W3000 查看數據表（PDF） - Agere -> LSI Corporation

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W3000

PLL Dual-Band Frequency Synthesizer

Agere -> LSI Corporation 

W3000 PLL Dual-Band Frequency Synthesizer

Advance Data Sheet

December 1999

Pin Information

VDDC

CPOUT

VSS1

VSS2

MAIN_IN

VDD1

VDD2

1

14

2

13

3

12

4

11

5

10

6

9

7

8

Figure 3. Pin Diagram

LAT

DAT

CLK

PWRDN

REF_IN

RES

LOCKDET

Table 1. Pin Descriptions

Pin Symbol Function

Name/Description

1

VDDC

Supply Charge Pump Positive Supply Voltage. Must be ≥VDD. (VDD = VDD1 = VDD2).

2 CPOUT Output Charge Pump Output.

3

VSS1

Ground Ground 1. Charge pump and logic ground.

4

VSS2

Ground Ground 2. Prescaler and reference ground.

5 MAIN_IN Input VCO Signal Input. Must be ac-coupled.

6

VDD1

Supply Voltage Supply 1. Prescaler supply voltage.

7

VDD2

Supply Voltage Supply 2. Logic and reference supply (must be equal to VDD1).

8 LOCKDET Output Lock Detect Output.

9

RES

Input External Resistor Input. Add resistor to VDDC if required (>10 kΩ).

10 REF_IN

11 PWRDN

Input

Input

Reference Frequency Input. Connection from reference oscillator. Must be ac-

coupled.

Powerdown. For low current operation. (Low is powerdown mode.)

12

CLK

Input Serial Input. Programming clock line.

13

DAT

Input Serial Input. Programming data line.

14

LAT

Input Serial Input. Programming latch line.

4

Lucent Technologies Inc.

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