TDA5220 Datasheet, PDF (5/44 Pages) Infineon Technologies AG – ASK/FSK Single Conversion Receiver

confidential
TDA 5220
preliminary
Product Info
Product Info
General Description
The IC is a very low power consump- ^Package
tion single chip FSK/ASK Superhet-
erodyne Receiver (SHR) for the
frequency bands 810 to 870 MHz and
400 to 440 MHz. The IC offers a high
level of integration and needs only a
few external components. The device
contains a low noise amplifier (LNA), a
double balanced mixer, a fully inte-
grated VCO, a PLL synthesiser, a
crystal oscillator, a limiter with RSSI
generator, a PLL FSK demodulator, a
data filter, a data comparator (slicer)
and a peak detector. Additionally there
is a power down feature to save bat-
tery life.
Features
s Low supply current (typ. at 868MHz
I_s = 5.9mA in FSK mode,
I_s = 5.2mA in ASK mode)
s Supply voltage range 5V ±10%
s Selectable frequency ranges 810-
870 MHz and 400-440 MHz
s Limiter with RSSI generation,
operating at 10.7MHz
s Power down mode with very low
supply current (50nA typ)
s FSK and ASK demodulation capa-
bility
s Fully integrated VCO and PLL
Synthesiser
s ASK sensitivity < –107dBm
s Selectable reference frequency
s 2nd order low pass data filter with
external capacitors
s Data slicer with self-adjusting
threshold
s FSK sensitivity <-100dBm
Application s Keyless Entry Systems
s Remote Control Systems
s Alarm Systems
s Low Bitrate Communication
Systems
Ordering Information
Type
Ordering Code
TDA 5220
samples available on tape and reel
Package
P-TSSOP-28-1
Wireless Components
Product Info
Target Specification, October 2001