T0780.pdf 데이터시트 (총 11 페이지) - 파일 다운로드 T0780 데이타시트 다운로드

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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-Impedances on All Three Ports
Small SSO16 Package
Applications
Digital Communication Systems
800 MHz to 1000 MHz Transceivers for Base Stations
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Electrostatic sensitive device.
Observe precautions for handling.
800 MHz -
1000 MHz
High Linearity
SiGe Active
Receive Mixer
Description
The T0780 is a high linearity active mixer which is manufactured using Atmel’s
advanced Silicon-Germanium (SiGe) technology. This mixer features a frequency
range of 800 MHz to 1000 MHz. It operates from a single 5-V supply and provides
10 dB of conversion gain while requiring only 0 dBm input to the integrated LO driver.
An IF amplifier is also included.
The T0780 incorporates internal matching on each RF, IF and LO port to enhance
ease of use and to reduce the external components required. The RF and LO inputs
can be driven differentially or single-ended.
T0780
Preliminary
Figure 1. Block Diagram
4
RFP
RFN 5
LOP 13
LON 12
1 IFP
16 IFN
Rev. 4525D–SIGE–10/03

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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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
IFP
VCC
GND
RFP
RFN
GND
VCC
L1
L2
VCC
GND
LON
LOP
GND
VCC
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
Absolute Maximum Ratings
All voltages are referred to GND.
Parameters
Supply voltage
LO input
IF input
Operating temperature
Storage temperature
Symbol
VCC
LOP, LON
RFP, RFN
TOP
Tstg
Value
5 to 5.5
10
15
-40 to +85
-65 to +150
2 T0780 [Preliminary]
Unit
V
dBm
dBm
°C
°C
4525D–SIGE–10/03

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T0780 [Preliminary]
Thermal Resistance
Parameters
Junction ambient
Junction case
Symbol
RthJA
RthJC
Value
TBD
46
Unit
K/W
°C/W
Electrical Characteristics
Test Conditions: VCC = +5 V, Tamb = +25°C; RF input: -20 dBm at 900 MHz; LO output: 0 dBm at 700 MHz
No. Parameters
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1 AC Performance
Test Conditions/Pins
Pin Symbol Min. Typ. Max. Unit
Type *
1.1 RF frequency range
1.11 LO frequency range
1.2 IF frequency range
1.5 Conversion gain
fRF 800
1000 MHz
B, C
fLO 500
1000 MHz
B, C
FIF 30 200 300 MHz B, C
7 10
dB A
1.6 SSB noise figure
15 19 dB
D
1.3 Input IP3
RF1 = RF2 = –15 dBm/tone,
1 MHz spacing
IP3 15 19
dBm
D
1.4 Input P1dB
25
dBm
D
1.7 RF return loss
1.8 LO return loss
1.9 IF return loss
1.10 LO drive
Matched to 50 W(1)
Matched to 50 W(1)
Matched to 50 W(1)
Matched to 50 W(1)
20 dB D
20 dB D
20 dB D
-3
0
+3 dBm
D
2 Isolation Performance
2.1 Leakage (LO-RF)
Single-ended configuration
-40 -35 dBm
D
2.2 Leakage (LO-IF)
Single-ended configuration
-26 -20 dBm
D
2.3 Leakage (RF-IF)
Single-ended configuration
-40 -35 dBm
D
3 Miscellaneous
3.1 Supply voltage
VCC 4.75 5 5.25 V
A
3.1 Supply current
ICC
160 180
mA
A
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Notes: 1. The return losses shown were measured with the T0780 mounted on Atmel’s FR4 evaluation boards using standard
matching practices as indicated on the application schematic page herein. Users following the RF, LO and IF matching
guidelines will achieve similar performance.
4525D–SIGE–10/03
3