RF2948B RF Micro Devices, RF2948B Datasheet - Page 12

• Manufacturer Part Number: RF2948B
• Description: 2.4GHz SPREAD-SPECTRUM TRANSCEIVER
• Manufacturer: RF Micro Devices

Figure 1. Entire Chipset Functional Block Diagram
11-250
RF2948B
2.4 to 2.483 GHz
2.4 GHz ISM Chipset
RF Micro Devices
Filter
Switch
T/R
Select
Gain
Synthesizer
Frequency
Dual Gain Modes
Dual
RF2189
LNA
2.4 to 2.483 GHz
IL = 1-3 dB
VCO
VCO
RF
IF
SSOP-16 EPP
RX
RF2494
IL = 10 dB max
SAW
PA Driver
10 dBm
2.4 to 2.483 GHz
IL = 1-3 dB
RX
TX
x 2
TX
+45°
-45°
TX VGC
IF Amp
Σ
RX VGC
(f
Active Selectable LPF
C
Base Band Amp.
= 1 MHz to 40 MHz)
Selectable LPF
RF2948B
Filter
Filter
Rev A6 040930
OUT Q
OUT I
Q INPUT
I INPUT