TDA5212 Datasheet, PDF (3/51 Pages) Infineon Technologies AG – ASK/FSK 915MHz Single Conversion Receiver

TDA 5212
preliminary
Product Info
Product Info
General Description
The IC is a very low power consump-
tion single chip FSK/ASK Superhet-
erodyne Receiver (SHR) for the re-
ceive frequency range between 910
and 920 MHz that is pin compatible to
the ASK Receiver TDA5202. The IC
offers a high level of integration and
needs only a few external compo-
nents. The device contains a low noise
amplifier (LNA), a double balanced
mixer, a fully integrated VCO, a PLL
synthesiser, a crystal oscillator, a lim-
iter with RSSI generator, a PLL FSK
demodulator, a data filter, a data com-
parator (slicer) and a peak detector.
Additionally there is a power down fea-
ture to save battery life.
Package
Features
Low supply current (I_s = 5.4 mA typ.
in FSK mode, I_s = 4.8 mA typ. in
ASK mode)
Supply voltage range 5 V ±10%
Power down mode with very low
supply current (90 nA typ.)
FSK and ASK demodulation capa-
bility
Fully integrated VCO and PLL
Synthesiser
ASK sensitivity better than
-109 dBm over specified tempera-
ture range (- 40 to +85°C)
Receive frequency range 910 to
920 MHz
Limiter with RSSI generation,
operating at 10.7 MHz
Selectable reference frequency
2nd order low pass data filter with
external capacitors
Data slicer with self-adjusting
threshold
FSK sensitivity better than
-102 dBm over specified tempera-
ture range (- 40 to +85°C)
Application
Keyless Entry Systems
Remote Control Systems
Low Bitrate ISM-band Communica-
tion Systems
Ordering Information
Type
TDA 5212
samples available
Ordering Code
Package
P-TSSOP-28-1
Wireless Components
Product Info
Specification, May 2003