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1243-TYPE

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1243-TYPE 技术参数

Data Sheet

W3011

September 1999

1 GHz Quadrature Modulator

RFOUT Matching: Basic Open Collector Termination

The W3011 RF output uses an open collector output architecture. To operate properly, this requires that dc bias

current be provided through the output pin (pin 17). Thus, the output matching network must always provide a

shunt dc connection to the positive power supply. Examples of such a connection include a shunt-matching

inductor or a shunt RF choke. Figure 4 illustrates a simple RFOUT matching configuration.

VCC

TO TX SAW FILTER

(50 W)

Figure 4. W3011 RF Output Diagram

Offset Mixer

W3011 with Offset Mixer Disabled

If the offset mixer in the W3011 is not required for the frequency plan, the offset mixer may be turned off by

connecting the positive supply (VCC) to any or all of pins 11 (LOHN), 12 (LOHP), 13 (LOLN), or 14 (LOLP), as

illustrated in Figure 5 below. Disabling the offset mixer reduces current consumption 2 mA to 3 mA. If pin 11 is

connected to VCC, pins 12, 13, and 14 must be connected to VCC or no-connect (NC). Connect the RF VCO to

either pin 9 or pin 10 through a low-impedance coupling capacitor, and connect the unused pin (10 or 9) through

a similar capacitor to ground.

VCC

TO TX SAW FILTER

APC

CONNECT VCC TO ANY OF PINS

11—14 TO DISABLE OFFSET

MIXER AND REDUCE POWER

SUPPLY CURRENT

ENB

VCC

OPTIONAL TERMINATION RESISTOR

Figure 5. W3011 Application with Offset Mixer Disabled

Lucent Technologies Inc.

1...4 5 678 9 10...12

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型号	品牌	描述	获取价格	数据表
124-43-304-41-002000	MILL-MAX	IC Socket, DIP4, 4 Contact(s), ROHS COMPLIANT	获取价格
124-43-308-41-002000	MILL-MAX	IC Socket, DIP8, 8 Contact(s), ROHS COMPLIANT	获取价格
124-43-310-41-002000	MILL-MAX	IC Socket, DIP10, 10 Contact(s), ROHS COMPLIANT	获取价格
124-43-314-41-002000	MILL-MAX	IC Socket, DIP14, 14 Contact(s), ROHS COMPLIANT	获取价格
124-43-316-41-002000	MILL-MAX	IC Socket, DIP16, 16 Contact(s), ROHS COMPLIANT	获取价格
124-43-318-41-001000	MILL-MAX	IC Socket, DIP18, 18 Contact(s), ROHS COMPLIANT	获取价格