MACOM ETK4-1TTR, ETK4-1T Datasheet

E-Series RF 4:1 Transformer

8.0 - 750 MHz

Features

●

Surface Mount

●

4:1 Impedance Ratio

●

CT on Secondary

Description

M/A-COM’s ETK4-1T is a 4:1 RF transformer in a
low-cost, surface mount package. Ideally suited for high
volume cellular and wireless applications. Typical
applications include single to balanced mode conversion
and impedance matching.

Schematic

PRI SEC

ETK4-1T

V3.00

SM-22

Specifications @ 25°C

Frequency Range: 8.0 - 750 MHz

Parameter Maximum Mean (x) Sigma ( σ)

Insertion Loss (f

70 - 250 MHz 2.0 dB 1.56 dB 0.007
15 - 600 MHz 3.0 dB – –

8.0 - 750 MHz 4.0 dB – –

Amplitude Unbalance

8.0 - 750 MHz 1.0 dB – –

Phase Unbalance

8.0 - 750 MHz 20° – –

Note: Mean and sigma calculated from average loss @ (fU- fL)/2 + fL.

L

- fU)

Pin Configuration

Unless Otherwise Noted: .x = ±0.04 (1.00)

Ordering Information

Part No. Packaging

ETK4-1T Tubes
ETK4-1TTR Tape & Reel

M/A-COM, Inc.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Specifications Subject to Change Without Notice.

Fax [phone] Fax [phone] Fax [phone]

Dimensions in ( ) are in mm.

.xx = ±0.02 (0.50)
.xxx = ±0.010 (0.250)

Pin No. Function

1 Secondary dot
2 Secondary CT
3 Secondary
4 Primary
5 Primary dot

S 0934 D

1

E-Series RF 4:1 Transformer

Absolute Maximum Ratings

Parameter Absolute Maximum

RF Power 250 mW
DC Current 30 mA
Operating/Storage Temp. -30°C to +85°C

Typical Performance

Over Extended Bandwidth (30 kHz - 3.0 GHz)

ETK4-1T

V3.00

INSERTION LOSS vs FREQUENCY

–13.0 avgs31 –3.0B

–13.0 avgs21 –3.0A

30.0 kHz freq 3.0 GHz A

30.0 kHz freq 3.0 GHz B

INSERTION LOSS (-3 to -13 dB) vs FREQ (30 kHz to 3 GHz)

AMPLITUDE UNBALANCE vs FREQUENCY

A1

B1

A1

PHASE UNBALANCE vs FREQUENCY

0.0 pb02 360.0B

0.0 pb01 360.0A

30.0 kHz freq 3.0 GHz A

30.0 kHz freq 3.0 GHz B

PHASE UNBALANCE (0 to 360 deg) vs FREQ (30 kHz to 3 GHz)

INPUT IMPEDANCE vs FREQUENCY

B1

A1

B1

–5.0 avgab 5.0A

30.0 kHz freq 3.0 GHz A

AMP UNBALANCE (5 to -5 dB) vs FREQ (30 kHz to 3 GHz)

Y–FS= 1.0 avgiprl B

30.0 kHz freq 3.0 GHz B

INPUT IMPEDANCE on SMITH CHART; FREQ (30 kHz to 3 GHz)

Note: All measurements performed on Hewlett Packard 8753D Network Analyzer (201 sample points, linear scale) in a 50 ohm coplanar waveguide
environment. Tables created using MDS software.

S-Parameter data available by E-Mail. Send your request to: [e-mail].

2

Specifications Subject to Change Without Notice.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Fax [phone] Fax [phone] Fax [phone]

M/A-COM, Inc.