RF6001_1 RFMD [RF Micro Devices], RF6001_1 Datasheet - Page 10

• Manufacturer Part Number: RF6001_1
• Description: FRACTIONAL-N RF SYNTHESIZER WITH MODULATOR AND DIGITAL IF FILTER
• Manufacturer: RFMD [RF Micro Devices]

RF6001
Part of the POLARIS™ TOTAL RADIO™ Solution
10 of 70
Pin
13
14
15
16
18
19
20
22
23
17
21
24
Function
BGDC
DAC2
DAC1
VCO2
VCO1
TXEN
VCCV
VTC
VCC
FIN
NC
VT
Description
Bandgap voltage regulator output. A decoupling capacitor is required to
ground. DC output voltage of 1.25V.
DAC1 output. This pin is dedicated for the PA ramp control system when
PAEN bit is set to logic 1. Buffered analog output.
DAC2 output. General purpose DAC that can be used for AFC control of the
reference oscillator. Buffered analog output.
Transmit enable. Bi-directional digital pin. This pin can be used as an input
or as an output of the PA ramp system. This signal is also used to enable
the PA; for example, it should be connected to TX enable pin of the RF3146
PA. The direction of the pin is determined by the TXENIO bit. Digital input
with weak pulldown or digital output.
VCO coarse tuning control. This pin is connected to VTC pin on the RF2722
front end IC. Digital output.
PLL power supply. Supply filtering components may be required in some
applications (e.g., series resistor and shunt capacitor). Note that series
resistance to this pin will drop the supply voltage. The specified supply volt-
age range needs to be present on this pin during operation.
PLL loop filter output. This pin should be connected to VT pin on the
RF2722. Provides the correct tuning voltage to set the RX VCO to the pro-
grammed frequency. Low impedance analog output.
PLL prescaler input. This pin should be connected to VCO OUT pin on the
RF2722. Input impedance is specified in the PLL section of the electrical
specifications. When probing this pin, the probe must have an effective DC
resistance of 180kΩ minimum and <10pF capacitance.
No connect.
VCO2 output. DCS/PCS VCO output to the PA. This pin possesses a DC volt-
age and may require a DC blocking cap in some applications. Output
impedance is specified in the VCO2 section of the electrical specifications.
VCO1 output. US cellular/EGSM output to the PA. This pin possesses a DC
voltage and may require a DC blocking cap in some applications. Output
impedance is specified in the VCO1 section of the electrical specifications.
VCO power supply. Supply filtering components may be required in some
applications (e.g. series resistor and shunt capacitor). Note that series
resistance to this pin will drop the supply voltage. The specified supply volt-
age range needs to be present on this pin during operation.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
Interface Schematic
e
FIN
TXEN
BGDC
VCCV
VCC
Rev A3 DS050929
VCO2
VCO1
VTC
DAC1
Pin 14
VT