Proposed
RF2722
Pin
13
Function
TXB OUT HB
Description
High band TX buffer output.
Interface Schematic
TXB OUT HB
Tuning control line for the VCO. Analog input.
14
VT
VCO VCC
VT
VCO VCC
Coarse VCO tuning control driven by RF6001. Digital input.
Supply for the RF VCO.
15
16
VTC
VTC
VCO VCC
VCO VCC
LOAD
TX buffer low band input. This is a high impedance voltage-driven input
designed to be driven by the RF6001/3 TXVCO output.
17
18
19
TXB IN LB
TXB IN HB
TX EN
TX buffer high band input. This is a high impedance voltage-driven input
designed to be driven by the RF6001/3 TXVCO output.
TX buffer enable. If the TX SEL (CRX1[2]) bit is set high, the TX buffers are
enabled by this pin. If the TX SEL bit is set low, this pin has no effect on the
activation of the TX buffers. (See register map for more information.) The
TX buffers are enabled by setting this pin high. The TX buffers are disabled
by setting this pin low.
Q-channel differential IF output.
20
21
Q OUT
Q OUT
Complementary output to Q OUT.
QB OUT
QB OUT
Complementary output to I OUT.
I-channel differential IF output.
22
23
24
IB OUT
I OUT
IB OUT
I OUT
Supply for all digital circuitry.
Supply for the filter.
DIG/FLT VCC
DIG/FLT VCC
LOAD
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support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
12 of 26
Rev A4 DS050919
RFMD [ RF MICRO DEVICES ]
