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RF2689

W-CDMA/GSM/DCS RECEIVE AGC AND DEMODULATOR

RF Micro Devices 

RF2689

Preliminary

Absolute Maximum Ratings

Parameter

Supply Voltage

Power Down Voltage (VPD)

Input RF Power

Ambient Operating Temperature

Storage Temperature

Rating

-0.5 to +5

-0.5 to VCC+0.7

+3

-40 to +85

-40 to +150

Unit

VDC

VDC

dBm

°C

°C

Caution! ESD sensitive device.

RF Micro Devices believes the furnished information is correct and accurate

at the time of this printing. However, RF Micro Devices reserves the right to

make changes to its products without notice. RF Micro Devices does not

assume responsibility for the use of the described product(s).

Parameter

Specification

Unit

Min.

Typ.

Max.

Condition

W-CDMA Mode

Temp=25°C, VCC=3V, ZLOAD=60kΩ diff.,

LO=1520MHz@-10dBm, ZSOURCE=500Ω

diff.

IF Frequency

190

MHz

W-CDMA IF Input Impedance

1200

Ω

Single-ended

2400

Ω

Balance. An external resistor across the dif-

ferential input is used to define the input

7

LO Frequency

LO Input Level

1520

-20

-10

impedance.

MHz

0

dBm

LO Input Impedance

50

Ω

Single-ended.

Maximum Voltage Gain

76

80

dB

Pin-to-Pin voltage gain.

Note: 10dB additional voltage gain in input

match 50Ω to 500Ω.

Minimum Voltage Gain

5

10

15

Gain Variation versus VCC and

-3

+1

+3

dB

Temperature

Gain Control Voltage

0.3

2.4

V

Defined with external 10kΩ resistor in series

with VGC1 pin. Analog gain control.

Input IP3

Blockers at 10MHz and 20MHz offset.

-52

-48

dBm

Maximum Gain. VGC=2.4V

-5

0

dBm

Minimum Gain. VGC=0.3V

Noise Figure

5

7

dB

Maximum Gain. VGC=2.4V

56

58

Minimum Gain VGC=0.3V

Inband Output 1dB Compression 1.5

2.0

VP-P

Measured differentially.

Compression

Out of band blocker causing 1dB of inband

gain compression. Blocker at 5MHz.

-48

dBm

Maximum Gain. VGC=2.4V

-17

dBm

Minimum Gain. VGC=0.3V

Butterworth third order, FC2.5M+10%

Baseband 3dB Bandwidth

2.25

2.5

2.75

MHz

Calibrated. FCLK=13MHz, 3dB rolloff from

1MHz offset

Sideband Suppression

27

dB

A measure of IQ gain match and IQ quadra-

ture accuracy. Measured for baseband fre-

quencies 100kHz to 2.5MHz.

DC Offset

+40

mV

Baseband External Load

20

60

kΩ

Resistive Load Impedance.

Differentially across op pins.

5

pF

Capacitive Load Impedance.

To ground.

Output DC Voltage

VCC - 1.3

VCC - 1.6

VCC - 1.9

V

IQ Amplitude Balance

+0.2

+0.5

dB

VGC=0.3V, PIN=-30dBm

IQ Phase Balance

+2

+5

degree VGC=0.3V, PIN=-30dBm

7-40

Rev A4 010815

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