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STE KSOLUTIONS
BK2x
DATA SHEET
BK2 Series
Module Dimensions
33 mm x 25 mm
TABLE 1 PERFORMANCE DATA BK2x – RECEIVER SECTION
The BK2xx series of modules offers a wide choice of
frequency band selection:
169 MHz , 315 or 434 MHz , 868 or 915 MHz .
The modules are NBFM (Narrow Band Frequency
Modulation) 12.5 or 25 kHz channel separation
programmable and are based on the Analog Devices
AD7021N high performance Narrow-Band Transceiver IC .
The BK2xx complies with the most important Narrow-Band
Standards: ETSI EN300 220 ( v2.3.1), FCC Part 15 – Part 95,
ARIB STD-T67 .
A narrow channel separation together with a high receiver
selectivity allows to obtain an exceptional RF link budget
figure of more then 130 dB for a stable and long range
communication.
A wideband, high efficiency UHF power transistor is
employed to increase the TX output power to over 200mW
(on the Frequency Bands were it is allowed) together with a
low loss low pass filter and antenna T/R Switch.
A TCXO with 2,5 ppm stability over the entire temperature
range assures long term reliability to the wireless radio link.
Frequency
Modulation
Receiver sensitivity
Channel Selectivity
Data rate
Supply current
Supply Voltage
Operating temperature range
Storage temperature range
TABLE 1 PERFORMANCE DATA BK2x – TRANSMITTER SECTION
Frequency
Modulation
Output RF power
Programmable from +10dBm
to +23 dBm
Data rate
Supply current
Applications:
- Automatic Meter Reading on 169MHz 200mW
- Tracing & Assett Tracking
- Social Alarms
- Remote Control
- Domotics
BK2 Layout
80 to 650 MHz / 842 to 916 MHz¹
2FSK ÷ GFSK ÷ RCFSK ÷ 3FSK ÷ 4FSK
-122 dBM 1 KBPS with 2FSK Modulation
9 KHz
13,5 KHz
18,5 KHz
Default
1 kbps
Max
18 kbps
Average : 20 mA
Power Down : 100 nA
3.3 VDC ± 5%
-40°C ÷ 85°C
+65°C ÷ 125°C
Supply Voltage
Operating temperature range
Storage temperature range
80 to 650 MHz / 842 to 916 MHz¹
2FSK ÷ GFSK ÷ RCFSK ÷ 3FSK ÷ 4FSK
Typical
+10 dBm
Max
+23 dBm
Default
1 kbps
Max
18 kbps
Active : 25 mA (200mA)
Power Down : 100 nA
3 ÷ 3.6 VDC ± 5%
-40°C ÷ 85°C
+65°C ÷ 125°C
Pin Out
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
STE KSOLUTIONS
BK47L3-G4 – ASK Low current data TRX
DATA SHEET
BK4 Series
BK47L3-G4 ( 433.175 MHz)
Receiver sensitivity
-96 dBm
Transmitter power
20mW
Data rate
9.6 Kb
Supply voltage
2.6 – 5.5 Vdc
Rx current
400 µA
TABLE 1 PERFORMANCE DATA
Modulation
Output RF power
@5V
@3.3V
Receiver sensitivity
Data rate
A new concept of design high speed “SAW” Tx with a
very low current consumption superregenerative Rx
Rx
Tx
Default
Receiver start-up time
T-R switching time
Supply current
Rx @5V
Rx @3V
Tx
Operating temperature range
Dimensions
BK47 SCHEMATIC
GASK
+13 dBm (40mW)
+10 dBm(20mW)
(note 1)
-96 dBm
9.6 kB
64 kB
80 ms
25 ms
550 µA
400 µA
20-35 mA
-20 + 60 °C
19.5 x 30 x 2.5 mm
30
Q5
+R
27,2
100K
XF1
1
Q1
3
Q2
Q3
SUPERREG.
DETECTOR
CASCODE
RF PREAMPL.
LPF
LPF
IC1
IC2
220
OP-AMP
14 RXE
T/R
+Vcc
14
RXE
13
RXD
12
MON
11
HYST
10
12 MON
Q9
Q7
X1
HIGH
STABILITY
SAW RESON.
TXE
9
TXD
11 HYST
Q8
6.8K
10 TXE
10K
9 TXD
1
MODULATION
Circuit notes
1)
15
13 RXD
OSC
ASK
16
3
22K
+T
Q6
2
1M
SWITCH
P.A.
15 +Vcc
2
BPF
2
16 GND
COMP.
6
"SAW" FILTER
19,5
1
2,3
ANT.
input
(50 ohm)
Table 2 – BK4x Versions
Receiver hysteresis n.11 PIN can be ground
connected to block „RXD“ random output pulses
in absence of received RF signal (at the expense of
reduced sesitivity and data speed).
model
BK47xx
BK48xx
frequency
433-435 MHz
868-870 MHz
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
STE KSOLUTIONS
BK48L3-M2 – ASK Low current data TRX
DATA SHEET
BK4 Series
BK48L3-M2 ( 868.350 MHz)
Receiver sensitivity
-96 dBm
Transmitter power
25mW
Data rate
9.6 Kb
Supply voltage
2.4 – 5.5 Vdc
Rx current
400 µA
TABLE 1 PERFORMANCE DATA
Modulation
Output RF power
Receiver sensitivity
Data rate
A new concept of design high speed “SAW” Tx with a
very low current consumption superregenerative Rx
GASK
+14 dBm (25 mW)
+12 dBm(15 mW)
(note 1)
-96 dBm
9.6 kB
38.4 kB
80ms
25 ms
550 µA
400 µA
20-40 mA
-20 + 60 °C
19.5 x 30 x 2.5 mm
@5V
@3.3V
Rx
Tx
Default
Receiver start-up time
T-R switching time
Supply current
Rx @5V
Rx @3V
Tx
Operating temperature range
Dimensions
BK47 SCHEMATIC
30
27,2
Q5
+R
100K
XF1
3
Q2
Q3
SUPERREG.
DETECTOR
CASCODE
RF PREAMPL.
LPF
LPF
IC1
IC2
220
OP-AMP
1M
14 RXE
T/R
+T
12 MON
Q9
X1
RXE
13
RXD
12
MON
11
HYST
HIGH
STABILITY
SAW RESON.
TXE
9
TXD
11 HYST
Q8
6.8K
10 TXE
10K
9 TXD
1
MODULATION
Circuit notes
1)
+Vcc
14
10
Q7
ASK
15
13 RXD
OSC
Q6
16
3
22K
SWITCH
P.A.
15 +Vcc
2
2
Q1
6
BPF
2
1
16 GND
COMP.
19,5
"SAW" FILTER
1
2,3
ANT.
input
(50 ohm)
Table 2 – BK4x Versions
Receiver hysteresis n.11 PIN can be ground
connected to block „RXD“ random output pulses
in absence of received RF signal (at the expense of
reduced sesitivity and data speed).
model
BK47xx
BK48xx
frequency
433-435 MHz
868-870 MHz
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
STE KSOLUTIONS
BK57
DATA SHEET
BK5 Series
BK57F3xx
434MHz SRD Band
Receiver sensitivity
-106 dBm
Transmitter power
40mW
Data rate
64kB
Supply voltage
2.6 – 5.5 Vdc
TABLE 1 PERFORMANCE DATA – Mod. BK57F3-G5
Low cost, high performances data transceiver based
on TDA5255 by Infineon (www.infineon.com)
The good performances of the IC are further
enhanced by a power amplifier to increase RF output.
Refer to TDA5255 Data Sheet par. 3.11 for the
“Default” setup and performances.
Through the I2C port it is possible to read IC1 internal
registers and/or program different operating modes.
For applications in battery operated systems a
reduced current consumption “Self Polling” mode can
be activated with “Receive Data Valid” detection
circuit using RSSI level and datarate detection as
decision criteria.
Frequency
Modulation
Output RF power
@5V
@3.3V
FSK – 9.6 KB
Default
Max
Receiver sensitivity
Data rate
System setup time
T-R switching time
R-T switching time
Supply current
Rx
Tx
Operating temperature range
Dimensions
434.175 MHz
FSK
+16dBm (40mW)
+13dBm(20mW)
-106 dBm
9.6 kB
64 kB
8ms
2.6 ms
1.1 ms
9mA
20-35mA
-20 + 60 °C
20.5 x 32 x 2.5 mm
BK57 SCHEMATIC
Circuit notes
Table 2 – BK5x Versions / IC1 Type
1) n°7 Terminal (PWD-DD) must be ground connected for
normal operation. IC1 n° 27 pin is internally pulled high via a
30 KΩ resistor.
2) IC1 n°2 Pin (BUSMODE) is ground connected to support
the I2C 2 wires protocol.
model
BK57xx
BK58xx
BK59xx
BK55xx
frequency
433-435 MHz
868-870 MHz
910-920 MHz
312-325 MHz
IC1 Type
TDA 5255
TDA 5250
TDA 5252
TDA 5251
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
Date 02-25-09
Data sheet Bk5
STE KSOLUTIONS
BK58
DATA SHEET
BK5 Series
BK58F3xx
868MHz SRD Band
Receiver sensitivity
-106 dBm
Transmitter power
60mW
Data rate
64kB
Supply voltage
2.6 – 5.5 Vdc
TABLE 1 PERFORMANCE DATA – Mod. BK58F3-M2
Low cost, high performances data transceiver based
on TDA5250 by Infineon (www.infineon.com)
The good performances of the IC are further
enhanced by a power amplifier to increase RF output.
Refer to TDA5250 Data Sheet par. 3.11 for the
“Default” setup and performances.
Through the I2C port it is possible to read IC1 internal
registers and/or program different operating modes.
For applications in battery operated systems a
reduced current consumption “Self Polling” mode can
be activated with “Receive Data Valid” detection
circuit using RSSI level and datarate detection as
decision criteria.
Frequency
Modulation
Output RF power
@5V
@3.3V
FSK – 9.6 KB
Default
Max
Receiver sensitivity
Data rate
System setup time
T-R switching time
R-T switching time
Supply current
Rx
Tx
Operating temperature range
Dimensions
868,350 MHz
FSK
+17.5dBm (60mW)
+14dBm(25mW)
-106 dBm
9.6 kB
64 kB
8ms
2.6 ms
1.1 ms
9mA
20-40mA
-20 + 60 °C
20.5 x 32 x 2.5 mm
BK58 SCHEMATIC
Circuit notes
Table 2 – BK5x Versions / IC1 Type
1) n°7 Terminal (PWD-DD) must be ground connected for
normal operation. IC1 n° 27 pin is internally pulled high via a
30 KΩ resistor.
2) IC1 n°2 Pin (BUSMODE) is ground connected to support
the I2C 2 wires protocol.
3) n°2 Terminal (+PA) can be supplied with 8VDC to obtain
100mW RF output power (only mod. BK58F8-M8 , 869.550
MHz , REC 70-03 Annex 1 Band g3).
model
BK57xx
BK58xx
BK59xx
BK55xx
frequency
433-435 MHz
868-870 MHz
910-920 MHz
312-325 MHz
IC1 Type
TDA 5255
TDA 5250
TDA 5252
TDA 5251
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
Date 02-25-09
Data sheet Bk5
STE KSOLUTIONS
BK67
DATA SHEET
BK6 Series
General Description
The BK67F5 is a synthesized UHF transceiver for use in
wireless data transmission applications. The transceiver
operates on the 433.05 – 434.79 MHz ISM band and it is
designed to comply to the European Standards EN 300220-3 and EN 301-489-3 , in accordance with the CEPTERC-REC 70-03 recommendation (Annex 1 – Non Specific
Short Range Devices ). Together with a precision and low
phase-noise crystal controlled PLL architecture, the
transceiver has high reception sensitivity (-105 dBm) and
high RF output power ( 20 mW ) . High RF output power
allows to employ poor efficiency antennas ( helical, patch,
loop or a trace on a PCB) to remain under legal 10 mW ERP
( Effective Radiated Power ) limit. The BK67F5 is designed
to be directly interfaced to a microcontroller (MCU) to
control and to monitor the receive and transmit mode and
to program (through a 3 wires serial interface ) the
appropriate Rx and Tx frequencies. In a typical application
the MCU manages also the communication protocol i.e.
the switching between transmit and receive mode , the
preamble , the start byte, the bit encoding and decoding
and other important operations
TABLE 1 – BK67 VERSIONS
BK67F5 (1)
433.050 – 434.790 MHz
20 mW
5VDc
BK67F3 (1)
433.050 – 434.790 MHz
15 mW
3VDc
Note (1)
STANDARD VERSIONS WITH EX STOCK AVAILABILITY.
PLEASE CONTACT THE FACTORY FOR SAMPLES AND AVAILABILITY OF NON STANDARD VERSIONS.



PLL Synthesized
Data rate to 64 KB
-106dbm Rx Sensitivity
OPZ. MICRO BOARD
LPD DATA TRANSCEIVER
1
+Vcc
CER. FILTER
XF2
XF3 (10.7 MHz)
+3VR
+3VR
Q1
RF AMPL.
+5VT
P.A.
ANT.
LPF
T/R
5 RXE
IC1
MIXER-IF-DISCR.
Q2
XF1
LPF
Q3-Q4
RF AMPL.
+5VT
D C B
O.L.
AMPL.
Q9
4
X4 CER. DISCR.
A
DATA
SLICER
D3A
D3B
Q8
MICROCHIP
PIC16C505
BPF
3 TXE
+3VR
SAW FILTER
CHANNEL
SELECT
RV1
PLL-VCO UNIT
+3V
IC4
+3V
+3VR
MODUL.
CL
Q5
10K
Q12
+5V
LDO
Q10
D4A
3.3K
+5VT
RXE
Q11
4.7K
D4B
TXE
PLL PROGRAMMING DATA
INPUT (CLOCK, DATA, LATCH EN.)
AND LOCK DETECT OUTPUT
1 +Vcc
+ Vcc
2 GND
6.8K
X5
FREQ.
ADJ.
12
IC2A
SQUELCH
LEVEL
IC3
LPF
9 LD
6.8K
Q7
8
11 DA
COMP.
+3V
BUFFER
7
10 LE
IC2B
VCO
6
S1
DIODE
SWITCH
Q6 D2
2
Q13
GAUSSIAN FILTER
3 TXE
TX ENABLE
4 TXD
TX DATA INPUT
5 RXE
RX ENABLE
6 RXD
RX DATA OUT
7 RSSI
"S" LEVEL
8 MON
RX MONITOR OUT
9 LD
LOCK DETECT
6.8K
10 LE
PLL LATCH ENABLE
11 DA
PLL DATA
12 CL
PLL CLOCK
Fig. 1: Functional block diagram.
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
3,5
4,5
MICROPIC OPZ. MODULE
1,8
15
24,5
1
14,7
2,54
27,5
J1
2
PIN 1
2,7
4,2
22
24
11
J2
TP1
8
SQUELCH
LEVEL
ADJ.
FREQ.
ADJ.
PIN12
11,8
13
27,5
23
57
Optional microboard.
An optional small C board ( Micropic Module – part.n° 015917) can be directly mounted on the transceiver J1 connector.
The Micropic Module eliminates the necessity of an external programming of Tx and Rx frequencies. Up to 16 factory pre-programmed RF channels
can be easily selected by means of a four positions dip–switch.
TYPICAL MCU INTERFACE
J1
+5 VDC ±5%
1
2
J2
3
4
5
6
7
8
9
10
11
12
TXE
TXD
RXE
RXD
RSSI
MON
LD(1)
LE
TX ENABLE
TX DATA
RX ENABLE
RX DATA
10 uF
MCU
LOCK DETECT
LATCH ENABLE
DATA
CLOCK
DA
CL
(1) OPTIONAL
Fig. 4 - J1 pin connections
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
BK67F5
Specifications
Min
Typ
Max
Units
Notes
436.000
MHz
(1)
GENERAL
FREQUENCY RANGE
432.000
CHANNEL SPACING
150
200
FREQUENCY PROGR. STEP
25
50
100
±4
±7
KHz
64
Kbaud
FREQUENCY STABILITY
DATA RATE
7.2
ANTENNA IMPEDANCE
KHz
50
SUPPLY VOLTAGE
4.75
KHz

5
5.25
V
SUPPLY CURRENT - SLEEP
1
10
µA
SUPPLY CURRENT - Rx MODE
21
24
mA
SUPPLY CURRENT - Tx MODE
30
35
mA
- 20
+ 60
°C
15
20
mW
OPERATING TEMPERATURE
(2)
TRANSMITTER
RF OUTPUT POWER
SPURIOUS EMISSION
MODULATION FREQUENCY
3.5
(3)
- 50
dBc
32
KHz
(4)
FM DEVIATION
30
KHz
(4)
R/T SWITCHING TIME
2
ms
(5)
CHANNEL SWITCHING TIME
1
ms
(5)
- 106
dBm
RECEIVER
SENSITIVITY
- 102
SELECTIVITY
40
IMAGE REJECTION
50
DYNAMIC RANGE
30
- 115
- 110
(6)
dB
100
SQUELCH LEVEL ADJ. RANGE
dB
dB
- 70
dBm
T/R SWITCHING TIME
1.5
ms
(5)
CHANNEL SWITCHING TIME
500
µs
(5)
DIMENSIONS
57 x 24 x 4.5 mm
WEIGHT
10 g
NOTE :
(1) CEPT SRD BAND LIMITS = 433.05 – 434.79 MHz
(2) OVER OPERATING TEMPERATURE RANGE
(3) POWER ON 50  . CEPT MAX ERP = 10 mW
(4) SQUARE WAVE 0-5 Vdc LEVEL
(5) PLL LOCK-UP TIME
(6) AT Fo ± 200 KHz
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
STE KSOLUTIONS
BK68
DATA SHEET
BK6 Series
General Description
The BK68F5 is a synthesized UHF transceiver for use in
wireless data transmission applications. The transceiver
operates on the 868 – 870 MHz ISM band and it is
designed to comply to the European Standards EN 300220-3 and EN 301-489-3 , in accordance with the CEPTERC-REC 70-03 recommendation (Annex 1 – Non Specific
Short Range Devices ). Together with a precision and low
phase-noise crystal controlled PLL architecture, the
transceiver has high reception sensitivity (-105 dBm) and
high RF output power ( 40 mW ) . High RF output power
allows to employ poor efficiency antennas ( helical, patch,
loop or a trace on a PCB) to remain under legal 25 mW ERP
( Effective Radiated Power ) limit. The BK68F5 is designed
to be directly interfaced to a microcontroller (MCU) to
control and to monitor the receive and transmit mode and
to program (through a 3 wires serial interface ) the
appropriate Rx and Tx frequencies. In a typical application
the MCU manages also the communication protocol i.e.
the switching between transmit and receive mode , the
preamble , the start byte, the bit encoding and decoding
and other important operations
TABLE 1 – BK68 VERSIONS
BK68F5 (1)
BK68F3 (1)
868 - 870 MHz
868 - 870 MHz
35 mW
25 mW
5VDc
3VDc
Note (1) STANDARD VERSIONS WITH EX STOCK AVAILABILITY.
PLEASE CONTACT THE FACTORY FOR SAMPLES AND AVAILABILITY OF NON STANDARD VERSIONS.



PLL Synthesized
Data rate to 64 KB
-106dbm Rx Sensitivity
OPZ. MICRO BOARD
LPD DATA TRANSCEIVER
1
+Vcc
CER. FILTER
XF2
XF3 (10.7 MHz)
+3VR
+3VR
Q1
RF AMPL.
+5VT
P.A.
ANT.
LPF
T/R
5 RXE
IC1
MIXER-IF-DISCR.
Q2
XF1
LPF
Q3-Q4
RF AMPL.
+5VT
D C B
O.L.
AMPL.
Q9
4
X4 CER. DISCR.
A
DATA
SLICER
D3A
D3B
Q8
MICROCHIP
PIC16C505
BPF
3 TXE
+3VR
SAW FILTER
CHANNEL
SELECT
RV1
PLL-VCO UNIT
+3V
IC4
+3V
+3VR
MODUL.
CL
Q5
10K
Q12
+5V
LDO
Q10
D4A
3.3K
+5VT
RXE
Q11
4.7K
D4B
TXE
PLL PROGRAMMING DATA
INPUT (CLOCK, DATA, LATCH EN.)
AND LOCK DETECT OUTPUT
1 +Vcc
+ Vcc
2 GND
6.8K
X5
FREQ.
ADJ.
12
IC2A
SQUELCH
LEVEL
IC3
LPF
9 LD
6.8K
Q7
8
11 DA
COMP.
+3V
BUFFER
7
10 LE
IC2B
VCO
6
S1
DIODE
SWITCH
Q6 D2
2
Q13
GAUSSIAN FILTER
3 TXE
TX ENABLE
4 TXD
TX DATA INPUT
5 RXE
RX ENABLE
6 RXD
RX DATA OUT
7 RSSI
"S" LEVEL
8 MON
RX MONITOR OUT
9 LD
LOCK DETECT
6.8K
10 LE
PLL LATCH ENABLE
11 DA
PLL DATA
12 CL
PLL CLOCK
Fig. 1: Functional block diagram.
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
3,5
4,5
MICROPIC OPZ. MODULE
1,8
15
24,5
1
14,7
2,54
27,5
J1
2
PIN 1
2,7
4,2
22
24
11
J2
TP1
8
SQUELCH
LEVEL
ADJ.
FREQ.
ADJ.
PIN12
11,8
13
27,5
23
57
Optional microboard.
An optional small C board ( Micropic Module – part.n° 015917) can be directly mounted on the transceiver J1 connector.
The Micropic Module eliminates the necessity of an external programming of Tx and Rx frequencies. Up to 16 factory pre-programmed RF channels
can be easily selected by means of a four positions dip–switch.
TYPICAL MCU INTERFACE
J1
+5 VDC ±5%
1
2
J2
3
4
5
6
7
8
9
10
11
12
TXE
TXD
RXE
RXD
RSSI
MON
LD(1)
LE
TX ENABLE
TX DATA
RX ENABLE
RX DATA
10 uF
MCU
LOCK DETECT
LATCH ENABLE
DATA
CLOCK
DA
CL
(1) OPTIONAL
Fig. 4 - J1 pin connections
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
BK68F5
Specifications
Min
Typ
Max
Units
Notes
871.000
MHz
(1)
GENERAL
FREQUENCY RANGE
867.000
CHANNEL SPACING
150
200
FREQUENCY PROGR. STEP
25
50
100
KHz
±6
±15
KHz
64
Kbaud
FREQUENCY STABILITY
DATA RATE
KHz
7.2
ANTENNA IMPEDANCE
50
SUPPLY VOLTAGE
4.75

5
5.25
V
SUPPLY CURRENT - SLEEP
1
10
µA
SUPPLY CURRENT - Rx MODE
21
24
mA
SUPPLY CURRENT - Tx MODE
40
OPERATING TEMPERATURE
(2)
- 20
48
mA
+ 60
°C
TRANSMITTER
RF OUTPUT POWER
30
SPURIOUS EMISSION
MODULATION FREQUENCY
3.5
40
mW
- 50
dBc
32
(3)
KHz
(4)
FM DEVIATION
30
KHz
(4)
R/T SWITCHING TIME
2
ms
(5)
CHANNEL SWITCHING TIME
1
ms
(5)
RECEIVER
SENSITIVITY
- 102
SELECTIVITY
- 106
dBm
40
30
dB
IMAGE REJECTION
50
dB
DYNAMIC RANGE
100
dB
SQUELCH LEVEL ADJ. RANGE
- 115
- 110
- 70
(6)
dBm
T/R SWITCHING TIME
1.5
ms
(5)
CHANNEL SWITCHING TIME
500
µs
(5)
DIMENSIONS
57 x 24 x 4.5 mm
WEIGHT
10 g
NOTE :
(1) CEPT SRD BAND LIMITS = 868 - 870 MHz
(2) OVER OPERATING TEMPERATURE RANGE
(3)
POWER ON 50  . CEPT MAX ERP SUB BAND
POWER ON 50  . CEPT MAX ERP SUB BAND
POWER ON 50  . CEPT MAX ERP SUB BAND
POWER ON 50  . CEPT MAX ERP SUB BAND
F
G
I
K
(868 – 868,6 MHz)
(868,7 – 869,2 MHz)
(869,4 – 869,65 MHz)
(869,7 – 870 MHz)
= 25 mW
= 25 mW
= 500 mW
= 5 mW
(4) SQUARE WAVE 0-5 Vdc LEVEL
(5) PLL LOCK-UP TIME
(6) AT Fo ± 200 KHz
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
STE KSOLUTIONS
BK77
DATA SHEET
BK7 Series
General Description
The BK77A5 and the BK77B5 are “PLL” synthesized UHF
transceivers for use in Wireless “Voice” ( Analogue Signal )
or Data transmission applications. The transceivers operate
on the 433.05-434.79 MHz ISM Band and are designed to
comply to the European Standards EN 300-220-3 ( class I )
and EN 301-489-3.
The transceivers employ NBFM ( Narrow Band Frequency
Modulation ) with a 25 KHz channel separation.
A) BK77A5
The BK77A5 is designed in accordance with CEPT-ERC/REC
70-03 recommendation ( Annex 1 – Non specific short
range devices ) for applications employing a 10 mW max
radiated power ( ERP ).
Pout
mW
B) BK77B5
The BK77B5 has 500 mW output RF power ( 100mW in “
Low Power” ) and it is programmable from 432 MHz to
436.1 MHz ( to cover also the Italian 436.000-436.100 MHz
telemetry and Data transmission band ).
10
Annex 1 – NON SPECIFIC SHORT RANGE DEVICES
ERP = 10 mW
Duty-cycle < 10%
MHz
6,5
434.75
7,5
433.05
7
16
4
30
42,5
0.5 W OPTIONAL BOOSTER
4 X Ø2,6
5.08
RV1 SQUELCH LEVEL
n.1
1,2
J1
43
50
11
2° L.O.
FREQ.ADJ.
VCO
TUNE
TP1
n.20
FREQ.
ADJ.
RV2 RV3
2,54
2,54
J2
88
95
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
BK77A5 – BK77B5
Specifications
GENERAL
Min
FREQUENCY RANGE
432.000
Typ
CHANNEL SPACING
25
FREQUENCY PROGR. STEP
12.5
FREQUENCY STABILITY
±2.5
DATA RATE ( DATA MODE)
1200
ANTENNA IMPEDANCE
Max
Units
Notes
436.100
MHz
(1)
KHz
KHz
±4
ppm
9600
Baud
7000
Hz
50
FREQ. RESPONSE (VOICE MODE)
100
SUPPLY VOLTAGE
4.75
SUPPLY CURRENT - Rx MODE
SUPPLY CURRENT - Tx MODE :
a) BK77A5 (100 mW)
b) BK77B5 (500 mW)

5
5.25
V
50
60
mA
120
250
OPERATING TEMPERATURE
- 20
(2)
mA
mA
+ 60
DIMENSIONS
95 x 50 x 7.5 mm
WEIGHT
25 g
°C
TRANSMITTER
RF OUTPUT POWER :
BK77A5 low
high
b) BK77B5 low
high
a)
10
80
80
400
SPURIOUS EMISSION
15
100
100
500
-40
mW
mW
mW
mW
(3)
- 36
dBm
5
KHz
10
ms
(4)
3000
5000
4800
Hz
Hz
Hz
(5)
-125
-115
-115
dBm
dBm
dBm
(6)
(6)
(7)
65
70
dB
(8)
50
dB
DYNAMIC RANGE
100
110
dB
BLOCKING
+84
+85
dB
(9)
ms
(4)
FM DEVIATION
R/T SWITCHING TIME
5
MODULATION :
VOICE MODE (PM MOD.)
VOICE MODE (FM MOD.)
DATA MODE (GMSK MOD.)
100
100
DC
RECEIVER
SENSITIVITY :
VOICE MODE (PM MOD.)
VOICE MODE (FM MOD.)
DATA MODE (4800 Baud)
SELECTIVITY
IMAGE REJECTION
T/R SWITCHING TIME
5
10
NOTE :
(1) CEPT SRD BAND LIMITS = 433.05 – 434.79 MHz
(2) OVER OPERATING TEMPERATURE RANGE
(3) CEPT MAX ERP = 10 mW
(4) PLL LOCK-UP TIME
(6) 20dB SINAD – 1KHz dev. 3KHz
(7) 1/10E2 BER
(8) ADJACENT CHANNEL SELECTIVITY
(9) Fc  1 MHz
(5) SQUARE WAVE 0-5 Vdc LEVEL
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
STE KSOLUTIONS
BK78
DATA SHEET
BK7 Series
General Description:
The BK78A5 and the BK78B5 are “PLL” synthesized UHF
transceivers for use in Wireless “Voice” ( Analogue Signal )
or Data transmission applications. The transceivers operate
on the 868-870 MHz ISM Band and are designed to comply
to the European Standards EN 300-220-3 ( class I ) and EN
301-489-3.The transceivers employ NBFM ( Narrow Band
Frequency Modulation ) with a 25 KHz channel separation.
A) BK78A5
The BK78A5 is designed in accordance with CEPT-ERC/REC
70-03 recommendation ( Annex 1 – Non specific short
range devices ) for applications employing a 10 mW or 25
mW max radiated power ( ERP ).
Pout
mW
B) BK78B5
10
The BK78B5 has 500 mW output RF power ( 100mW in “
Low Power” ) and it is programmable from 868 MHz to 870
MHz .
Annex 1 – NON SPECIFIC SHORT RANGE DEVICES
ERP = 10 mW
Duty-cycle < 10%
MHz
6,5
434.75
7,5
433.05
7
16
4
30
42,5
0.5 W OPTIONAL BOOSTER
4 X Ø2,6
5.08
RV1 SQUELCH LEVEL
n.1
1,2
J1
43
50
11
2° L.O.
FREQ.ADJ.
VCO
TUNE
TP1
n.20
FREQ.
ADJ.
RV2 RV3
2,54
2,54
J2
88
95
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com
BK78A5 – BK78B5
Specifications
GENERAL
Min
FREQUENCY RANGE
867.000
Typ
CHANNEL SPACING
25
FREQUENCY PROGR. STEP
12.5
FREQUENCY STABILITY
±2.5
DATA RATE ( DATA MODE)
Units
Notes
MHz
(1)
KHz
KHz
±3
ppm
9600
Baud
7000
Hz
5
5.25
V
50
60
mA
1200
ANTENNA IMPEDANCE
Max
871.000
50
FREQ. RESPONSE (VOICE MODE)
100
SUPPLY VOLTAGE
4.75
SUPPLY CURRENT - Rx MODE
SUPPLY CURRENT - Tx MODE :
a) BK78A5 (100 mW)
b) BK78B5 (500 mW)

120
250
OPERATING TEMPERATURE
- 20
(2)
mA
mA
+ 60
DIMENSIONS
95 x 50 x 7.5 mm
WEIGHT
25 g
°C
TRANSMITTER
RF OUTPUT POWER :
BK78A5 low
high
b) BK78B5 low
high
a)
20
80
80
400
SPURIOUS EMISSION
35
100
100
500
MODULATION :
VOICE MODE (PM MOD.)
VOICE MODE (FM MOD.)
DATA MODE (GMSK MOD.)
(3)
-40
- 36
dBm
5
KHz
5
10
ms
(4)
3000
5000
4800
Hz
Hz
Hz
(5)
-125
-115
-115
dBm
dBm
dBm
(6)
(6)
(7)
70
dB
(8)
50
dB
FM DEVIATION
R/T SWITCHING TIME
mW
mW
mW
mW
100
100
DC
RECEIVER
SENSITIVITY :
VOICE MODE (PM MOD.)
VOICE MODE (FM MOD.)
DATA MODE (4800 Baud)
SELECTIVITY
65
IMAGE REJECTION
DYNAMIC RANGE
100
110
dB
BLOCKING
+84
+85
dB
(9)
ms
(4)
T/R SWITCHING TIME
5
10
NOTE :
(1) CEPT SRD BAND LIMITS = 868 – 870 MHz
(4) PLL LOCK-UP TIME
(2) OVER OPERATING TEMPERATURE RANGE
(5) SQUARE WAVE 0-5 Vdc LEVEL
(3) CEPT MAX ERP SUB BAND F (868-868.6 MHz)
= 25 mW
(6) 20dB SINAD – 1KHz dev. 3KHz
CEPT MAX ERP SUB BAND G (868.7-869.2 MHz) = 25 mW
(7) 1/10E2 BER
CEPT MAX ERP SUB BAND I (869.4-869.65 MHz) = 500 mW
(8) ADJACENT CHANNEL SELECTIVITY
CEPT MAX ERP SUB BAND K (869.7-870 MHz)
= 5 mW
(9) Fc  1 MHz
STE KSOLUTIONS SRL - Via Bistolfi 49–20134- Milano – Italy
+39.02.21592337 - 02.21711809 - 02.26411765 fax +39.02.2640118
[email protected] – www.ste-ksolutions.com