MAX9989ETP+
Active+14DBM TO +20DBM LO BUFFERS WITH ±1DB VARIATION
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MAX9989ETP+
Active+14DBM TO +20DBM LO BUFFERS WITH ±1DB VARIATION
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX9989ETP+ |
|---|---|
| Frequency [Max] | 1.1 GHz |
| Frequency [Min] | 700 MHz |
| Function | LO Buffers |
| Mounting Type | Surface Mount |
| Package / Case | 20-WQFN Exposed Pad |
| RF Type | Cellular, GSM |
| Secondary Attributes | 40 dB |
| Supplier Device Package | 20-TQFN (5x5) |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 0.00 | |
Description
General part information
MAX9989 Series
The MAX9989 and MAX9990 LO buffers provide the high output (+14dBm to +20dBm) necessary to drive the LO inputs of high-linearity passive mixers, while offering 40dB reverse isolation to prevent LO pulling. The MAX9989 is internally matched for the cellular/GSM bands, and the MAX9990 is matched for the DCS/PCS/UMTS bands.TheTypical Application Circuitprovides a nominal +17dBm output power with ±1dB variation over supply, temperature, and input power. With two optional resistors, the output power can be precision set from +14dBm to +20dBm. The devices offer more than 35dB main driver output to PLL amp output isolation. Each device is offered in a 5mm x 5mm 20-pin thin QFN package with exposed paddle.ApplicationsCellular/GSM/DCS/PCS/UMTS Base Station Tx/Rx LO DriveCoherent ReceiversISM Wireless LANLocal Multipoint Distribution ServicePoint-to-Point SystemsWireless Local Loop (WLL)
Documents
Technical documentation and resources