Product specification
Supersedes data of 1995 May 18
File under Integrated Circuits, IC18
2000 Apr 18
Page 2
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
FEATURES
• Oscillator with external Surface Acoustic Wave
Resonator (SAWR)
• Wide frequency range from 150 to 450 MHz
• High sensitivity
• Low power consumption
APPLICATIONS
• Car alarm systems
• Remote control systems
• Security systems
• Gadgets and toys
• Telemetry.
• Automotive temperature range
• Superheterodyne architecture
• Applicable to fulfil FTZ 17 TR 2100 (Germany)
• High integration level, few external components
• Inexpensive external components
• IF filter bandwidth determined by application.
GENERAL DESCRIPTION
The UAA3201T is a fully integrated single-chip receiver,
primarily intended for use in VHF and UHF systems
employing direct AM Return-to-Zero (RZ) Amplitude Shift
Keying (ASK) modulation.
UAA3201TSO16plastic small outline package; 16 leads; body width 3.9 mmSOT109-1
2000 Apr 182
Page 3
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
BLOCK DIAGRAM
V
C19
C12
CC
C17
R1
101112
handbook, full pagewidth
RF_IN
V
EMMIXIN
IF FILTER
FA13LINLFB CPCCPO
161415
IF AMPLIFIER
×
MIXER
BUFFER
V
OSCILLATOR
OSCOSEMONMOPCPACPB
C7
PINNING
SYMBOLPINDESCRIPTION
MON1negative mixer output
MOP2positive mixer output
V
CC
3positive supply voltage
OSC4oscillator collector
OSE5oscillator emitter
V
EE
6negative supply voltage
CPB7comparator input B
CPA8comparator input A
DATA9data output
CPO10comparator offset adjustment
CPC11comparator input C
LFB12limiter feedback
LIN13limiter input
MIXIN14mixer input
V
EM
15negative supply voltage for mixer
FA16IF amplifier output
CC
LIMITER
BAND GAP
REFERENCE
V
ref
345 12
V
Fig.1 Block diagram.
CC
BUFFER
UAA3201T
V
EE
COMPARATOR
768
C13
UAA3201T
MED897
MON
MOP
V
CC
OSC
OSE
V
EE
CPB
CPA
C14
1
2
3
4
5
6
7
8
Fig.2 Pin configuration.
DATA
9
data
MHB679
16
FA
15
V
EM
14
MIXIN
13
LIN
12
LFB
11
CPC
10
CPO
9
DATA
2000 Apr 183
Page 4
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
FUNCTIONAL DESCRIPTION
The RF signal is fed directly into the mixer stage where it
is mixed down to nominal 500 kHz IF by the integrated
oscillator controlledby anexternalSAWR (seeFig.1). The
IF signalisthenpassedtotheIF amplifierwhichincreases
the level. A 5th-order elliptic low-pass filter acts as main
IF filtering. The output voltage of that filter is demodulated
by a limiter that rectifies the incoming IF signal. The
demodulated signal passes two RC filter stages and is
thenlimited by a data comparator which makes it available
at the data output.
Mixer
The mixer is a single balanced emitter coupled pair with
internally set bias current. The optimum impedance is
320 Ω at 430 MHz. Capacitor C5 (see Fig.9) is used to
transform a 50 Ω generator impedance to the optimum
value.
Oscillator
The oscillator consists of a transistor in common base
configuration and a tank circuit including the SAWR.
Resistor R2 (see Fig.9) is used to control the bias current
through the transistor. Resistor R3 is required to reduce
unwanted responses of the tank circuit.
IF amplifier
The IF amplifier is a differential input, single-ended output
emitter coupled pair. It is used to decouple the first and the
second IF filter and to provide some additional gain in
order to reduce the influence of the noise of the limiter on
the total noise figure.
IF filters
The first IF filter is an RC filter formed by internal resistors
and an external capacitor C7 (see Fig.1).
The second IF filter is an external elliptic filter. The source
impedance is 1.4 kΩ and the load is high-impedance. The
bandwidth of the IF filter in the application and test circuit
(see Fig.9) is 800 kHz due to the centre frequency spread
of the SAWR. It may be reduced when SAWRs with less
tolerances are used or temperature range requirements
are lower. A smaller bandwidth of the filter will yield a
higher sensitivity of the receiver. As the RF signal is mixed
down to a low IF signal there is no image rejection
possible.
Limiter
The limiting amplifier consists of three DC coupled
amplifier stages with a total gain of 60 dB. A Received
Signal Strength Indicator (RSSI) signal is generated by
rectifying the IF signal. The limiter has a lower frequency
limitof 100 kHz which can be controlled by capacitors C12
and C19. The upper frequency limit is 3 MHz.
Comparator
The2 × IF component in the RSSI signalisremoved by the
first order low-pass capacitor C17. After passing a buffer
stage the signal is split into two paths, leading via
RC filters to the inputs of a voltage comparator. The time
constant of one path (C14) is compared to the bit duration.
Consequently the potential at the negative comparator
input represents the average magnitude of the RSSI
signal. The second path with a short time constant (C13)
allows the signal at the positive comparator input to follow
the RSSI signal instantaneously. This results in a variable
comparator threshold, depending on the strength of the
incoming signal. Hence the comparator output is switched
on, when the RSSI signal exceeds its average value, i.e.
when an ASK ‘on’ signal is received.
The low-pass filter capacitor C13 rejects the unwanted
2 × IF component and reduces the noise bandwidth of the
data filter.
The resistor R1 is used to set the current of an internal
source. This current is drawn from the positive comparator
input,therebyapplyinganoffsetanddriving the output into
the ‘off’ state during the absence of an input signal. This
offset can be increased by lowering the value of R1
yieldinga higher noise immunity at the expenseofreduced
sensitivity.
Band gap reference
The band gap reference controls the biasing of the whole
circuit. In this block currents are generated that are
constant over the temperature range and currents that are
proportional to the absolute temperature.
The current consumption of the receiver rises with
increasing temperature, because the blocks with the
highest current consumption are biased by currents that
are proportional to the absolute temperature.
2000 Apr 184
Page 5
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
V
CC
T
amb
T
stg
V
es
Note
1. Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 kΩ series resistor.
spurious radiationnote 2−−−60dBm
interception point (mixer)−20−17−dBm
interception point (mixer plus IFamplifier)−38−35−dBm
1 dB compression point (mixer)−38−35−dBm
receiver turn-on timenote 3−−10ms
INTERNAL PIN CONFIGURATION
PINSYMBOLEQUIVALENT CIRCUIT
1MON
2MOP
1
2
3V
CC
3
MHB681
4OSC
5OSE
4
1.5
kΩ
V
CC
V
P
1.5
kΩ
from
oscillator
buffer
MHB680
V
P
2000 Apr 186
5
6 kΩ
1.2 V
MHB682
Page 7
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
PINSYMBOLEQUIVALENT CIRCUIT
6V
EE
6
MHB683
7CPB
8CPA
9DATA
10CPO
V
P
150 kΩ
7
8
1 kΩ
9
150 kΩ
MHB684
V
P
MHB686
V
P
11CPC
2000 Apr 187
10
MHB685
V
P
30 kΩ
11
MHB704
Page 8
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
PINSYMBOLEQUIVALENT CIRCUIT
12LFB
13LIN
14MXIN
15V
EM
50
kΩ
12
13
14
V
P
MHB687
16FA
15
1.4 kΩ
16
MHB688
V
P
MHB689
TEST INFORMATION
Tuning procedure for AC tests
1. Turn on the signal generator: f
= 433.92 MHz, no modulation and RF input level=1mV.
i(RF)
2. Tune capacitor C6 (RF stage input) to obtain a maximum voltage on pin LIN.
3. Check that data is appearing on pin DATA and proceed with the AC tests.
AC test conditions
The reference signal level P
for the following tests is defined as the minimum input level in dBm to give a
ref
BER ≤ 3 × 10−2 (e.g. 7.5 bit errors per second for 250 bits/s).
2000 Apr 188
Page 9
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
Table 1 Test signals
TEST
SIGNAL
1433.92250 bits/s
FREQUENCY
(MHz)
DATA SIGNALMODULATION
RZ signal with duty cycle of 66% for logic 1;
(square wave)
RZ signal with duty cycle of 33% for logic 0
MODULATION
INDEX
100%
2434.02−no modulation−
3433.92−no modulation−
Test results
P
is the maximum available power from signal generator 1 at the input of the test board; P2 is the maximum available
1
power from signal generator 2 at the input of the test board.
Table 2 Test results
GENERATOR
TEST
RESULT
12
Maximum input power;
see Fig.4
Receiver turn-on time;
see Fig.4 and note 1
Interception point (mixer);
see Fig.5 and note 2
Interception point (mixer plus
IF amplifier); see Fig.5 and
note 3
Spurious radiation; see Fig.6
and note 4
1 dB compression point
(mixer);
see Fig.7 and note 5
test signal 1;
= −30 dBm
P
1
(minimum P
test signal 1;
P
1=Pref
+10dB
test signal 3;
= −50 dBm
P
1
test signal 3;
P
= −50 dBm
1
max
−BER ≤ 3 × 10
(e.g. 7.5 bit errors per second for 250 bits/s)
)
−check that the first 10 bits are correct; error counting is
started 10 ms after VCC is switched on
Typeone-port (e.g. RFM R02112)
Centre frequency433.42 MHz ±75 kHz
Maximum insertion loss1.5 dB
Typical loaded Q1600 (50 Ω load)
Temperature drift0.032 ppm/K
2
Turnover temperature43 °C
2000 Apr 1813
Page 14
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
MBE589
RF_IN
data
n.c.
H4ACS15
UAA3201T
Fig.10 Layout top side.
MBE591
PCALH/H4ACS15
Fig.11 Layout bottom side.
2000 Apr 1814
H4ACS15
Page 15
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
MBE590
RF_IN
C5
C4
L3
C19
L2
n.c.
C6
C15
L1
C12 C17
IC1
R1
SAWR
DATA
C13
C14
data
H4ACS15
supply
UAA3201T
Fig.12 Top side with components.
Fig.12 Top side with components.
C11
C10
C9
C21
R2
C18
C8
C2
C16
R3
L4
C20
C7
C1
MBE592
C3
PCALH/H4ACS15
Fig.13 Bottom side with components.
2000 Apr 1815
H4ACS15
Page 16
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
PACKAGE OUTLINE
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
Z
16
pin 1 index
1
D
c
y
9
A
2
A
1
8
e
w M
b
p
E
H
E
detail X
A
X
v M
A
Q
(A )
L
p
L
A
3
θ
02.55 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
mm
inches
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
A
max.
1.75
0.069
OUTLINE
VERSION
SOT109-1
A1A2A
0.25
1.45
0.10
1.25
0.010
0.057
0.004
0.049
IEC JEDEC EIAJ
076E07 MS-012
0.25
0.01
b
3
p
0.49
0.25
0.36
0.19
0.0100
0.019
0.0075
0.014
(1)E(1)(1)
cD
10.0
4.0
3.8
0.16
0.15
1.27
0.050
9.8
0.39
0.38
REFERENCES
2000 Apr 1816
eHELLpQZywv θ
1.05
0.041
1.0
0.4
0.039
0.016
0.7
0.25
0.6
0.028
0.010.004
0.020
EUROPEAN
PROJECTION
0.250.1
0.01
0.7
0.3
0.028
0.012
ISSUE DATE
97-05-22
99-12-27
o
8
o
0
6.2
5.8
0.244
0.228
Page 17
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
SOLDERING
Introduction to soldering surface mount packages
Thistextgives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
“Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011).
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering is not always suitable
for surface mount ICs, or for printed-circuit boards with
high population densities. In these situations reflow
soldering is often used.
Reflow soldering
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
totheprinted-circuitboardbyscreenprinting,stencillingor
pressure-syringe dispensing before package placement.
Several methods exist for reflowing; for example,
infrared/convection heating in a conveyor type oven.
Throughput times (preheating, soldering and cooling) vary
between 100 and 200 seconds depending on heating
method.
Typical reflow peak temperatures range from
215 to 250 °C. The top-surface temperature of the
packages should preferable be kept below 230 °C.
• Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
• For packages with leads on two sides and a pitch (e):
– larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the
transport direction of the printed-circuit board;
– smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the
printed-circuit board.
The footprint must incorporate solder thieves at the
downstream end.
• Forpackages with leads on four sides, thefootprintmust
be placed at a 45° angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Typical dwell time is 4 seconds at 250 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Manual soldering
Wave soldering
Conventional single wave soldering is not recommended
forsurface mount devices (SMDs) or printed-circuit boards
with a high component density, as solder bridging and
non-wetting can present major problems.
To overcome these problems the double-wave soldering
method was specifically developed.
If wave soldering is used the following conditions must be
observed for optimal results:
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300 °C.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 to 5 seconds between
270 and 320 °C.
2000 Apr 1817
Page 18
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
Suitability of surface mount IC packages for wave and reflow soldering methods
1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the
2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink
(at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).
3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm;
it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is
definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
2000 Apr 1818
Page 19
Philips SemiconductorsProduct specification
UHF/VHF remote control receiverUAA3201T
DATA SHEET STATUS
DATA SHEET STATUS
Objective specificationDevelopmentThis data sheet contains the design target or goal specifications for
Preliminary specificationQualificationThis data sheet contains preliminary data, and supplementary data will be
Product specificationProductionThis data sheet contains final specifications. Philips Semiconductors
Note
1. Please consult the most recently issued data sheet before initiating or completing a design.
DEFINITIONS
Short-form specification The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
attheseor at any other conditions above those given in the
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Application information Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
norepresentation or warranty that suchapplicationswill be
suitable for the specified use without further testing or
modification.
PRODUCT
STATUS
DEFINITIONS
product development. Specification may change in any manner without
notice.
published at a later date. Philips Semiconductors reserves the right to
make changes at any time without notice in order to improve design and
supply the best possible product.
reserves the right to make changes at any time without notice in order to
improve design and supply the best possible product.
DISCLAIMERS
Life support applications These products are not
designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips
Semiconductorscustomers using or selling theseproducts
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes Philips Semiconductors
reserves the right to make changes, without notice, in the
products, including circuits, standard cells, and/or
software, described or contained herein in order to
improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for
theuse of any of these products, conveysnolicenceor title
under any patent, copyright, or mask work right to these
products,andmakesno representations or warranties that
these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified.
(1)
2000 Apr 1819
Page 20
Philips Semiconductors – a w orldwide compan y
Argentina: see South America
Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140,
United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. +1 800 234 7381, Fax. +1 800 943 0087
Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,
Tel. +381 11 3341 299, Fax.+381 11 3342 553
For all other countries apply to: Philips Semiconductors,
International Marketing & Sales Communications, Building BE-p, P.O. Box 218,
5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
2000
Internet: http://www.semiconductors.philips.com
69
Printed in The Netherlands03/pp20 Date of release: 2000 Apr 18Document order number: 9397 750 06929
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