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| 型號(hào)： | 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(yè)數(shù)： | 16/30頁(yè) |
| 文件大?。?/td> | 186K |
| 代理商： | GC1012A-CQ |
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GRAYCHIP,INC.
- 11 -
FEBRUARY 18, 1998
GC1012A DIGITAL TUNER
DATA SHEET REV 0.1
This document contains information which may be changed at any time without notice
3.1
FREQUENCY WORD REGISTERS
Registers 0, 1, 2, and 3 contain the 28 bit frequency tuning word. Bit 0 is the LSB, bit 27 is the MSB.
ADDRESS 0:
FREQUENCY BYTE 0
BIT
TYPE
NAME
DESCRIPTION
0-7
R/W
FREQ
[0:7]
Byte 0 (least significant) of frequency word
ADDRESS 1:
FREQUENCY BYTE 1
BIT
TYPE
NAME
DESCRIPTION
0-7
R/W
FREQ
[8:15]
Byte 1 of frequency word
ADDRESS 2:
FREQUENCY BYTE 2
BIT
TYPE
NAME
DESCRIPTION
0-7
R/W
FREQ
[16:23]
Byte 2 of frequency word
ADDRESS 3:
FREQUENCY BYTE 3
BIT
TYPE
NAME
DESCRIPTION
0-3
R/W
FREQ
[24:27]
4 most significant bits of the frequency word
4-7
R/W
-
unused
If the desired tuning frequency is
F
, then the frequency word should be set to:
FREQ
= 2
28
F
/(clock rate)
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