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MAX2510

Low-Voltage IF Transceiver with Limiter/RSSI and Quadrature Modulator

Maxim Integrated 

Low-Voltage IF Transceiver with

Limiter/RSSI and Quadrature Modulator

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2510 test fixture; VCC = +3.0V; RXEN = TXEN = low; 0.01µF across CZ and CZ; MIXOUT tied to VREF through 165Ω resistor;

TXOUT and TXOUT loaded with 100Ω differential; LO terminated with 50Ω, LO AC grounded; GC open; LIMOUT, LIMOUT are AC

coupled to 250Ω load; 330pF at RSSI pin; 0.1µF connected from VREF pin to GND; PRXIN, RXIN = -30dBm differentially driven (input

matched); fRXIN, RXIN = 240MHz; bias voltage at I, I, Q, Q = 1.4V; VI,Q = 500mVp-p; fI,Q = 200kHz; fLO, LO = 230MHz; PLO = -13dBm;

TA = +25°C; unless otherwise noted.)

PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

LIMITING AMPLIFIER AND RSSI (RXEN = high, fLIMIN = 10MHz, PLIMIN = -30dBm from 50Ω source, unless otherwise noted)

Limiter Output Voltage Swing

LIMOUT, LIMOUT

±270

±300

±350

mV

Phase Variation

-75dBm to 5dBm

Minimum Linear RSSI Range

-75dBm to 5dBm

Minimum Monotonic RSSI Range -85dBm to 5dBm

RSSI Slope

-75dBm to 5dBm from 50Ω

RSSI Maximum Zero-Scale Intercept (Note 6)

RSSI Relative Error (Notes 6, 7)

TA = +25°C

TA = -40°C to +85°C (Note 3)

Minimum-Scale RSSI Voltage

At LIMIN input of -75dBm

±4.5

80

90

20

-86

±0.5

0.25

±2.0

±3.0

degrees

dB

dB

mV/dB

dBm

dB

V

Maximum-Scale RSSI Voltage

At LIMIN input of +5dBm

1.8

V

TRANSMITTER (TXEN = high)

Frequency Range

(Note 8)

100

I, I, Q, Q inputs are 250mVp-p centered around

1.3

I, I, Q, Q Allowable Common-Mode this voltage, GC = 2.0V (Note 9)

Voltage Range

I, Q are 500mVp-p while I, Q are held at this DC

voltage (Note 9)

1.4

GC = 0.5V

Output Power

I, I, Q, Q 1dB Bandwidth

GC = open

GC = 2.0V (Note 9)

TA = +25°C

-2.5

TA = -40°C to +85°C

-3

(Note 3)

70

600

MHz

VCC -

1.2

V

VCC -

1.3

-41

-16

dBm

1

80

MHz

Unwanted Sideband Suppression

90° phase difference between I and Q inputs;

GC = 2V

30

40

dBc

LO Rejection

90° phase difference between I and Q inputs;

measured to fundamental tone; GC = 2V

30

44

dBc

Output IM3 Level

Output IM5 Level

GC = 0.5V (Note 11)

GC = 2V (Note 11)

GC = 2V (Note 11)

-49

dBc

-33

-51

dBc

Note 1:

Note 2:

Note 3:

This pin is internally terminated to approximately 1.35V through the specified resistance.

Downconverter gain is typically greater than 20dB. Operation outside this frequency range is possible but has not been

characterized.

Guaranteed by design and characterization.

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