ST DCPL-WB-00C2 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)
■ 37 dB typical coupling factor
■ high directivity (> 20 dB)
■ high ESD ruggedness
■ lead-free CSP package
■ Flip-Chip package
■ small footprint: 1700 x 1850 µm
■ very low profile (< 670 µm thickness)
Benefits
■ high RF performance
■ RF module size reduction
DCPL-WB-00C2
Lead-free Flip Chip (8 bumps)
Figure 1. Pin configuration (bump view)
A1A2A3
LB Path
ISO
HB Path
B1B3
C1C2C3
CPL
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
Description
The DCPL-WB-00C2 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-00C2 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.
October 2010 Doc ID 17994 Rev 1 1/11
www.st.com
11
Characteristics DCPL-WB-00C2
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) - 36 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
IN
, LB
, LB
, HBIN, HB
OUT
, HBIN, HB
OUT
, air discharge
OUT
, contact discharge
OUT
Human body model, JESD22-A114-B, All I/O 2 - - kV
Machine model, JESD22-A115-A, All I/O 100 - - V
Charge device model, JESD22-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
--kV
±8
= 25 °C)
amb
Value
Min. Typ. Max.
Unit
2/11 Doc ID 17994 Rev 1
DCPL-WB-00C2 Characteristics
Table 4. Electrical characteristics - LB path RF performance (T
Symbol Parameter Test condition
T
IL
Operating temperature -30 - +85 °C
OP
Frequency range
f
(bandwidth)
LB path insertion loss
LB
From 824 MHz
to 960 MHz
Min. Typ. Max.
824 - 960 MHz
Value
-0.10.2dB
amb
= 25 °C)
Unit
RL
CPLD
Ripple
DIR
LB path return loss
LB
LB 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
--0.5dB
22 - - dB
Table 5. Electrical characteristics - HB path RF performance (T
Symbol Parameter Test condition
T
IL
RL
CPLD
Operating temperature -30 - +85 °C
OP
Frequency range
f
(bandwidth)
HB path insertion loss
HB
HB path return loss
HB
HB coupling factor
HB
From 1710 MHz
to 2170 MHz
From 1710 MHz
to 2170 MHz
From 1710 MHz
to 1980 MHz
(1710 to 1785 MHz)
Ripple
Coupling ripple in HB
HB
(1850 to 1910 MHz)
(1920 to 1980 MHz)
DIR
HB coupler directivity
HB
From 1710 MHz
to 1980 MHz
Min. Typ. Max.
1710 - 1980 MHz
15 - - dB
29 - 34 dB
22 - - dB
Value
-0.10.2dB
--0.5dB
amb
= 25 °C)
Unit
Doc ID 17994 Rev 1 3/11
Characteristics DCPL-WB-00C2
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 - LB (dB)
0.00
-0.05
-0.10
-0.15
F (MHz)
-0.20
800 820 840 860 880 900 920 940 960 980 1000
Figure 3. High band path insertion loss
IL - HB (dB)
0.00
-0.05
-0.10
-0.15
-0.20
1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200
Figure 4. Low band path coupling factor
CPLD - LB (dB)
-30
-31
-32
-33
-34
-35
-36
-37
-38
-39
-40
800 820 840 860 880 900 920 940 960 980 1000
F (MHz)
F (MHz)
4/11 Doc ID 17994 Rev 1
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