AD8327: 5 V CATV Line Driver Coarse Step Output Power Control
The AD8327 is a low-cost, digitally controlled, variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the MCNS-DOCSIS upstream standard. ...More
AD8327: 5 V CATV Line Driver Coarse Step Output Power Control
Product Description
The AD8327 is a low-cost, digitally controlled, variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the MCNS-DOCSIS upstream standard. An 8-bit serial word determines the desired output gain over a 48.16 dB range resulting in gain changes of 6.02 dB/major carry.
- 产品数据手册 Rev 0, 12/2001 (pdf 298kB)
- （关于数据手册）
Features
- Supports DOCSIS Standard for
Reverse Path Transmission - Gain Programmable in 6.02 dB
Steps over a 48.16 dB Range - Low Distortion at 60 dBmV Output
–63 dBc SFDR at 21 MHz
–57 dBc SFDR at 42 MHz - Output Noise Level
–47 dBmV in 160 kHz
- Maintains 75Ω Output Impedance
Transmit Enable and Transmit
Disable Modes - Upper Bandwidth:
160 MHz (Full Gain Range) - 5 V Supply Operation
- Supports SPI Interfaces
| Part# | Gain Control | -3 dB BW (MHz) | Gain Low End (dB) | Gain High End (dB) | Number of Channels | Spectral Noise (nV/rtHz) | Supply Voltage (V) | Supply Current (max) | Gain Accuracy (dB) | 1 dB Comp Point (dBm) | Package | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AD600 | Analog | 35 | 0 | +40 | 2 | 1.4 | ±5 | 14mA | - | - | - | $16.61 |
| AD602 | Analog | 35 | -10 | +30 | 2 | 1.4 | ±5 | 14mA | - | - | - | $13.36 |
| AD603 | Analog | 90 | -11 | +31 | 1 | 1.4 | ±5 | 20mA | ±0.5 | - | 8-Lead DIP, 8-Lead SOIC | $4.40 |
| AD604 | Analog | 40 | 0 | +48 | 2 | 0.8 | ±5 | 31mA | ±0.3 | 15 | 24-Lead SOIC, 24-Lead SSOP | $16.45 |
| AD605 | Analog | 40 | -14 | +34 | 2 | 1.8 | +5 | 23mA | ±0.2 | 15 | 16-Lead SOIC | $9.91 |
| AD8260 | Digital | 180 | -6 | +24 | 1 | 2.4 | +3.3 | 28mA | +0.25 | - | - | $3.84 |
| AD8320 | Digital | 150 | -10 | +26 | 1 | 53 | +12 | 105mA | ±0.2 | 22.5 | 20-Lead SOIC | - |
| AD8321 | Digital | 120 | -27.4 | +26 | 1 | 20 | +9 | 90mA | ±1 | 19.5 | 20-Lead SOIC | $4.40 |
| AD8322 | Digital | 180 | -12.6 | +29.5 | 1 | 64 | +5 | 113mA | ±2 | 19 | 28-Lead TSSOP | $3.19 |
| AD8323 | Digital | 100 | -26 | +27.5 | 1 | - | +5 | - | - | - | 28-Lead TSSOP | $3.34 |
| AD8324 | Digital | 100 | -25.5 | +33.5 | 1 | 157 | +3.3 | 207mA | ±1 | 21 | 20-Lead LFCSP, 20-Lead QSOP | $1.73 |
| AD8325 | Digital | 100 | -29.5 | +30 | 1 | 56 | +5 | 133mA | ±1 | 18.5 | 28-Lead TSSOP | $3.34 |
| AD8326 | Digital | 100 | -26 | +27.5 | 1 | 100 | ±5 | 157mA | ±1 | 26.5 | 28-Lead PSOP, 28-Lead TSSOP | $3.95 |
| AD8327 | Digital | 160 | -18 | +30 | 1 | 64 | +5 | 105mA | ±1 | 18 | 20-Lead TSSOP |