ADF4212L:  Dual Power PLL Frequency Synthesizer

The ADF4212L is a dual frequency synthesizer that can be used to implement local oscillators (LO) in the up-conversion and down-conversion sections of wireless receivers and transmitters. It can provide the LO for both the RF and IF sections. It consists 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 (12-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 external loop filters and VCOs (Voltage Controlled Oscillators).

Control of all the on-chip registers is via a simple 3-wire interface with 1.8 V compatibility. The devices operate with a power supply ranging from 2.6 V to 3.3 V and can be powered down when not in use.

ADF4212L 特点

• IDD Total, 7.5 mA
• Bandwidth RF/IF, 2.4 GHz/1.0 GHz
• 2.7 V to 3.3 V Power Supply
• Separate VP Allows Extended Tuning Voltage
• Programmable Dual Modulus Prescaler RF and IF: 8/9, 16/17, 32/33, 64/65
• Programmable Charge Pump Currents
• 3-Wire Serial Interface
• Analog and Digital Lock Detect
• Fastlock Mode
• Power-Down Mode
• Lead TSSOP and 20-Lead MLF Chip Scale Package

ADF4212L 功能框图

ADF4212L 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADF4212LBCPZ	量产	20 ld LFCSP (4x4mm)	20	工业
ADF4212LBCPZ-RL	量产	20 ld LFCSP (4x4mm)	20	工业
ADF4212LBCPZ-RL7	量产	20 ld LFCSP (4x4mm)	20	工业
ADF4212LBRU	量产	20 ld TSSOP	20	工业
ADF4212LBRU-REEL	量产	20 ld TSSOP	20	工业
ADF4212LBRU-REEL7	量产	20 ld TSSOP	20	工业
ADF4212LBRUZ	量产	20 ld TSSOP	20	工业
ADF4212LBRUZ-RL	量产	20 ld TSSOP	20	工业
ADF4212LBRUZ-RL7	量产	20 ld TSSOP	20	工业

ADF4212L 应用技术支持与电子电路设计开发资源下载

1. ADF4212L 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