GC1012B Datasheet, PDF (3/30 Pages) Texas Instruments – 3.3V DIGITAL TUNER CHIP

GC1012B 3.3V DIGITAL TUNER CHIP
SLWS138B
TABLE OF CONTENTS
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
FUNCTIONAL DESCRIPTION .................................................................................................... 1
KEY FEATURES ....................................................................................................................................1
BLOCK DIAGRAM .................................................................................................................................2
CONTROL INTERFACE ........................................................................................................................2
DIGITAL OSCILLATOR..........................................................................................................................3
MIXER ....................................................................................................................................................4
PROGRAMMABLE LOW PASS FILTER................................................................................................4
GAIN.......................................................................................................................................................5
OUTPUT FORMATTING ........................................................................................................................6
POWER DOWN AND KEEPALIVE MODES ..........................................................................................6
THE ONE SHOT PULSE GENERATOR ................................................................................................6
DIAGNOSTICS.......................................................................................................................................7
2.0
PIN DESCRIPTIONS ................................................................................................................... 8
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
CONTROL REGISTERS............................................................................................................10
FREQUENCY WORD REGISTERS.....................................................................................................11
SYNC MODE REGISTER ....................................................................................................................12
FILTER MODE REGISTER ..................................................................................................................13
GAIN CONTROL REGISTERS ............................................................................................................14
OUTPUT MODE REGISTER................................................................................................................15
OUTPUT STATUS REGISTER ............................................................................................................16
ONE SHOT ADDRESS ........................................................................................................................17
CHECKSUM REGISTER .....................................................................................................................17
I AND Q OUTPUT REGISTERS...........................................................................................................17
4.0
4.1
4.2
4.3
4.4
4.5
SPECIFICATIONS .....................................................................................................................18
ABSOLUTE MAXIMUM RATINGS .......................................................................................................18
RECOMMENDED OPERATING CONDITIONS...................................................................................18
THERMAL CHARACTERISTICS .........................................................................................................18
DC CHARACTERISTICS .....................................................................................................................19
AC CHARACTERISTICS .....................................................................................................................20
5.0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
APPLICATION NOTES..............................................................................................................21
POWER AND GROUND CONNECTIONS...........................................................................................21
STATIC SENSITIVE DEVICE ..............................................................................................................21
100 MHZ OPERATION ........................................................................................................................21
REDUCED VOLTAGE OPERATION....................................................................................................21
SYNCHRONIZING MULTIPLE GC1012B CHIPS ................................................................................22
PROCESSING COMPLEX DATA ........................................................................................................22
EXAMPLE RECEIVER ARCHITECTURE ............................................................................................23
LATENCY THROUGH THE GC1012B.................................................................................................24
Texas Instruments Incorporated
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