CD74HCT7046A
- Center Frequency of 18MHz (Typ) at VCC = 5V, Minimum Center Frequency of 12MHz at VCC = 4.5V
- Choice of Two Phase Comparators
- Exclusive-OR
- Edge-Triggered JK Flip-Flop
- Excellent VCO Frequency Linearity
- VCO-Inhibit Control for ON/OFF Keying and for Low Standby Power Consumption
- Minimal Frequency Drift
- Zero Voltage Offset Due to Op-Amp Buffer
- Operating Power-Supply Voltage Range
- VCO Section...3V to 6V
- Digital Section...2V to 6V
- Fanout (Over Temperature Range)
- Standard Outputs...10 LSTTL Loads
- Bus Driver Outputs...15 LSTTL Loads
- Wide Operating Temperature Range... –55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
- Applications
- FM Modulation and Demodulation
- Frequency Synthesis and Multiplication
- Frequency Discrimination
- Tone Decoding
- Data Synchronization and Conditioning
- Voltage-to-Frequency Conversion
- Motor-Speed Control
- Related Literature
- AN8823, CMOS Phase-Locked-Loop Application Using the CD74HC/HCT7046A and CD74HC/HCT7046A
The CD74HC7046A and CD74HCT7046A high-speed silicon-gate CMOS devices, specified in compliance with JEDEC Standard No. 7A, are phase-locked-loop (PLL) circuits that contain a linear voltage-controlled oscillator (VCO), two-phase comparators (PC1, PC2), and a lock detector. A signal input and a comparator input are common to each comparator. The lock detector gives a HIGH level at pin 1 (LD) when the PLL is locked. The lock detector capacitor must be connected between pin 15 (CLD) and pin 8 (Gnd). For a frequency range of 100kHz to 10MHz, the lock detector capacitor should be 1000pF to 10pF, respectively.
The signal input can be directly coupled to large voltage signals, or indirectly coupled (with a series capacitor) to small voltage signals. A self-bias input circuit keeps small voltage signals within the linear region of the input amplifiers. With a passive low-pass filter, the 7046A forms a second-order loop PLL. The excellent VCO linearity is achieved by the use of linear op-amp techniques.
技术文档
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | CD74HC7046A, CD74HCT7046A 数据表 (Rev. C) | 2003年 10月 16日 | |||
| 应用手册 | Implications of Slow or Floating CMOS Inputs (Rev. E) | 2021年 7月 26日 | ||||
| 选择指南 | Logic Guide (Rev. AB) | 2017年 6月 12日 | ||||
| 应用手册 | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 2015年 12月 2日 | ||||
| 选择指南 | 逻辑器件指南 2014 (Rev. AA) | 最新英语版本 (Rev.AB) | 2014年 11月 17日 | |||
| 用户指南 | LOGIC Pocket Data Book (Rev. B) | 2007年 1月 16日 | ||||
| 应用手册 | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 2004年 7月 8日 | ||||
| 用户指南 | Signal Switch Data Book (Rev. A) | 2003年 11月 14日 | ||||
| 应用手册 | CMOS Phase-Locked-Loop Applications (Rev. B) | 2002年 9月 19日 | ||||
| 应用手册 | TI IBIS File Creation, Validation, and Distribution Processes | 2002年 8月 29日 | ||||
| 应用手册 | CMOS Power Consumption and CPD Calculation (Rev. B) | 1997年 6月 1日 | ||||
| 应用手册 | 使用逻辑器件进行设计 (Rev. C) | 1997年 6月 1日 | ||||
| 应用手册 | SN54/74HCT CMOS Logic Family Applications and Restrictions | 1996年 5月 1日 | ||||
| 应用手册 | Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc | 1996年 4月 1日 |
设计和开发
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14-24-LOGIC-EVM — 采用 14 引脚至 24 引脚 D、DB、DGV、DW、DYY、NS 和 PW 封装的逻辑米6体育平台手机版_好二三四通用评估模块
14-24-LOGIC-EVM 评估模块 (EVM) 旨在支持采用 14 引脚至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| PDIP (N) | 16 | Ultra Librarian |
| SOIC (D) | 16 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点