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> Qualcomm IFT3000 tx if/baseband processor for cdma/amps
Qualcomm IFT3000 tx if/baseband processor for cdma/amps
The circuit blocks within the IFT3000 device include digital-to-analog converters (DACs) for converting digital baseband to analog baseband, lowpass filters, a mixer for upconverting to IF and an 85 dB dynamic range Tx AGC amplifier. The IFT3000 device includes a fully programmable phase-locked loop (PLL) for generating Tx LO and IF frequencies. The IFT3000 device also has an 8-bit general-purpose ADC with three selectable inputs for monitoring battery level, RF signal strength and phone temperature.
* Supports IS-98 (CDMA) and IS-19 (AMPS) standards for dual-mode operation
* Operates on 2.7 to 3.15 V supply voltage
* 8-bit DACs convert digital baseband signals to analog baseband
* CDMA and FM signal paths include lowpass filters for I and Q output waveform smoothing
* IF mixer upconverts analog baseband to IF
* Tx power control through 85 dB dynamic range AGC amplifier
* Programmable Tx PLL for generating Tx IF frequency
* VCO for generation of Tx LO mixing signal
* 8-bit general-purpose ADC with 3-input analog multiplexer and selectable input ranges
* Operational Mode compatibility with the MSM2300 and MSM3000 devices
* Enhanced features with MSM3000 device through three-line serial bus interface (SBI):
* Tx PLL phase-detector polarity
* Punctured CDMA transmission
* 48-pin BCC packaging options for dense circuit assemblies
http://pdf1.alldatasheet.com/datasheet-pdf/view/84031/QUALCOMM/IFT3000.html
