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Atmel Electronic Components Datasheet

T0790 Datasheet

700 MHz - 2700 MHz Direct Quadrature Modulator

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T0790 pdf
Features
700 MHz to 2700 MHz Operating Frequency
Very Low Noise Floor Performance
Very Good Sideband and Carrier Suppression
Supports Wideband Baseband Input
Very High Linearity
Very Low LO Leakage
50 Impedance on RF and LO Port
Low LO Drive Requirements
No External IF Filter
Supply Voltage 5 V
Small SSOP16 Package
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Electrostatic sensitive device.
Observe precautions for handling.
700 MHz -
2700 MHz
Direct
Quadrature
Modulator
T0790
Description
The T0790 is a direct quadrature modulator using Atmel’s Silicon-Germanium (SiGe)
process.
This modulator features a frequency range of 700 to 2700 MHz with excellent carrier
and sideband suppression and a very low noise floor. It operates from a single 5 V
supply and provides -11 dBm of power while requiring only 0 dBm input to the inte-
grated LO driver. An RF and an LO amplifier are also included.
The T0790 incorporates internal matching on each RF, IF and LO port to enhance
ease of use and to reduce the external components required. The LO input can be
driven differentially or single ended.
Figure 1. Block Diagram
Preliminary
BBQ- 16
BBQ+ 1
LO+
LO-
4
5
BBI+
BBI-
8
9
90°
13
RF+
12 RF-
Rev. 4555C–SIGE–11/03


Atmel Electronic Components Datasheet

T0790 Datasheet

700 MHz - 2700 MHz Direct Quadrature Modulator

No Preview Available !

T0790 pdf
Pin Configuration
Figure 2. Pinning SSOP16
BBQ+
VCC
GND
LO+
LO-
GND
/SD
BBI+
1
2
3
4
5
6
7
8
16 BBQ-
15 VCC
14 GND
13 RF+
12 RF-
11 GND
10 VCC
9 BBI-
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Pin Description
Pin Symbol
1 BBQ+
2 VCC
3 GND
4 LO_IN+
5 LO_IN-
6 GND
7 /SD
8 BBI+
9 BBI-
10 VCC
11 GND
12 RF_IN-
13 RF_IN+
14 GND
15 VCC
16 BBQ-
– Paddle
Function
Baseband Q-axis positive input
Supply voltage
Ground
Positive local oscillator input, nominal DC voltage is 2.0 V internally biased; input should be AC-coupled
Negartive local oscillator input, nominal DC voltage is 2.0 V internally biased; input should be AC-coupled
Ground
Shutdown control
Baseband I-axis positive input
Baseband I-axis negative input
Supply voltage
Ground
Negative RF output; nominal DC voltage is 2.4 Vinternally biased; input should be AC-coupled
Positive RF output; nominal DC voltage is 2.4 V internally biased; input should be AC-coupled
Ground
Supply voltage
Baseband Q-axis negative input
Device ground and heat sink, requires good thermal path; RF reference plane
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Parameters
Symbols
Value
Unit
Supply voltage, no RF
applied
VCC
5.5 V
LO input signals
LO_IN-, LO_IN+
+10.0
dBm
Input voltage
BBI+, BBI-, BBQ+, BBQ-
3
V
Operating case
temperature
TC
-40 to +85
°C
Storage temperature
TSTG
-55 to +150
°C
2 T0790 [Preliminary]
4555C–SIGE–11/03


Part Number T0790
Description 700 MHz - 2700 MHz Direct Quadrature Modulator
Maker ATMEL Corporation
Total Page 14 Pages
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T0790 pdf
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