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PDF T7026 Data sheet ( Hoja de datos )
| Número de pieza | T7026 | |
| Descripción | ISM 2.4 GHz Front End IC | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• Single 3-V Supply Voltage
• High-power-added Efficient Power Amplifier (Pout Typically 28 dBm)
• Ramp-controlled Output Power
• Low-noise Preamplifier (NF Typically 2.1 dB)
• Biasing for External PIN Diode T/R Switch
• Current-saving Standby Mode
• Few External Components
• Package: QFN20
1. Description
The T7026 is a monolithic SiGe transmit/receive front-end IC with power amplifier,
low-noise amplifier and T/R switch driver. It is especially designed for operation in
TDMA systems like DECT, IEEE 802.11 FHSS WLAN, home RF and ISM proprietary
radios. Due to the ramp-control feature and a very low quiescent current, an external
switch transistor for VS is not required.
ISM 2.4 GHz
Front End IC
T7026
Electrostatic sensitive device.
Observe precautions for handling.
Figure 1-1. Block Diagram
www.DataSheet4U.com
TX/RX
standby
control
TX
LNA
PA
SiGe FE
T7026
Rev. 4563E–ISM–07/05
1 page  
T7026
6. Electrical Characteristics (Continued)
Test conditions (unless otherwise specified): VS = 3.6 V, Tamb = 25°C
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Power gain
RX, pin LNA_IN to LNA_OUT
Gp 15 16 19 dB
Noise figure
RX
NF 2.1 2.3 dB
Gain compression
RX, referred to pin LNA_OUT
O1dB –9 –7 –6 dBm
Third-order input interception point
Input matching(4)
RX
RX, pin LNA_IN
IIP3 –16 –14 –13 dBm
VSWRin
< 2:1
Output matching(4)
RX, pin LNA_OUT
VSWRout
< 2:1
Logic Input Levels (RX_ON, PU)
High input level
= 1, pins RX_ON and PU
ViH 2.4
VS, LNA
V
Low input level
=0
ViL 0
0.5 V
High input current
= 1, ViH = 2.4 V
IiH 40 60 µA
Low input current
=0
IiL 0.2 µA
Notes: 1. Power amplifier shall be unconditionally stable, maximum duty cycle 100%, true cw operation, maximum load mismatch
and duration: VSWR = 8:1 (all phases) 10 s, ZG = 50 Ω, VS = 3.6 V.
2. With external matching network, load impedance 50 Ω.
3. Low-noise amplifier shall be unconditionally stable.
4. With external matching components.
7. Control Logic for LNA and T/R-switch Driver
Operation Mode
PU
Standby
0
TX 1
RX 1
RX_ON
0
0
1
4563E–ISM–07/05
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet T7026.PDF ] | |
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