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Atmel Electronic Components Datasheet



T0781

1700 - 2300 MHz High Linearity SiGe Active Receiver Mixer



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T0781 pdf
Features
Active Mixer with Conversion Gain
No External LO Driver Necessary
Low LO Drive Level Required
RF and LO Ports May Be Driven Single-ended
Single 5-V Supply Voltage
High LO-RF Isolation
Broadband Resistive 50-W Impedances on All Three Ports
Applications
www.DataISnhferaets4tUru.ccotmure Digital Communication Systems
1700 MHz to 2300 MHz Receivers for CDMA/PCS/DCS/UMTS Base Stations
Electrostatic sensitive device.
Observe precautions for handling.
Description
The T0781 is a high linearity active mixer which is manufactured using Atmel’s
advanced Silicon-Germanium technology. This mixer features a frequency range of
1700 MHz to 2300 MHz. It operates from a single 5-V supply and provides 12 dB of
conversion gain while requiring only 0 dBm input to the integrated LO driver. An IF
amplifier is also included.
The T0781 incorporates internal matching on each RF, IF and LO ports to enhance
ease of use and to reduce the external components required. The RF and LO inputs
can be driven differentially or single-ended.
1700 - 2300 MHz
High Linearity
SiGe Active
Receiver Mixer
T0781
Preliminary
Figure 1. Block Diagram
4
RFP
RFN 5
13
LOP
LON 12
1 IFP
16 IFN
Rev. 4534B–SIGE–01/03
1



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T0781 pdf
Pin Configuration
Figure 2. Pinning SSOP16
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IFP
VCC
GND
RFP
RFN
GND
VCC
L1
1
2
3
4
5
6
7
8
16 IFN
15 VCC
14 GND
13 LOP
12 LON
11 GND
10 VCC
9 L2
Pin Description
Pin Symbol
1 IFP
2 VCC
3 GND
4 RFP
5 RFN
6 GND
7 VCC
8 L1
9 L2
10 VCC
11 GND
12 LON
13 LOP
14 GND
15 VCC
16 IFN
Function
IF positive output
5-V power supply
Ground
RF positive input
RF negative input
Ground
5-V power supply
External inductor terminal
External inductor terminal
5-V power supply
Ground
Local oscillator, negative input
Local oscillator, positive input
Ground
5-V power supply
IF negative output
2 T0781
4534B–SIGE–01/03



Part Number T0781
Description 1700 - 2300 MHz High Linearity SiGe Active Receiver Mixer
Maker ATMEL Corporation - ATMEL Corporation
Total Page 18 Pages
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