ARA1400 데이터 시트보기 (PDF) - ANADIGICS

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ARA1400

Reverse Amplifier with Step Attenuator

ANADIGICS 

ARA1400

continued: AC Electrical Specifications

(TA = 25 °C; VDD, VATTN = +5.0 VDC; Tx = 0 V (switch closed), Tx = +5 V (switch open))

PARAMETER

MIN TYP MAX UNIT COMMENTS

Input Return Loss

(75 Ohm characteristic impedance)

-

Output Impedance

-

Output Return Loss

-

(75 Ohm characteristic impedance)

-

Output Voltage Transient

switch closed / switch open

-

Note: As measured in ANADIGICS test fixture.

-20

-15

dB

-20

-12

-15

-10

Ohms

Switch closed

Switch open

-17

-15

-12

-10

dB

Switch closed

Switch open

4

7 mVp-p

PARAMETER

Table 6: Logic Interface Specifications

(TA = 25 °C; VDD, VATTN = +5.0 VDC)

MIN TYP MAX UNIT COMMENTS

Attenuator Control Logic

VIN,LOW

VIN,HIGH

0

-

2.7

-

0.5

5.5

V

Bypasses atten. stage

Enables atten. stage

Attenuator Control Impedance

-

5K

-

Ohms

Output Switch Control Logic

VIN,LOW

VIN,HIGH

0

-

2.8

-

1

5.5

V

Switch closed

Swicth open

Output Switch Control Impedance

-

10 K

-

Ohms

Table 7: Attenuator Logic

ATTENUATION (dB)

0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60

4 dB Logic Input (pin 16)

LHLHLHLHLHLHLHLH

8 dB Logic Input (pin 15)

L L HHL L HHL LHHL L HH

16 dB Logic Input (pin 14) L L L L H H H H L L L L H H H H

32 dB Logic Input (pin 13) L L L L L L L L H H H H H H H H

Notes: “L” = logic low, “H” = logic high

6

Data Sheet - Rev 2.1

03/2004

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