收藏本站
MAX2769B
Universal GPS Receiver
DSP Interface
GPS data is output from the ADC as the four logic signals
(bit 0 , bit 1 , bit 2 , and bit 3 ) that represent sign/magnitude,
unsigned binary, or two’s complement binary data in
the I (bit 0 and bit 1 ) and Q (bit 2 and bit 3 ) channels. The
resolution of the ADC can be set up to 3 bits per channel.
For example, the 2-bit I and Q data in sign/magnitude
format is mapped as follows: bit 0 = I SIGN , bit 1 = I MAG ,
bit 2 = Q SIGN , and bit 3 = Q MAG . The data can be serial-
ized in 16-bit segments of bit 0 , followed by bit 1 , bit 2 , and
bit 3 . The number of bits to be serialized is controlled by
the bits STRMBITS in the Configuration 3 register. This
selects between bit 0 ; bit 0 and bit 1 ; bit 0 and bit 2 ; and
bit 0 , bit 1 , bit 2 , and bit 3 cases. If only bit 0 is serialized, the
data stream consists of bit 0 data only. If a serialization of
bit 0 and bit 1 (or bit 2 ) is selected, the stream data pattern
consists of 16 bits of bit 0 data followed by 16 bits of bit 1
(or bit 2 ) data, which, in turn, is followed by 16 bits of bit 0
data, and so on. In this case, the serial clock must be at
least twice as fast as the ADC clock. If a 4-bit serialization
of bit 0 , bit 1 , bit 2 , and bit 3 is chosen, the serial clock must
be at least four times faster than the ADC clock.
The ADC data is loaded in parallel into four holding
registers that correspond to four ADC outputs. Holding
registers are 16 bits long and are clocked by the ADC
clock. At the end of the 16-bit ADC cycle, the data is
transferred into four shift registers and shifted serially to
the output during the next 16-bit ADC cycle. Shift regis-
ters are clocked by a serial clock that must be chosen
fast enough so that all data is shifted out before the next
set of data is loaded from the ADC. An all-zero pattern
follows the data after all valid ADC data are streamed
to the output. A DATASYNC signal is used to signal the
beginning of each valid 16-bit data slice. In addition,
there is a TIME_SYNC signal that is output every 128 to
16,384 cycles of the ADC clock.
STRM_EN
ADC
I
Q
DATA_OUT
BIT 0
CLK_SER
BIT 1
BIT 2
DATA_SYNC
BIT 3
TIME_SYNC
STRM_EN
STRM_START
STRM_EN
OUTPUT
DRIVER
PIN 21
PIN 20
PIN 17
PIN 18
STRM_STOP
CONTROL
SIGNALS
FROM 3-WIRE
INTERFACE
STRM_COUNT<2:0>
DIEID<1:0>
STRM_BITS<1:0>
FRM_COUNT<27:0>
STAMP_EN
DAT_SYNCEN
TIME_SYNCEN
STRM_RST
CLK_ADC
CLK_SER
ADCCLK_SEL
L_CNT<11:0>
M_CNT<11:0>
REF/XTAL
PIN 15
THROUGH
/2
/4
CLK_IN
CLK_OUT
x2
REFDIV<1:0>
SERCLK_SEL
FRCLK_SEL
Figure 3. DSP Interface Top-Level Connectivity and Control Signals
Maxim Integrated
16
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MAX2769EVKIT+ KIT EVAL FOR MAX2769
MAX2821ETM+T IC TXRX 802.11B 2.4GHZ 48-TQFN
MAX2829EVKIT EVAL KIT MAX2828, MAX2829
MAX2830EVKIT+ KIT EVAL FOR MAX2830
MAX2831EVKIT+ KIT EVAL FOR MAX2831
MAX2837EVKIT+ KIT EVAL FOR MAX2837
MAX2838EVKIT+ KIT EVAL FOR MAX2838
MAX2839ASEVKIT+ KIT EVAL FOR MAX2839A WLP
相关代理商/技术参数
MAX2769BEVKIT# 功能描述:射频接收器 Eval Kit for MAX2769B Universal GNSS receiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
MAX2769E/W 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
MAX2769E/W-GB6 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
MAX2769E/W-T 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
MAX2769E/W-TGB6 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
MAX2769ETI+ 功能描述:射频接收器 Universal GPS Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
MAX2769ETI+T 功能描述:射频接收器 Universal GPS Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
MAX2769EVKIT+ 功能描述:GPS开发工具 MAX2769 Eval Kit RoHS:否 制造商:STMicroelectronics 产品:Evaluation Boards 工具用于评估:IT600, STM32F20x 频率:1.575 GHz 工作电源电压:1.8 V 接口类型:Wireless