參數(shù)資料
型號(hào)： ADS1601EVM
廠商： Texas Instruments
文件頁(yè)數(shù)： 15/29頁(yè)
文件大?。?/td> 0K
描述： EVALUATION MODULE FOR ADS1601
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 16
采樣率（每秒）： 1.25M
數(shù)據(jù)接口： 串行
輸入范圍： ±3 V
在以下條件下的電源（標(biāo)準(zhǔn)）： 145mW @ 625kSPS，330mW @ 1.25MSPS
工作溫度： -40°C ~ 85°C
已用 IC / 零件： ADS1601
已供物品： 板
相關(guān)產(chǎn)品： 296-17631-6-ND - IC ADC 16BIT 1.25MSPS 48-TQFP
ADS1601IPFBTG4-ND - IC ADC 16BIT 1.25MSPS 48-TQFP
ADS1601IPFBRG4-ND - IC ADC 16BIT 1.25MSPS 48-TQFP
ADS1601IPFBR-ND - IC ADC 16BIT 1.25MSPS 48-TQFP
296-17631-1-ND - IC ADC 16BIT 1.25MSPS 48-TQFP
296-17631-2-ND - IC ADC 16BIT 1.25MSPS 48-TQFP
其它名稱： 296-17825
FSO
ADS1601
SCLK
DOUT
SYNC
FSR
TMS320
CLKR
DR
FSX
SBAS322D
– DECEMBER 2004 – REVISED OCTOBER 2011
LAYOUT ISSUES AND COMPONENT
The McBSP provides a host of functions including:
SELECTION
Full-duplex communication
Double-buffered data registers
The ADS1601 is a very high-speed, high-resolution
data
converter.
In
order
to
achieve
maximum
Independent framing and clocking for reception
performance,
the
user
must
give
very
careful
and transmission of data
consideration to both the layout of the printed circuit
The sequence begins with a one-time synchronization
board (PCB) in addition to the routing of the traces.
of the serial port by the microprocessor. The
Capacitors that are critical to achieve the best
ADS1601 recognizes the SYNC signal if it is high for
performance from the device should be placed as
at least one CLK period. Transfers are initiated by the
close to the pins of the device as possible. These
ADS1601 after the SYNC signal is de-asserted by the
include capacitors related to the analog inputs, the
microprocessor.
reference, and the power supplies.
The FSO signal from the ADS1601 indicates that
For critical capacitors, it is recommended that Class II
data is available to be read, and is connected to the
dielectrics such as Z5U be avoided. These dielectrics
frame sync receive (FSR) pin of the DSP. The clock
have
a
narrow
operating
temperature,
a
large
receiver (CLKR) is derived directly from the ADS1601
tolerance on the capacitance, and lose up to 20% of
serial
clock
output
to
ensure
continued
the rated capacitance over 10,000 hours. Rather,
synchronization of data with the clock.
select capacitors with a Class I dielectric. C0G (also
known as NP0), for example, has a tight tolerance
less than
±30ppm/°C and is very stable over time.
Should Class II capacitors be chosen because of the
size constraints, select an X7R or X5R dielectric to
minimize the variations of the capacitor
’s critical
characteristics.
The resistors used in the circuits to drive the input
and reference should be kept as low as possible to
prevent excess thermal noise from degrading the
system performance.
The digital outputs from the device should always be
buffered. This will have a number of benefits: it
Figure 51. ADS1601
—TMS320 Interface
reduces the loading of the internal digital buffers,
Connection
which decreases noise generated within the device,
and it also reduces device power consumption.
An evaluation module (EVM) is available from Texas
Instruments. The module consists of the ADS1601
APPLICATIONS INFORMATION
and supporting circuits, allowing users to quickly
assess the performance and characteristics of the
Interfacing the ADS1601 to the TMS320 DSP
ADS1601. The EVM easily connects to various
family.
microcontrollers and DSP systems. For more details,
Since the ADS1601 communicates with the host via a
or to download a copy of the ADS1601EVM User
serial interface, the most suitable method to connect
Guide, visit the Texas Instruments web site at
to any of the TMS320 DSPs is via the multi-channel
buffered serial port (McBSP). A typical connection to
the TMS320 DSP is shown in Figure 51.
22
Copyright
2004–2011, Texas Instruments Incorporated
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1601IPFBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 1.25MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1601IPFBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 1.25MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1601IPFBT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 1.25MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1601IPFBTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 1.25MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1602EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS1602EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
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