JAJSFA9E
November 2011 – April 2018
ADS5294
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
ブロック概略図
4
改訂履歴
5
概要(続き)
6
デバイス比較表
7
Pin Configuration and Functions
Pin Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics Dynamic Performance
8.6
Digital Characteristics
8.7
Timing Requirements
8.8
LVDS Timing at Different Sampling Frequencies — 2-Wire Interface, 7x-Serialization, Digital Filter Disabled
8.9
LVDS Timing at Different Sampling Frequencies — 1-Wire Interface, 14x-Serialization, Digital Filter Disabled
8.10
Serial Interface Timing Requirements
8.11
Reset Timing
8.12
LVDS Timing at Different Sampling Frequencies — 1-Wire Interface, 14x-Serialization, Decimation by 2 Filter Enabled
8.13
LVDS Timing at Different Sampling Frequencies — 1-Wire Interface, 14x-Serialization, Decimation by 4 Filter Enabled
8.14
LVDS Timing at Different Sampling Frequencies — 1-Wire Interface, 14x-Serialization, Decimation by 8 Filter Enabled
8.15
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Analog Input
9.3.2
Input Clock
9.3.3
Digital Highpass IIR Filter
9.3.4
Decimation Filter
9.3.5
Decimation Filter Equation
9.3.5.1
Pre-defined Coefficients
9.3.5.2
Custom Filter Coefficients
9.3.6
PLL Operation Versus LVDS Timing
9.3.6.1
Effect on Output Timings
9.4
Device Functional Modes
9.5
Programming
9.5.1
Serial Interface
9.5.1.1
Register Initialization
9.5.1.2
Serial Register Readout
9.5.1.3
Default States After Reset
9.6
Register Maps
9.6.1
Description Of Serial Registers
9.6.1.1
Power-Down Modes
Table 1.
Power-Down Mode Register
9.6.1.2
Low Frequency Noise Suppression Mode
Table 2.
Low Frequency Noise Suppression Mode Register
9.6.1.3
Analog Input Invert
Table 3.
Analog Input Invert Register
9.6.1.4
LVDS Test Patterns
Table 4.
LVDS Test Patterns
9.6.1.5
Bit-Byte-Word Wise Output
Table 5.
Bit-Byte-Word Wise Output
9.6.1.6
Digital Processing Blocks
9.6.1.7
Programmable Digital Gain
Table 6.
Programmable Digital Gain
9.6.1.8
Channel Averaging
Table 7.
Channel Averaging
9.6.1.9
Decimation Filter
Table 8.
Decimation Filter
9.6.1.10
Highpass Filter
Table 9.
Highpass Filter
9.6.1.11
Bit-Clock Programmability
Table 10.
Bit-Clock Programmability
9.6.1.12
Output Data Rate Control
Table 11.
Output Data Rate Control
9.6.1.13
Synchronization Pulse
Table 12.
Synchronization Pulse
9.6.1.14
External Reference Mode of Operation
9.6.1.15
Data Output Format Modes
Table 13.
Data Output Format Modes
9.6.1.16
Programmable Mapping Between Input Channels and Output Pins
Table 14.
Mapping Between Input Channels and Output Pins
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Large and Small Signal Input Bandwidth
10.2.2.2
Drive Circuit
10.2.2.3
Clock Selection
10.2.3
Application Curves
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
デバイスおよびドキュメントのサポート
13.1
デバイス・サポート
13.1.1
デバイスの項目表記
13.1.1.1
仕様の定義
13.2
ドキュメントのサポート
13.2.1
関連資料
13.3
コミュニティ・リソース
13.4
商標
13.5
静電気放電に関する注意事項
13.6
Glossary
14
メカニカル、パッケージ、および注文情報
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
PFP|80
MPQF049B
サーマルパッド・メカニカル・データ
PFP|80
PPTD013N
発注情報
jajsfa9e_oa
jajsfa9e_pm
8.15
Typical Characteristics
Typical values are at 25°C, AVDD = 1.8 V, LVDD = 1.8 V, 50% clock duty cycle, –1-dBFS differential analog input, 14 Bit/ 80 MSPS, ADC is configured in the internal reference mode, unless otherwise noted.
Figure 8.
FFT for 5-MHz Input Signal, Sample Rate = 80 MSPS
Figure 10.
FFT for 65-MHz Input Signal, Sample Rate = 80 MSPS
Figure 12.
FFT for 15-MHz Input Signal, Sample Rate = 40 MSPS
Figure 14.
Signal-To-Noise Ratio vs Input Signal Frequency
Figure 16.
SNR vs Digital Gain
Figure 18.
Performance vs Input Amplitude
Figure 20.
Performance vs Input Clock Duty CyclePerformance vs Input Clock Duty Cycle
Figure 22.
Signal-To-Noise Ratio vs Temperature
Figure 24.
Crosstalk vs Frequency
Figure 26.
Integral Non-Linearity
Figure 28.
Histogram of Output Code With Analog Inputs Shorted (RMS Noise = 96.4 uV) a note "RMS Noise = 96.4 uV" to
Figure 28
Figure 30.
Power-Supply Rejection Ratio vs Frequency
Figure 32.
Filter Response, Decimate by 4
Figure 34.
FFT for 5-MHz Input Signal, Sample Rate = 80 MSPS by Averaging 2 Channels
Figure 36.
FFT with HPF Enabled and Disabled, No Signal
Figure 38.
FFT (0 to 1 MHz) for 5-MHz Input Signal, Sample Rate = 80 MSPS with Low Frequency Noise Suppression Enabled
Figure 40.
Power Consumption on Analog Supply
Figure 42.
Supply Current on Analog Supply
Figure 9.
FFT for 15-MHz Input Signal, Sample Rate = 80 MSPS
Figure 11.
FFT for 5-MHz Input Signal, Sample Rate = 40 MSPS
Figure 13.
Two-Tone Intermodulation
Figure 15.
Spurious-Free Dynamic Range vs Input Signal Frequency
Figure 17.
SFDR vs Digital Gain
Figure 19.
Performance vs Clock Input Amplitudes
Figure 21.
Performance vs Input VCM
Figure 23.
Spurious-Free Dynamic Range vs Temperature
Figure 25.
Phase Noise for 5-MHz Input Signal, Sample Rate = 80 MSPS
Figure 27.
Differential Non-Linearity
Figure 29.
Common Mode Rejection Ratio vs Frequency
Figure 31.
Filter Response, Decimate by 2
Figure 33.
FFT for 5-MHz Input Signal, Sample Rate = 80 MSPS with Decimation Filter = 2
Figure 35.
Digital High-Pass Filter Response
Figure 37.
FFT (Full-Band) for 5-MHz Input Signal, Sample Rate = 80 MSPS with Low Frequency Noise Suppression Enabled
Figure 39.
FFT (39 MHz to 40 MHz) for 5-MHz Input Signal, Sample Rate = 80 MSPS with Low Frequency Noise Suppression Enabled
Figure 41.
Power Consumption on Digital Supply
Figure 43.
Supply Current on Digital Supply