dBm
40
45
50
%
POUT=33dBm
650
750
850
mA
1.45
V
0.2
POUT=33dBm
1.25
1.3
1.4
V
POUT=33dBm
8
12
16
mA
PIN=5dBm, APC=0.2V
-40
-30
-25
dB
-84
dBm
dBc
POUT=33dBm
-30
-25
All power level
1.5:1
2:1
POUT=33dBm
Rise Time and Fall Time
V
130
PIN=5dBm, BW=100kHz,
fo+20MHz offset
2nd to 13th Harmonic Distortion
max.
2
µsec
Input/Output impedance (for reference only)
Frequency
Bias
Input impedance
Output impedance
410MHz
6V
26.35-j187.1
8.45-j1.55
410MHz
3.5V
15.35-j186.7
5.95-j2.70
465MHz
6V
27.35-j159.3
12.55-j3.45
465MHz
3.5V
27.35-j159.3
7.3-2.2j
1. Output impedance: look into PA2460
2. Input impedance: look into PA2460
Page 6
Aug 2008
PA2460/PA2460-LF Power Amplifier
Evaluation Board Circuit
1
2
3
4
6
5
Vapc
C3
D
D
R2
C2
R1
C1
L2
L1
C
C
PA2460
1
RF-IN
C7
C6
2
3
4
C8
APC2
L1
RF_OUT
RF_IN
RF_OUT
VCC
L2
L:616mil W:12mil
8
Zo=50 ohm
7
RF_OUT
6
C13
ML1
5
C10
L3
L5
APC1
L4
C11
ML2
C12
L6
C9
B
B
C4
C5
Vcc
Vcc
A
A
Title
Size
PA2460
Number
Revision
B
Date:
File:
1
2
3
4
23-Sep-2005
Sheet of
D:\my documents\client data file\pa2460_eddie\pa2460_eddie.Ddb
Drawn By:
5
6
BOM
VCC
3.3V
Freq.
433.92M
300M
315M
433.92M
3.5V
460M
465M
380M
3.6V
315M
390M
400M
Vapc
1.4V
1.4V
1.4V
1.4V
1.4V
1.4V
1.4V
1.3V
1.3V
1.3V
C1,C2
1nF
1nF
5V
1nF
6V
433.92M 433.92M
1.3V
465M
1.3V
1.3V
1nF
1nF
C3,C4,C5
1uF
1uF
1uF
1uF
1uF
C6
100pF
100pF
100pF
100pF
100pF
L5
18nH
27nH
18nH
18nH
18nH
15nH
18nH
27nH
18nH
18nH
18nH
15nH
15nH
C7
5.6pF
10pF
15pF
5.6pF
4.7pF
5.6pF
5.6pF
8.2pF
8pF
7pF
6pF
8pF
5.6pF
C8
18pF
22pF
33pF
18pF
15pF
18pF
18pF
27pF
27pF
27pF
18pF
18pF
18pF
C9
NC
NC
NC
NC
NC
NC
NC
NC
7pF
7pF
4pF
6pF
4pF
C10
39pF
10pF
10pF
10pF
10pF
10pF
10pF
7pF
100pF
100pF
100pF
100pF
100pF
L6
6.8nH
8.2nH
8.2nH
5.6nH
5.6nH
5.6nH
5.6nH
12nH
5.6nH
5.6nH
4.7nH
3.3nH
2.2nH
C11
5pF
10pF
9pF
5pF
5pF
4pF
5pF
10pF
15pF
15pF
15pF
12pF
11pF
C12
9pF
22pF
22pF
10pF
8pF
8pF
10pF
22pF
14pF
12pF
10pF
11pF
9pF
C13
5pF
27pF
27pF
6pF
6pF
5pF
6pF
100pF
27pF
27pF
100pF
100pF
100pF
L1,L2
100nH
100nH
100nH
100nH
100nH
*L3,L4
25nH
25nH
25nH
25nH
25nH
R1
0 ohm
0 ohm
0 ohm
0 ohm
0 ohm
R2
0 ohm
0 ohm
0 ohm
0 ohm
0 ohm
* air coil inductor
Page 7
Aug 2008
PA2460/PA2460-LF Power Amplifier
Evaluation Board Layout
Critical layout guidelines:
1.C11 should be very close to pin6/pin7 (RF_OUT) of PA2460. (about
36mils away from pin7)
2.The dimension of microstrip line ML1 between C11 and C12 is 12mils *
616mils.
3.Zo of microstrip line ML2/ML3 is 50 ohm.
Page 8
Aug 2008
PA2460/PA2460-LF Power Amplifier
Typical Characteristics
410MHz,Vcc=3.5V,Pin=5dBm,Vapc=1.4V
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
36.50
63.0
33.66
36.00
62.5
33.65
35.50
62.0
33.64
61.5
33.63
61.0
33.62
60.5
33.50
60.0
33.00
32.50
Pout(dBm)
32.00
Eff(%)
31.50
31.00
2.50
3.00
3.50
4.00
4.50
64.0
63.0
33.61
62.0
33.60
59.5
33.59
59.0
33.58
58.5
33.57
58.0
33.56
404.00
5.00
61.0
Pout(dBm)
Eff(%)
406.00
408.00
Vcc(V)
410.00
412.00
414.00
60.0
59.0
416.00
Freq.(MHz)
Fig 1.1 Power Output vs. Vcc
Fig 1.2 Power Output vs. Frequency
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
35.00
65.0
40.00
60.0
30.00
70.00
34.00
60.00
Pout(dBm)
33.00
Eff(%)
55.0
31.00
45.0
29.00
10.00
30.00
0.00
EFF.(%)
30.00
40.00
EFF.(%)
50.0
50.00
20.00
Pout(dBm)
32.00
Pout(dBm)
EFF.(%)
34.00
EFF.(%)
Pout(dBm)
34.50
65.0
Pout(dBm)
35.00
66.0
20.00
28.00
Pout(dBm)
40.0
-10.00
Eff(%)
27.00
0.00
0.50
1.00
1.50
2.00
10.00
35.0
26.00
-20.00
25.00
-15.00
0.00
30.0
-10.00
-5.00
0.00
5.00
10.00
15.00
-30.00
Pin(dBm)
Fig 1.3 Power Output vs. Power Input
-10.00
Vapc(V)
Fig 1.4 Power Output vs. Control Voltage
Page 9
Aug 2008
PA2460/PA2460-LF Power Amplifier
Typical Characteristics
465MHz,Vcc=3.5V,Pin=5dBm,Vapc=1.4V
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
37.00
36.00
70.0
33.80
68.0
33.70
66.0
33.60
64.0
33.50
69.4
69.2
69.0
68.8
Pout(dBm)
62.0
68.6
Pout(dBm)
Eff(%)
68.4
33.40
33.00
68.2
60.0
33.30
58.0
33.20
56.0
33.10
67.6
458.00 460.00 462.00 464.00 466.00 468.00 470.00 472.00
68.0
Pout(dBm)
32.00
Eff(%)
31.00
2.50
3.00
3.50
4.00
4.50
5.00
67.8
Vcc(V)
Freq.(MHz)
Fig 2.1 Power Output vs. Vcc
Fig 2.2 Power Output vs. Frequency
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
34.00
33.50
72.0
40.00
70.0
30.00
80.00
70.00
Pout(dBm)
Eff(%)
68.0
60.00
20.00
33.00
50.00
64.0
10.00
40.00
0.00
30.00
EFF.(%)
32.50
Pout(dBm)
66.0
EFF.(%)
Pout(dBm)
EFF.(%)
34.00
EFF.(%)
Pout(dBm)
35.00
32.00
Pout(dBm)
20.00
62.0
-10.00
Eff(%)
31.50
0.00
0.50
1.00
60.0
-20.00
31.00
-15.00
1.50
2.00 10.00
0.00
58.0
-10.00
-5.00
0.00
5.00
10.00
15.00
-30.00
Pin(dBm)
Fig 2.3 Power Output vs. Power Input
-10.00
Vapc(V)
Fig 2.4 Power Output vs. Control Voltage
Page 10
Aug 2008
PA2460/PA2460-LF Power Amplifier
Typical Characteristics
410MHz,Vcc=6V,Pin=5dBm,Vapc=1.3V
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
34.00
59.00
33.50
57.00
34.00
50.00
33.80
49.50
33.60
49.00
33.40
48.50
33.20
48.00
33.00
47.50
32.80
47.00
32.60
46.50
33.00
Pout(dBm)
51.00
31.50
49.00
31.00
30.50
47.00
Pout(dBm)
Eff(%)
30.00
3.50
4.00
4.50
5.00
6.00
Pout(dBm)
46.00
32.20
Eff(%)
45.50
32.00
45.00
5.50
32.40
45.00
404.00
6.50
406.00
408.00
410.00
412.00
414.00
416.00
Freq.(MHz)
Vcc(V)
Fig 3.1 Power Output vs. Vcc
Fig 3.2 Power Output vs. Frequency
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
60.00
40.00
40.00
60.00
35.00
35.00
50.00
Pout(dBm)
30.00
50.00
Eff(%)
30.00
Pout(dBm)
Pout(dBm)
15.00
20.00
20.00
10.00
10.00
0.00
10.00
0.00
5.00
-5.00
0.00
-15.00
30.00
15.00
5.00
Pout(dBm)
Eff(%)
20.00
EFF.(%)
EFF.(%)
30.00
20.00
40.00
25.00
40.00
25.00
10.00
EFF.(%)
EFF.(%)
53.00
32.00
Pout(dBm)
55.00
32.50
-10.00
0.00
-10.00
-5.00
0.00
5.00
10.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
Vapc(V)
Pin(dBm)
Fig 3.3 Power Output vs. Power Input
-10.00
0.00
15.00
Fig 3.4 Power Output vs. Control Voltage
Page 11
Aug 2008
PA2460/PA2460-LF Power Amplifier
Typical Characteristics
465MHz,Vcc=6V,Pin=5dBm,Vapc=1.3V
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
34.00
33.50
70.00
33.45
60.00
33.40
50.00
33.35
48.00
47.80
47.60
47.40
Pout(dBm)
30.00
47.20
33.30
47.00
33.25
46.80
32.00
20.00
33.20
10.00
33.15
46.60
Pout(dBm)
31.50
46.40
Eff(%)
Pout(dBm)
46.20
Eff(%)
31.00
0.00
3.50
4.00
4.50
5.00
5.50
6.00
33.10
6.50
46.00
458.00 460.00 462.00 464.00 466.00 468.00 470.00 472.00
Vcc(V)
Freq.(MHz)
Fig 4.1 Power Output vs. Vcc
Fig 4.2 Power Output vs. Frequency
PA2460 SOP(FD)8L
PA2460 SOP(FD)8L
60.00
36.00
40.00
60.00
35.00
34.00
Pout(dBm)
50.00
30.00
Pout(dBm)
Pout(dBm)
20.00
20.00
30.00
15.00
20.00
10.00
5.00
10.00
24.00
Pout(dBm)
22.00
0.00
10.00
0.00
-5.00
Eff(%)
20.00
0.00
-10.00
-5.00
0.00
5.00
10.00
EFF.(%)
26.00
EFF.(%)
30.00
40.00
25.00
40.00
30.00
28.00
50.00
Eff(%)
32.00
-15.00
EFF.(%)
40.00
32.50
EFF.(%)
Pout(dBm)
33.00
-10.00
15.00
Pin(dBm)
Fig 4.3 Power Output vs. Power Input
-10.00
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
Vapc(V)
Fig 4.4 Power Output vs. Control Voltage
Page 12
Aug 2008
PA2460/PA2460-LF Power Amplifier
Application Circuit
1
D
2
3
4
6
5
D
Regulator
Vcc
Vapc
U1
1
2
IN OUT
ADJ
3
LM1117
R1
C15
R2
C3
C2
C1
L2
L1
C
ANTENNA
C
PA2460
1
RF-IN
C7
C6
2
3
4
C8
L3
L5
APC1
APC2
L1
RF_OUT
RF_IN
RF_OUT
VCC
L2
L:616mil W:12mil
8
7
RX
6
C13
5
C10
L4
C11
D1
D2
C14
C12
R3
L7
R4
L6
C9
B
B
C4
Vcc
R5
CTL_TX
C5
Vcc
CTL_RX
CTL_TX=HIGH,CTL_RX=LOW,select TX
CTL_TX=LOW,CTL_RX=HIGH,select RX
A
A
Title
Size
PA2460
Number
Revision
B
Date:
File:
1
2
3
4
5
23-Sep-2005
Sheet of
D:\my documents\client data file\pa2460_eddie\pa2460_eddie.Ddb
Drawn By:
6
Fig 5
1.L7 > 120nH for RF choking.
2.Use R3 and R4 to adjust diode bias currents for low loss (~0.5dB loss at
1.1mA). And R3 and R4 must be large enough to provide an open to RF.
3.When CTL_TX is high and CTL_RX is low (select TX), then D1 is on and
R5 provides a reverse bias voltage to turn off D2,and thus provides RX/TX
isolation.
4.Since Pout is sensitive to Vapc, it is recommended to use a regulator to provide the Vapc voltage.
Page 13
Aug 2008
PA2460/PA2460-LF Power Amplifier
Application Circuit
1
D
2
3
4
6
5
D
Regulator
Vcc
Vapc
U1
1
2
IN OUT
ADJ
3
LM1117
R1
C15
R2
C3
C2
C1
L2
L1
C
ANTENNA
C
PA2460
1
RF-IN
C7
C6
2
3
4
C8
L3
L5
APC1
APC2
L1
RF_OUT
RF_IN
RF_OUT
VCC
L2
C14
L:616mil W:12mil
8
D1
7
L7
RX
6
C13
5
C10
L4
C11
D2
C12
C15
L6
C16
R3
C9
B
B
C4
CTL
C5
Vcc
Vcc
A
A
Title
Size
PA2460
Number
Revision
B
Date:
File:
1
2
3
4
23-Sep-2005
Sheet of
D:\my documents\client data file\pa2460_eddie\pa2460_eddie.Ddb
Drawn By:
5
6
Fig 6
1.L7,C15 and C16 form an equivalent circuit of 1/4 wave length.
2.Use R3 to adjust diode bias current for low loss (~0.5dB loss at 1.1mA).
And R3 must be large enough to provide an open to RF.
3.When CTL goes high (select TX), D1 and D2 are forward biased. L7/C15/
C16 combined with D2 make an open circuit to TX. When CTL goes low
(select RX),D1 and D2 are off, and D1 provides an open to RX.
4.Since Pout is sensitive to Vapc, it is recommended to use a regulator to provide the Vapc voltage.
Page 14
Aug 2008
PA2460/PA2460-LF Power Amplifier
Application Circuit
1
2
D
3
4
6
5
D
Regulator
Vcc
Vapc
U1
1
2
IN OUT
ADJ
3
LM1117
R1
C15
R2
C3
C2
C1
L2
L1
C
C
PA2460
1
RF-IN
C7
C6
2
3
4
C8
L3
L5
APC1
APC2
L1
RF_OUT
RF_IN
RF_OUT
VCC
L2
L:616mil W:12mil
8
CTL_TX
7
TX
6
C10
L4
C11
CTL_TX
GND
C13
5
RX
C12
RF
CTL_RX
Switch
L6
ANTENNA
CTL_RX
RX
C9
CTL_TX=HIGH,CTL_RX=LOW,select TX
B
C4
C5
Vcc
B
CTL_TX=LOW,CTL_RX=HIGH,select RX
Vcc
A
A
Title
Size
PA2460
Number
Revision
B
Date:
File:
1
2
3
4
5
22-Sep-2005
Sheet of
D:\my documents\client data file\pa2460_eddie\pa2460_eddie.Ddb
Drawn By:
6
Fig 7
1.Since Pout is sensitive to Vapc, it is recommended to use a regulator to provide the Vapc voltage.
2.The loss of switch is around 0.5dB.
Page 15
Aug 2008