1700MHz to 2200MHz High-Linearity,

SPI-Controlled DVGA with Integrated Loopback Mixer

4

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AC ELECTRICAL CHARACTERISTICS (continued)

40MHz

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Switching Speed

From chip select transitioning high to the

output settling to within 1dB of steady state

output

0.3

µs

LOOPBACK MIXER

LO Frequency

(Note 2)

40

100

MHz

LO Input Power

-6

0

dBm

Output Power

(Note 7)

-15.4

-12.6

-9.6

dBm

1800MHz to 2000MHz

±2.2

Gain Accuracy

= -40°C to +85°C

2000MHz to 2200MHz

±2.2

dB

Output 3rd-Order Intercept Point

OIP3

6.2

dBm

Output Noise Floor

-137

dBc/Hz

LB_EN enable time

0.12

ON/OFF Switching Time

LB_EN disable time

0.12

µs

LBOUT to ATTEN_OUTB Isolation

Mixer enabled, attenuators A and B both set

55

dB

ATTEN_OUTB to LBOUT Isolation

50

dB

Mixer enabled, 50

Ω load

20

Output Return Loss

Mixer disabled, 50

Ω load

13

dB

LO Port Return Loss

50

Ω source

28

dB

SERIAL PERIPHERAL INTERFACE (SPI)

Maximum Clock Speed

38

MHz

Data to Clock Setup Time

1ns

Data to Clock Hold Time

9ns

Clock to CS Setup Time

4ns

CS Positive Pulse Width

18

ns

CS Negative Pulse Width

24

ns

Clock Pulse Width

13

ns

Note 1: All limits include external component losses. Output measurements taken at RFOUT or LBOUT ports of the Typical

Application Circuit.

Note 2: Operating outside this range is possible, but with degraded performance of some parameters.

Note 3: Compression point characterized. It is advisable not to continuously operate the VGA RF input above +15dBm.

Note 4: Input RF source contribution to spurious emissions (Agilent ESG 4435B, PSA E4443A): 200kHz = -39.2dBc,

400kHz = -73.5dBc, 600kHz = -83.2dBc, 1.2MHz = -85.7dBc

Note 5: See the Applications Information section regarding effective attenuation range.

Note 6: No SPI clock input applied.

Note 7: Guaranteed by design and characterization.