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参数资料
| 型号： | AD6654CBCZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 64/88页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT W/4CH RSP 256CSPBGA |
| 标准包装： | 1 |
| 位数： | 14 |
| 采样率（每秒）： | 92.16M |
| 数据接口： | 串行，并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 2.5W |
| 电压电源： | 模拟和数字 |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 256-BGA，CSPBGA |
| 供应商设备封装： | 256-CSPBGA（17x17） |
| 包装： | 托盘 |
| 输入数目和类型： | 1 个差分，单极 |
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AD6654
Rev. 0 | Page 67 of 88
PROGRAMMING INDIRECT ADDRESSED REGISTERS
USING SERIAL PORT
This section gives examples for programming CRCF coefficient
RAM (with an indirect addressing scheme) using the serial port
(either SPI or SPORT modes). Though the following specific
examples are for CRCF coefficient RAM programming, they can
be extended to other indirect addressed registers like DRCF
coefficient RAM. There are four possible programming scenarios,
and examples are given for all scenarios using two commands:
SerialWrite(data) and SerialRead. These commands signify an 8-
bit write to, or an 8-bit read from, the serial port (SPI or SPORT).
SerialWrite(8-bit number):
is an 8-bit write to SPI or SPORT. In
SPI mode, the SCLK is toggled eight times while SCS is pulled low.
In SPORT mode, SCS is pulled low, SRFS is held high for one
SCLK cycle, and eight bits of data are shifted into the SDI pin
following the SRFS pulse. Though the 8-bit number argument
shown in the following code is always shown MSBFIRST, it is
written with MSB shifting into the device first in MSBFIRST
mode, and it is written with LSB shifting into the device first in
LSBFIRST mode.
SerialRead():
is an 8-bit read from the SDO pin in SPI or SPORT
modes. In SPI mode, the SCLK toggles eight times while SCS is
low. In SPORT mode, SCS is pulled low, STFS is held high for one
SCLK cycle, and then the eight bits of data that shifted out on
SDO following the STFS pulse are read. The data shifted out
should be interpreted based on the polarity of the MSBFIRST pin.
MSBFIRST Mode Using Single Byte Block Transfers
SerialWrite(0x98); //CRCF Start Address
SerialWrite(0x01);
SerialWrite(0x00);
SerialWrite(0x99); //CRCF Final Address
SerialWrite(0x01);
SerialWrite(N-1);
//N is the number of coefficients
for (i=0 ; i < N; i++) {
//writing registers
SerialWrite(0x9E);
//MSB written first
SerialWrite(0x01);
//data bits[23:16]
SerialWrite(coeff[i] >> 16 & 0xFF);
SerialWrite(0x9D);
SerialWrite(0x01);
//data bits[15:8]
SerialWrite(coeff[i] >> 8 & 0xFF);
SerialWrite(0x9C);
//LSB written last
SerialWrite(0x01);
//data bits[7:0]
SerialWrite(coeff[i] & 0xFF);
}
SerialWrite(0x98); //CRCF Start Address
SerialWrite(0x01);
SerialWrite(0x00);
SerialWrite(0x99); //CRCF Final Address
SerialWrite(0x01);
SerialWrite(N-1);
//N is the number of coefficients
for (i=0 ; i < N; i++) {
//reading registers
SerialWrite(0x9E);
//MSB readback first
SerialWrite(0x81);
//data bits[23:16]
Coeff[i] = SerialRead() << 16;
SerialWrite(0x9D);
SerialWrite(0x81);
//data bits[15:8]
Coeff[i] |= SerialRead() << 8;
SerialWrite(0x9C);
//LSB readback last
SerialWrite(0x81);
//data bits[7:0]
Coeff[i] |= SerialRead();
}
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD6654XBCZ | 制造商:Analog Devices 功能描述:14-BIT, 92.16 MSPS, 4 & 6-CHANNEL WIDEBAND IF TO BASE BAND R - Bulk |
| AD6655 | 制造商:AD 制造商全称:Analog Devices 功能描述:IF Diversity Receiver |
| AD6655-125EBZ | 功能描述:BOARD EVAL W/AD6655 & SOFTWARE RoHS:是 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:- 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796 |
| AD6655-125EBZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:IF Diversity Receiver |
| AD6655-150EBZ | 功能描述:BOARD EVAL FOR 150MSPS AD6655 RoHS:是 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:- 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796 |
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