PRODUCT SPECIFICATION
Single chip 433MHz RF Transceiver
FEATURES
•
•
•
•
•
•
True single chip FSK transceiver
On chip UHF synthesiser, 4MHz
crystal reference
433MHz ISM band operation
Few external components required
Up to 10mW transmit power
No setup/configuration
RF0433
APPLICATIONS
•
•
•
•
•
•
•
•
Alarm and Security Systems
Home Automation
Remote Control
Surveillance
Automotive
Telemetry
Toys
Wireless Communication
GENERAL DESCRIPTION
nRF0433 is a true single chip UHF transceiver designed to operate in the 433MHz
ISM (Industrial, Scientific and Medical) frequency band. It features Frequency Shift
Keying (FSK) modulation and demodulation capability. nRF0433 operates at bit rates
up to 9600 bit/s. Transmit power can be adjusted to a maximum of 10dBm. It features
a differential antenna interface and an internal transmit/receive switch. nRF0433
operates from a single +5V DC supply.
As a primary application, nRF0433 is intended for design of UHF transceivers in
compliance with the European Telecommunication Standard Institute (ETSI)
specification EN 300 220-1 V1.2.1.
QUICK REFERENCE DATA
Parameter
Frequency
Modulation
Frequency deviation
Max. RF output power @ 400Ω
Sensitivity @ 400Ω, BR=1200 bps, BER<10
-3
Maximum baud rate
Supply voltage DC
Receive supply current
Transmit supply current @ -2 dBm RF output power
Value
433.936
FSK
±15
10
-103
9600
5
23
33
Unit
MHz
kHz
dBm
dBm
bit/s
V
mA
mA
Table 1. nRF0433 quick reference data.
ORDERING INFORMATION
Type number
nRF0433-IC
nRF0433-EVKIT
Description
20 pin SOIC
Evaluation kit with nRF0433 IC on board
Version
i-2
e-2
Table 2. nRF0433 ordering information.
Nordic VLSI ASA
Revision: 3.2
-
Vestre Rosten 81, N-7075 Tiller, Norway
-
Page 1 of 14
Phone +4772898900
-
Fax +4772898989
February 2000
PRODUCT SPECIFICATION
nRF0433 Single chip RF Transceiver
BLOCK DIAGRAM
DOUT
TXEN
DIN
10
LNA
19
16
ANT1
ANT2
9
15
OSC
PLL
PA
1
20
3
4
5
6
11
RF_PWR
INDUCTOR
FILTER
V
DD
Figure 1. nRF0433 block diagram with external components.
PIN FUNCTIONS
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Name
XC1
VDD
FILT2
FILT1
VCO1
VCO2
VSS
VDD
DIN
DOUT
RF_PWR
VSS
VDD
VSS
ANT2
ANT1
VSS
VDD
TXEN
Pin function
Input
Power
Input
Input
Input
Input
Ground
Power
Input
Output
Input
Ground
Power
Ground
Input/Output
Input/Output
Ground
Power
Input
Description
Crystal oscillator input
Power supply +5V DC
Loop filter ground (0V)
Loop filter
External inductor for VCO
External inductor for VCO
Ground (0V)
Power supply +5V DC
Data input
Data output
Transmitter power setting
Ground (0V)
Power supply +5V DC
Ground (0V)
Antenna terminal
Antenna terminal
Ground (0V)
Power supply +5V DC
Select transmit/receive mode.
TXEN = “1”
⇒
Transmit mode
TXEN = “0”
⇒
Receive mode
Crystal oscillator output
20
XC2
Output
Table 3. nRF0433 pin functions.
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway -
Revision: 3.2
Page 2 of 14
Phone +4772898900 - Fax +4772898989
February 2000
PRODUCT SPECIFICATION
nRF0433 Single chip RF Transceiver
ELECTRICAL SPECIFICATIONS
(VDD = +5V DC, VSS = 0V, f
0
= 433.936MHz, T
A
= -25°C to +75°C)
Symbol
VDD
VSS
I
DD
Parameter (condition)
Min.
Typ.
Max.
Units
P
RF
V
IH
V
IL
V
OH
V
OL
I
H
I
L
f
0
∆f
f
IF
BW
IF
f
XTAL
Z
I
Supply voltage DC
4.75
5
5.25
V
Ground
0
V
Total current consumption
Receive mode
23
mA
Transmit mode @ -2 dBm RF output power
33
mA
10
dBm
Max. RF output power @ 400Ω load
Logic “1” input voltage
V
DD
V
0.7⋅V
DD
Logic “0” input voltage
0
V
0.3⋅V
DD
Logic “1” output voltage (I
OH
= - 1.0mA)
V
DD
V
0.7⋅V
DD
Logic “0” output voltage (I
OL
= 1.0mA)
0
V
0.3⋅V
DD
Logic “1” input current (V
I
= VDD)
±20
µA
Logic “0” input current (V
I
= VSS)
±20
µA
Frequency
433.936
MHz
Modulation
FSK
Frequency deviation
kHz
±15
IF frequency
400
kHz
IF bandwidth
65
85
kHz
Crystal frequency
4.0
MHz
1)
Crystal frequency stability requirement
ppm
±45
-3
-103
dBm
Sensitivity @ 400Ω,BR=9600 bps,BER < 10
Baudrate
9600
bit/s
Antenna port differential impedance
400
Ω
Spurious emission
Compliant with EN 300-220-1 V1.2.1
2)
Table 4. nRF0433 electrical specifications.
1)
2)
Maximum 5dB sensitivity degradation at temperature extremes. See also page 8.
With a PCB loop antenna or a differential to single ended matching network to a 50Ω antenna.
ABSOLUTE MAXIMUM RATINGS
Supply voltages
VDD .............................. - 0.3V to +6V
VSS ................................................ 0V
Input voltage
V
I
......................- 0.3V to VDD + 0.3V
Output voltage
V
O
.....................- 0.3V to VDD + 0.3V
Note: Stress exceeding one or more of the limiting values may cause permanent
damage to the device.
ATTENTION!
Electrostatic Sensitive Device
Observe Precaution for handling.
Power dissipation
P
D
(T
A
=25°C)........................... 250mW
Temperatures
Operating Temperature….-25°C to +85°C
Storage Temperature..- 40°C to +125°C
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway -
Revision: 3.2
Page 3 of 14
Phone +4772898900 - Fax +4772898989
February 2000
PRODUCT SPECIFICATION
nRF0433 Single chip RF Transceiver
PIN ASSIGNMENT
XC1
VDD
FILT2
FILT1
VCO1
VCO2
VSS
VDD
DIN
DOUT
1
2
3
4
5
6
7
8
9
10
20
XC2
19
TXEN
nRF0433
20 pin SOIC
18
VDD
17
VSS
16
ANT1
15
ANT2
14
VSS
13
VDD
12
VSS
11
RF_PWR
Figure 2. nRF0433 pin assignment.
PACKAGE OUTLINE
nRF0433, 20 pin SOIC. (Dimensions in mm.)
20 19 18
E
H
1 2 3
D
A
1
A
e
b
L
α
Package Type
20 pin SOIC
(300 mil)
Min
Max
D
12.60
13.00
E
7.40
7.60
H
10.00
10.65
A
2.35
2.65
A
1
0.10
0.30
e
1.27
b
0.33
0.51
L
0.40
1.27
Copl.
0.10
α
0°
8°
Figure 3. SOIC-20 Package outline.
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway -
Revision: 3.2
Page 4 of 14
Phone +4772898900 - Fax +4772898989
February 2000
PRODUCT SPECIFICATION
nRF0433 Single chip RF Transceiver
IMPORTANT TIMING DATA
Power up time
The time from power is switched on until the synthesised frequency is stable is the
power up time, t
on
. t
on
is 75 ms for nRF0433. Power up time can be reduced if a stable
4MHz reference signal (eg. from the driver pin of an active micro-controller) is
available at the XC1 input when powering up the transceiver. In this case t
on
is 7.5 ms.
Figure 4 shows a circuit diagram of a typical application. Note that these times may
vary depending on the crystal used.
XC2
8.2M
R
micro
controller
X1
X2
nRF0433
CS
XC1
5.6pF
C1
(22pF)
4.0 MHz
C2
(22pF)
Figure 4. nRF0433 with an external reference oscillator (example).
Power up in transmit-mode
To avoid spurious emission outside the ISM-band during power-up of nRF0433, the
TXEN-input must be kept low until the synthesised frequency is stable (t
on
),
see figure 5.
When enabling transmit-mode, no data should be transmitted before the TXEN-input
has been high for at least 3ms (t
data
-t
on
).
V
DD
TXEN
D
IN
t
t
on
t
data
Figure 5. Power up timing diagram for nRF0433
.
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway -
Revision: 3.2
Page 5 of 14
Phone +4772898900 - Fax +4772898989
February 2000
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