Features: 300 MHz Internal Clock Rate
Integrated 12-Bit Output DACs
Ultrahigh-Speed, 3 ps RMS Jitter Comparator
Excellent Dynamic Performance: 80 dB SFDR @ 100 MHz (61 MHz) AOUT
43 to 203 Programmable Reference Clock Multiplier
Dual 48-Bit Programmable Frequency Registers
Dual 14-Bit Programmable Phase Offset Registers
12-Bit Amplitude Modulation and Programmable
Shaped On/Off Keying Function
Single Pin FSK and PSK Data Interface
Linear or Nonlinear FM Chirp Functions with Single Pin Frequency "Hold" Function
Frequency-Ramped FSK<25 ps RMS Total Jitter in Clock Generator Mode
Automatic Bidirectional Frequency Sweeping SIN(x)/x Correction
Simplified Control Interface
10 MHz Serial, 2-Wire or 3-Wire SPI-Compatible or
100 MHz Parallel 8-Bit Programming
3.3 V Single Supply
Multiple Power-Down Functions
Single-Ended or Differential Input Reference Clock
Small 80-Lead LQFP Packaging
ApplicationAgile, L.O. Frequency Synthesis
Programmable Clock Generator
FM Chirp Source for Radar and Scanning Systems
Test and Measurement Equipment
Commercial and Amateur RF ExciterPinout
Specifications
| Compliance Range (V) |
1V |
| FS Iout (mA nom) |
20mA |
| I Supply total (max) |
922mA |
| I/O Interface |
Parallel,Serial |
| Master fclk |
300MHz |
| Nominal Supply (V) |
Single(+3.3) |
| On-Board Comparator |
Yes |
| REFCLK Multiplier |
Yes |
| Resolution (Bits) |
12bit |
Maximum Junction Temperature . . . . . . . . . . . . . . . .150
VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 V
Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . 0.7 V to +VS
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . .5 mA
Storage Temperature . . . . . . . . . . . . . . . .65 to +150
Operating Temperature . . . . . . . . . . . . . . .40 to +85
Lead Temperature (Soldering 10 sec) . . . . . . . . . . . .300
Maximum Clock Frequency . . . . . . . . . . . . . . . . . .300 MHzDescriptionThe AD9852 digital synthesizer is a highly integrated device that uses advanced DDS technology, coupled with an internal high-speed, high-performance D/A converters and a comparator to form a digitally-programmable agile synthesizer function. When referenced to an accurate clock source, the AD9852 generates a highly stable, frequency-phase amplitude-programmable sine wave output that can be used as an agile L.O. in communications, radar, and many other applications.
The AD9852's innovative high-speed DDS core provides 48-bit frequency resolution (1 microHertz tuning steps). Phase truncation to 17 bits assures excellent SFDR. The AD9852's circuit architecture allows the
AD9852 Data Sheet
