AD8348 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

AD8348

50 MHz to 1000 MHz Quadrature Demodulator / Compact, 28-lead TSSOP package

Analog Devices 

AD8348

SPECIFICATIONS

VS = 5 V, TA = 25oC, FLO = 380 MHz, FIF = 381 MHz, PLO = −10 dBm, RS (LO) = 50 Ω, RS (IFIP and MXIP/MXIN) = 200 Ω, unless

otherwise noted.

Table 1.

Parameter

OPERATING CONDITIONS

LO Frequency Range

IF Frequency Range

Baseband Bandwidth

LO Input Level

VSUPPLY (VS)

Temperature Range

IF FRONT END WITH VGA

Input Impedance

Gain Control Range

Maximum Conversion Voltage Gain

Minimum Conversion Voltage Gain

3 dB Bandwidth

Gain Control Linearity

IF Gain Flatness

Input 1 dB Compression Point (P1dB)

Second-Order Input Intercept (IIP2)

Third-Order Input Intercept (IIP3)

LO Leakage

Demodulation Bandwidth

Quadrature Phase Error1

I/Q Amplitude Imbalance1

Noise Figure (Double Sideband)

Mixer Output Impedance

Capacitive Load

Resistive Load

Mixer Peak Output Current

Conditions

Min

External input = 2 × LO frequency

100

50

50 Ω source

−12

2.7

−40

IFIP to IMXO (QMXO),

ENVG = 5 V, IMXO/QMXO load = 1.5 kΩ

Measured differentially across MXIP/MXIN

VGIN = 0.2 V (maximum voltage gain)

VGIN = 1.2 V (minimum voltage gain)

VGIN = 0.4 V (+21 dB) to 1.1 V (−14 dB)

FIF = 380 MHz ± 5% (VGIN = 1.2 V)

FIF = 900 MHz ± 5% (VGIN = 1.2 V)

VGIN = 0.2 V (maximum gain)

VGIN = 1.2 V (maximum gain)

IF1 = 385 MHz, IF2 = 386 MHz

+3 dBm each tone from 200 Ω source,

VGIN = 1.2 V (minimum gain)

−42 dBm each tone from 200 Ω source,

VGIN = 0.2 V (maximum gain)

IF1 = 381 MHz, IF2 = 381.02 MHz

Each tone 10 dB below P1dB from

200 Ω source,

VGIN = 1.2 V (minimum gain)

Each tone 10 dB below P1dB from

200 Ω source,

VGIN = 0.2 V (maximum gain)

Measured at IFIP, IFIN

Measured at IMXO/QMXO (LO = 50 MHz)

Small signal 3 dB bandwidth

LO = 380 MHz (LOIP/LOIN 760 MHz)

−0.7

vs. temperature

vs. baseband frequency (dc to 30 MHz)

−0.3

vs. temperature

vs. baseband frequency (dc to 30 MHz)

Maximum gain, from 200 Ω source,

FIF = 380 MHz

Shunt from IMXO, QMXO to VCMO

0

Shunt from IMXO, QMXO to VCMO

200

Typ

Max Unit

2000 MHz

1000 MHz

75

MHz

−10

0

dBm

5.5 V

+85 °C

200||1.1

44

25.5

−18.5

500

±0.5

0.1

1.3

−22

+13

65

18

Ω||pF

dB

dB

dB

MHz

dB

dB p-p

dB p-p

dBm

dBm

dBm

dBm

28

dBm

−8

dBm

−80

−60

75

±0.1

+0.7

−0.0032

+0.01

±0.05 +0.3

0

±0.0125

10.75

dBm

dBm

MHz

Degrees

°/°C

°/MHz

dB

dB/°C

dB

dB

40

Ω

10 pF

1.5

kΩ

2.5

mA

Rev. A | Page 3 of 28

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