- 您现在的位置：买卖IC网 > PDF目录378446 > CH7006C-T (Electronic Theatre Controls, Inc.) Circular Connector; Body Material:Aluminum; Series:PT06; Number of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-18 PDF资料下载
参数资料
| 型号： | CH7006C-T |
| 厂商： | Electronic Theatre Controls, Inc. |
| 元件分类： | 圆形连接器 |
| 英文描述： | Circular Connector; Body Material:Aluminum; Series:PT06; Number of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-18 |
| 中文描述： | 数字电视编码器电脑功能 |
| 文件页数： | 14/49页 |
| 文件大小： | 338K |
| 代理商： | CH7006C-T |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页
CHRONTEL
CH7006C
14
201-0000-026 Rev 2.1, 8/2/99
Display Modes
(continued)
additional filtering for enhancing the readability of text. These modes are fully programmable via I
2
C under the
flicker filter register.
Internal Voltage Reference
An onchip bandgap circuit is used in the DAC to generate a reference voltage which, in conjunction with a reference
resistor at pin RSET, and register controlled divider, sets the output ranges of the DACs. The CH7006 bandgap
reference voltage is 1.235 volts nominal for NTSC or PAL-M, or 1.317 volts nominal for PAL or NTSC-J, which is
determined by IDF register bit 6 (DACG bit). The recommended value for the reference resistor ISET is 360 ohms
(though this may be adjusted in order to achieve a different output level). The gain setting for DAC output is 1/48
th
.
Therefore, for each DAC, the current output per LSB step is determined by the following equation:
I
LSB
= V(RSET)/RSET reference resistor * 1/GAIN
For DACG=0, this is: I
LSB
= 1.235/360 * 1/48 = 71.4
μ
A (nominal)
For DACG=1, this is: I
LSB
= 1.317/360 * 1/48 = 76.2
μ
A (nominal)
Power Management
The CH7006 supports five operating states including Normal [On], Power Down, Full Power Down, S-Video Off,
and Composite Off to provide optimal power consumption for the application involved. Using the programmable
power down modes accessed over the I
2
C port, the CH7006 may be placed in either Normal state, or any of the four
power managed states, as listed below (see
“
Power Management Register” under the
Register Descriptions
section
for programming information). To support power management, a TV sensing function (see “Connection Detect
Register” under the
Register Descriptions
section) is provided, which identifies whether a TV is connected to either
S-Video or composite. This sensing function can then be used to enter into the appropriate operating state (e.g., if
TV is sensed only on composite, the S-Video Off mode could be set by software).
Luminance and Chrominance Filter Options
The CH7006 contains a set of luminance filters to provide a controllable bandwidth output on both CVBS and
S-Video outputs. All values are completely programmable via the Video Bandwidth Register. For all graphs shown,
the horizontal axis is frequency in MHz, and the vertical axis is attenuation in dBs. The composite luminance and
chrominance video bandwidth output is shown in
Table 12
.
Table 11. Power Management
Operating State
Normal (On):
Power Down:
Functional Description
In the normal operating state, all functions and pins are active
In the power-down state, most pins and circuitry are disabled.The DS/BCO pin
will continue to provide either the VCO divided by K3, or 14.318 MHz out when
selected as an output, and the P-OUT pin will continue to output a clock
reference when in master clock mode.
Power is shut off to the unused DACs associated with S-Video outputs.
In Composite-off state, power is shut off to the unused DAC associated with
CVBS output.
In this power-down state, all but the I
2
C circuits are disabled. This places the
CH7006 in its lowest power consumption mode.
S-Video Off:
Composite Off:
Full Power Down:
相关PDF资料 |
PDF描述 |
|---|---|
| CH7006C-V | Circular Connector; Body Material:Aluminum; Series:PT06; No. of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-18 |
| CH7013A | Digital PC to TV Encoder |
| CH7013A-T | Digital PC to TV Encoder |
| CH7013A-V | Digital PC to TV Encoder |
| CHB1143 | CHB1143 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CH7006C-V | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital PC to TV Encoder Features |
| CH7007A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DIGITAL PC TO TV ENCODER WITH MACROVISION |
| CH7007A-T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DIGITAL PC TO TV ENCODER WITH MACROVISION |
| CH7007A-V | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DIGITAL PC TO TV ENCODER WITH MACROVISION |
| CH7008A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital PC to TV Encoder Features |
发布紧急采购，3分钟左右您将得到回复。