RX3400 Low Power ASK Receiver IC
the wireless IC company
HiMARK Technology, Inc. reserves the right to change the product described in this datasheet. All information con-
tained in this datasheet is subject to change without prior notice. HiMARK Technology, Inc. assumes no responsibility
for the use of any circuits shown in this datasheet.
Description
The RX3400 is a low power ASK receiver IC which is fully compatible with the Mitel
KESRX01 IC and is suitable for use in a variety of low power radio applications including
remote keyless entry. The RX3400 is based on a single-conversion, super-heterodyne
receiver architecture and incorporates an entire phase-locked loop (PLL) for precise local
oscillator generation. In addition, the RX3400 provides an RSSI output.
Features
Extremely low power operation
Low external part count
Receiver input frequency: 290 鈥?460 MHz
On-chip VCO with integrated PLL using crystal oscillator reference
PLL power down feature
Integrated IF and data filters
RSSI output
SSOP-24 package (0.64 mm pitch)
Applications
Wireless mouse
Video sender remote controller
Car alarm and home security systems
Block Diagram
24
XTAL2
23
XTAL1
22
DF2
21
DF1
20
DF0
19
DO
18
NC
17
RSSI
16
VCO2
15
VCO1
14
PD
13
VSS1
CHARGE
PUMP
CRYSTAL
OSCILLATOR
DATA FILTER
PFD
VCO
梅
64
LOG
AMP
IF
FILTER
RSSI
PEAK
MIXER
LNA
ASK
REF
ASK
OUT
DETECTOR
1-BIT
COMPARATOR
IF
DC1
IF
DC2
IFIN
MIX
OUT
VCC
MIX
IN
RF
OUT
VSS2
RFIN
PEAK
1
2
3
4
5
6
7
8
9
10
11
12
Page 1
March 2001
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