W3013 Datasheet, PDF (8/12 Pages) Agere Systems – W3013 Indirect Quadrature Modulator with Gain Control

W3013 Indirect Quadrature Modulator
with Gain Control
Preliminary Data Sheet
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 VILMAX, the device is in a low-current mode. Between VIHMIN and about VCC, the device draws full supply
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.
1910 MHz
1450 MHz
850 MHz
0
–10
–20
–30
–40
–50
–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.
VCC = 3.0 V
LC FILTER = 178 MHz
–20
–25
–30
110 mVp-p
200 mVp-p
400 mVp-p
–10
–20
–30
–40
–35
–50
–40
–60
–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
–70
50
100 150 200 250 300 350 400
LO1 FREQUENCY (MHz)
Figure 7. Carrier Suppression vs. LO1 Frequency
8
Lucent Technologies Inc.