THS6226A
- Digitally-Adjustable Quiescent Current:
9.4 mA to 24.8 mA - Bias Current Step: 1.0 mA
- Independent Voltage Boost and Main Line Driver Disable
- Low-Power Line Termination Mode
- Full Capacitor Recharge: 200 µs
- Low Input Voltage Noise Density:
6.5 nV/√Hz Input-Referred Voltage Noise - Low MTPR Distortion:
70 dB with +19.8 dBm G.993.2—Profile 8b - –83-dBc HD3 (1 MHz, 60-Ω Differential)
- High Output Current: 383 mA into 60 Ω
- Wide Output Swing: 40 VPP (+12-V, 60-Ω Differential Load with a 1:1.4 Transformer)
- Wide Bandwidth: 97 MHz
- Port-to-Port Separation: 90 dB at 1 MHz
- PSRR: 70 dB at 1 MHz for Good Isolation
The THS6226A is a dual-port, class H, current-feedback architecture, differential line driver amplifier system ideal for xDSL systems. The device is targeted for use in very-high-bit-rate digital subscriber line 2 (VDSL2) line driver systems that enable native DTM signals while supporting greater than +20.5-dBm line power (up to 8.5 MHz) with good linearity, supporting the G.993.2 VDSL2 8b profile. The device is also fast enough to support central-office transmissions of +14.5-dBm line power up to 30 MHz.
The unique architecture of the device allows quiescent current to be minimal while still achieving very high linearity. Differential distortion, under full bias conditions, is –91 dBc at 1 MHz and reduces to only –75 dBc at 5 MHz. Fixed multiple bias settings of the amplifiers offer enhanced power savings for line lengths where the full performance of the amplifier is not required. To allow for even more flexibility and power savings on all profiles, quiescent current is digitally adjustable from 7.6 mA to 23 mA with a bias current step of 1.0 mA. For systems where additional power savings while not transmitting are desired, the device can be used in its line termination mode to maintain impedance matching.
The wide output swing on +12-V power supplies, coupled with excellent current drive, allows for wide dynamic headroom, keeping distortion minimal. The device is available in a VQFN-32 PowerPAD™ package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | THS6226A Gated-Class H, Dual-Port VDSL2 Line Driver datasheet (Rev. A) | PDF | HTML | 2014年 5月 22日 |
E-book | The Signal e-book: A compendium of blog posts on op amp design topics | 2017年 3月 28日 | ||
Application note | Noise Analysis for High Speed Op Amps (Rev. A) | 2005年 1月 17日 |
設計與開發
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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封裝 | 引腳 | 下載 |
---|---|---|
VQFN (RHB) | 32 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點