Complete Dual-Band Quadrature Transmitters
Highly Integrated Dual-Band Quadrature Transmitters for Cell Phones
DescriptionThe MAX2361 dual-band, triple-mode complete transmitter for cellular phones represents an integrated and architecturally advanced solution for this application. The device takes a differential I/Q baseband input and converts it up to IF through a quadrature modulator and IF variable-gain amplifier (VGA). The signal is then routed to an external bandpass filter and upconverted to RF through an image-reject mixer and RF VGA. The signal is further amplified with an on-chip PA driver. An IF synthesizer, an RF synthesizer, a local oscillator (LO) buffer, and a 3-wire programmable bus complete the basic functional blocks of this IC. The MAX2363 supports single-band, single- mode (PCS) operation. The MAX2365 supports single- band cellular dual-mode operation.
The MAX2361 enables architectural flexibility because of its two IF voltage-controlled oscillators (VCOs), two IF ports, two RF LO input ports, and three PA driver output ports. The devices allow the use of a single receive IF frequency and split-band PCS filters for optimum out-ofband noise performance. The low-noise PA drivers allow up to three RF SAW filters to be eliminated. Select a mode of operation by loading data on the SPI/QSPI/MICROWIRE-compatible 3-wire serial bus. Charge-pump current, IF/RF gain balancing, standby, shutdown plus additional functions, are also controlled with the serial interface.
The MAX2361/MAX2363/MAX2365 come in a 48-pin TQFN-EP and QFN-EP package and are specified for the extended (-40°C to +85°C) temperature range.
- CDMA, cdma2000®, TDMA, WCDMA, GAIT Mobile Phones
- GAIT Mobile Phones
- High-Speed Data Modems
- Satellite Phones
- Wireless Data Links (WAN/LAN)
- Wireless Local Area Networks (WLANs)
Technical DocumentsTutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
App Note 272 IF Tank Design for the MAX2360
Quality and Environmental DataRequest Reliability Report for: MAX2365
Lead-Free Package Tin (Sn) Whisker Reports
|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