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Murata Manufacturing Electronic Components Datasheet

DR4000 Datasheet

Transmitter Module

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• Designed for Short-Range Wireless Data Communications
• Supports up to 115.2 kbps Encoded Data Transmissions
• 3 V, Low Current Operation plus Sleep Mode
• Ready to Use OEM Module
The DR4000 transmitter module is ideal for short-range wireless data applications where robust operation,
small size and low power consumption are required. The DR4000 utilizes Murata’s TX6000 amplifier-
sequenced hybrid (ASH) architecture to achieve this unique blend of characteristics. The transmitter includes
provisions for on-off keyed (OOK) and ASK modulation. The transmitter employs SAW filtering to suppress
output harmonics, facilitating compliance with FCC 15.249 and similar regulations. The DR4000 includes the
TX6000 plus all configuration components in a ready-to-use PCB assembly, excellent for prototyping and
intermediate volume production runs.
RFM products are now
Murata products.
DR4000
916.50 MHz
Transmitter Module
Absolute Maximum Ratings
Rating
Power Supply and All Input/Output Pins
Non-Operating Case Temperature
Soldering Temperature (10 seconds)
Value
-0.3 to +4.0
-50 to +100
230
Units
V
°C
°C
Characteristic
Operating Frequency
Data Rate
OOK
ASK
Transmitter Performance (OOK @ 2.4 kbps)
Peak Input Current, 3 Vdc Supply
Peak Output Power
Turn On/Turn Off Time
Power Supply Voltage Range
Operating Ambient Temperature
Sym
fO
ITP
PO
tON/tOFF
VCC
TA
Notes
Minimum
916.3
Typical
0.75
2.7
-20
Maximum
916.7
19.2
115.2
Units
MHz
kbps
12
12/6
3.5
+65
mA
mW
µs
Vdc
°C
VCC
NC
NC
NC
TX IN
DR4000 Pin Out
RF
GND
RFIO
14 13
1 12 CTR0
2 11 CTR1
3 10 GND
4 9 VCC
5 8 NC
67
GND GND
©2010-2015 by Murata Electronics N.A., Inc.
DR4000 (R) 3/31/15
Page 1 of 2
DR4000 Outline Drawing
.70
.25 .20
.165
.10
.70
Dimensions in inches
www.murata.com


Murata Manufacturing Electronic Components Datasheet

DR4000 Datasheet

Transmitter Module

No Preview Available !

Pin Desciptions
Pin Name
1 VCC
5 TX IN
6, 7 GND
8 NC
9 VCC
10 GND
11 CTR1
12
CTR0
(T/S)
13 RFIO
14 RF GND
Description
The TX IN pin is connected to the transmitter TXMOD pin through a 4.7 K resistor on the circuit board. Additional series resis-
tance will often be required between the modulation source and the TX IN pin, depending on the desired output power and
peak modulation voltage (3.3 K typical for a peak modulation voltage of 3 volts). Saturated output power requires about 450 µA
of drive current. Peak output power PO for a 3 Vdc supply is approximately:
PO = 4.8*((VTXH - 0.9)/(RM + 4.7))2, where PO is in mW, peak modulation voltage VTXH is in volts and external modulation resis-
tor RM is in kilohms
This pin must be held low in the receive and sleep modes. Please refer to section 2.9 of the ASH Transceiver Designer's Guide
for additional information.
This is the positive supply voltage pin for the module. The operating voltage range is 2.7 to 3.5 Vdc. It is also possible to use
Pin 1 as the Vcc input. Please refer to the Pin 1 description above.
This is the supply voltage return pin.
CTR1 and CTR0 select the transmit modes. CTR1 high and CTR0 low place the unit in the ASK transmit mode. CTR1 low and
CTR0 high place the unit in the OOK transmit mode. CTR1 and CTR0 both low place the unit in the power down (sleep) mode.
CTR1 is a high-impedance input (CMOS compatible). An input voltage of 0 to 200 mV is interpreted as a logic low. An input
voltage of Vcc - 200 mV or greater is interpreted as a logic high. An input voltage greater than Vcc + 200 mV should not be
applied to this pin. This pin must be held at a logic level; it cannot be left unconnected.
T” =1 for transmission, “S” =0 for sleep mode
RFIO is the RF output pin. A matching circuit for a 50 ohm load (antenna) is implemented on the circuit board between this pin
and the transceiver SAW filter transducer.
This pin is the RF ground (return) to be used in conjunction with the RFIO pin. For example, when connecting the module to an
external antenna, the coaxial cable ground is connected this pin and the coaxial cable center conductor is connected to RFIO.
AApppplliiccataiotni oOnOKOCOircKuitC i r c u i t
T /S 3 V d c
12 11 10 9
13
DDRR4400000 0
14
1234
8
7
6
5
3 .3k
D a ta In
©2010-2015 by Murata Electronics N.A., Inc.
DR4000 (R) 3/31/15
Page 2 of 2
A Apppplliiccaatiot inoAnSKACSirKcuCit ir c u i t
T /S 3 V d c
12 11 10 9
13
DDRR4400000 0
14
1234
8
7
6
5
3 .3 k
D a ta In
www.murata.com


Part Number DR4000
Description Transmitter Module
Maker muRata
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