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For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824

978-250-3343 tel • 978-250-3373 fax • Order On-line at www.hittite.com

Application Support: apps@hittite.com

HMC984LP4E

v02.0112

DIGITAL PHASE-FREQUENCY DETECTOR

Table 2. Pin Descriptions

Pin Number

Function

Description

Interface Schematic

9

CP

Charge Pump Output Pin

10

VPPCP

5 V Analog Power Supply Pin Charge Pump

11

AVDD

3 V Analog Supply

12

BIAS

External Decoupling for Analog Bias Circuits

13

RVDD

3 V Supply Pin for Reference Circuits

14

XREFP

Reference/TCXO Input Pin

15

NC

No Connect Pin

16

DVDD

3 V Digital Supply Pin

17

CEN

Chip Enable Pin

18

SDO

Serial Data Output Pin

Continued...