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参数资料
| 型号： | MC44BS373CAFCEVK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 23/52页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR BS373CAFC 16PIN |
| 标准包装： | 1 |
| 主要目的： | 音频视频集成调制器 |
| 已用 IC / 零件： | MC44BS373CA |
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MC44BS373CA Data Sheet
Pin Descriptions
I2C bus 3.3-V compatible
Lower power consumption in normal and standby modes (–2 mA)
Can be powered down without holding down I2C lines
TB1 bit no longer available (limited compatibility with MC44355 devices no longer available)
New SREF bit to program sound reference frequency (31.25 and 62.5 kHz)
Four different I2C addresses selectable by single pin with external resistor (available only in QFN20
package)
Direct sound RF modulator (FM and AM sound modulators bypassed) for NICAM or stereo sound
applications (available only in QFN20 package)
Switch between two integrated VCOs controlled directly by frequency divider (at 700 MHz)
Lower RF second harmonic spurious but higher third harmonic spurious. In applications it is easier
to filter UHF third harmonics spurious than second harmonics, as these frequencies are always out
of the UHF band. Unfortunately, the second harmonic can fall back into the same UHF band (for
instance channel 21 second harmonic). For this reason, it is almost impossible to have a good
rejection of low UHF second harmonic with an external low-pass filter. This is why the design has
been optimized for maximum second harmonic rejection in spite of an increase in the third
harmonic level.
3 Pin Descriptions
This section describes the pins of the MC44BS373CA. First the 16-pin package will be considered, then the
20-pin package.
3.1 SO16 Package Pin Descriptions
The pins of the 16-pin package are listed in Table 1, along with a description of each.
Table 1. SO16 Package Pin Descriptions
Pin
Name
Description
Pin
Name
Description
1SCL
I2C clock
9
VIDEO
Video input
2SDA
I2C data
10
VCCA
Main analog supply voltage
3
LOP
Logical output port controlled by I2C bus
11
GND
Analog ground
4
XTAL
Crystal
12
TVOUT
TV output signal
5
GND
Ground
13 TVOVCC TV output stage supply voltage
6
PREEM
Pre-emphasis capacitor
14
PLLFLT
RF PLL loop filter
7
AUDIO
Audio input
15
VCCD
Digital supply voltage
8
SPLLFLT Sound PLL loop filter
16
GNDD
Digital ground
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC44BS373CAFCR2 | 功能描述:IC MODULATOR AUD/VID U/V 20-QFN RoHS:是 类别:集成电路 (IC) >> 专用 IC 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装 |
| MC44BS373CAR2 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:PLL-Tuned UHF and VHF Audio/Video High-Integration Modulator |
| MC44BS373CR2 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:PLL-Tuned UHF and VHF Audio/Video High-Integration Modulator |
| MC44BS374 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MC44BS374 |
| MC44BS374CA | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:SO16NB Package |
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