Notes

A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.

B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.

C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled

to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp

50

Digital Step Attenuator

Precision

ZFAT-R512

CASE STYLE: SSS173

Maximum Ratings

Features

Operating Temperature

-55°C to 100°C

Storage Temperature

-55°C to 125°C

Input Power

15 dBm

DC Voltage

5.5 V

TTL

5.5V

Digital Step Attenuator Electrical Specifications

REV. A

M150685

ZFAT-R512

DJ/VV/CP

150402

• wideband, 10 to 1000 MHz

• excellent step accuracy, 0.2 dB typ.

• small, shielded metal case

MODEL

NO.

FREQUENCY

(MHz)

PRIMARY ATTENUATION STEPS

(dB)

@TTL CONTROL PORT

ATTENUATION

(dB)

VSWR

(:1)

f

L

f

U

#1

#2

#3

(1,1,1)**

Nom.

(0,0,0)

Max.

L

M

U

ZFAT-R512

10

1000

0.5±0.18

1±0.25

2±0.25

3.5

4.0

1.6

1.4

1.5

Applications

• base stations

• cellular

• test sets

** Total attenuation above thru-loss.

1. Step accuracy is specified for basic steps. For combination of steps accuracy is additive.

2. Thru-loss is minimum insertion loss with all attenuation elements bypassed (All TTL controls state are Low)

Additional Specifications

DC Voltage

+5V

DC Current

12mA max.

Switching Time (50% TTL to within specified

accuracy of the next-selected attenuation step,

and to within 0.1 dB of steady-state Thru-Loss)

10µs typ., 15µs max.,

TTL Input High Threshold

2V min

TTL Input Low Threshold

0.8V max.

TTL Toggle Rate

50 kHz typ.

1dB Compression

0 dBm (10-100 MHz)

+10 dBm (100-1000MHz)

L=10 to 100 MHz

M=100 to 500 MHz

U=500 to 1000 MHz

Connectors

Model

Price

Qty.

SMA

ZFAT-R512

$89.95

(1-9)

BRACKET (OPTION “B”)

$5.00

(1+)

Outline Dimensions (

)

inch

mm

Outline Drawing

A

B

C

D

E

F

G

H

1.25

1.25

0.75

.63

.38 1.000

.125 1.000

31.75 31.75 19.05 16.00

9.65 25.40

3.18 25.40

J

K

L

MN

P

Q

wt

--

--

.125 1.688

2.18

.75

.07 grams

--

--

3.18 42.88 55.37 19.05

1.78

75

Permanent damage may occur if any of these limits are exceeded.