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LUCW3000CCN, LUCW3000CCN-TR, LUCW3000CN-DT

Table of contents:
Info of LUCW3000CCN
Info of LUCW3000CCN-TR
Info of LUCW3000CN-DT

LUCW3000CCN, LUCW3000CCN-TR, LUCW3000CN-DT Selling Leads, Datasheet

MFG:LUCENT Package Cooled:TSSOP D/C:1999

LUCW3000CCN, LUCW3000CCN-TR, LUCW3000CN-DT Picture

LUCW3000CCN, LUCW3000CCN-TR, LUCW3000CN-DT Datasheet download

Five Points

Part Number: LUCW3000CCN

MFG: LUCENT

Package Cooled: TSSOP

D/C: 1999

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LUCW3000CCN General Description

The W3000 is a high-performance UHF RF PLL synthesizer, designed for use in digital wireless communication
applications. Particular emphasis in the design has been placed on dual-band applications, with near-seamless
switching between operational bands without the need for external loop-filter circuitry other than that required for
single band applications. In combination with a suitable reference crystal, UHF VCO, and associated loop-filter
components, the W3000 offers a very low-noise oscillator solution.

The reference signal is divided by a programmable 11-bit counter to provide a wide range of comparison
frequencies, allowing compliance with the various standards. The reference input is rising-edge triggered, and we
recommend that an inverting buffer be used when the W3000 is interfaced to a commercial TCXO.
The MAIN_IN signal normally associated with the UHF VCO is fed into a dual modulus prescaler (64/65) and is
then divided by the 11-bit main counter to be compared to the output of the reference counter in a digital phase
detector.

The W3000 is implemented with programmable charge-pump currents to allow fast switching between bands for
dual-band applications, without changing the loop filter. The charge pump can be programmed internally, or
externally with a resistor (recommended). Charge pump outputs can be disabled, thereby allowing open-loop
VCO modulation schemes.

With synchronous reloading, the counter reloads a new programmed value when the counter reaches zero. With
forced counter reloading, the reloading occurs when the programmed word is latched in. These techniques can
improve lock time when performing a dual-band hop or in start-up conditions.
The W3000 uses a standard 3-wire programming bus (data, enable, clock) that operates up to 10 MHz. This
serial interface is via a 24-bit word that incorporates both register addressing and device addressing allowing two
chips to share the bus.

LUCW3000CCN Maximum Ratings

Parameter	Min	Symbol	Max	Unit
Ambient Operating Temperature	30	TA	8	°C
Storage Temperature	65	Tstg	150	°C
Lead Temperature (soldering, 10 s)	-	TL	300	°C
Positive Supply Voltage	0	VDD	4.5	Vdc
Positive Charge Pump Supply Voltage	0	VDDC	4.5	Vdc
Power Dissipation		PD	250	mW
ac Input Voltage	-	-	VDD	Vp-p
Digital Voltages	Vss 0.3	-	VDD + 0.3	Vdc

LUCW3000CCN Features

2.2 GHz operational
Dual-band optimized
Low supply current (5.1 mA)
Surface-mount 14-pin TSSOP package
Scaled PD gain for dual-band operation
Programmable phase-detector polarity
Synchronous or forced counter update loading
Powerdown mode via external pin or serial bus
Low-load capacitance on reference input buffer

LUCW3000CCN Typical Application

GSM900/1800/1900
North American IS-136/137
Personal Digital Cellular (Japan RCR-27)
Personal Handy Phone (Japan RCR-28)
CDMA (IS-95)

LUCW3000CCN Connection Diagram

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