Description

The CXM3553ER-T2 is a module for the RF section of GSM/GPRS handsets containing a fast-lock synthesizer and RF transceiver. It is part of the IC Chips product category.

Specifications and features

• Receiver, transmitter, dual PLL, RF + IF VCOs
• Dual fast lock PLL (< 140 µs)
• No external RF or IF LO required
• Extremely small size: 8.0 × 8.0 × 1.3 mm
• Programmable baseband interface
• Tx sum-loop modulator
• Power save control on all functions
• Rx current 55 mA 3.0 V
• Tx current 75 mA 3.0 V
• On-chip LNA bias control
• On-chip transmit IF filtering
• 3-wire serial bus control
• 60-pin LFLGA module package

Application Scenarios

It is suitable for use in GSM/GPRS handsets. Specific applications include GPRS class 12, GSM900/1800/1900 triple band, GSM900/1800 dual band, GSM900/1900 dual band, GSM900 single band, GSM1800 single band, and GSM1900 single band.

Comparison

• Contains receiver, transmitter, dual PLL, RF + IF VCOs
• Supports multiple bands
• Programmable interface allows for customization in different handsets

• No external RF or IF LO required, but might not be compatible with certain circuit designs
• Small size could limit availability and ease of installation