ZHCSNC4B February 2021 – September 2022 ADC3661 , ADC3662 , ADC3663
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Pin Configuration and Functions
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6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Electrical Characteristics - Power Consumption
- 6.6 Electrical Characteristics - DC Specifications
- 6.7 Electrical Characteristics - AC Specifications
- 6.8 Timing Requirements
- 6.9 Typical Characteristics - ADC3661
- 6.10 Typical Characteristics - ADC3662
- 6.11 Typical Characteristics - ADC3663
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application Information Disclaimer
- 10Device and Documentation Support
- 11Mechanical, Packaging, and Orderable Information
8.3.2.1 Single Ended vs Differential Clock Input
The ADC366x can be operated using a differential or a single ended clock input where the single ended clock consumes less power consumption. However clock amplitude impacts the ADC aperture jitter and consequently the SNR. For maximum SNR performance, a large clock signal with fast slew rates needs to be provided.
- Differential Clock Input: The clock input can be AC coupled externally. The ADC366x provides internal bias.
- Single Ended Clock Input: This mode needs to be configured using SPI register (0x0E, D2 and D0) or with the REFBUF pin. In this mode there is no internal clock biasing and thus the clock input needs to be DC coupled around a 0.9V center. The unused input needs to be AC coupled to ground.
Figure 8-16 External and internal connection using differential (left) and single ended (right) clock input