ST DCPL-WB-00D3 User Manual

Wide-band, dual-path directional coupler with ISO port

Features

■ 50 Ω nominal input / output impedance

■ Wide operating frequency range:

– 824 MHz-2170 MHz

■ Low insertion loss (< 0.2 dB)

■ High directivity (> 20 dB)

■ High ESD ruggedness

■ Lead-free CSP package

■ Small footprint: 1670 x 1440 µm

■ Very low profile (< 650 µm thickness)

DCPL-WB-00D3

Lead-free Flip Chip (8 bumps)

Figure 1. Pin configuration (bump view)

A1A2A3

Benefits

■ High RF performance

■ RF module size reduction

Complies with the following standards:

■ IEC 61000-4-2 level 4:

– 15 kV (air discharge)
– 8 kV (contact discharge)

Applications

Multi-band equipment such as:

■ Power amplifier module

■ Front end module

■ GSM/WCDMA mobile phone

LB Path

B1B3

HB Path

C1C2C3

Description

The DCPL-WB-00D3 is a wide-band, dual-path
directional coupler designed to measure cell
phone transmission output power in
GSM/WCDMA applications. This dual path CPL
has been customized for wide-band operating
frequencies (EGSM and CELL, PCS, DCS,
WCDMA band I) with less than 0.2 dB insertion
losses in the transmission bandwidth (824 MHz ­1980 MHz).

This device is built with two different RF couplers
(one dedicated to LB, the other dedicated to HB)
sharing the same coupled and isolated ports.The
DCPL-WB-00-D3 has been designed using
STMicroelectronics IPD (integrated passive
device) technology on non-conductive glass
substrate to optimize RF performance.

The device is delivered 100% tested in tape and
reel.

April 2011 Doc ID 17967 Rev 1 1/11

www.st.com

11

Characteristics DCPL-WB-00D3

1 Characteristics

Table 1. Device pin configuration

Bump Name Description

A1 Lbin LB coupler RF input

A2 GND RF ground

A3 Lbout LB coupler RF output

B1 CPLD Coupler port

B3 ISO Isolated port

C1 Hbin HB coupler RF input

C2 GND RF ground

C3 Hbout HB coupler output

Table 2. Absolute maximum rating (limiting values)

Value

Symbol Parameter

Min. Typ. Max.

Unit

P

IN

Input Power RF

(CW mode) 35 dBm

IN

ESD ratings IEC 61000-4-2 (C = 150 pF, R = 330 Ω)

V

ESD (IEC)

V

ESD (HBM)

V

ESD (MM)

V

ESD (CDM)

T

OP

Table 3. Electrical characteristics - impedances (T

, LB

LB

IN

LBIN, LB

, HBIN, HB

OUT

, HBIN, HB

OUT

, air discharge

OUT

, contact discharge

OUT

Human body model, JESD 22-A114F, all I/O 2 kV

Machine model, JESD 22-A115-A, all I/O 100 V

Charge device model, JESD 22-C101-C, all I/O 500 V

Operating temperature -30 +85 °C

Symbol Parameter

Z

Z

Z

OUT

Z

CPL

ISO

Nominal output impedance (LB and HB paths) 50 Ω

Nominal input impedance (LB and HB paths) 50 Ω

IN

Nominal coupled port impedance 50 Ω

Nominal isolated port impedance 50 Ω

±15

±8

= 25 °C)

amb

Value

Min. Typ. Max.

kV

Unit

2/11 Doc ID 17967 Rev 1

DCPL-WB-00D3 Characteristics

Table 4. Electrical characteristics - LB path RF performance (T

Symbol Parameter Test condition

Frequency range

f

(bandwidth)

IL

LB path insertion loss

LB

From 824 MHz
to 960 MHz

Min. Typ. Max.

824 960 MHz

Value

= 25 °C)

amb

Unit

0.1 0.2 dB

RL

CPLD

Ripple

DIR

LB path return loss

LB

LB path coupling factor

LB

Coupling ripple in LB

LB

LB coupler directivity

LB

From 824 MHz
to 960 MHz

From 824 MHz
to 915 MHz

(824 to 849 MHz)
(880 to 915 MHz)

From 824 MHz
to 915 MHz

15 dB

32 37 dB

20 dB

Table 5. Electrical characteristics - HB path RF performance (T

Symbol Parameter Test condition

Frequency range

f

(bandwidth)

IL

HB

RL

CPLD

Ripple

B

DIR

HB path insertion loss

HB path return loss

HB

HB path coupling factor

HB

H

Coupling ripple in HB

HB coupler directivity

HB

From 1710 MHz
to 2170 MHz

From 1710 MHz
to 2170 MHz

From 1710 MHz
to 1980 MHz

(1710 to 1785 MHz)
(1850 to 1910 MHz)
(1920 to 1980 MHz)

From 1710 MHz
to 1980 MHz

Min. Typ. Max.

1710 1980 MHz

15 dB

29 34 dB

20 dB

Value

0.1 0.2 dB

amb

0.5 dB

= 25 °C)

Unit

0.5 dB

Doc ID 17967 Rev 1 3/11

Characteristics DCPL-WB-00D3

1.1 RF measurement (on reference evaluation board)

Measurements done on reference evaluation board under 50 Ω, de-embedding at
DCPL-WB-00D3 bumps.

Figure 2. Low band path insertion loss

IL

-0.00

dB

-0.05

-0.10

-0.15

-0.20

-0.25

7.5E8

8.0E8

8.5E8

Figure 3. High band path insertion loss

IL

-0.00

dB

-0.05

-0.10

-0.15

-0.20

-0.25

1.5E9

1.7E9

1.9E9

Figure 4. Low band path coupling factor

CPLD

-31

dB

-32

-33

-34

-35

-36

-37

-38

7.5E8

8.0E8

8.5E8

9.0E8

2.1E9

9.0E8

9.5E8

2.3E9

9.5E8

F(Hz)

1.0E9

F(Hz)

2.5E9

F(Hz)

1.0E9

4/11 Doc ID 17967 Rev 1