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PDF TX6004 Data sheet ( Hoja de datos )
| Número de pieza | TX6004 | |
| Descripción | 914.00 MHz Hybrid Transmitter | |
| Fabricantes | RF Monolithics | |
| Logotipo |  |
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®
• Designed for Short-Range Wireless Data Communications
• Supports RF Data Transmission Rates Up to 115.2 kbps
• 3 V, Low Current Operation plus Sleep Mode
• Stable, Easy to Use, Low External Parts Count
• Complies with Directive 2002/95/EC (RoHS)
The TX6004 hybrid transmitter is ideal for short-range wireless data applications where robust operation,
small size, low power consumption and low cost are required. All critical RF functions are contained in the
hybrid, simplifying and speeding design- in. The TX6004 includes provisions for both on-off keyed (OOK) and
amplitude-shift keyed (ASK) modulation. The TX6004 employs SAW filtering to suppress output harmonics,
facilitating compliance with FCC 15.249 and similar regulations.
TX6004
914.00 MHz
Hybrid
Transmitter
Rating
Power Supply and All Input/Output Pins
Non-Operating Case Temperature
Soldering Temperature (10 seconds / 5 cycles max.)
Value
-0.3 to +4.0
-50 to +100
260
Units
V
°C
°C
SM-20H Case
Electrical Characteristics
Characteristic
Operating Frequency
Modulation Types
OOK Data Rate
ASK Data Rate
Transmitter Performance
Peak RF Output Power, 250 µA TXMOD Current
Peak Current, 250 µA TXMOD Current
OOK Turn On/Turn Off Times
ASK Output Rise/Fall Times
2nd - 4th Harmonic Outputs
5th - 10th Harmonic Outputs
Non-harmonic Spurious Outputs
Sleep Mode Current
Sleep to Transmit Switch Time
Transmit to Sleep Switch Time
Control Input Logic Low Level
Control Input Logic High Level
Power Supply Voltage Range
Operating Ambient Temperature
Sym
fo
Notes
Minimum
913.80
Typical
OOK & ASK
Maximum
914.20
Units
MHz
20
115.2
kbps
kbps
PO
ITP
tON/tOFF
tTR/tTF
1.5
12
IS
tTOR
tRTO
VCC
TA
1 Vcc - 300
2.2
-40
0.7
15/10
1.1/1.1
-50
-55
-50
16
10
200
3.7
+85
dBm
mA
µs
µs
dBm
dBm
dBm
µA
µs
µs
mV
mV
Vdc
°C
RF Monolithics, Inc. Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [email protected]
http://www.rfm.com
TX6004-070805
Page 1 of 6
1 page  
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Pin Descriptions
Pin Name
1 GND1
2 VCC1
3 NC
4 NC
5 NC
6 NC
7 NC
8 TXMOD
9 NC
10 GND2
11 NC
12 NC
13 NC
14 NC
15 NC
16 VCC2
17 CNTRL1
18 CNTRL0
19 GND3
20 RFIO
Description
GND1 is the RF ground pin. GND2 and GND3 should be connected to GND1 by short, low-inductance traces.
VCC1 is the positive supply voltage pin for the transmitter output amplifier and the transmitter base-band circuitry. VCC1
is usually connected to the positive supply through a ferrite RF decoupling bead which is bypassed by an RF capacitor on
the supply side. See the description of VCC2 (Pin 16) for additional information.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
The transmitter RF output voltage is proportional to the input current to this pin. A series resistor is used to adjust the peak
transmitter output voltage. 1.5 dBm of output power requires 450 µA of input current. In the ASK mode, minimum output
power occurs when the modulation driver sinks about 10 µA of current from this pin. In the OOK mode, input signals less
than 220 mV completely turn the transmitter oscillator off. Internally, this pin appears to be a diode in series with a small
resistor. Peak transmitter output power PO for a 3 Vdc supply voltage is approximately:
PO = 7*(ITXM)2, where PO is in mW, and the peak modulation current ITXM is in mA
A ±5% resistor value is recommended. In the OOK mode, this pin is usually driven with a logic-level data input (unshaped
data pulses). OOK modulation is practical for data pulses of 200 µs or longer. In the ASK mode, this pin accepts analog
modulation (shaped or unshaped data pulses). ASK modulation is practical for data pulses 8.7 µs or longer. This pin must
be low in the power-down (sleep) mode. Please refer to the ASH Transceiver Designer’s Guide for additional information
on modulation techniques.
No connection. Printed circuit board pad may be grounded or floating.
GND2 is an IC ground pin. It should be connected to GND1 by a short, low inductance trace.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
No connection. Printed circuit board pad may be grounded or floating.
VCC2 is the positive supply voltage pin for the transmitter oscillator. Pin 16 must be bypassed with an RF capacitor, and
must also be bypassed with a 1 to 10 µF tantalum or electrolytic capacitor. Power supply voltage ripple should be limited to
10 mV peak-to-peak. See the ASH Transceiver Designer’s Guide for additional information.
CNTRL1 and CNTRL0 select the transmit modes. CNTRL1 high and CNTRL0 low place the unit in the ASK transmit mode.
CNTRL1 low and CNTRL0 high place the unit in the OOK transmit mode. CNTRL1 and CNTRL0 both low place the unit in
the power-down (sleep) mode. CNTRL1 is a high-impedance input (CMOS compatible). An input voltage of 0 to 300 mV is
interpreted as a logic low. An input voltage of Vcc - 300 mV or greater is interpreted as a logic high. An input voltage
greater than Vcc + 200 mV should not be applied to this pin. A logic high requires a maximum source current of 40 µA. A
logic low requires a maximum sink current of 25 µA (1 µA in sleep mode). This pin must be held at a logic level; it cannot
be left unconnected.
CNTRL0 is used with CNTRL1 to control the operating modes of the transmitter. See the description of CNTRL1 for more
information.
GND3 is an IC ground pin. It should be connected to GND1 by a short, low inductance trace.
RFIO is the transmitter RF output pin. This pin is connected directly to the SAW filter transducer. Antennas presenting an
impedance in the range of 35 to 72 ohms resistive can be satisfactorily matched to this pin with a series matching coil and
a shunt matching/ESD protection coil. Other antenna impedances can be matched using two or three components. For
some impedances, two inductors and a capacitor will be required. A DC path from RFIO to ground is required for ESD pro-
tection.
RF Monolithics, Inc. Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [email protected]
http://www.rfm.com
TX6004-070805
Page 5 of 6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet TX6004.PDF ] | |
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