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Número de pieza | RF2413PCBA | |
Descripción | GAIN CONTROLLED DUAL-CONVERSION QUADRATURE MODULATOR | |
Fabricantes | RF Micro Devices | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de RF2413PCBA (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! • Digital and Spread Spectrum Systems
• Analog Communication Systems
• GSM Systems
RF2413
• CDMA Systems
• General Purpose Frequency Conversion
• Portable Battery Powered Equipment
The RF2413 is a monolithic integrated transmitter univer-
sal modulation IC capable of generating modulated AM,
PM, or compound carriers in the VHF/UHF frequency
range. The modulation is performed at VHF, then the
resulting spectrum is upconverted to a frequency range
between 100MHz and 1000MHz. Up to 60dB of power
control is possible through the use of two gain control
pins. The IC contains all of the required components to
implement the modulation function including differential
amplifiers for the baseband inputs, a 90° hybrid phase
splitter, limiting LO amplifiers, two balanced mixers, a
combining, gain-controlled differential amplifier, a second
balanced mixer, and an output gain-controlled RF ampli-
fier which will drive a 50Ω load.
Si BJT
GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
VDD2 1
VDD1 2
PD 3
POWER
CONTROL
I SIG 4
I REF 5
Q REF 6
Σ
Q SIG 7
GC1 8
GC2 9
LO1 10
-45°
+45°
20 RF OUT
19 GND4
18 GND3
17 LO2
16 GND2
15 MIX IN+
14 MIX IN-
13 GND1
12 MOD OUT-
11 MOD OUT+
.299
.292
1
.493
.486
.009
.005
.018
.014
.050
8 °MAX
0°MIN
.413
.398
.092
.050 .010
.016 .008
!"
• Single 3V to 6.5V Power Supply
• Low Broadband Noise Floor
• Excellent Amplitude & Phase Balance
• Digitally Controlled Power Down
• 30MHz to 100MHz IF Frequency
• 200MHz to 1000MHz RF Frequency
RF2413
RF2413 PCBA
Gain Controlled Dual-Conversion Quadrature Modu-
lator
Fully Assembled Evaluation Board
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
5
Rev B3 990419
5-19
1 page RF2413
10
LO1
High impedance modulator LO input. A shunt 56Ω resistor can be used
for matching. This pin is NOT internally DC blocked. An external block-
LO1
ing capacitor must be provided if the pin is connected to a device with
DC present. A DC path to ground (i.e. an inductor or resistor to ground)
is, however, acceptable at this pin. If a blocking capacitor is required, a
value of 1nF is recommended.
11 MOD OUT+ Balanced IF output port. If no filtering is required this pin can be con-
nected directly to the MIX IN+ pin. This pin is NOT DC blocked and car-
ries DC. A blocking capacitor of 1nF is needed when this pin is
connected to a DC path. An appropriate matching network may be
needed if an IF filter is used.
MOD OUT+
MOD OUT-
12 MOD OUT- Same as pin 11, except complementary output.
See pin 11.
13
GND1
Ground connection for all baseband circuits, modulator and the IF
buffer amplifier. Keep traces physically short and connect immediately
to ground plane for best performance.
14 MIX IN- High impedance balanced input to the gain controlled IF stage. This pin
has an internal DC blocking capacitor. If no IF filter is needed, this pin MIX IN+
MIX IN-
may be connected directly to MOD OUT-. If an IF filter is used, an exter-
nal shunt resistor to ground may be needed to provide correct matching
for the filter.
BIAS
BIAS
15 MIX IN+ Same as pin 14, except complementary input.
See pin 14.
16
GND2
Ground connection for the limiting LO2 buffer amplifier. Keep traces
physically short and connect immediately to ground plane for best per-
formance.
17
LO2
Mixer LO Input port. A shunt 56Ω resistor can be used for matching.
This pin has internal DC blocking,
LO2
18
GND3
Ground connection for the IF mixer and the RF gain control stage. Keep
traces physically short and connect immediately to ground plane for
best performance.
19
GND4
Ground connection for the RF output stage. Keep traces physically
short and connect immediately to ground plane for best performance.
20 RF OUT 50Ω output. This pin is not internally DC blocked, and an external
blocking capacitor of 100pF is required.
BIAS
BIAS
RF OUT
5
Rev B3 990419
5-23
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet RF2413PCBA.PDF ] |
Número de pieza | Descripción | Fabricantes |
RF2413PCBA | GAIN CONTROLLED DUAL-CONVERSION QUADRATURE MODULATOR | RF Micro Devices |
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