- 制造厂商：TI
- 产品类别：数据转换器
- 技术类目：集成型/特殊功能数据转换器 - CCD/CIS 成像 AFE
- 功能描述：具有 LVDS/CMOS 输出和集成 CCD/CIS 传感器定时发送器的 3 通道 16 位 81MSPS AFE
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The LM98725 is a fully integrated, high performance 16-Bit, 81 MSPS signal processing solution for digital color copiers, scanners, and other image processing applications. The LM98725 achieves high-speed signal throughput with an innovative architecture utilizing Correlated Double Sampling (CDS), typically employed with CCD arrays, or Sample and Hold (S/H) inputs (for higher speed CCD or CMOS image sensors). The signal paths utilize 8 bit Programmable Gain Amplifiers (PGA), a ±9-Bit offset correction DAC, and independently controlled Digital Black Level correction loops for each input. The independently programmed PGA and offset DAC allow unique values of gain and offset for each of the three analog inputs. The signals are then routed to a 81 MHz high performance analog-to-digital converter (ADC). The fully differential processing channel shows exceptional noise immunity with a very low noise floor of –74 dB. The 16-bit ADC has excellent dynamic performance making the LM98725 transparent in the image reproduction chain.
A very flexible integrated Spread Spectrum Clock Generation (SSCG) modulator is included to assist with EM compliance and reduce system costs.
- LVDS/CMOS Outputs
- LVDS/CMOS/Crystal Clock Source with PLL Multiplication
- Integrated Flexible Spread Spectrum Clock Generation
- CDS or S/H Processing for CCD or CIS Sensors
- Independent Gain/Offset Correction for Each Channel
- Automatic per-Channel Gain and Offset Calibration
- Programmable Input Clamp Voltage
- Flexible CCD/CIS Sensor Timing Generator
- Resolution (Bits)
- 16
- Number of channels (#)
- 3
- Samples/sec (MSPS)
- 81
- Supply voltage (Max)
- 3.3
- Operating temperature range (C)
- 0 to 70
- Output data format
- CMOS, LVDS
LM98725的完整型号有：LM98725CCMT/NOPB、LM98725CCMTX/NOPB，以下是这些产品的关键参数及官网采购报价：
LM98725CCMT/NOPB，工作温度：0 to 70，封装：TSSOP (DGG)-56，包装数量MPQ：34个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网LM98725CCMT/NOPB的批量USD价格：11.04（1000+）
LM98725CCMTX/NOPB，工作温度：0 to 70，封装：TSSOP (DGG)-56，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网LM98725CCMTX/NOPB的批量USD价格：9.2（1000+）
LM98725 IBIS Model
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