AD608AR datasheet(3/16 Pages) AD

3 / 16 page

AD608

Rev. C | Page 3 of 16

SPECIFICATIONS

TA = 25°C, supply = 3 V, dBm is referred to 50 Ω, unless otherwise noted.

Table 1.

Parameter

Conditions1

Min

Typ

Max

Unit

MIXER PERFORMANCE

RF and LO Frequency Range

500

MHz

LO Power

Input terminated in 50 Ω

−16

dBm

Conversion Gain

Driving doubly terminated 330 Ω IF filter, ZIF = 165 Ω

Noise Figure

Matched input, fRF = 100 MHz

Matched input, fRF = 240 MHz

1 dB Compression Point

Input terminated in 50 Ω

−15

dBm

Third-Order Intercept

fRF = 240 MHz and 240.02 MHz, fLO = 229.3 MHz

−5

dBm

Input Resistance

fRF = 100 MHz (see Table 5)

1.9

kΩ

Input Capacitance

fRF = 100 MHz (see Table 5)

LIMITER PERFORMANCE

Gain

Full temperature and supply range

110

Limiting Threshold

3° rms phase jitter at 10.7 MHz

−75

dBm

280 kHz IF bandwidth

Input Resistance

kΩ

Input Capacitance

Phase Variation

−75 dBm to +5 dBm IF input signal at 10.7 MHz

±3

Degrees

DC Level

Center of output swing (VPOS – 1 V)

Output Level

Limiter output driving 5 kΩ load

400

mV p-p

Rise and Fall Times

Driving a 5 pF load

Output Impedance

200

RSSI PERFORMANCE

At 10.7 MHz

Nominal Slope

At VPOS = 3 V; proportional to VPOS

17.27

23.27

mV/dB

Nominal Intercept

−85

dBm

Minimum RSSI Voltage

−75 dBm input signal

0.2

Maximum RSSI Voltage

+5 dBm input signal

1.8

RSSI Voltage Intercept

0 dBm input signal

1.57

1.82

Logarithmic Linearity Error

−75 dBm to +5 dBm input signal at IFHI

±1

RSSI Response Time

90% RF to 50% RSSI

200

Output Impedance

At midscale

250

POWER-DOWN INTERFACE

Logic Threshold

System active on logic high

1.5

Input Current

For logic high

Power-Up Response Time

Active limiter output

200

Power-Down Response Time

To 200 μA supply current

400

Power-Down Current

100

μA

POWER SUPPLY

Operating Range

−25°C to +85°C

2.7

5.5

−40°C to +85°C

3.0

5.5

Powered Up Current

VPOS = 3 V

7.3

OPERATING TEMPERATURE

TMIN to TMAX

VPOS = 2.7 V to 5.5 V

−25

+85

°C

VPOS = 3.0 V to 5.5 V

−40

+85

°C

1 VPOS is used to refer collectively to the VPS1 and VPS2 pins.

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