n Low-voltage operation: 2.7 V
n High-frequency operation: 2.2 GHz
n High RF output power: –10 dBm
n High-accuracy phase shifter, no trim required
n Low carrier feedthrough: –45 dBc
n Automatic power control (APC) capability
n Low-current sleep mode
n 20-pin TSSOP package
Applications
n North American IS-136
n Japan PDC (RCR STD 27)
n Japan PHS (RCR STD 28)
n GSM 900, 1800, and 1900 MHz
n Narrowband CDMA
n Digital satellite communications
Description
The W3013 is a monolithic integrated circuit that
provides indirect, quadrature modulation of an RF
carrier by I & Q baseband inputs. The function
performed by the W3013 is particularly suited for
handheld digital cellular and digital cordless
telephones that operate between 800 MHz and
2.2 GHz.
The circuit block diagram is shown below. From a
single local-oscillator input (LO1), the phase
shifter produces two LO signals with 90° phase
separation and equal amplitude. The LO signals
are fed to the in-phase (I) and quadrature (Q)
double-balanced mixers. The resulting signals are
summed and fed into an RF mixer where the
frequency can be translated to over 2 GHz.
Outputs between the summer and RF mixer are
available for external filtering. Finally, the signal is
amplified to provide a single-ended output.
The ENB/APC input with a logic low allows the
device to be put into a powerdown mode. Above
the logic low threshold, the device enters a power
control mode that provides a range of desired
output power levels.
LO1
LO1REF
I
I
–π/4
Ø
+π/4
Q
Q
∑
EXTERNAL
FILTER
INTERNAL
LOW-PASS
FILTER
LO2 LO2REF
RFOUT
RFOUT
POWER
CONTROL
ENAB/APC
Figure 1. Circuit Block Diagram
Page 2
W3013 Indirect Quadrature Modulator Preliminary Data Sheet
with Gain ControlNovember 1998
Pin Information
1
VCC
FILTA
FILTB
LO1REF
LO1
GND
2
3
I
4
5
I
6
Q
7
Q
8
9
TOP
10
VIEW
Figure 2. Pin Diagram
20
19
18
17
16
15
14
13
12
11
V
CC
RFOUT
GND
GND
ENB/APC
GND
GND
LO2REF
LO2
GND
12-2680
Table 1. Pin Descriptions
PinSymbolName/Description
1VCC
2, 3FILTA, FILTB
4I
5
6Q
7
8, 9LO1REF, LO1
10, 11, 14,
GND
I
Q
Positive Supply Voltage. For low-power/small-signal subcircuits.
Filter. Nodes A & B for parallel resonant LC.
Differential Baseband Input.
Differential Baseband Input (Inverting).
Differential Baseband Input.
Differential Baseband Input (Inverting).
First Local Oscillator Input. Either pin may be directly grounded.
Power Supply Ground.
15, 17, 18
12, 13LO2, LO2REF
16ENB/APC
19RFOUT
20VCC
Second Local Oscillator Input. Either pin may be directly grounded.
Enable/Automatic Power Control.
RF Output.
Positive Supply Voltage. For RF output stage.
2Lucent Technologies Inc.
Page 3
Preliminary Data Sheet W3013 Indirect Quadrature Modulator
November 1998with Gain Control
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.
ParameterSymbolMinMaxUnit
Ambient Operating TemperatureTA–40100°C
Storage TemperatureTstg–65150°C
Lead Temperature (soldering, 10 s)TL—300°C
Positive Supply VoltageVCC—5Vdc
Power DissipationPD—750mW
Output Current (continuous)IOUT—160mA
ac Input Voltage—GNDVCCVp-p
Enable Input VoltageVENBGNDVCCVdc
Handling Precautions
Although protection circuitry has been designed into this device, proper precautions should be taken to avoid
exposure to electrostatic discharge (ESD) during handling and mounting. Lucent Technologies Microelectronics
Group employs a human-body model (HBM) and a charged-device model (CDM) for ESD-susceptibility testing
and protection design evaluation. ESD voltage thresholds are dependent on the circuit parameters used to define
the model. No industry-wide standard has been adopted for CDM. However, a standard HBM (resistance =
1500 Ω, capacitance = 100 pF) is widely used and, therefore, can be used for comparison purposes. The HBM
ESD threshold presented here was obtained by using these circuit parameters:
ESD Threshold Voltage
DeviceRatingModel
W3013
W3013
≥1000 V
≥1000 V
HBM
CDM
Lucent Technologies Inc.3
Page 4
W3013 Indirect Quadrature Modulator Preliminary Data Sheet
with Gain ControlNovember 1998
Operating Ranges
This table lists the ranges of external conditions in which the W3013 provides general functionality that may be
useful in specific applications without risk of permanent damage. However, performance is not guaranteed over
the full range of all possible conditions. The conditions for guaranteed performance are described in the
Electrical Characteristics table.
ParameterMinTypMaxUnit
VCC2.7—3.6V
fLO1100178350MHz
VLO1100250600mVp-p
fLO210016202200MHz
VLO2100250600mVp-p
fRF<800—>2200MHz
I & Q Input Range of dc Bias for 1 Vp-p Differential InputVCC/2 – 0.1VCC/2VCC/2 + 0.1Vdc
I & Q Input Range of dc Bias for 1 Vp-p Single-ended
Input
I (Q) to I ( Q ) Differential Input Swing*
Ambient Operating Temperature–352585°C
VCC/2 – 0.1VCC/2VCC/2 + 0.1Vdc
—1.01.1Vp-p
* Distortion-dependent, e.g., 1.3 Vp-p π/4 DQPSK peak voltage meets PDC or IS-136 distortion specification under random data modulation.
Carrier Suppression (relative to wanted sideband)3550—dBc
Lower Sideband Suppression3545—dBc
Transmitted I and Q Amplitude Error—±0.1—dB
Transmitted I and Q Phase Error—±1—degrees
Error Vector Magnitude (See page 6.)—1.35%
—<150µA
600 || 1.2
—
Ω|| pF
MΩ
4Lucent Technologies Inc.
Page 5
Preliminary Data Sheet W3013 Indirect Quadrature Modulator
November 1998with Gain Control
0.35-DQPSK Modulation per IS-136:
±30 kHz—–39–35dBc
±60 kHz—–64–57dBc
±90 kHz—–67–57dBc
0.5-DQPSK Modulation per Japan PDC at Maximum
Output:
±50 kHz—–60–54dBc
±100 kHz—–73–65dBc
0.5-DQPSK Modulation per Japan PHS at Maximum
Output:
±600 kHz—–62–50dBc
±900 kHz—–63–50dBc
Enable/APC:
VIHMIN (higher voltage turns device on)—0.811.0V
VILMAX (lower voltage turns device off)0.6——V
IILMAX (VENABLE/APC = 0.4 V)——<1µA
IIHMAX (VENABLE/APC = 2.7 V)——40µA
Powerup/Powerdown Time——4µs
APC Voltage for Minimum Output Power—1.0—Vdc
APC Voltage for Maximum Output Power2.5——Vdc
APC Bandwidth5——MHz
* Usable APC range is defined to be the satisfaction of respective transmitter system requirements in the adjacent and alternate channels,
as well as IQ offset and EVM requirements in each standard.
3545—dBc
4554—dBc
Lucent Technologies Inc.5
Page 6
W3013 Indirect Quadrature Modulator Preliminary Data Sheet
with Gain ControlNovember 1998
Error Vector Magnitude (EVM) Testing
Error vector magnitude (EVM) is estimated by feeding signals to the W3013 as described at the top of the
Electrical Characteristics table. A narrowband, sine-wave modulation output spectrum is shown in Figure 3.
The data presented in the spectrum above would yield:
EVM (%) = 100 Ÿ [79e–6 + 89e–6 + 891e–6 + 251e–6 + 2239e–6 + 708e–6 + 282e–6 + 63e–6 +
141e–6]/0.316e
= 1.5%
This approximates worst-case digital modulation results because the sine-wave modulation estimate assumes all
spurious outputs are in phase and adds their magnitudes as scalars. In addition, this estimate includes fullamplitude measurements of spurious peaks that would appear in adjacent and alternate channels, where a
receiver would otherwise provide attenuation. The L3 third-order intermodulation peak and LSB (lower sideband)
are normally the unwanted output frequencies that dominate the EVM estimate.
6Lucent Technologies Inc.
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Preliminary Data Sheet W3013 Indirect Quadrature Modulator
November 1998with Gain Control
Application Circuits
A typical application circuit for the W3013 is shown in Figure 4. The LC filter components, LF and CF, are chosen
to have a parallel resonance at the same frequency as LO1, according to the formula
f
O
=
1
FF
)12e2.1C(L2
−+
where fO is the center of the filter passband in Hz, LF is the filter inductor in Henries, and CF is the filter capacitor
in farads. Use of an inductor of 100 nH or larger in the filter will minimize the variation of output power due to
tolerance variation of the filter components.
If the transmitter frequency plan requires the use of more than one LO1 frequency, the W3013 RF output power
may be approximately equalized by designing the LC filter center frequency at
ff LOf LOO =(max) (min)11,
i.e., the geometric mean of the maximum and minimum LO1 frequencies.
Board and device parasitic capacitance and inductance must be accounted for in calculating LF and CF.
The matching network will vary depending on the application, but must include a series capacitor to block dc
connections to the W3013 output pin if the load is conductive. For optimum performance, the bypass capacitor,
C1, should have a series self-resonant frequency that is close to the output frequency and should be mounted
near pin 20. It is expected that the positive supply (VCC) will appear as a low impedance to ground at low
frequencies, using a voltage regulator and/or a large capacitor such as a 10 µF tantalum electrolytic.
+2.7 V
C1
MATCHING
NETWORK
z
OUTPUT
z
ENB/APC
LO2
50 Ω
(OPT)
LF
SIGNALS
FROM CODEC
LO1
50 Ω
(OPT)
CF
1
2
3
I
I
Q
Q
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Figure 4. Typical Application Circuit
Lucent Technologies Inc.7
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W3013 Indirect Quadrature Modulator Preliminary Data Sheet
with Gain Control November 1998
ENB/APC Function
The ENB/APC lead is used to turn the device on and to control the output power. If the voltage on this lead is
below V
current and is in a power-control mode. In this region, the output power will vary with the voltage on the
ENB/APC lead as shown in Figure 5.
ILMAX, the device is in a low-current mode. Between VIHMIN and about VCC, the device draws full supply
1910 MHz
1450 MHz
850 MHz
0
–10
–20
–30
–40
–50
OUTPUT POWER
–60
–70
0.7 1.2 1.7 2.2 2.7
APC VOLTAGE
Figure 5. Relative RF Output Power vs. APC Voltage
Characteristic Curves
Unless otherwise specified, the test conditions are identical to those listed for Table 2.
110 mVp-p
V
CC = 3.0 V
LC FILTER = 178 MHz
–20
–25
–30
–35
–40
SUPPRESSION (dB)
–45
–50
50 100 150 200 250 300 350 400
LO1 FREQUENCY (MHz)
Figure 6. Unwanted Sideband Suppression vs.
LO1 Frequency and LO1 Input Level
200 mVp-p
400 mVp-p
–10
–20
–30
–40
–50
SUPPRESSION (dB)
–60
–70
50 100 150 200 250 300 350 400
LO1 FREQUENCY (MHz)
Figure 7. Carrier Suppression vs. LO1 Frequency
8 Lucent Technologies Inc.
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Preliminary Data Sheet W3013 Indirect Quadrature Modulator
November 1998with Gain Control
Characteristic Curves (continued)
Vcc = 3.0
I/Q = π/4 DQPSK
α = 0.35
1.3 Vp-p (RANDOM DATA)
–20
–25
–30
–35
–40
–45
–50
–55
–60
SUPPRESSION (dBc/24.3 kHz)
–65
–70
–55 –50 –45 –40 –35 –30 –25 –20 –15 –10
OUTPUT POWER/24.3 kHz (dBm)
Figure 8. Adjacent Channel Suppression for
IS-136 vs. 1900 MHz Output Power
30 kHz ACP
60 kHz ACP
90 kHz ACP
2.8 mVp-p
500 mVp-p
1 Vp-p
0
–3
–6
–9
–12
–15
–18
–21
–24
NORMALIZED GAIN (dB)
–27
–30
–33
0.010.11101001000
I/Q FREQUENCY (MHz)
Figure 10. IQ Bandwidth vs. ac Input Voltage
Vcc = 2.7
I/Q = π/4 DQPSK
α = 0.35
1.3 Vp-p (RANDOM DATA)
–40
–45
–50
–55
–60
–65
–70
SUPPRESSION (dBc/21 kHz)
–75
–80
–55 –50 –45 –40 –35 –30 –25 –20 –15 –10 –5
ACP 50 kHz
ACP 100 kHz
OUTPUT POWER/21 kHz (dBm)
Figure 9. Adjacent Channel Suppression for
PDC vs. 940 MHz Output Power
Lucent Technologies Inc.9
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W3013 Indirect Quadrature Modulator Preliminary Data Sheet
with Gain ControlNovember 1998
RF Output Impedance
The output impedance of the RF output pin is shown in Figure 11 and Table 3.
Figure 11. RFOUT Impedance at Pin 19 Contact with Board (800 MHz to 2000 MHz)
* Contact your Microelectronics Group Account Manager for minimum order requirements.
For additional information, contact your Microelectronics Group Account Manager or the following:
INTERNET:http://www.lucent.com/micro
E-MAIL:docmaster@micro.lucent.com
N. AMERICAMicroelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103
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EUROPE:Data Requests: MICROELECTRONICS GROUP DATALINE: Tel. (44) 1189 324 299, FAX (44) 1189 328 148
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