AD8343_15 datasheet(3/32 Pages) AD

Nome de Peças	AD8343

Descrição Electrónicos	DC-to-2.5 GHz High IP3 Active Mixer

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Fabricante Electrônico	AD [Analog Devices]

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AD8343

Rev. B | Page 3 of 32

SPECIFICATIONS

BASIC OPERATING INSTRUCTIONS

VS = 5.0 V, TA = 25°C, unless otherwise noted.

Table 1.

Parameter

Conditions/Comments

Min

Typ

Max

Unit

INPUT INTERFACE (INPP, INPM)

Differential Open Emitter

DC Bias Voltage

Internally generated

1.1

1.2

1.3

V

Operating Current Each Input (IO)

Current set by R3, R4; see Figure 72

5

17.6

20

mA

Value of Bias Setting Resistor1

1% bias resistors; R3, R4; see Figure 72

68.1

Ω

Port Differential Impedance

f = 50 MHz; R3 and R4 = 68.1 Ω; see Figure 57

5.6 + j 1.4

Ω

OUTPUT INTERFACE (OUTP, OUTM)

Differential Open Collector

DC Bias Voltage

Externally applied

4.5

5

5.5

V

Voltage Swing

Collector bias (VS) = VPOS

1.65

VS ± 1

VS + 2

V

Operating Current Each Output

Same as input current

IO

mA

Port Differential Impedance

f = 50 MHz; see Figure 60

900 − j 77

Ω

LO INTERFACE (LOIP, LOIM)

Differential Common Base Stage

DC Bias Voltage2

Internally generated; (port is typically ac-coupled)

300

360

450

mV

LO Input Power

50 Ω impedance; see Figure 65

−12

−10

−3

dBm

Port Differential Reflection Coefficient

See Figure 64

−10

dB

POWER-DOWN INTERFACE (PWDN)

PWDN Threshold

Assured on

VS − 1.5

V

Assured off

VS − 0.5

V

PWDN Response Time3

Time from device on to off; see Figure 52

2.2

μs

Time from device off to on; see Figure 53

500

ns

PWDN Input Bias Current

PWDN = 0 V (device on)

−160

−250

μA

PWDN = 5 V (device off )

0

μA

POWER SUPPLY

Supply Voltage Range

4.5

5.0

5.5

V

Total Quiescent Current

R3 and R4 = 68.1 Ω; see Figure 72

50

60

mA

Over temperature

75

mA

Powered-Down Current

VS = 5.5 V

20

95

μA

VS = 4.5 V

6

15

μA

Over temperature; VS = 5.5 V

50

150

μA

1 The balance in the bias current in the two legs of the mixer input is important to applications where a low feedthrough of the local oscillator (LO) is critical.

2 This voltage is proportional to absolute temperature (PTAT). See the DC Coupling the LO section for more information regarding this interface.

3 Response time until device meets all specified conditions.

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