MC33493ADTBER2 Datasheet MC33493ADTBER2, MC33493ADTBE | P7-P9

Power Management

PLL Tuned UHF Transmitter for Data Transfer Applications, Rev. 2

Freescale Semiconductor 7

Figure 4. Signals Waveform and Timing Definition

7 Power Management

When the battery voltage falls below the shutdown voltage threshold (V

SDWN

) the entire circuit switches off. After this

shutdown, the circuit is latched until a low level is applied on pin ENABLE (see State 4 of the state machine).

8 Data Clock

At start-up, data clock timing is valid after the data clock settling time. Because the clock is switched off asynchronously, the

last period duration cannot be guaranteed.

9 Electrical Characteristics

Unless otherwise specified, voltage range V

=[V

shutdown

;3.6 V], temperature range TA=[–20 °C;+ 85 °C], R

ext

=12 kΩ±5%,

RF output frequency f

carrier

= 433.92 MHz, reference frequency f

reference

= 13.560 MHz, output load RL = 50 Ω±1%

(Figure 9). Values refer to the circuit shown in the recommended application schematics: Figure 12 shows OOK modulation

and Figure 14 shows FSK modulation. Typical values reflect average measurement at VCC =3 V, TA = 25 °C.

ENABLE

DATACLK

DATA

State 1 State 2 State 3

DATACLK_settling >

PLL_lock_in

MODE=0 (OOK)

MODE=1 (FSK)

State 1

carrier

high

low

high

low

c : PLL locked

high

RFOUT

PLL Tuned UHF Transmitter for Data Transfer Applications, Rev. 2

Electrical Characteristics

Freescale Semiconductor8

Table 5. Electrical Characteristics

Parameter Test Conditions, Comments

Limits

Unit

Min. Typ. Max.

General Parameters

1.1

Supply current in

standby mode

≤ 25 °C — 0.1 5 nA

1.2

=60°C — 7 30 nA

1.3

= 85 °C — 40 150 nA

1.7

Supply current in

transmission mode

315 and 434 bands,

OOK and FSK modulation,

continuous wave, T

=25°C

— 11.6 13.5 mA

1.5

315 and 434 bands,

DATA=0, –20 °C ≤ T

≤ 85 °C

—4.45.5 mA

1.6

868 MHz band,

DATA=0, –20 °C ≤ T

≤ 85 °C

—4.65.7 mA

1.8

315 and 434 bands,

OOK and FSK modulation,

continuous wave, –20 °C ≤ T

≤85 °C

— 11.6 14.4 mA

1.9

868 MHz band,

OOK and FSK modulation,

continuous wave, –20 °C ≤T

≤ 85 °C

— 11.8 14.6 mA

1.10

Supply voltage — 3 3.6 V

1.12

Shutdown voltage threshold

= –20 °C — 1.99 2.06 V

1.13

= 25 °C — 1.86 1.95 V

1.14

= 60 °C — 1.76 1.84 V

1.15

= 85 °C — 1.68 1.78 V

RF Parameters

2.1

ext

value 12 — 21 kΩ

2.2

Output power

315 and 434 MHz bands,

with 50 Ω matching network

—5—dBm

2.3

868 MHz band,

with 50 Ω matching network

—1—dBm

2.4

315 and 434 MHz bands,

–20 °C ≤ T

≤ 85 °C

–2.50 2.5dBm

2.8

868 MHz band,

–20 °C ≤T

≤ 85 °C

–6 –3 0 dBm

2.12

Current and output power

variation vs. R

ext

value

315 and 434 MHz bands,

with 50 Ω matching network

— –0.35

–0.25

—dB/kΩ

mA/kΩ

2.13

Harmonic 2 level

315 and 434 MHz bands,

with 50 Ω matching network

— –34 — dBc

2.14

868 MHz band,

with 50 Ω matching network

— –49 — dBc

2.15

315 and 434 MHz bands — –23 –17 dBc

2.16

868 MHz band — –38 –27 dBc

Electrical Characteristics

PLL Tuned UHF Transmitter for Data Transfer Applications, Rev. 2

Freescale Semiconductor 9

2.17

Harmonic 3 level

315 and 434 MHz bands,

with 50 Ω matching network

— –32 — dBc

2.18

868 MHz band,

with 50 Ω matching network

— –57 — dBc

2.19

315 and 434 MHz bands — –21 –15 dBc

2.20

868 MHz band — –48 –39 dBc

2.21

Spurious level

@ f

carrier

± f

DATACLK

315 and 434 MHz bands — –36 –24 dBc

2.22

868 MHz band — –29 –17 dBc

2.23

Spurious level

@ f

carrier

± f

reference

315 MHz band — –37 –30 dBc

2.24

434 MHz band — –44 –34 dBc

2.25

868 MHz band — –37 –27 dBc

2.41

Spurious level

@ f

carrier

315 MHz band — –62 –53 dBc

2.26

434 MHz band — –80 –60 dBc

2.27

868 MHz band — –45 –39 dBc

2.30

Phase noise 315 and 434 MHz bands,

±175 kHz from f

carrier

— –75 –68 dBc/Hz

2.31

868 MHz band,

±175 kHz from f

carrier

— –73 –66 dBc/Hz

2.32

PLL lock-in time,

PLL_lock_in

carrier

within 30 kHz from the final value,

crystal series resistor = 150 Ω

— 400 1600 µs

2.33

XTAL1 input capacitance — 1 — pF

2.34

Crystal resistance OOK modulation — 20 200 Ω

2.44

FSK modulation 20 50

2.35

OOK modulation depth 75 90 — dBc

2.36

FSK modulation

carrier frequency

total deviation

315 and 434 MHz bands, see note — — 100 kHz

2.37

868 MHz band, see note — — 200 kHz

2.38

CFSK output resistance MODE = 0, DATA = x

MODE=1, DATA=0

50 70 — kΩ

2.39

MODE=1, DATA=1 — 90 300 Ω

2.43

CFSK output capacitance — 1 — pF

2.40

Data rate Manchester coding — — 10 kbit/s

2.41

Data to RF delay difference between

falling and rising edges,

delay_difference

MODE = 0, see note 3.5 5.25 7.5 µs

2.42

MODE = 1, see note –200 — 200 ns

Table 5. Electrical Characteristics (continued)

Parameter Test Conditions, Comments

Limits

Unit

Min. Typ. Max.

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P22

MC33493ADTBER2

Mfr. #:

Buy MC33493ADTBER2

Manufacturer:

NXP / Freescale

Description:

RF Transmitter UHF TRANSMITTER

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

MC33493ADTBER2

MC33493ADTBER2

Products related to this Datasheet