- 您現在的位置：買賣IC網 > PDF目錄384324 > GC1012A-CQ (Texas Instruments, Inc.) DIGITAL TUNER CHIP PDF資料下載
參數資料
| 型號： | GC1012A-CQ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DIGITAL TUNER CHIP |
| 中文描述： | 數字調諧器芯片 |
| 文件頁數： | 27/30頁 |
| 文件大?。?/td> | 186K |
| 代理商： | GC1012A-CQ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁當前第27頁第28頁第29頁第30頁
GRAYCHIP,INC.
- 22 -
FEBRUARY 18, 1998
GC1012A DIGITAL TUNER
DATA SHEET REV 0.1
This document contains information which may be changed at any time without notice
5.5
SYNCHRONIZING MULTIPLE GC1012A CHIPS
A system containing a bank of GC1012A chips will need to be synchronized so that the output
frames from each chip are aligned, and, if desired, so that their frequency accumulators are running
synchronously. The GC1000 Input Switch chip has built in sync counters which are designed specifically for
this purpose. If the GC1000 chip is not used, then the one-shot strobe (see Section 3.7) can be used. The
bank of chips should be interconnected so that the
OS
pin of one GC1012A chip is tied to the
SS
input of
all of the chips. The one-shot strobe mode can then be used to simultaneously synchronize all of the chips.
The
OS
pin of a second GC1012A chip should be tied to the
AS
input of all of the chips. The one-shot mode
of the second chip can be used to synchronize the frequency accumulators whenever the tuning frequency
has been changed.
5.6
PROCESSING COMPLEX DATA
Two GC1012A chips can be used to process complex input data by using one chip to process the
I-input data and the other to process the Q-input data. If the two chips are synchronized as discussed above,
then the complex output stream can be reconstructed by adding and subtracting the I and Q outputs of the
two chips. A programmable gate array chip such as from XILINX would be ideal for this post-processing.
The configuration for processing complex data is illustrated in Figure 6.
Figure 6. Processing Complex Input Data
X
SS
AS
OS
I
Q
GC1012A
X
SS
AS
OS
I
Q
GC1012A
I
OUT
Q
OUT
I
IN
Q
IN
PROGRAMMABLE
GATE
ARRAY
相關PDF資料 |
PDF描述 |
|---|---|
| GC5051 | PARAGON⑩ DIGITAL Four Channel DSP System with FRONTWAVE |
| GC5057 | PARAGON⑩ DIGITAL Four Channel DSP System with FRONTWAVE |
| GCDA05 | Time-Delay Relay; Contacts:DPDT; Time Range:1.2 to 120s; Mounting Type:Plug-In; Timing Function:Delay-On-Dropout; Contact Carrying Power:2VA |
| GCDA15C-1-GS08 | Low Capacitance Bidirectional ESD Protection Diodes |
| GD65232DBR | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關代理商/技術參數 |
參數描述 |
|---|---|
| GC1012A-PQ | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DIGITAL TUNER CHIP |
| GC1012B | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.3V DIGITAL TUNER CHIP |
| GC1012B_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.3V DIGITAL TUNER CHIP |
| GC1012B-PQ | 功能描述:調諧器 Sgl channel WB DDC RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數: 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| GC1012B-PQA | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.3V DIGITAL TUNER CHIP |
發(fā)布緊急采購，3分鐘左右您將得到回復。