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RF2722
Proposed
Rev A4 DS050919
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Pin
Function
Description
Interface Schematic
1LNA 1P
RF input to LNA 1. Internally matched for 800MHz to 1000MHz operation.
This pin possesses a DC voltage with respect to ground, and a series block-
ing cap may be required in some applications.
2LNA 1N
Complementary input to pin 1. This pin possesses a DC voltage with
respect to ground, and a series blocking cap may be required in some
applications.
See Pin 1.
3LNA 2P
RF input to LNA 2. Internally matched for 800MHz to 1000MHz operation.
This pin possesses a DC voltage with respect to ground, and a series block-
ing cap may be required in some applications.
4LNA2N
Complementary input to pin 3. This pin possesses a DC voltage with
respect to ground, and a series blocking cap may be required in some
applications.
See Pin 3.
5LNA 3P
RF input to LNA 3. Internally matched for 1800MHz to 2000MHz opera-
tion. This pin possesses a DC voltage with respect to ground, and a series
blocking cap may be required in some applications.
6LNA 3N
Complementary input to pin 5. This pin possesses a DC voltage with
respect to ground, and a series blocking cap may be required in some
applications.
See Pin 5.
7LNA 4P
RF input to LNA 4. Internally matched for 1800MHz to 2000MHz opera-
tion. This pin possesses a DC voltage with respect to ground, and a series
blocking cap may be required in some applications.
8LNA 4N
Complementary input to pin 7. This pin possesses a DC voltage with
respect to ground, and a series blocking cap may be required in some
applications.
See Pin 7.
9MIX VCC
Supply for the quadrature mixer.
10
LO VCC
VCO divider supply.
11
VCO OUT
Output from the VCO to drive the synthesizer input. This is the VCO divided
by 8.
12
TXB OUT LB Low band TX buffer output.
BIAS
+
-
BIAS
+
-
BIAS
+
-
BIAS
+
-
LOAD
MIX VCC
BIAS
LO VCC
VCO OUT
TXB OUT LB
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