DAICO DA0425 Datasheet

FEATURES

VCA

100 - 600 MHz
20 dB Linear Range Typical
±0.5 dB Linearity

1.5 dB Insertion Loss
+42 dBm 3rd Order Intercept
14 Pin DIP

PART IDENTIFICATION

.87

.20

.22

814

.018 DIA LEAD
14 PLACES

.50

SQUARE
CORNER

.300

.600

.100

TYP

17

MODEL NO.

DA0425

PIN Diode Linear VCA

RF

IN/OUT

6

•

•

•

RF

78

GND

14

-15V13+15V1CONT4GND

•

N/C = NO INTERNAL CORRECTION

•

2, 3, 5, 10, 11, 12

N/C

RF

9

OUT/IN

RF
GND

25

20

15

10

ATTENUATION (dB)

5

0

CONTRASTING
COLOR BEAD

.xx = .02

.xxx = .010

TYPICAL PERFORMANCE

Attenuation vs Control Voltage

0+1+2+3+4+5

at 500 MHz

CONTROL VOLTAGE

GUARANTEED PERFORMANCE

Parameter Min Typ Max Units Conditions

Operating Frequency 100 600 MHz
DC Current 33 50 mA At +15 VDC Supply

Control Type 0 to 5V (Analog Input)
Control Current 0.5 1 mA 0 V = I.L

Insertion Loss 1.5 dB At 0 V Control
Attenuation

VSWR 1.1/1 1.25/1
Impedance 50 OHMS
Slew Rate 6.5 dB/µs
Intercept Points

RF Power

Operating Temperature -55 +25 +85 °CTA

Range

Slope

Linearity

2nd

3rd

Operate

No Damage

22 40 mA At -15 VDC Supply

+5 V = Max. Atten.

18 dB 0 V to 5 V Control

5.0 6.5 8.0 dB/V Ref. to Best Straight Line Fit

±0.5 ±1.0 dB Best Straight Line Fit From

IL +1.5 dB to 15 dB

+75 dBm 127 MHz / 214 MHz
+42 dBm 107 MHz / 127 MHz

+10 dBm
+20 dBm

DAICO I ndustries

Rev. C / Iss. 1