- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384324 > GC1012A-CQ (Texas Instruments, Inc.) DIGITAL TUNER CHIP PDF資料下載
參數(shù)資料
| 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)： | 20/30頁 |
| 文件大小： | 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頁當前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
GRAYCHIP,INC.
- 15 -
FEBRUARY 18, 1998
GC1012A DIGITAL TUNER
DATA SHEET REV 0.1
This document contains information which may be changed at any time without notice
3.5
OUTPUT MODE REGISTER
The output mode register controls the output formatting.
ADDRESS 8:
Output mode register
BIT
TYPE
NAME
DESCRIPTION
0
R/W
IQ_MUX
The IQ_MUX control is used in the complex mode to multiplex the I and Q output
words onto the
I[0:15]
output pins. Normally the I and Q halves are output on
separate ports. When this bit is high, the halves are multiplexed together so that
the I half is output first, followed by the Q half. The word strobe (
WS
) rate is doubled
in this mode. The
IFLAG
output signal is used in this mode to identify the I half of
each complex pair. The
Q[0:15]
output pins are forced low in this mode.
1
R/W
WS_POL
Changes the polarity of
WS
.
2
R/W
WS_MODE
Changes the mode of
WS
. Normally
WS
pulses high during the clock cycle before
an
I
or
Q
output transition. This bit changes
WS
so that it is a 50% duty cycle clock
with its rising edge
in the middle of each output period
3
R/W
-
Unused
4
R/W
R10
Round the output samples to the 10 bits MSBs of the output word.
5
R/W
R12
Round the output samples to the 12 bits MSBs of the output word.
6
R/W
R14
Round the output samples to the 14 bits MSBs of the output word.
7
R/W
R16
Round the output samples to the 16 bits MSBs of the output word.
One and only one of the rounding options should be selected. Unused LSBs are cleared.
The IQ_MUX and WS_MODE controls are illustrated in the timing diagrams shown in Figure 5. Note
that the polarity shown for
WS
can be changed using the WS_POL control.
Figure 5. Timing For Output Modes
DECIMATE BY 2 MODE: (DEC=2)
CK
IFLAG
DECIMATE BY 4 MODE: (DEC=3)
CK
I
or
Q
WS
(
= 0)
WS
(
= 1)
I
or
Q
WS
(
= 0 or 1)
DECIMATE BY 2 MODE WITH IQ_MUX, OR REAL MODES: (DEC=2, REAL=1 OR IQ_MUX=1)
CK
I
(
Q
is low,
WS
is high)
DECIMATE BY 4 MODE WITH IQ_MUX OR REAL MODES: (DEC=2, REAL=1 OR IQ_MUX=1)
CK
I
or
Q
WS
(
= 0 or 1)
IFLAG
相關(guān)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(guān)代理商/技術(shù)參數(shù) |
參數(shù)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(diào)諧器 Sgl channel WB DDC RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 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(fù)。