W-CDMA LNA/Mixer ICs
Ultra-Small, Ultra-Low Current LNA/Mixer IC For W-CDMA, IMT2000, and UMTS Cellular Phones
DescriptionThe MAX2387/MAX2388/MAX2389 low-noise amplifier (LNA), downconverter mixers designed for W-CDMA applications, are ideal for ARIB (Japan) and ETSI-UMTS (Europe) based systems. The MAX2387/MAX2388/MAX2389 feature ultra-low current consumption and exceptionally low noise figures in ultra-small packages.
The MAX2387/MAX2388 include an LNA, a downconverter mixer, and a local-oscillator (LO) buffer. The MAX2389 has an LNA and mixer, but minimizes current consumption by omitting the LO buffer. For all devices, the LNA and downconverter mixers are optimized for the 2110MHz to 2170MHz band. All devices feature a high-gain mode and a low-gain mode of LNA operation. The MAX2387 has a 32dB gain step, and the MAX2388/MAX2389 have an 18dB gain step. All ICs include a shutdown mode, powering down the IC during the front-end receiver's idle periods.
The mixer 3rd-order nonlinearity performance is set using an external biasing resistor. For the MAX2387/MAX2388, mixer performance is optimized for a -10dBm typical drive at the LO buffer input port. The MAX2389 mixer performance is optimized for a -4dBm typical drive at the LO input port. The LO port for all versions is configurable for either single-ended or differential operation.
These devices operate from a +2.7V to +3.3V single supply and are available in ultra-small (3mm x 3mm) 12-pin leadless packages (QFN).
- Ultra-Low Current Consumption: 10.7mA (MAX2387), 9.9mA (MAX2388), and 7.9mA (MAX2389)
- +2.7V to +3.3V Single-Supply Operation
- Mixer NF: 7dB SSB
- Cascaded Noise Figure: 2.3dB
- LNA Low-Gain Mode: 32dB Gain Step (MAX2387) or 18dB Gain Step (MAX2388/MAX2389)
- Mixer IIP3: 6dBm
- <1µA Shutdown Current
- Ultra-Small (3mm x 3mm) 12-Pin QFN Package
- Dual-Mode WCDMA/GSM Cellular Phones
- Japanese 3rd-Generation WCDMA Cellular Phones
Technical DocumentsTutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
App Note 3039 MAX2388 Front-End IC for WCS Application at 2.3GHz RF and 220MHz IF
Tutorial 742 Impedance Matching and the Smith Chart: The Fundamentals
App Note 486 MAX2388 at 190MHz IF for WCDMA
Quality and Environmental DataRequest Reliability Report for: MAX2387
Lead-Free Package Tin (Sn) Whisker Reports
Tools & Models
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
- 925MHz to 2175MHz Frequency Range
- Monolithic VCO
- High Dynamic Range: -75dBm to 0dBm
|Tutorial||5100||General Layout Guidelines for RF and Mixed-Signal PCBs|
|App Note||3039||MAX2388 Front-End IC for WCS Application at 2.3GHz RF and 220MHz IF|
|Tutorial||742||Impedance Matching and the Smith Chart: The Fundamentals|
|App Note||486||MAX2388 at 190MHz IF for WCDMA|