MAX2511 查看數據表（PDF） - Maxim Integrated

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MAX2511

Low-Voltage IF Transceiver with Limiter and RSSI

Maxim Integrated 

Low-Voltage IF Transceiver

with Limiter and RSSI

____________________________Typical Operating Characteristics (continued)

(MAX2511 test fixture, VCC = +3.0V, 0.01µF across CZ and CZ, MIXOUT tied to VREF through 165Ω resistor, TXIN, TXIN tied to

VREF through 50Ω resistor, TXOUT and TXOUT loaded with 100Ω differential, GC open, LIMOUT, LIMOUT loaded with 2kΩ differ-

ential, TANK and TANK driven with -2.5dBm from a 100Ω source; OSCOUT AC-terminated with 50Ω, 100pF at RSSI pin, 0.1µF at

VREF pin, Rx inputs and Tx outputs differentially coupled, PRXIN, RXIN = -28dBm (200Ω system), fRXIN, RXIN = 425MHz, fLO = 435.7MHz,

fTXIN, TXIN = 10.7MHz, TA = +25°C, unless otherwise noted.)

RSSI OUTPUT VOLTAGE vs. LIMIN

INPUT POWER AND TEMPERATURE

1.1

1

.9

.8

.7

.6

.5

.4

TA = +85°C

.3 TA = +25°C

.2

.1

TA = -40°C

0

-120 -100 -80 -60 -40 -20 0 20

PLIMIN (dBm, 50Ω)

RSSI RELATIVE ERROR

vs. LIMIN INPUT AND TEMPERATURE

5

4

TA = +85°C

3

2

1

0

-1

-2

TA = +25°C

-3

TA = -40°C

-4

-5

-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20

PLIMIN (dBm, 50Ω)

TRANSMITTER IMAGE REJECTION vs.

TEMPERATURE AND SUPPLY VOLTAGE

40

38

VCC = 5.5V

36

VCC = 3.3V

34

32

VCC = 2.7V

30

28

26

-40 -20 0 20 40 60

85

TEMPERATURE (°C)

MIXER INPUT-REFERRED RSSI VOLTAGE

vs. RXIN INPUT POWER

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

-120 -100 -80 -60 -40 -20 0 10

PRXIN (dBm, 50Ω)

8 _______________________________________________________________________________________

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