ATMEL T0980

Features
• Power Amplifier with High Power Added Efficient (PAE),
•
•
•
•
Pout Typically 29 dBm
Controlled Output Power
Low-noise Preamplifier (NF Typically 1.7 dB)
Few External Components
PSSO16 Plastic Package with Down Set Paddle
Description
The T0980 is a monolithic IC manufactured with Atmel’s advanced SiGe technology.
The IC performs a transmit and receive front-end dedicated for a frequency range of
400 MHz to 500 MHz. It consists of a Low-Noise Amplifier (LNA) and a Power Amplifier (PA) with good Power Efficiency (PAE).
SiGe Transmit/
Receive Frontend IC
T0980
Electrostatic sensitive device.
Observe precautions for handling.
Figure 1. Block Diagram
11
13
16
9
Bias
1
3
5
8
Rev. 4584A–SIGE–01/03
1
Pin Configuration
Figure 2. Pinning PSSOP16
V2_PA_OUT 1
16 V2_PA_OUT
V2_PA_OUT 2
15
GND
GND
3
14
V1_PA
POUT_
CONTROL
4
13
GND
PA_IN
T0980
GND
5
12
LNA_IN
6
11
GND
7
10 LNA_OUT
BIAS_LNA
8
9
GND
VS_CTRL
Pin Description
2
Pin
Symbol
1
V2_PA_OUT
Inductor to power supply and matching network for power amplifier output
2
V2_PA_OUT
Inductor to power supply and matching network for power amplifier output
3
GND
4
POUT_CONTROL
5
GND
6
LNA_IN
Function
Ground
Power amplifier control input
Ground
Low-noise amplifier input
7
GND
8
BIAS_LNA
Ground
Resistor to VS sets the LNA current
9
VS_CTRL
Supply voltage for control of power amplifier
10
LNA_OUT
Low-noise amplifier output and supply voltage
11
GND
Ground
12
PA_IN
Power amplifier input
13
GND
Ground
14
V1_PA
15
GND
16
V2_PA_OUT
Supply voltage for power amplifier
Ground
Matching network for power amplifier output
T0980
4584A–SIGE–01/03
T0980
Absolute Maximum Ratings
All voltages are referred to GND
Parameters
Symbol
Min.
VS_PA
Supply voltage PA, TX Pins 1, 2, 9 and 14
Supply voltage LNA, RX Pin 10
Max.
Unit
4.8
V
VS_LNA
2.8
V
150
°C
+125
°C
Junction temperature
Tjmax
Storage temperature
TStg
Electrostatic handling HMB; Pins 1, 2, 6, 10, 12 and 16
VESD
200
V
Electrostatic handling HMB; Pins 3, 4, 5, 7, 8, 9, 11, 13, 14 and 15
VESD
2000
V
-55
Operating Range
All voltages are referred to GND. The following table represents the sum of all supply currents.
Parameters
Test Conditions/Pins
Symbol
Supply voltage PA
TX, Pins 1, 2, 9 and 14
VS_PA
3.6
4.5
V
VS_LNA
2.5
2.6
V
IS_PA
400
mA
IS_LNA
2.5
mA
Supply voltage LNA
RX, Pin 10
Supply current PA
TX, Pins 1, 2, 9 and 14
Supply current LNA
Pins 10 and 8
Ambient temperature
Tamb
Min.
-25
Typ.
25
Max.
Unit
°C
60
Thermal Resistance
Parameters
Junction ambient
Symbol
Value
Unit
RthJA
25
K/W
3
4584A–SIGE–01/03
Electrical Characteristics
Test conditions (unless otherwise specified) : VS_PA = 3.6 V, Tamb = 25°C.
Parameters
Test Conditions/Pins
Symbol
TX, Pins 1, 2, 9 and 14
VS_PA
3.6
V
Supply current
TX, Pins 1, 2, 9 and 14
IS_PA
400
mA
Frequency range
TX
f
Power gain
TX
Gp
Control voltage
TX, output power (maximum), Pin 4
Control current
Pin 4
Shut down mode
Control voltage £ 0.1 V,
Pins 1, 2, 9 and 14
Power added efficiency
TX at 450 MHz
PAE
Saturated output power
TX, input power 3 dBm
Harmonics
Power Amplifier
Min.
Typ.
Max.
Unit
(1)
Supply voltage
400
TX, output power (minimum), Pin 4
500
33
dB
2.5
V
0.7
0
IS_PA
MHz
V
400
µA
10
µA
Psat
29
dBm
TX, input power 3 dBm
2 fo
-20
dBc
TX, input power 3 dBm
3 fo
-20
dBc
50
%
Low-noise Amplifier
Supply voltage
RX, Pins 8 and 10
VS_LNA
2.5
V
Supply current
RX at R1 = 5.6 kW, Pins 8 and 10
IS_LNA
2.5
mA
Frequency range
RX
Power gain
RX at R1 = 5.6 kW, Is = 2.5 mA
Gp
19
Noise figure
RX at R1 = 5.6 kW, Is = 2.5 mA
NF
1.7
Isolation
RX at R1 = 5.6 kW, Is = 2.5 mA
ISO
20
dB
3rd-order input interception point
RX at R1 = 5.6 kW, Is = 2.5 mA
IIP3
-10
dBm
Note:
4
f
400
500
MHz
dB
2.5
dB
1. Power amplifier should be unconditional stable, maximum duty cycle 100%, true cw-operation, maximum load mismatch
10:1 for 5 s at 3.6 V
T0980
4584A–SIGE–01/03
T0980
Typical Characteristics
Figure 3. Power Sweep
70.0
60.0
PAE
PAE (%)
Pout (dBm)
Gain (dB)
50.0
40.0
30.0
Pout
20.0
Gain
10.0
0.0
-10.0
-20.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
20.0
Pin (dBm)
Figure 4. Ramp Sweep
70
60
PAE
PAE (%)
Pout (dBm)
50
40
30
Pout
20
10
0
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
Vramp (V)
Figure 5. VCC Sweep
70.0
60.0
PAE
PAE (%)
Pout (dBm)
50.0
40.0
30.0
Pout
20.0
10.0
0.0
0.0
1.0
2.0
VCC (V)
3.0
4.0
5.0
5
4584A–SIGE–01/03
Figure 6. Typical Application Circuit (460 MHz)
C12
1uF
VS_PA
C2
1uF
C9
100pF
C11
L6
100pF
L5
22nH
4.7nH
PA_OUT
2.7pF
6.8nH
1
16
2
15
GND
C8
L4
C10
12pF
3
L1
1.5nH
T0980
14
C1
4
POUT_CTRL
Bias
13
C15
100pF
1nF
C3
100pF
C14
C13
8.2pF
100pF
LNA_IN
5
12
R3
39
6
11
7
10
C5
LNA_OUT
L3
C16
NC
39nH
3.9pF
L7
22nH
BIAS_LNA
PA_IN
L2
R1
8
9
C4
22nH
R2
NC
0
5.6k
C6
100pF
VS_LNA
C18
10nF
VS_CTRL
C7
100pF
6
C17
NC
T0980
4584A–SIGE–01/03
T0980
Ordering Information
Extended Type Number
Package
Remarks
T0980-TJS
PSSO16
Tube
T0980-TJQ
PSSO16
Taped and reeled
Package Information
7
4584A–SIGE–01/03
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4584A–SIGE–01/03
xM