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AD6459

GSM 3 V Receiver IF Subsystem

Analog Devices 

AD6459–SPECIFICATIONS (@ TA = +25؇C, VP = 3.0 V, GREF = 1.2 V, unless otherwise noted)

Model

Parameter

Conditions

AD6459ARS

Min Typ

Max Units

DYNAMIC PERFORMANCE

MIXER

Maximum RF and LO Frequency

AGC Conversion Gain Variation

Input 1 dB Compression Point

Input Third-Order Intercept

SSB Noise Figure1

Mixer Output Bandwidth at MXOP

0.2 V < VGAIN < 2.25 V

@ VGAIN = 0.2 V

@ VGAIN = 0.2 V

@ ZS = 50 Ω, FRF = 240 MHz, FLO = 229.3 MHz at –16 dBm

@ –3 dB

500

–3 to +16

–11

0

10

80

MHz

dB

dBm

dBm

dB

MHz

IF AMPLIFIERS

AGC Gain Variation

Input Referred Noise

Input Resistance

Bandwidth

0.2 V < VGAIN <2.25 V

AC Short Circuit Input

@ VGAIN = 0.2 V

@ –3 dB

–13 to +46

3

5

50

dB

nV/√Hz

kΩ

MHz

I AND Q DEMODULATORS

Demodulation Gain

Output Voltage Range

Output Voltage Common-Mode Level

Output Offset Voltage

Error in Quadrature

Amplitude Match

I/Q Output Bandwidth

Output Resistance

Differential, IRXP, IRXN, QRXP, QRXN

(Not Power Supply Dependent)

Differential, VGAIN = GREF

Differential from I to Q, IF = 13 MHz

I to Q

CLOAD = 10 pF

Each Pin

17

0.3

1.5

–150

1.5

0.25

2

4.7

dB

VP – 0.2 V

V

150 mV

3.5 Degree

dB

MHz

kΩ

GAIN CONTROL

Total Gain Control Range

Control Voltage Range at GAIN

Gain Scaling

Gain Law Conformance

Bias Current at GREF

Input Resistance at GAIN

Mixer + IF + Demod, 0.2 V < VGAIN <2.25 V

76

0.2

23 27

± 0.5

0.5

20

dB

2.4 V

32

mV/dB

dB

µA

kΩ

PLL

Frequency Range

Phase Noise

Acquisition Time

Input Drive Level (FREF)

IF = 19.5 MHz, Using Suggested Filter

5

0.5

80

100

50

VPOS

MHz

Degree rms

µs

mV

POWER-DOWN INTERFACE

Logical Threshold

Input Current for Logical High

Turn-On Response Time

Turn-Off Response time

Standby Current

Power Up on Logical High

To Fully Meet Specifications (PLL Lock)

To 200 µA Supply Current

1.5

V

75

µA

80

µs

1

µs

2

µA

POWER SUPPLY

Supply Range

Supply Current

OPERATING TEMPERATURE

TMIN to TMAX

@ VGAIN = 1.2 V

Operation to 3.3 V Minimum Supply Voltage

Operation to 2.7 V Minimum Supply Voltage

2.7

8

–40

–25

5.5 V

mA

+85 °C

+85 °C

NOTES

1Including IF noise and using suggested filter, at VGAIN = 0.2 V.

Specifications subject to change without notice.

–2–

REV. 0

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