EVAL-ADF4208EB1: Dual, Integer-N 1.1 GHz/2.0 GHz PLL

The ADF4206/ADF4208 is a dual frequency synthesizer which can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. They consist of a 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 (11- 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 synthesizers are used with an external loop filter and VCO's (Voltage Controlled Oscillators).

Note: The ADF4207 mentioned in the data sheet is an obsolete part.

EVAL-ADF4208EB1 特点

• ADF4206: 550 MHz/550 MHz
• ADF4208: 2.0 GHz/1.1 GHz
• 2.7 V to 5.5 V Power Supply
• Selectable Charge Pump Supply (VP) Allows Extended Tuning Voltage in 3 V Systems
• Selectable Charge Pump Currents
• On-Chip Oscillator Circuit
• Selectable Dual Modulus Prescaler
  RF2: 32/33 or 64/65
  RF1: 32/33 or 64/65
• 3-Wire Serial Interface
• Power-Down Mode

EVAL-ADF4208EB1 功能框图

ADF4208 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADF4208BRU	量产	20 ld TSSOP	20	工业
ADF4208BRU-REEL	量产	20 ld TSSOP	20	工业
ADF4208BRU-REEL7	量产	20 ld TSSOP	20	工业
ADF4208BRUZ	量产	20 ld TSSOP	20	工业
ADF4208BRUZ-R7	量产	20 ld TSSOP	20	工业
ADF4208BRUZ-RL	量产	20 ld TSSOP	20	工业
EVAL-ADF4208EB1	量产	评估板	-	待定

EVAL-ADF4208EB1 应用技术支持与电子电路设计开发资源下载

1. ADF4208 数据手册DataSheet 下载 . PDF
2. ADI 模拟器件公司比较器产品选型指南 . PDF
3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .PDF
4. 时钟和定时IC产品介绍 . PDF