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Features
* * * * *
High-power-added Efficient Power Amplifier (Pout Typically 29 dBm) Controlled Output Power Low-noise Preamplifier (NF Typically 1.5 dB) Few External Components PSSO20 Plastic Package with Down-set Paddle
UHF SiGe Front-end IC
Electrostatic sensitive device. Observe precautions for handling.
ATR0981 Preliminary
1. Description
The ATR0981 is a monolithic IC manufactured using Atmel's advanced SiGe technology. The IC performs a transmit and receive front-end function, dedicated for a frequency range of 300 MHz to 500 MHz. It consists of a Low-Noise Amplifier (LNA) and a Power Amplifier (PA) with good Power-added Efficiency (PAE).
Figure 1-1.
Block Diagram
20
19
18
17
16
15
14
13
12
11
BIAS
BIAS
1
2
3
4
5
6
7
8
9
10
Rev. 4862A-SIGE-09/05
2. Pin Configuration
Figure 2-1. Pinning PSSO20 with Down Set Paddle
V3_PA_OUT V3_PA_OUT V3_PA_OUT GND4 GND3 NC GND2 LNA_IN GND1 BIAS_LNA 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 GND5 V2_PA GND6 POUT_CONTROL GND3 PA_IN GND4 LNA_OUT GND5 VS_CTRL
Table 2-1.
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Pin Description
Symbol V3_PA_OUT V3_PA_OUT V3_PA_OUT GND4 GND3 NC GND2 LNA_IN GND1 BIAS_LNA VS_CTRL GND5 LNA_OUT GND4 PA_IN GND3 POUT_CONTROL GND6 V2_PA GND5 Function Matching network for power amplifier output Inductor to power supply and matching network for power amplifier output Inductor to power supply and matching network for power amplifier output Ground Ground Not connected Ground Low-noise amplifier input Ground Resistor to VS sets the LNA current Supply voltage for control of power amplifier Ground Low-noise amplifier output and supply voltage Ground Power amplifier input Ground Power amplifier control input Ground Supply voltage for power amplifier Ground
2
ATR0981 [Preliminary]
4862A-SIGE-09/05
ATR0981 [Preliminary]
3. Absolute Maximum Ratings
All voltages are referred to GND (Pins 7, 9, 16, 18, 20, Slug)
Parameters Supply voltage PA, TX, pins 1, 2, 3, 11, 19 Supply voltage LNA, RX, pin 13 PA control voltage, TX, pin 17 Junction temperature Storage temperature Electrostatic handling HMB, all RF pins Electrostatic handling HMB, all control pins Symbol VS_PA VS_LNA VCNTL Tjmax TStg VESD VESD -55 Min. Max. 5 2.8 5 150 +125 200 2 Unit V V V C C V kV
4. Operating Range
All voltages are referred to GND (Pins 7, 9, 16, 18, 20, Slug). The following table represents the sum of all supply currents into the mentioned pins.
Parameters Supply voltage PA Supply voltage LNA Supply current PA Supply current LNA Ambient temperature Test Conditions/Pins TX, pins 1, 2, 3, 11, 19 RX, pin 13 TX, pins 1, 2, 3, 11, 19 Pins 10, 13 Symbol VS_PA VS_LNA IS_PA IS_LNA Tamb -30 Min. 3.0 2.4 Typ. 3.6 2.5 400 2.5 +25 +60 Max. 4.5 2.6 Unit V V mA mA C
5. Thermal Resistance
Parameters Junction ambient Symbol RthJA Value 19 Unit K/W
3
4862A-SIGE-09/05
6. Electrical Characteristics
Test conditions (unless otherwise specified) : VS_PA = 3.6V, Tamb = 25 C.
Parameters Power Amplifier Supply voltage Supply current Frequency range Power gain Output power control range Control voltage Control current Shut down mode Power added efficiency Saturated output power Harmonics Low-noise Amplifier Supply voltage Supply current Frequency range Power gain Noise figure Isolation Third-order input interception point Notes:
(2) (1)
Test Conditions/Pins TX, pins 1, 2, 3, 11, 19 TX, pins 1, 2, 3, 11, 19 TX TX, pin 15 to pins 1, 2, 3 TX TX, output power (maximum), pin 17 TX, output power (minimum), pin 17 Pin 17 Control voltage 0.1V, pins 1, 2, 3, 11, 19 TX at 466 MHz TX, input power 3 dBm TX, input power 3 dBm TX, input power 3 dBm RX, pins 10, 13 RX, pins 10, 13 RX RX at R1 = 5.6 k, IS = 2.5 mA RX at R1 = 5.6 k, IS = 2.5 mA RX at R1 = 5.6 k, IS = 2.5 mA RX at R1 = 5.6 k, IS = 2.5 mA
Symbol VS_PA IS_PA f Gp Pout
Min. 3.0 300 30 1
Typ. 3.6 400 34
Max. 4.5 550 500 3
Unit V mA MHz dB dB V V A A %
2.0 0.7 0 IS_PA PAE Psat 2 fo 3 fo VS_LNA IS_LNA f Gp NF ISO IIP3 -13 300 17.5 19 1.5 20 -10 2.4 50 27.5 10 55 29 -20 -20 2.5 2.5
2.5 400 20
30.5
dBm dBc dBc
2.6 3.5 500 20.5 2.0
V mA MHz dB dB dB dBm
1. Power amplifier should be unconditionally stable, maximum duty cycle 100%, true cw operation, maximum load mismatch 10:1 for 5s at 3.6V 2. Ensured by design
4
ATR0981 [Preliminary]
4862A-SIGE-09/05
ATR0981 [Preliminary]
7. Typical Characteristics
Figure 7-1. Power Sweep
70.0 60.0
PAE
50.0 40.0 30.0 20.0 10.0 0.0 -10.0 -20.0 -50.0 -40.0 -30.0 -20.0 -10.0 0.0 10.0 20.0
PAE (%) Pout (dBm) Gain (dB)
Pout Gain
Pin (dBm)
Figure 7-2.
Ramp Sweep
70 60
PAE
50 40
PAE (%) Pout (dBm)
30
Pout
20 10 0 0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
Vramp (V)
Figure 7-3.
VCC Sweep
70.0 60.0
PAE
50.0 40.0 30.0
PAE (%) Pout (dBm)
Pout
20.0 10.0 0.0 0.0 1.0 2.0 3.0 4.0 5.0
VCC (V)
5
4862A-SIGE-09/05
8. Application Circuit
Figure 8-1. Typical Application Circuit
POUT_CONTROL VS_PA C1 L1
PA_IN
LNA_OUT C4
C2 L2 C3
C5 L3
C6 R2 VS_LNA VS_PA
C7
20
19
18
17
16
15
14
13
12
11
BIAS
BIAS
C8
1
L4
2
3
4
5
6
7
8
C13
9
10
VS_PA C9
L5 L8 L6 C10 C11 LNA_IN VS_LNA C14 R1
PA_OUT
6
ATR0981 [Preliminary]
4862A-SIGE-09/05
ATR0981 [Preliminary]
Table 8-1. Bill of Materials for 460 MHz Applications
Part No. C1 C2, C3, C7, C9, C11, C13 C4 C5 C6 C8 C10 C14 L1 L2 L3, L5, L8 L4 L6 R2 Description Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Inductor Inductor Inductor Inductor Inductor Resistor Part Value 1 nF 100 pf n.c. 3.9 pF 220 pF 2.7 pF 12 pF 8.2 pF 1.5 nH 39 nH 22 nH 6.8 nH 3.9 nH 0 Package 0603 0603 0603 0603 0603 0604 0603 0603 0805 0805 0805 0805 0805 0603 Vendor Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard
9. Ordering Information
Extended Type Number ATR0981-TRUY ATR0981-TRHY Package PSSO20 PSSO20 Remarks Tube Taped and reeled
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4862A-SIGE-09/05
10. Package Information
0.4 A B
3.1
Package: PSS020 Dimensions in mm
4 6.75 max. B 6.7 max. 0.15 A
6.450.15 4.40.1 C
1.3
0.05+0.09
0.25 0.12
(20x)
5.40.2
0.65 5.85
A 11
technical drawings according to DIN specifications
20
1
10
Drawing-No.: 6.543-5071.01-4 Issue: 1; 23.08.00
8
ATR0981 [Preliminary]
4862A-SIGE-09/05
0.575
0.18 max.
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4862A-SIGE-09/05

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