RF2051
Detailed Functional Block Diagram
IP1
ANA_VDD
DIG_VDD
RFIP1N
ENBL
CONTROL
MODE
1:1
RFIP1P
RESETB
ANA_DEC
ANA_VDD
SDATA
SCLK
ENX
RFOP1P
RFOP1N
SERIAL
BUS
OP1
Analog
Regulator
Digital
Regulator
Serial Data Interface,
Control and Biasing
4:1
Mixer 1
REXT
LO Divider 1
/1, /2, or /4
INDN
INDP
VCO 3
Voltage Controlled Oscillators
LO Buffer 1
Vtune
LFILT3
VCO 2
VCO 1
Mux
Synthesizer
Vref
LFILT2
Frac-N
Sequence
Generator
N Divider
LO Buffer 2
Phase /
Freq
Detector
-
+
Charge
Pump
LO Divider 2
/1, /2, or /4
LFILT1
ANA_VDD
RFOP2P
Mixer 2
XTALIPP
OP2
Reference Oscillator
Circuitry and
Crystal Tuning
Reference Divider
/1 to /7
4:1
RFOP2N
IP2
XTALIPN
RFIP2P
RFIP2N
1:1
Pin Out
32 31 30 29 28 27 26 25
ENBL
INDP
1
2
3
4
5
6
7
8
24 RFIP2P
23 RFIP2N
22 ANA_VDD
21 NC
INDN
REXT
EP
ANA_DEC
LFILT1
LFILT2
LFILT3
20 NC
19 DIG_VDD
18 RFOP1P
17 RFOP1N
9
10 11 12 13 14 15 16
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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DS140110
RFMD [ RF MICRO DEVICES ]
