The U2896B is a monolithic integrated circuit manufactured using TEMIC Semiconductors’ advanced silicon bipolar UHF5S technology. The device integrates a mixer, an I/Q modulator, a phase-frequency detector (PFD) with two synchronous programmable dividers, and a charge pump. The U2896B is designed for cellular phones such as GSM900, DCS1800, and PCS1900, applying a transmitter architecture at which the VCO operates at the TX output frequency. No duplexer is needed since the out-of-band noise is very low. The U2896B exhibits low power consumption. Broadband operation provides high flexibility for multi-band frequency mappings. The IC is available in a shrinked small-outline 36-pin package (SSO36). Electrostatic sensitive device. Observe precautions for handling.
The U2896B is a monolithic integrated circuit manufactured using TEMIC Semiconductors' advanced silicon bipolar UHFSS technology. It integrates a mixer, an I/Q modulator, a phase-frequency detector (PFD) with two synchronous programmable dividers, and a charge pump. The device is designed for cellular phones operating in GSM900, DCS1800, and PCS1900 bands, utilizing a transmitter architecture where the VCO operates at the TX output frequency to eliminate the need for a duplexer.
| Supply voltage range | 2.7 V to 5.5 V |
|---|---|
| Current consumption | 40 mA |
| Ambient temperature | -20 to +85 °C |
| Package type | SSO36 |
| N:1 divider frequency | 100 to 600 MHz |
| R:1 divider frequency | 100 to 600 MHz |
The U2896B is designed for cellular phones such as GSM900, DCS1800, and PCS1900.
The typical supply current in active mode is 21 mA for the main supply and 2.8 mA for the charge pump supply.