KESRX01 Datasheet, PDF (1/11 Pages) Zarlink Semiconductor Inc – 290 - 460MHz ASK Receiver

KESRX01
290 - 460MHz ASK Receiver
Advance Information
DS3968 5.0 March1998
The KESRX01 is a single chip ASK (Amplitude Shift Key)
Receiver IC. It is designed to operate in a variety of low power
radio applications including keyless entry, general domestic
and industrial remote control, RF tagging and local paging
systems.
This single conversion super–heterodyne receiver offers
an exceptionally high level of integration and performance.
The unique architecture enables data rates up to 50Kbits/sec
to be supported. All low power radio regulations, including
ETSI–ETS 300 220, and FCC, part 15, can easily be met.
Local oscillator generation is performed by an on–chip PLL
which uses an external crystal reference oscillator (4.5 to
7.2MHz). All popular radio frequencies (315MHz, 433.92MHz,
etc) can then be supported by simply choosing the appropriate
crystal frequency.
Particular emphasis has been placed on low current
consumption, with pulsed ON/OFF operation allowing <1mA
average current consumption to be achieved. The on–chip
VCO and IF significantly minimise the external components
needed thus reducing any re–radiation effects.
FEATURES
s Very low supply current (2.30mA typical)
s Low external part count
s –105dBm sensitivity (typical 315MHz)
s Integrated VCO and IF Filters.
ORDERING INFORMATION
KESRX01/IG/QP1T (Tape and Reel)
KESRX01/IG/QP1S (Tubes)
IFDC1
1
IFDC2
2
IF2
3
IF1
4
V_CC
5
MIXIP
6
RFOP
7
VEERF
8
RFIN
9
DSN
10
DATAOP
11
PEAK
12
24
XTAL2
23
XTAL1
22
DF2
21
DF1
20
DF0
19
LF
18
NC
17
NC
16
VCO2
15
VCO1
14
PD
13
VEE1
QPA^Q2^P4 ²⁴
Fig. 1 Pin connections - top view
ABSOLUTE MAXIMUM RATINGS
All voltages relative to V _EE (0V)
Junction temperature, Tj
–55 to +150°C
Storage temperature, Tstg
–55 to +150°C
Supply voltage, V _CC max
Voltage on any pin, Vshort
V _CC –0.5 to +8.0 V
–0.5 to +8.0V
DF2
DF1
DF0
PEAK
PEAK DETECTOR
DATA FILTER
IF DC1 IF DC2 IF 2
LOG
AMP
IF 1 MIXIP RFOP
IF FILTER
600KHz
DATOP
DSN
VCC
VEE1
PD
+
DATA SLICER
–
RSSI O/P
XTAL
OSCILLATOR
MIXER
RFIN
DIV 64
PHASE FREQUENCY
DETECTOR
LNA ^VEERF
VCO
XTAL 1 XTAL 2
LF
Fig. 2. Block diagram
VCO 1 VCO 2