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參數(shù)資料
| 型號： | GC4116 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | MULTI-STANDARD QUAD DUC CHIP |
| 中文描述： | 多標準四數(shù)字上芯片 |
| 文件頁數(shù)： | 45/57頁 |
| 文件大?。?/td> | 401K |
| 代理商： | GC4116 |
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GC4116 MULTI-STANDARD QUAD DUC CHIP
DATA SHEET REV 1.0
19992001
GRAYCHIP,INC.
- 40 -
APRIL 27, 2001
This document contains preliminary information which may be changed at any time without notice
RESAMPLER CONTROL PAGE 8 (continue)
ADDRESS 23:
Ratio Map Register
Suggested default = 0x00
The default ratio maps select ratio 0 for all four channels. The resampler in the GC4116 must use the same ratio for all
resampler channels, which means that the valid values for the ratio map are 0x00, 0x55, 0xAA and 0xFF to select ratio 0, 1, 2 or 3.
The ratio maps can also be used to synchronously switch between resampling ratios. This allows the chip’s resampler to be
used in timing loops where the ratio must toggle between several values which have been programmed into the chip.
5.9
RESAMPLER RATIO PAGE (PAGE 9)
This page stores four resampler ratios to be used by the resampler channels. Each ratio is the 32 bit ratio of the input sample
rate to the output sample rate with an implicit decimal point six bits down from the top. The total range for the ratio is then 0 to
63. The hardware limits the decimation to be less than 32 (hence the MSB of the 32 bit word should always be zero).
RATIO = 2
26
(Input Sample Rate)/(Output Sample Rate)
The ratio map register selects which ratio is used by the resampler.
BIT
TYPE
NAME
DESCRIPTION
0-1 LSB
R/W
RATIO_MAP_0
The ratio map for resampler channel 0. This tells the hardware which resampler
ratio should be use for resampler channel 0.
2-3
R/W
RATIO_MAP_1
The ratio map for resampler channel 1.
4-5
R/W
RATIO_MAP_2
The ratio map for resampler channel 2.
6-7 MSB
R/W
RATIO_MAP_3
The ratio map for resampler channel 3.
Table 9: Resampler Ratio Page
ADDRESS
NAME
ADDRESS
NAME
16
RATIO_0 (LSBs)
24
RATIO_2 (LSBs)
17
RATIO_0
25
RATIO_2
18
RATIO_0
26
RATIO_2
19
RATIO_0 (MSBs)
27
RATIO_2 (MSBs)
20
RATIO_1 (LSBs)
28
RATIO_3 (LSBs)
21
RATIO_1
29
RATIO_3
22
RATIO_1
30
RATIO_3
23
RATIO_1 (MSBs)
31
RATIO_3 (MSBs)
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| GC4116-PB | 功能描述:上下轉換器 4 Ch Narrowband DDC Monitor RoHS:否 制造商:Texas Instruments 產品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-128 |
| GC4116-PBZ | 功能描述:上下轉換器 4 Ch Narrowband DDC Monitor RoHS:否 制造商:Texas Instruments 產品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-128 |
| GC-41259-02 | 制造商:Microsemi Corporation 功能描述:DIODE - Bulk |
| GC4-12F1 | 制造商:GC Electronics 功能描述:Lead Acid Rectangular 12V 4Ah Rechargeable |
| GC4130A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:GC4130A Low Distortion AGC Amplifier |
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