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| 型號： | GC1012A-CQ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DIGITAL TUNER CHIP |
| 中文描述： | 數(shù)字調(diào)諧器芯片 |
| 文件頁數(shù)： | 22/30頁 |
| 文件大?。?/td> | 186K |
| 代理商： | GC1012A-CQ |
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GRAYCHIP,INC.
- 17 -
FEBRUARY 18, 1998
GC1012A DIGITAL TUNER
DATA SHEET REV 0.1
This document contains information which may be changed at any time without notice
3.7
ONE SHOT ADDRESS
The one shot pulse is generated on the
OS
pin by writing to address 10. This is a write-only address
and the data written to it is irrelevant.
ADDRESS 10:
ONE SHOT
3.8
CHECKSUM REGISTER
This read-only register stores the checksums generated in the diagnostic mode.
ADDRESS 11:
CHECKSUM
BIT
TYPE
NAME
DESCRIPTION
0-7
R
CHECK[0:7]
The 8 bit checksum. The checksum is generated as a non-linear feedback
accumulation of the
BS
,
FS
,
I
, and
Q
output bits. The current checksum is stored
in this register and the checksum generator is cleared whenever the internal sync
goes low (see SS_MUX in Section 3.2 for the modes of the internal sync).
3.9
I AND Q OUTPUT REGISTERS
These registers are used to capture output samples.
ADDRESS 12:
I-Output Byte 0
BIT
TYPE
NAME
DESCRIPTION
0-7
R
I[0:7]
Least significant 8 bits of the
I
output.
ADDRESS 13:
I-Output Byte 1
BIT
TYPE
NAME
DESCRIPTION
0-7
R
I[8:15]
Most significant 8 bits of the
I
output.
ADDRESS 14:
Q-Output Byte 0
BIT
TYPE
NAME
DESCRIPTION
0-7
R
Q[0:7]
Least significant 8 bits of the
Q
output.
ADDRESS 15:
Q-Output Byte 0
BIT
TYPE
NAME
DESCRIPTION
0-7
R
QI[8:15]
Most significant 8 bits of the
Q
output.
The user reads the
I
and
Q
outputs through these read-only registers. The captured samples can
be used for gain control, analysis, display, or diagnostics.
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| GC1012A-PQ | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DIGITAL TUNER CHIP |
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