RDA Microelectronics, Inc.
RDA5815S-Fully Integrated Satellite receiver for DVB-S , DVB-S2 & ABS-Sˈ
ˈ
MMDS
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The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole
or in part without prior written permission of RDA.
Features
z Single-chip RF-to-baseband Satellite receiver
z CMOS Fully integrated RF front end
z Low noise and wide dynamic range zero-IF receiver
z Input frequency range: 250 to 2300 MHz
z Input signal level: -100 to 5 dBm
z More than 85dB gain control range
z Fully integrated PLL (dividers, charge pump, phase &
frequency detectors, loop filters, etc.)
z Integrated RX VCO
z Integrated baseband LPF with selectable cut-off
frequency from 4MHz to 40MHz with 1MHz step
z Integrated LNA with RF AGC
z Integrated reference oscillator (27MHz is defult)
z I
2C bus interface
z Automatic gain control
z 0.11μm RF CMOS technology
z 3V to 3.6V operation
z power consumption of less than 600mW
z Lower profile packages:
¾ RDA5815s 4h4 mm QFN24
Pin assignment (24pin QFN 4×4 mm)
Applications
z Set-top boxes
z Digital video recorders
z Digital television
z Satellite PC-TV
z SMATV trans-modulators (Satellite Master Antenna TV)
General Description
The RDA5815s is a fully integrated direct conversion
RF front end for DVB-S,DVB-S2&ABS-S,MMDS digital satellite
Reception standard CMOS process. The receiving frequency range is from 250MHz to 2300MHz, and the
baseband filter’s bandwidth can be selected from 4MHz to 40MHz with 1MHz step.
The rda5815s consists of a variable gain LNA, quadrature downconverter, variable IF gain amplifiers, variable
low-pass filters, reference oscillator, VCOs, synthesizer and output baseband amplifier to drive external ADC.
Based on RDA’s some innovative technique, the rda5815s offers excellent phase noise and very low
implementation loss, required for advanced modulation systems such as 8PSK and DVB-S2. This tuner RF IC
does not require a balun and its fully integrated design saves valuable board space and simplifies RF layout.
3
4
5
6
2
16
15
14
13
17
8 9 10 11 12
GND
PAD
DVDD
ADD
RDA5815S
23 22 21 20 19
Vcc
NC
AGC
GND
LOOP
24
1
7
18
SCLK
NC
BBIN
REFCLK
BBQP
RFIP
NC
NC
BBQN
BBIP
Vcc
SDA
XTAL
GND
GND
Vcc
PDN
