產品詳細資料

2nd harmonic (dBc) -84 3rd harmonic (dBc) 83 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 0.53 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 1400 Gain (max) (dB) 26 Gain (min) (dB) -5.5 Step size (dB) 0.5 Type RF VGA Iq per channel (typ) (mA) 113 Number of channels 2 Rating Catalog Operating temperature range (°C) -40 to 85 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
2nd harmonic (dBc) -84 3rd harmonic (dBc) 83 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 0.53 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 1400 Gain (max) (dB) 26 Gain (min) (dB) -5.5 Step size (dB) 0.5 Type RF VGA Iq per channel (typ) (mA) 113 Number of channels 2 Rating Catalog Operating temperature range (°C) -40 to 85 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
WQFN (RTV) 32 25 mm² (5 mm × 5 mm)
  • OIP3 of 48.5 dBm at 200 MHz
  • Maximum Voltage Gain of 26 dB
  • Gain Range: 31.5 dB with 0.5-dB Step Size
  • Channel Gain Matching of ±0.04 dB
  • Noise Figure: 7.3 dB at Maximum Gain
  • –3-dB Bandwidth of 1200 MHz
  • Low Power Dissipation
  • Independent Channel Power Down
  • Three Gain Control Modes:
    • Parallel Interface
    • Serial Interface (SPI)
    • Pulse Mode Interface
  • Temperature Range: –40°C to +85°C
  • Thermally-Enhanced, 32-Pin WQFN Package
  • OIP3 of 48.5 dBm at 200 MHz
  • Maximum Voltage Gain of 26 dB
  • Gain Range: 31.5 dB with 0.5-dB Step Size
  • Channel Gain Matching of ±0.04 dB
  • Noise Figure: 7.3 dB at Maximum Gain
  • –3-dB Bandwidth of 1200 MHz
  • Low Power Dissipation
  • Independent Channel Power Down
  • Three Gain Control Modes:
    • Parallel Interface
    • Serial Interface (SPI)
    • Pulse Mode Interface
  • Temperature Range: –40°C to +85°C
  • Thermally-Enhanced, 32-Pin WQFN Package

The LMH6521 contains two high performance, digitally controlled variable gain amplifiers (DVGA).

Both channels of the LMH6521 have an independent, digitally controlled attenuator followed by a high linearity, differential output amplifier. Each block has been optimized for low distortion and maximum system design flexibility. Each channel has a high speed power down mode.

The internal digitally controlled attenuator provides precise 0.5-dB gain steps over a 31.5-dB range. Serial and parallel programming options are provided. Serial mode programming uses the SPI interface. A pulse mode is also offered where simple up or down commands can change the gain one step at a time.

The output amplifier has a differential output allowing 10-VPPD signal swings on a single 5-V supply. The low impedance output provides maximum flexibility when driving filters or analog to digital converters.

The LMH6521 contains two high performance, digitally controlled variable gain amplifiers (DVGA).

Both channels of the LMH6521 have an independent, digitally controlled attenuator followed by a high linearity, differential output amplifier. Each block has been optimized for low distortion and maximum system design flexibility. Each channel has a high speed power down mode.

The internal digitally controlled attenuator provides precise 0.5-dB gain steps over a 31.5-dB range. Serial and parallel programming options are provided. Serial mode programming uses the SPI interface. A pulse mode is also offered where simple up or down commands can change the gain one step at a time.

The output amplifier has a differential output allowing 10-VPPD signal swings on a single 5-V supply. The low impedance output provides maximum flexibility when driving filters or analog to digital converters.

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The TSW1265EVM is a wideband dual receiver reference design and evaluation platform. The signal chain allows conversion from RF to bits using a dual-channel downconverter mixer, the LMH6521 dual-channel DVGA, and the ADS4249 14-bit 250-MSPS ADC. The TSW1265EVM also includes the LMK04800 dual-PLL (...)

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LMH6521 TINA-TI Spice Model

SNOM322.ZIP (8 KB) - TINA-TI Spice 模型
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計算工具

RF-CASCADE-CALC-TOOL — TI RF 級聯計算機

A browser-based RF lineup analysis tool supporting up to 10 stages. Computes gain, NF, OIP3, OIP2, OP1dB, and derived metrics. Features dual-axis Plotly charts, P1dB saturation detection, and export to CSV
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參考設計

TIDA-00073 — 雙寬頻射頻轉數位接收器設計

TSW1265EVM 是寬頻 RF 轉數位雙接收器解決方案的範例設計,可將高達 125MHz 的頻譜數位化。系統示範了如何使用 ADS4249、LMH6521、LMK0480x 和一個雙混頻器來達成此目標。  此參考 EVM 與擷取卡(例如 TSW1400)一起使用,可用於擷取和分析窄頻和寬頻訊號。  介紹了有關如何更改 LO 和 IF 頻率以滿足不同應用需求的說明。  TIDA-00073 是使用 TSW1265EVM 的硬體實現的。

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參考設計

TIDA-00074 — 寬頻射頻轉數位複雜接收器 - 回饋訊號鏈

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參考設計

TIDA-00353 — JESD204B 串列鏈路的均衡最佳化參考設計

採用等化技術是補償資料轉換器 JESD204B 高速序列介面通道損耗的有效方式。此參考設計搭載 ADC16DX370,這是一款雙 16 位元、370MSPS 類比轉數位轉換器 (ADC),可利用去強調等化功能,為 7.4Gbps 序列資料做好傳輸準備。配置允許使用者將輸出驅動器的去強調設定 (DEM) 和輸出電壓擺幅設定 (VOD) 最佳化,以與通道特性反比匹配。實驗表明,以完整資料速率接收超過 20” FR-4 材料的乾淨數據眼。

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參考設計

TIDA-00360 — 具 16 位元 ADC 和 100 MHz IF 頻寬的 700–2700 MHz 雙通道接收器參考設計

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WQFN (RTV) 32 Ultra Librarian

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