RF3854PCK-410 RFMD, RF3854PCK-410 Datasheet - Page 15

• Manufacturer Part Number: RF3854PCK-410
• Description: KIT EVAL FOR RF3854
• Manufacturer: RFMD
• Type: Modulator, PA Driverr

Specifications of RF3854PCK-410

• Frequency: 800MHz ~ 2GHz
• For Use With/related Products: RF3854
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 689-1053; RF3854PCBA

Rev A1 DS070313
Pin
12
13
14
15
16
17
18
19
Function
RF OUT
RF OUT
RF OUT
RF OUT
RF OUT
RF OUT
WB N
WB P
HB N
HB P
LB N
LB P
GND
GC
Description
Gain control voltage. Maximum output power at 2.0V. Minimum output
power at 0V. When the chip is enabled the input impedance is 10kΩ to
1.67V
input goes high impedance.
Differential low band PA driver amplifier output.
This output is intended for low band (GSM850/900) operation and drives a
differential SAW.
A bypass mode allows the low band PA driver amplifier’s input to be
switched between the signal from the modulator and the signal applied at
LOLB. This enables a GMSK-modulated signal on the LOLB input to be
switched into the RF signal path.
The output is an open collector. The outputs are matched off-chip.
Complementary differential low band PA driver amplifier output.
See pin 13.
Differential high band PA Driver amplifier output.
This output is intended for DCS1800/PCS1900 band operation.
A bypass mode allows the high band PA driver amplifier’s input to be
switched between the signal from the modulator and the signal applied at
LOHB. This enables a GMSK-modulated DCS1800/PCS1900 signal on the
LOHB input to be switched into the RF signal path.
The output is an open collector. The outputs are matched off-chip.
Complementary differential high band PA driver amplifier output.
See pin 15.
Differential high band PA driver amplifier output.
This output is intended for wide band (W-CDMA) applications.
The output is an open collector. The output are matched off-chip.
Complementary differential wideband PA driver amplifier output.
See pin 17.
Ground.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
DC
. When the chip is powered down a FET switch is opened and the
Interface Schematic
See pin 13.
See pin 15.
See pin 17.
V
CC2
10 k Ω
V
V
V
CC
CC
CC
RF3854
1.7 V
V
V
V
CC
CC
CC
-
+
V
V
4 k Ω
V
CC
CC
CC
RF OUT WB P
RF OUT WB N
RF OUT HB P
RF OUT HB N
15 of 26
RF OUT LB P
RF OUT LB N