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KESRX01/IG/QP1S Datasheet

  • KESRX01/IG/QP1S

  • 290 - 460MHz ASK Receiver

  • 11頁(yè)

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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鈥揾eterodyne 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鈥揈TS 300 220, and FCC, part 15, can easily be met.
Local oscillator generation is performed by an on鈥揷hip 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鈥揷hip
VCO and IF significantly minimise the external components
needed thus reducing any re鈥搑adiation effects.
IFDC1
IFDC2
IF2
IF1
V
CC
MIXIP
RFOP
VEERF
RFIN
DSN
DATAOP
PEAK
1
2
3
24
23
22
21
20
19
18
17
16
15
14
13
XTAL2
XTAL1
DF2
DF1
DF0
LF
NC
NC
VCO2
VCO1
PD
V
EE
1
5
6
7
8
9
10
11
12
KESRX01
4
QP24
QPA24
Fig. 1 Pin connections - top view
FEATURES
s
Very low supply current (2.30mA typical)
s
Low external part count
s
鈥?05dBm sensitivity (typical 315MHz)
s
Integrated VCO and IF Filters.
ORDERING INFORMATION
KESRX01/IG/QP1T (Tape and Reel)
KESRX01/IG/QP1S (Tubes)
DF2
DF1
DF0
ABSOLUTE MAXIMUM RATINGS
All voltages relative to V
EE
(0V)
Junction temperature, Tj
Storage temperature, Tstg
Supply voltage, V
CC
max
Voltage on any pin, Vshort
鈥?5 to +150擄C
鈥?5 to +150擄C
V
CC
鈥?.5 to +8.0 V
鈥?.5 to +8.0V
IF DC1 IF DC2
IF 2
IF 1
MIXIP RFOP
PEAK DETECTOR
PEAK
DATA FILTER
+
DATA SLICER
鈥?/div>
DSN
VCC
VEE1
PD
XTAL
OSCILLATOR
RSSI O/P
LOG
AMP
IF FILTER
600KHz
DATOP
MIXER
DIV 64
PHASE FREQUENCY
DETECTOR
VCO
RFIN
LNA
VEERF
XTAL 1 XTAL 2
LF
VCO 1 VCO 2
Fig. 2. Block diagram

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