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MGCM02 Datasheet(PDF) 1 Page - Zarlink Semiconductor Inc |
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MGCM02 Datasheet(HTML) 1 Page - Zarlink Semiconductor Inc |
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1 / 21 page  1 MGCM02 TDMA/AMPS IF and Baseband Interface Data Sheet April 200 3 Ordering Information MGCM02/ KG/BP1N Figure 1 - Block Diagram Features • Complete IF to Baseband for IS136 • 100dB Gain Control • Channel Filtering (30kHz) • FM Demodulator • RSSI Output • Dual IF Synthesisers • Fully Programmable via serial bus • 3 Volt operation • 49 Ball BGA package (7 x 7 mm) Applications • Dual Mode TDMA/AMPS Mobile telephones • Dual Band (PCS1900/900) TDMA/AMPS Mobile telephones • PCS 1900 TDMA Mobile Telephones Description The MGCM02 provides the complete IF to baseband I and Q including channel filtering for IS136/AMPS. The receive input is at an IF frequency up to 200MHz. This is downconverted to an internal IF of 60kHz and filtered by a switched capacitor bandpass filter which also provides image rejection. The 60kHz signal is then demodulated to give baseband I and Q signals. Over 100dB of gain control is provided. The baseband outputs can be input directly to an A to D converter. The internal FM discriminator can be used for demodulating AMPS signals. The receive path also provides RSSI. Transmit I and Q baseband signals from D to A converters can be input directly to MGCM02 which provides reconstruction filters and a variable gain buffer. The two PLL synthesisers are used for generation of the receive and transmit IF LO signals. Receive Section Σ 90Î RXQ OP+,- 60kHz 60kHz RXI OP+,- IF IP+,- AUDIO AUDIO FB RSSI FB RSSI LO + LO - FM Discrim Control SCLK SDATA SLATCH RESETB PCA Transmit Section Tx FM TX IIP+,- TXQ IP+,- TXI OP+,- TXQ OP+,- Rx Tx Rx VCO Rx LOCK Rx PD Tx LOCK Tx PD Synthesisers Tx VCO RSSI To Rx PLL MGCM02/ KG/BP1Q |
Similar Part No. - MGCM02 |
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Similar Description - MGCM02 |
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