Ac electrical characteristics—max2651 (continued) – Rainbow Electronics MAX2653 User Manual

Page 4

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MAX2651/MAX2652/MAX2653

GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers

4

_______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS—MAX2651 (continued)

(MAX2651 EV kit, f

IN

= 945MHz (GSM band), f

IN

= 1850MHz (DCS band), P

IN

= -30dBm, input and output matching networks are

optimized for the frequency band of interest, all input/output ports terminated in 50

Ω, V

CC

= +3V, T

A

= +25°C, unless otherwise noted.)

(Note 2)

GSM band, high-gain mode
(BAND = GND, GAIN = V

CC

)

DCS band, low-gain mode
(BAND = V

CC

, GAIN = GND)

DCS band, high-gain mode
(BAND = GAIN = V

CC

)

GSM band, low-gain mode
(BAND = GAIN = GND)

GSM band, high-gain mode
(BAND = GND, GAIN = V

CC

)

DCS band, low-gain mode
(BAND = V

CC

, GAIN = GND)

DCS band, high-gain mode
(BAND = GAIN = V

CC

)

Reverse Isolation

-19

-15

-12

-10

dB

-14

-10

S

22

2

Output Return Loss

-20

-15

-11

-8.5

-14

-12

dB

-11

-8.5

S

11

2

Input Return Loss

GSM band, low-gain mode
(BAND = GAIN = GND)

GSM band, high-gain mode
(BAND = GND, GAIN = V

CC

)

DCS band, low-gain mode
(BAND = V

CC

, GAIN = GND)

DCS band, high-gain mode
(BAND = GAIN = V

CC

)

GSM band, low-gain mode
(BAND = GAIN = GND)

-22

-20

-39

-35

-20

-18

dB

-32

-29

S

12

2

-20

-15

GSM band, low-gain mode
(BAND = GND, GAIN = GND)

GSM band, high-gain mode
(BAND = GND, GAIN = V

CC

)

(Note 5)

DCS band, low-gain mode
(BAND = V

CC

, GAIN = GND)

-10.5

-8.5

-20

-18

-9.5

-8

dBm

IP

-1dB

Input 1dB Compression Point

dBm

-11.5 -10

IIP3

Input Third-Order Intercept Point

DCS band, high-gain mode
(BAND = GAIN = V

CC

)

DCS band, high-gain mode
(BAND = GAIN = V

CC

)

-1.5

0.5

DCS band, low-gain mode
(BAND = V

CC

, GAIN = GND)

(Note 6)

-10.5

-8.5

-2.5

0.5

GSM band, high-gain mode
(BAND = GND, GAIN = V

CC

)

GSM band, low-gain mode
(BAND = GND, GAIN = GND)

CONDITIONS

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

-20

-18

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