ADF4112: Single, Integer-N 3.0 GHz PPL With Programmable Prescaler And Charge Pump
The ADF4112 family of frequency synthesizers can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. They consist of low-noise digital PFD (Phase Frequency Detector), a precision charge pump, a programmable reference divider, programmable A and B counters and a dual modulus prescaler (P/P+1). The A (6-bit) and B (13-bit) counters, in conjunction with the dual modulus prescaler (P/P+1), implement an N divider (N = BP+A). In addition, the 14-bit reference counter (R Counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (Phase-Locked Loop) can be implemented if the synthesizer is used with an external loop filter and VCO (Voltage Controlled Oscillator).
Control of all the on-chip registers is via a simple 3-wire interface. The devices operate with a power supply ranging from 2.7 V to 5.5 V and can be powered down when not in use.
ADF4112 特点
- ADF4110: 550 MHz
- ADF4111: 1.2 GHz
- ADF4112: 3.0 GHz
- ADF4113: 4.0 GHz
- +2.7 V to +5.5 V Power Supply
- Separate Vp Allows Extended Tuning Voltage in 3V Systems
- Programmable Charge Pump Currents
- Programmable Dual Modulus Prescaler 8/9, 16/17, 32/33, 64/65
- Programmable Anti-Backlash Pulse Width
- 3-Wire Serial Interface
- Digital Lock Detect
- Power Down Mode
ADF4112 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADF4112BCP | 量产 | 20 ld LFCSP (4x4mm) | 20 | 工业 |
| ADF4112BCP-REEL | 量产 | 20 ld LFCSP (4x4mm) | 20 | 工业 |
| ADF4112BCP-REEL7 | 量产 | 20 ld LFCSP (4x4mm) | 20 | 工业 |
| ADF4112BCPZ | 量产 | 20 ld LFCSP (4x4mm) | 20 | 工业 |
| ADF4112BCPZ-RL | 量产 | 20 ld LFCSP (4x4mm) | 20 | 工业 |
| ADF4112BCPZ-RL7 | 量产 | 20 ld LFCSP (4x4mm) | 20 | 工业 |
| ADF4112BRU | 量产 | 16 ld TSSOP | 16 | 工业 |
| ADF4112BRU-REEL | 量产 | 16 ld TSSOP | 16 | 工业 |
| ADF4112BRU-REEL7 | 量产 | 16 ld TSSOP | 16 | 工业 |
| ADF4112BRUZ | 量产 | 16 ld TSSOP | 16 | 工业 |
| ADF4112BRUZ-REEL | 量产 | 16 ld TSSOP | 16 | 工业 |
| ADF4112BRUZ-REEL7 | 量产 | 16 ld TSSOP | 16 | 工业 |
| EVAL-ADF4112EBZ1 | 量产 | 评估板 | - | 待定 |
ADF4112 应用技术支持与电子电路设计开发资源下载
- ADF4112 数据手册DataSheet 下载 . PDF
- ADI 模拟器件公司比较器产品选型指南 . PDF
- Analog Devices, Inc. 美国模拟器件公司产品订购手册 .PDF
- 时钟和定时IC产品介绍 . PDF