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10

10 - 9

Step error vs. attenuation

lo return loss vs. Frequency

acPr for W-cdMa @ 2140 MHz

vs. output Power for various input levels,

acPr for W-cdMa @ 2140 MHz

vs. output Power & vGa attenuation for

rF return loss vs. attenuation

rF return loss vs. Frequency offset,

vGa attenuation 0 db

HMC795LP5E

v00.0409

SiGe Wideband direct Quadrature

Modulator w/ vGa, 50 - 2800 MHz

-0.15

-0.1

-0.05

0

0.05

0.1

0.15

0

4

8

12

16

20

24

28

32

ATTENUATION (dB)

50 MHz, 1 GHz, 2 GHz, 2.5 GHz

-40

-30

-20

-10

0

0

1

2

3

4

5

FREQUENCY (GHz)

SINGLE-ENDED LO

DIFFERENTIAL LO

WITH BD2326 BALUN

-75

-70

-65

-60

-55

-50

-15

-10

-5

0

CARRIER OUTPUT POWER (dBm)

ADJACENT CH.

ACPR

ALTERNATE CH.

ACPR

-30

-25

-20

-15

-10

-5

0

0

4

8

12

16

20

24

28

32

ATTENUATION STATE (dB)

1000MHz

2690MHz

1950 MHz

-30

-25

-20

-15

-10

-5

0

-150

-100

-50

0

50

100

150

OFFSET FREQUENCY (MHz)

1000MHz

1950MHz

2690MHz

-90

-80

-70

-60

-50

-40

-30

-180

-160

-140

-120

-100

-80

-60

-40

-30

-20

-10

0

10

CARRIER OUTPUT POWER (dBm)

ACPR

OUTPUT NOISE

110mV (rms)

65mV (rms)

0 dB

0 dB

0 dB

31.5dB

31.5dB

0 dB

28dB

37mV (rms)

[1] W-CdMA (Modulation set-up for ACPR Mode): the baseband i and q input signals were generated using “test Model 1 with 64 channels