描述

9852 數(shù)字頻率合成器

特性
300 MHz 內(nèi)部時(shí)鐘頻率
FSK、BPSK、PSK、線性調(diào)頻、AM 操作
雙集成式 12 位數(shù)模轉(zhuǎn)換器
超高速比較器、3 ps rms 抖動(dòng)
出色的動(dòng)態(tài)性能
100 MHz (±1 MHz) AOUT時(shí) SFDR 為 80 dB
4× 至 20× 可編程基準(zhǔn)時(shí)鐘倍頻器
雙 48 位可編程頻率寄存器
雙 14 位可編程相位偏移寄存器
12 位可編程幅度調(diào)制和開/關(guān)輸出形狀調(diào)整鍵控功能
單引腳 FSK 和 BPSK 數(shù)據(jù)接口
通過 I/O 接口提供 PSK 功能
具有單引腳頻率保持功能的線性或非線性 FM 調(diào)頻功能
頻率斜升 FSK
在時(shí)鐘發(fā)生器模式下總抖動(dòng) <25 ps rms
自動(dòng)雙向掃頻
Sin(x)/x 校正
簡(jiǎn)化的控制接口
兼容 SPI 的 10 MHz 串行 2 線或 3 線
100 MHz 并行 8 位編程
3.3 V 單電源
多種關(guān)斷功能
單端或差分輸入基準(zhǔn)時(shí)鐘
具有裸焊盤的小外形 80 引腳 LQFP 或 TQFP 封裝

9852數(shù)字頻率合成器是一款高度集成的套件，該套件使用高級(jí) DDS 技術(shù)，外加內(nèi)部高速、高性 數(shù)字頻率合成器是一款高度集成的套件，該套件使用高級(jí) DDS 技術(shù)，外加內(nèi)部高速、高性能數(shù)模轉(zhuǎn)換器，構(gòu)成可數(shù)字化編程的捷變頻頻率合成器功能。在以精確時(shí)鐘源為基準(zhǔn)時(shí)，9852 可生成高度穩(wěn)定的頻率、相位和幅度可編程余弦輸出，在通信、雷達(dá)和許多其他應(yīng)用中用作捷變 LO。9852的創(chuàng)新型高速 DDS 內(nèi)核提供 48 位頻率分辨率（使用 300 MHz SYSCLK 時(shí)，調(diào)諧分辨率為 1 μHz）。為相位-幅度轉(zhuǎn)換保持 16 位分辨率可確保出色的無(wú)雜散動(dòng)態(tài)范圍 (SFDR)。

9852 的電路架構(gòu)允許以高達(dá) 150 MHz 的頻率生成輸出信號(hào)，并且能夠以高達(dá)每秒 1 億次的新頻率對(duì)這些輸出信號(hào)進(jìn)行數(shù)字化調(diào)諧。可以針對(duì)捷變時(shí)鐘發(fā)生器應(yīng)用，通過內(nèi)部比較器將（外部濾波的）余弦波輸出轉(zhuǎn)換為方波。此套件提供兩個(gè) 14 位相位寄存器和單個(gè)引腳用于 BPSK 操作。

對(duì)于更高階的 PSK 操作，可以將 I/O 接口用于相變。12 位余弦 DAC 與創(chuàng)新型 DDS 架構(gòu)結(jié)合后，可以提供出色的寬帶和窄帶輸出 SFDR。在配置有比較器的情況下，12 位控制 DAC 有助于在高速時(shí)鐘發(fā)生器應(yīng)用中實(shí)現(xiàn)靜態(tài)占空比控制。

12 位數(shù)字倍頻器允許對(duì)余弦 DAC 輸出進(jìn)行可編程幅度調(diào)制、開/關(guān)輸出形狀調(diào)整鍵控和精密幅度控制。還針對(duì)寬帶寬掃頻應(yīng)用包括了線性調(diào)頻功能。9852 可編程 4× 至 20× REFCLK 倍頻器電路可在內(nèi)部從較低頻率的外部基準(zhǔn)時(shí)鐘生成 300 MHz 的系統(tǒng)時(shí)鐘。這可省去用戶實(shí)施 300 MHz 系統(tǒng)時(shí)鐘源的費(fèi)用和困難。

直接 300 MHz 時(shí)鐘還適應(yīng)單端或差分輸入。支持斜升 FSK 的單引腳傳統(tǒng) FSK 和增強(qiáng)頻譜質(zhì)量。9852 使用高級(jí) 0.35 μ CMOS 技術(shù)，在使用單一 3.3 V 電源的情況下提供這一高級(jí)功能。

9852 單音頻率合成器之間具有引腳兼容性。9852 可在 ?40°C 至 +85°C 的擴(kuò)展工業(yè)溫度范圍內(nèi)工作。

應(yīng)用
捷變 LO 頻率合成
可編程時(shí)鐘發(fā)生器
用于雷達(dá)和掃描系統(tǒng)的 FM 線性調(diào)頻源
測(cè)試與測(cè)量設(shè)備
商用和業(yè)余 RF 激勵(lì)器

9852 數(shù)字頻率合成器

peculiarity
300 MHz internal clock frequency
FSK, BPSK, PSK, linear FM, AM operation
Dual integrated 12-bit digital-to-analog converter
Ultra high speed comparator, 3 ps rms jitter
Excellent dynamic performance
At 100 MHz (±1 MHz) AOUT, the SFDR is 80 dB
4× to 20× programmable reference clock doubler
Dual 48-bit programmable frequency registers
Dual 14-bit programmable phase shift register
12-bit programmable amplitude modulation and on/off output shape adjustment keying function
Single pin FSK and BPSK data interface
The PSK function is provided through the I/O interface
Linear or nonlinear FM frequency modulation with single-pin frequency holding
Frequency ramp up FSK
Total jitter <25 ps rms in clock generator mode
Automatic bidirectional frequency sweep
Sin(x)/x correction
Simplified control interface
10 MHz serial 2-wire or 3-wire compatible with SPI
100 MHz parallel 8-bit programming
3.3V single power supply
Multiple turn-off functions
Single ended or differential input reference clock
Small form factor 80 pin LQFP or TQFP package with bare pad

The 9852 Digital frequency synthesizer is a highly integrated kit that uses advanced DDS technology, plus internal high speed, high performance digital frequency synthesizer is a highly integrated kit that uses advanced DDS technology, plus internal high speed, high performance digital to analog converter, to form a digital programmable frequency synthesizer capabilities. When benchmarking against a precise clock source, the 9852 generates highly stable frequency, phase, and amplitude programmable cosine outputs for use as agile LO in communications, radar, and many other applications. The 9852’s innovative high-speed DDS core offers 48-bit frequency resolution (1 μHz tuning resolution when using 300 MHz SYSCLK). Maintaining 16-bit resolution for phase-to-amplitude conversion ensures excellent spury-free dynamic range (SFDR).

The 9852’s circuit architecture allows output signals to be generated at frequencies up to 150 MHz, and these output signals can be digitally tuned at new frequencies up to 100 million times per second. For agile clock generator applications, the (externally filtered) cosine wave output can be converted to a square wave by an internal comparator. This kit provides two 14-bit phase registers and a single pin for BPSK operations.

For higher order PSK operations, the I/O interface can be used for phase transitions. When combined with an innovative DDS architecture, the 12-bit cosine DAC provides excellent broadband and narrowband output SFDR. When configured with a comparator, a 12-bit control DAC facilitates static duty cycle control in high-speed clock generator applications.

The 12-bit digital frequency multiplier allows programmable amplitude modulation, on/off output shape adjustment keying, and precision amplitude control of the cosine DAC output. Linear frequency modulation is also included for wideband wide sweep applications. The 9852 programmable 4× to 20× REFCLK frequency multiplier circuit internally generates a 300 MHz system clock from an external reference clock at a lower frequency. This saves users the expense and difficulty of implementing a 300 MHz system clock source.

The direct 300 MHz clock also accommodates single-ended or differential inputs. Supports single-pin traditional FSK and enhanced spectrum quality with slant up FSK. The 9852 uses advanced 0.35μCMOS technology to deliver this advanced feature while using a single 3.3V power supply.

The 9852 single tone frequency synthesizers have pin compatibility. The 9852 can operate in an extended industrial temperature range from ?40°C to +85°C.

Apply
Agile LO frequency synthesis
Programmable clock generator
FM linear FM source for radar and scanning systems
Test and measurement equipment
Commercial and amateur RF exciter

 

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公司介紹：
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Company Introduction:
Chengdu Sunshine Xihe Co., Ltd. specializes in one-stop procurement consulting for imported industrial spare parts, offering original equipment and professional discontinued parts services. We are committed to providing efficient and reliable automation solutions for our customers. Customer support fast responseThe network of partners spans all continentsGlobal partner networkAlways achieve more delivery, be it parts, service or speed



始終實(shí)現(xiàn)更多的交付，無(wú)論是零件、服務(wù)還是速度