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RX3310A UHF ASK Receiver
HiMARK Technology, Inc. reserves the right to change the product described in this datasheet. All information contained 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 RX3310A is a fully integrated, amplitude-shift-keying (ASK) modulation, single chip receiver. It is designed to operate in a variety of low power radio applications. All popular radio frequencies from 250 MHz to 450 MHz may be supported by simply choosing the appropriate external components. Particular emphasis has been placed on low current consumption.
Features
Wide frequency range: 250 MHz to 450 MHz High sensitivity Low power consumption Automotive temperature range High integration level requiring few and inexpensive external components SOP 18L package or SSOP 20L (150 mil) package
Applications
Remote control systems Car alarm and other security systems Baby finder, wireless doorbell, wireless toys
Block Diagram
VCC MIXIN VORF VEE MIXER VIRF LFB VCC LIN CPC
RF AMP BANDGAP REFERENCE BUFFER
LIMITER
IF AMP IF FILTER
COMPARATOR OSC
OSC1
OSC2
FO
CPA CPB
CPO
VSS
DATA
DISABLE
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April 2004
RX3310A
Package and Pin Assignment: SOP 18L or SSOP 20L
SOP 18L package
OSC1 OSC2 FO CPA CPB CPO VSS DATA DISABLE
1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10
VCC MIXIN VORF VEE VIRF LFB VCC LIN CPC
HiMARK RX3310A
SSOP 20L package
OSC2 FO CPA CPB CPO
1 2 3 4 5
20 19 18 17 16 15 14 13 12 11
OSC1 VCC VCC MIXIN VORF VEE VIRF LFB VCC LIN
HiMARK RX3310A
VSS 6 VSS 7 DATA 8 DISABLE 9 CPC 10
Sym bols A A1 A2 b C D
SOP 18L (dimensions in mm) MIN. --0.100 2.190 0.360 0.242 11.46 NOM. ----2.290 0.410 0.250 11.56 MAX. 2.640 --2.390 0.460 0.258 11.66
SOP 18L (dimensions in inch) MIN. --0.004 0.086 0.014 0.007 0.451 NOM. ----0.090 0.016 0.010 0.455 MAX. 0.104 --0.094 0.018 0.013 0.459
SSOP 20L (dimensions in mm) MIN. 1.35 0.1 --0.20 0.19 8.55 NOM. 1.60 --1.45 0.25 ----MAX. 1.75 0.25 --0.30 0.25 8.75
SSOP 20L (dimensions in inch) MIN. 0.053 0.004 --0.008 0.007 0.337 NOM. 0.064 --0.057 0.010 ----MAX. 0.069 0.010 --0.012 0.010 0.344
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RX3310A
SOP 18L (dimensions in mm) MIN. 10.04 7.390 1.220 0.640 0 --NOM. 10.34 7.490 1.270 0.840 ----MAX. 10.64 7.590 1.320 1.040 8 0.050 SOP 18L (dimensions in inch) MIN. 0.395 0.291 0.048 0.025 0 --NOM. 0.407 0.295 0.050 0.033 ----MAX. 0.419 0.299 0.052 0.041 8 0.002 SSOP 20L (dimensions in mm) MIN. 5.80 3.80 --0.40 0 --NOM. ----0.64 ------MAX. 6.20 4.00 --1.27 8 0.10 SSOP 20L (dimensions in inch) MIN. 0.228 0.150 --0.016 0 --NOM. ----0.025 ------MAX. 0.244 0.157 --0.050 8 0.004
Sym bols E E1 e L y
RX3310A Chip Window
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April 2004
RX3310A
Pin Descriptions
Number (18L SOP) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Number (20L SSOP) 20 1 2 3 4 5 6,7 8 9 10 11 12 13 14 15 16 17 18,19
Name OSC1 OSC2 FO CPA CPB CPO VSS DATA DISABLE CPC LIN VCC LFB VIRF VEE VORF MIXIN VCC
I/O IO IO O I I I GND O I I I POWER IO I GND O I POWER Oscillator tank connection Oscillator tank connection IF filter output Comparator input A Comparator input B
Description
Comparator offset adjustment Ground Data output Disable input. See Electrical Characteristics (cont.) on page 6 Comparator input C Limiter input Positive supply voltage Limiter feedback B RF amplifier input (requires external ac decoupling capacitor) Ground for RF amplifier RF amplifier output Mixer input (requires external ac decoupling capacitor) Positive supply voltage
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RX3310A
Absolute Maximum Ratings
VSS = 0 V
Parameter Supply voltage Operating temperature range Storage temperature range Soldering temperature range Soldering time range Symbol VCC TOPR TSTG TSLD tSLD Rating VSS - 0.3 to VSS + 6.0 -60 to 85 -60 to 125 255 10 Unit V
C C C
s
Recommended Operating Conditions
VSS = 0 V
Value min. 2.0 -40 typ. 3.0 25 max. 6.0 85
Parameter Supply voltage range Operating temperature
Symbol VCC TA
Unit V
C
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April 2004
RX3310A
Receiver Characteristics
(VCC = 2.0 to 6.0 V, LO-RF=1.8MHz,All tests at TA = 25 C unless otherwise noted)
Parameter Symbol Condition VCC = 3.0 V, TA = 27 C, AM 99%, sine wave (ASK square wave) Value min. -100
(-104)
typ. -98
(-102)
max.
Unit
Sensitivity Maximum input power Receiver turn-on time
Psens Pin,max tON
dBm -30 5 dBm ms
-35
Electrical Characteristics
(VCC = 3.0 V, VSS = 0 V, All tests at TA = 25 C unless otherwise noted)
Parameter Supply current Standby current Disable pin input logic high Disable pin input logic low Data output logic high Data output logic low
a
Symbol ICC ICC,sb VDIH VDIL VOH VOL
a
Condition
Value min. typ. 3 5 2.0 2.4 0.8
VPP - 0.3 V
b
max. 4.5 10
Unit mA A V V V
DISABLE = high
0.3
V
a. Note: If the Disable pad is connected to an off-chip signal (open), then the pad is internally grounded. b. Note: VPP is the pull-up voltage for open collector data output. It may be as high as 13 V.
Electrical Characteristics (cont.)
(VCC = 5.0 V, VSS = 0 V, All tests at TA = 25C unless otherwise noted)
Parameter Supply current Standby current Disable pin input logic high Disable pin input logic low Data output logic high Data output logic low
a
Symbol ICC ICC,sb VDIH VDIL VOH VOL
a
Condition
Value min. typ. 4.5 5 2.0 2.4 0.8
VPP - 0.3 V
b
max. 5.0 10
Unit mA A V V V
DISABLE = high
0.3
V
a. Note: If the Disable pad is connected to an off-chip signal (open), then the pad is internally grounded. b. Note: VPP is the pull-up voltage for open collector data output. It may be as high as 13 V.
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April 2004
RX3310A
Functional Description
RF amplifier The RF amplifier uses a common emitter configuration with a separate emitter connection (VEE). The input signal (VIRF) should be ac-coupled externally. The output of the amplifier is open collector so that the gain may be set with an external tuned load. Mixer The mixer is doubly-balanced configuration and has an ac-coupled input. Oscillator A balanced oscillator configuration is used with an L-C tank externally connected across the OSC1 and OSC2 pins. The frequency of the oscillator is determined by the external capacitor, C1, and inductor, L1 (please refer to application circuit schematic). IF amplifier The IF amplifier is a differential input, single-ended output emitter-coupled pair. It is used to provide additional gain in order to reduce the influence of the noise of the succeeding limiter amplifier on the total receiver noise figure. IF filter To minimize external component costs, an active IF filter is fully integrated. Limiter The limiting amplifier consists of several dc-coupled amplifier stages and outputs an RSSI signal. Comparator Following the limiting amplifier, the RSSI signal is passed through an additional buffer stage and is then fed to the comparator's positive and negative terminals, which possess different R-C filter time constants. A larger off-chip capacitor is used at the negative comparator input and hence, its terminal voltage represents the average value of the RSSI signal. A smaller off-chip capacitor is used at the positive comparator input and this allows the positive input to follow the RSSI signal instantaneously. When the received RSSI signal exceeds its average value (when an ASK on signal is received), the comparator output is switched on. Band gap reference A band gap reference provides precise biasing of the entire chip over temperature.
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April 2004
RX3310A
Application Circuit SOP 18L
VCC
C14
*note
Ct1 Ct2
R5 C1 L1 C2 OSE OSC VCC MIXIN L2 C12 ANTENNA
RX3310A
FO C3 VCC R1 C4 CPA CPB CPO DISABLE VSS DATA Disable
VoRF VEE ViRF L3 LFB VCC LIN CPC C5 C7 C9 C10 C8
Data out
* note:Ct1,Ct2 are added for the temperature compensation. Not necessary.
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April 2004
RX3310A External Components
Component C1 C2 C3 C4 C5 C7 C8 C9 C10 C12 C14 Ct1 Ct2 R1 R5 L1 L2 L3 Frequency Band (MHz) 303 6.8 68 470 1 470 10 2.2 1.8 22 82 1 3 8.2 100 1 2.5 100 33 315 6.8 68 470 1 470 10 1.8 1.5 18 82 1 3 8.2 100 1 2.5 100 33 418 6.8 68 470 1 470 10 1.8 1.2 22 82 1 3 8.2 100 1 1.5 100 18 434 5.6 68 470 1 470 10 1.5 1.2 10 82 1 3 8.2 100 1 1.5 82 18 Unit pF pF pF F pF nF pF pF pF pF F pF pF K T nH nH +/-5% +/-5% Tolerance +/-0.5pF +/-5% +/-10% +/-10% +/-10% +/-10% +/-0.25pF +/-0.25pF +/-5% +/-5% +/-10% Remark TC=NPO TC=NPO TC=X7R TC=Y5V TC=X7R TC=X7R TC=NPO TC=NPO TC=NPO TC=NPO TC=Y5V GRM4DUJ030C50 TC=NPO TC=+/-200 ppm TC=+/-200 ppm tunable
note: All components are SMD 0805 type.
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April 2004
RX3310A
Evaluation Board Layout (Example)
1. From top to bottom: Component side of printed-circuit board, top side, bottom side. 2. Copy this page by the factor of 50%, the real size printed-circuit board is available.(Real-size:11.8mm*43.5mm) 3. Suggested board material: FR4, thickness: 0.8mm
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April 2004
RX3310A
Application Circuit SSOP 20L
Ct1 C1 L1 Ct2 VCC C12
C11
1 OSC2
2 FO
OSC1 20 C13 VCC 19 VCC 18
C3
3 CPA
C4
C10
4 CPB
L3
MIXIN 17
R2
RX3310A
5 CPO
VORF 16
6 VSS
VEE 15
C9
L2 VIRF 14
C8
ANT
VCC R1 DATA
7 VSS
8 DATA
C7
LFB 13
DISABLE
9 DISABLE
LFA 12
10 CPC
LIN 11 C6
C5
C2
* note:Ct1,Ct2 are added for the temperature compensation. Not necessary.
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April 2004
RX3310A External Components
Component C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 Ct1 Ct2 R1 R2 L1 L2 L3 100 680 2.5 100 100 100 680 1.5 56 68 K T nH nH +/-5% +/-5% TC=+/-200 ppm TC=+/-200 ppm tunable Frequency (MHz) 315 8.2 100 560 1 1 10 10 100 4.7 100 10 3.3 470 434 6.8 100 560 1 1 10 10 100 8.2 120 10 3.3 470 Unit pF pF pF F nF nF nF pF pF pF nF uF pF Tolerance +/-0.5pF +/-5% +/-10% +/-10% +/-10% +/-10% +/-10% +/-0.25pF +/-0.25pF +/-5% +/-10% +/-10% +/-10% Remark TC=NPO TC=NPO TC=X7R TC=Y5V TC=X7R TC=X7R TC=X7R TC=NPO TC=NPO TC=NPO TC=X7R TC=Y5V TC=X7R
note: All components are SMD 0603 type. * note:Ct1,Ct2 are added for the temperature compensation. Not necessary.
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April 2004
RX3310A
Evaluation Board Layout (Example)
RX3310A PCB Top Layer
RX3310A PCB Bottom Layer
1. From top to bottom: Component side of printed-circuit board, top side, bottom side. 2. The PCB protel file is available. The real size printed-circuit board is available.(Real-size:1753 mil*934mil) 3. Suggested board material: FR4, thickness: 1.0mm
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April 2004

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