GRAYCHIP,INC.

-iv -

APRIL 27, 1999

GC4014 QUAD RECEIVER CHIP

DATA SHEET REV 0.5

This document contains information which may be changed at any time without notice

LIST OF FIGURES

Figure 1:

GC4014 Block Diagram .................................................................................................................. 1

Figure 2:

Control I/O Timing ........................................................................................................................... 3

Figure 3:

The Down Converter Channel......................................................................................................... 4

Figure 4:

NCO Circuit ..................................................................................................................................... 5

Figure 5:

Example NCO Spurs....................................................................................................................... 5

Figure 6:

NCO Peak Spur Scan Plot .............................................................................................................. 6

Figure 7:

Four Stage CIC Decimate by N Filter.............................................................................................. 6

Figure 8:

Combined CFIR and CIC Frequency Response ............................................................................. 7

Figure 9:

Overall CIC-CFIR-PFIR Response ................................................................................................. 8

Figure 10: Serial Output Formats ................................................................................................................... 11

Figure 11: Overall Frequency Response for GSM ......................................................................................... 32

Figure 12: Overall Frequency Response for DAMPS..................................................................................... 34

LIST OF TABLES

Table 1:

Output Summation Modes .............................................................................................................. 9

Table 2:

TDM Modes................................................................................................................................... 10

Table 3:

Latency.......................................................................................................................................... 13

Table 4:

Sync Modes .................................................................................................................................. 17

Table 5:

Mask Revision History................................................................................................................... 24

Table 6:

Absolute Maximum Ratings .......................................................................................................... 28

Table 7:

Recommended Operating Conditions ........................................................................................... 28

Table 8:

Thermal Data ................................................................................................................................ 28

Table 9:

DC Operating Conditions .............................................................................................................. 29

Table 10:

AC Characteristics (-40 To +85C Ambient, unless noted) ............................................................ 30

Table 11:

GSM Configuration........................................................................................................................ 33

Table 12:

DAMPS Configuration ................................................................................................................... 35

Table 13:

Diagnostic Test 1 Configuration .................................................................................................... 36

Table 14:

Diagnostic Test 2 Configuration .................................................................................................... 36

Table 15:

Diagnostic Test 3 Configuration .................................................................................................... 37

Table 16:

Diagnostic Test 4 Configuration .................................................................................................... 37

Table 17:

Output Test Configuration ............................................................................................................. 38

Table 18:

Test Output Sequence .................................................................................................................. 38