TX5000

TX5000 RFM | Alldatasheet

Document overview

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Technical content

Power Supply and All Input/Output Pins -0.3 to +4.0 V Non-Operating Case Temperature -50 to +100 oC Soldering Temperature (10 seconds) 250 oC Characteristic Sym Notes Minimum Typical Maximum Units Operating Frequency f O 433.72 434.12 MHz Modulation Types OOK & ASK OOK Data Rate 10 kbps ASK Data Rate 115.2 kbps Transmitter Performance Peak RF Output Power, 250 µA TXMOD Current P O 0 dBm Peak Current, 250 µA TXMOD Current I TP 7.5 mA OOK Turn On/Turn Off Times t ON/tOFF 20/15 µs ASK Output Rise/Fall Times t TR/tTF 1.1/1.1 µs 2nd -4 th Harmonic Outputs -50 dBm 5th -1 0th Harmonic Outputs -55 dBm Non-harmonic Spurious Outputs -50 dBm Sleep Mode Current I S 0.7 µA Sleep to Transmit Switch Time t TOR 21 µs Transmit to Sleep Switch Time t RTO 15 µs Control Input Logic Low Level 200 mV Control Input Logic High Level 1 Vcc - 300 mV Power Supply Voltage Range V CC 2.2 3.7 Vdc Operating Ambient Temperature T A -40 +85 oC

Electrical Characteristics

/c183Designed for Short-Range Wireless Data Communications /c183Supports RF Data Transmission Rates Up to 115.2 kbps /c1833 V, Low Current Operation plus Sleep Mode /c183Stable, Easy to Use, Low External Parts Count TX5000

433.92 MHz

TransmitterThe TX5000 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 TX5000 includes provisions for both on-off keyed (OOK) and amplitude-shift keyed (ASK) modulation. The TX5000 employs SAW filtering to suppress output har- monics, facilitating compliance with ETSI I-ETS 300 220 and similar regulations.

Item Symbol OOK ASK ASK Units Notes Nominal NRZ Data Rate DRNOM 2.4 19.2 115.2 kbps see page 1 Minimum Signal Pulse SP MIN 416.67 52.08 8.68 µs single bit Maximum Signal Pulse SP MAX 1666.68 208.32 34.72 µs 4 bits of same value TXMOD Resistor R TXM 8.2 8.2 8.2 K ±5%, for 0 dBm output DC Bypass Capacitor C DCB 4.7 4.7 4.7 µF tantalum RF Bypass Capacitor 1 C RFB1 27 27 27 pF ±5% NPO RF Bypass Capacitor 2 C RFB2 100 100 100 pF ±5% NPO RF Bypass Bead L RFB Fair-Rite Fair-Rite Fair-Rite vendor 2506033017YO or equivalent Series Tuning Inductor L AT 56 56 56 nH 50 ohm antenna Shunt Tuning/ESD Inductor L ESD 220 220 220 nH 50 ohm antenna /G4D /G6F/G64/G75/G6C /G61/G74 /G69 /G6F/G6E/G20 /G49 /G6E/G70/G75/G74 /G54 /G4F /G50/G20 /G56/G49 /G45/G57 /G47/G4E /G44 /G33 /G43/G4E/G54 /G52/G4C /G30 /G43/G4E/G54 /G52/G4C /G31 /G50 /G57/G49 /G44 /G54 /G48 /G50 /G52/G41 /G54 /G45 /G54/G48 /G4C /G44 /G31 /G54/G48 /G4C /G44 /G32 /G52/G52/G45 /G46 /G47/G4E /G44 /G32 /G54/G58 /G4D/G4F /G44 /G52/G58 /G44/G41 /G54 /G41 /G4C/G50 /G46 /G41/G44 /G4A /G43/G4D /G50 /G49/G4E /G42/G42 /G4F/G55 /G54 /G50/G4B /G44/G45 /G54 /G41/G47 /G43 /G43/G41 /G50 /G56/G43 /G43 /G31 /G56/G43 /G43 /G32 /G52/G46 /G49 /G4F /G47/G4E /G44 /G31 /G2B/G20 /G33 /G56/G44 /G43 /G54/G72 /G61 /G6E /G73 /G6D /G69 /G74 /G74 /G65 /G72 /G20 /G4F /G4F /G4B /G20 /G43 /G6F/G6E/G66 /G69 /G67/G75/G72 /G61 /G74 /G69 /G6F /G6E /G31 /G32/G30 /G32/G33/G34/G35/G36/G37/G38/G39 /G31/G30 /G31/G31 /G31/G32 /G31/G33 /G31/G34 /G31/G35 /G31/G36 /G31/G37 /G31/G38 /G31/G39 /G2B/G20 /G33 /G56/G44 /G43 /G52 /G54/G58 /G4D /G43 /G52/G46 /G42 /G32 /G43 /G44/G43 /G42 /G4C /G41/G54 /G4C /G45/G53/G44 /G43 /G52/G46 /G42 /G31 /G4C /G52/G46 /G42 /G2B /G54/G2F /G53 /G4D /G6F/G64/G75/G6C /G61/G74 /G69 /G6F/G6E/G20 /G49 /G6E/G70/G75/G74 /G54 /G4F /G50/G20 /G56/G49 /G45/G57 /G47/G4E /G44 /G33 /G43/G4E/G54 /G52/G4C /G30 /G43/G4E/G54 /G52/G4C /G31 /G50 /G57/G49 /G44 /G54 /G48 /G50 /G52/G41 /G54 /G45 /G54/G48 /G4C /G44 /G31 /G54/G48 /G4C /G44 /G32 /G52/G52/G45 /G46 /G47/G4E /G44 /G32 /G54/G58 /G4D/G4F /G44 /G52/G58 /G44/G41 /G54 /G41 /G4C/G50 /G46 /G41/G44 /G4A /G43/G4D /G50 /G49/G4E /G42/G42 /G4F/G55 /G54 /G50/G4B /G44/G45 /G54 /G41/G47 /G43 /G43/G41 /G50 /G56/G43 /G43 /G31 /G56/G43 /G43 /G32 /G52/G46 /G49 /G4F /G47/G4E /G44 /G31 /G2B/G20 /G33 /G56/G44 /G43 /G54/G72 /G61 /G6E /G73 /G6D /G69 /G74 /G74 /G65 /G72 /G20 /G41 /G53 /G4B /G20 /G43 /G6F/G6E/G66 /G69 /G67/G75/G72 /G61 /G74 /G69 /G6F /G6E /G31 /G32/G30 /G32/G33/G34/G35/G36/G37/G38/G39 /G31/G30 /G31/G31 /G31/G32 /G31/G33 /G31/G34 /G31/G35 /G31/G36 /G31/G37 /G31/G38 /G31/G39 /G2B/G20 /G33 /G56/G44 /G43 /G52 /G54/G58 /G4D /G43 /G52/G46 /G42 /G32 /G43 /G44/G43 /G42 /G4C /G41/G54 /G4C /G45/G53/G44 /G43 /G52/G46 /G42 /G31 /G4C /G52/G46 /G42 /G2B /G54/G2F /G53 Transmitter Set-Up, 3.0 Vdc, -40 to +85 0C Notes: 1. Do not allow the voltage applied to a control input pin to exceed Vcc + 200 mV. CAUTION: Electrostatic Sensitive Device. Observe precautions when handling.

The transmitter RF output power is proportional to the input current to the TXMOD pin. A series resistor is used to adjust the peak trans- mitter output power. 0 dBm of output power requires about 250 µA of input current. Transmitter Mode Control The three transmitter operating modes – transmit ASK, transmit OOK, and power-down (sleep), are controlled by the Modulation & Bias Control function, and are selected with the CNTRL1 and CNTRL0 control pins. Setting CNTRL1 high and CNTRL0 low place the unit in the ASK transmit mode. Setting CNTRL1 low and CNTRL0 high place the unit in the OOK transmit mode. Setting CNTRL1 and CNTRL0 both low place the unit in the power-down mode. (Note that the resistor driving TXMOD must also be low in the power-down mode to minimize power-down current.) CNTRL1 and CNTRL0 are CMOS compatible inputs. These inputs must be held at a logic level; they cannot be left unconnected. Turn-On Timing The maximum time required for either the OOK or ASK transmitter mode to become operational is 5 ms after the supply voltage reaches 2.2 Vdc. The total turn-on time to stable transmitter opera- tion for a 10 ms power supply rise time is 15 ms. Sleep and Wake-Up Timing The maximum transition time from either transmit mode to the sleep mode (t TOS and tTAS) is 15 µs after CNTRL1 and CNTRL0 are both low (1 µs fall time). The maximum time required to switch from the sleep mode to either transmit mode (tSTO and tSTA) is 21 µs. Most of this time is due to the start-up of the transmitter oscillator. /G33 /G34 /G35 /G36 /G37 /G39 /G31/G31 /G31/G32 /G31/G33 /G31/G34 /G31/G35 /G31/G36 /G31/G37 /G31/G39 /G54/G72 /G61 /G6E /G73 /G6D /G69 /G74 /G74 /G65 /G72 /G20 /G50 /G69 /G6E/G20 /G4F /G75 /G74 /G52/G46 /G49 /G4F /G38 /G32 /G31/G30 /G32/G30 /G31 /G31/G38 /G4E/G43 /G4E/G43 /G4E/G43 /G4E/G43 /G4E/G43 /G4E/G43 /G4E/G43 /G4E/G43 /G54/G58 /G4D /G4F /G44 /G4E /G43 /G4E/G43 /G4E/G43 /G47 /G4E/G44/G31 /G56/G43 /G43 /G31 /G47 /G4E/G44/G32 /G56/G43 /G43 /G32 /G47 /G4E/G44/G33 /G43/G4E/G54 /G52 /G4C /G30 /G43/G4E/G54 /G52 /G4C /G31 /G53 /G4D /G2D /G32/G30/G4C /G20 /G50 /G61/G63/G6B/G61/G67 /G65/G20 /G44 /G72 /G61/G77 /G69 /G6E /G67 /G30/G2E /G30/G38/G22 /G28 /G32 /G2E /G30/G33/G29 /G30/G2E /G31/G32/G35/G22 /G28/G33 /G2E /G32 /G30 /G29 /G30/G2E /G30/G32/G22 /G28/G30 /G2E /G35 /G31 /G29 /G30/G2E /G30/G34/G22 /G28/G31 /G2E /G30 /G32 /G29 /G30/G2E /G31/G33/G22 /G28 /G33 /G2E /G33/G30/G29 /G30/G2E /G34/G33/G22 /G28 /G31/G30/G2E /G39/G29 /G30/G2E /G33/G38/G22 /G28 /G39 /G2E /G36/G35/G29 /G30/G2E /G30/G37/G35/G22 /G28/G31 /G2E /G39 /G30 /G29 /G30/G2E /G30/G30/G30 /G30/G2E /G30/G30/G30 /G2E/G31 /G34 /G30 /G2E/G32/G37 /G30 /G2E/G34 /G31 /G30 /G2E/G30 /G37 /G37 /G35 /G2E/G31 /G30 /G32/G35 /G2E/G31 /G31 /G37 /G35 /G2E/G31 /G35 /G37 /G35 /G2E/G31 /G39 /G37 /G35 /G2E/G32/G33 /G37 /G35 /G2E/G32/G37 /G37 /G35 /G2E/G33 /G31 /G37 /G35 /G2E/G33 /G35 /G37 /G35 /G2E/G33 /G38 /G32/G35 /G2E/G34 /G36 /G30 /G30 /G2E/G31 /G39 /G37 /G35 /G2E/G31 /G37 /G32/G35 /G2E/G32/G31 /G32/G35 /G2E/G32/G33 /G37 /G35 /G44 /G69 /G6D /G65 /G6E/G73 /G69 /G6F /G6E/G73 /G20 /G69 /G6E/G20 /G69 /G6E /G63 /G68/G65/G73 /G53 /G4D /G2D /G32/G30 /G4C /G20/G50 /G43 /G42 /G20/G50 /G61 /G64 /G20/G4C /G61 /G79 /G6F /G75 /G74

1 GND1 GND1 is the RF ground pin. GND2 and GND3 should be connected to GND1 by short, low-inductance traces.

2 VCC1

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. 3 NC No connection. Printed circuit board pad may be grounded or floating. 4 NC No connection. Printed circuit board pad may be grounded or floating. 5 NC No connection. Printed circuit board pad may be grounded or floating. 6 NC No connection. Printed circuit board pad may be grounded or floating. 7 NC No connection. Printed circuit board pad may be grounded or floating.

8 TXMOD

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. 0 dBm of output power requires 250 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 P O for a 3 Vdc supply voltage is approxi- mately: PO = 16*(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 De- signer’s Guidefor additional information on modulation techniques. 9 NC No connection. Printed circuit board pad may be grounded or floating. 10 GND2 GND2 is an IC ground pin. It should be connected to GND1 by a short, low inductance trace. 11 NC No connection. Printed circuit board pad may be grounded or floating. 12 NC No connection. Printed circuit board pad may be grounded or floating. 13 NC No connection. Printed circuit board pad may be grounded or floating. 14 NC No connection. Printed circuit board pad may be grounded or floating. 15 NC No connection. Printed circuit board pad may be grounded or floating.

16 VCC2

VCC2 is the positive supply voltage pin for the transmitter oscillator. Pin 16 must be bypassed with an RF capaci- tor, and must also be bypassed witha1t o1 0µ F tantalum or electrolytic capacitor. Power supply voltage ripple should be limited to 10 mV peak-to-peak. See the ASH Transceiver Designer’s Guidefor additional information.

17 CNTRL1

CNTRL1 and CNTRL0 select the transmit modes. CNTRL1 high and CNTRL0 low place the unit in the ASK trans- mit 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 inter- preted 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. 18 CNTRL0 CNTRL0 is used with CNTRL1 to control the operating modes of the transmitter. See the description of CNTRL1 for more information. 19 GND3 GND3 is an IC ground pin. It should be connected to GND1 by a short, low inductance trace.

20 RFIO

RFIO is the transmitter RF output pin. This pin is connected directly to the SAW filter transducer. Antennas pre- senting an impedance in the range of 35 to 72 ohms resistive can be satisfactorily matched to this pin with a se- ries 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 protection. Pin Descriptions

File: tx5000k.vp, 2003.07.20 rev Note: Specifications subject to change without notice. /G30/G2E /G32/G30 /G30/G2E /G34/G30 /G30/G2E /G36/G30 /G30/G2E /G38/G30 /G31/G2E /G30/G30 /G31/G2E /G32/G30 /G31/G2E /G34/G30 /G31/G2E /G36/G30 /G33/G20 /G56 /G52 /G46 /G20 /G4F /G75/G74 /G70/G75/G74 /G20 /G50 /G6F/G77 /G65 /G72 /G20 /G76 /G73 /G20 /G49 /G54/G58 /G4D /G49 /G54/G58 /G4D /G20/G69/G6E /G20/GB5 /G41 /G4F /G75 /G74 /G70 /G75 /G74 /G20/G50 /G6F /G77 /G65 /G72 /G20/G69/G6E /G20/G6D /G57 /G32/G35 /G35/G30 /G37/G35 /G31/G30/G30 /G31/G32/G35 /G31/G35/G30 /G31/G37/G35 /G32/G30/G30 /G32/G37/G35 /G32/G35/G30 /G32/G32/G35 /G49 /G54/G58 /G4D /G20/G69/G6E /G20/GB5 /G41 /G56 /G54/G58 /G4D /G20/G76 /G73 /G20 /G49 /G54/G58 /G4D /G30/G2E /G38/G35 /G30/G2E /G39/G30 /G30/G2E /G39/G35 /G31/G2E /G30/G30 /G31/G2E /G30/G35 /G31/G2E /G31/G30 /G31/G2E /G31/G35 /G31/G2E /G32/G30 /G56 /G54/G58 /G4D /G20/G69/G6E /G20/G56 /G32/G35 /G35/G30 /G37/G35 /G31/G30/G30 /G31/G32/G35 /G31/G35/G30 /G31/G37/G35 /G32/G30/G30 /G32/G37/G35 /G32/G35/G30 /G32/G32/G35