IS-54/-136 SA621 SA7025 SA900 SA637 SA606 SA611/631 SA7025/SA7026 SA1920 SA647 - Datasheet Archive

 

System Solutions American Digital Cellular RF transceiver chip­sets (TDMA) North American Digital Cellular (NADC) IS-54/-136

 

Philips Semiconductors System Solutions American Digital Cellular RF transceiver chip­sets (TDMA) North American Digital Cellular (NADC) IS-54/-136 IS-54/-136 PCS TDMA RF Transceiver Chipsets 1st generation TDMA RF transceiver chip-set (Single-band 800MHz, Dual-mode AMPS/DAMPS) The chip-set combines all of the necessary RF and IF functions into four integrated devices: the SA621 SA621 RF front end, the SA7025 SA7025 dual frequency synthesizer, the SA900 SA900 I/Q transmit modulator and the SA637 SA637 digital IF receiver or SA606 SA606 FM IF receiver + external I/Q demodulator. These devices were designed as a system and therefore have interface levels which are matched, eliminating the need for additional buffers and interface devices. There is also a common high speed serial interface bus, making addressing the devices simpler. Additionally the frequency plan was designed to eliminate the need for an additional synthesizer and VCO loop. All of these features dramatically reduces the cost and size while improving the performance of the overall system. Although this is our first IS-54/-136 IS-54/-136 solution, our 4-chip configuration is one of the most integrated and easy to use chip-set available. For example, the SA900 SA900 provides I/Q modulators, the phase shifter, the VGA, a filter, control logic, clock distribution and more in a single IC. The need for two RF synthesizers was eliminated by closely coupling the SA7025 SA7025 and the SA900 SA900 so it is possible to use the main synthesizer to simultaneously generate receive and transmit signals. The integration and connectivity of the chip-set promote significant cost reduction. In addition this integrated solution reduces the time to a final product by simplifying the design effort. Philips 1st generation TDMA RF transceiver chipset consists of the following ICs: SA611/631 SA611/631 1GHz low voltage LNA and mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA621 SA621 1GHz low voltage LNA, mixer and VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA606 SA606 Low voltage high performance mixer FM/IF system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA637 SA637 Low-voltage digital IF receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA7025/SA7026 SA7025/SA7026 Low-voltage 1GHz and 1.3GHz fractional-N synthesizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA900 SA900 I/Q transmit modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2nd generation TDMA RF transceiver chip-set (Dual-band 800/1900MHz, Triple-mode AMPS/DAMPS/PCS) This chip-set combines all the necessary RF and IF functions into three integrated devices: the SA1920 SA1920 RF dual-band front end, the SA647 SA647 Low power digital IF system receiver and the SA9025 SA9025 I/Q transmit modulator with integrated dual fractional-N frequency synthesizer. This is the most highly integrated dual-band, triple-mode PCS chip-set available on the market. These devices were designed as a system and therefore have interface levels which are matched, eliminating the need for additional buffers and interface devices. Additionally the frequency plan was designed to eliminate the need for any additional synthesizer and VCO loop. The result is a smaller, cost effective, low-power phone that is ultimately more attractive to the end users. Philips 2nd generation TDMA (PCS) RF transceiver chipset consists of the following ICs: SA3600 SA3600 Low voltage dual-band 800/1900MHz RF front-end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA1920 SA1920 Dual-band 800/1900MHz RF Front-End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA647 SA647 Low-Power FM IF System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA9025 SA9025 Transmit Modulator with integrated Dual Fractional-N synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1999 Aug 06 1 Philips Semiconductors System Solutions SA7025/ SA7025/ SA7026 SA7026 SA637 SA637 1st generation TDMA RF transceiver chip­set (AMPS/DAMPS) SA637 SA637 or SA606 SA606 (FM only) SA611/621/631 SA611/621/631 2 1999 Aug 06 2 3 DUAL PCS 1880 MHz 835 MHz SA1920/SA3600 SA1920/SA3600 HB_LNA Image Reject Mixer LO input SA9025 SA9025 Tx LO2 Q QI I I/Q Mod. X2 HB IFB HB IFA LB IFB EN DATA Main Div. REF Div. N AMPS/TDMA: 980.55 MHz PCS Rx: 1020.30 MHz PCS Tx: 1002.78 MHz Aux. Div. PHA PHI SA647 SA647 450 kHz 155.52 MHz PHP 110.52 MHz Control Logic Tx Rx LO1 HB and LB Duplexers LO1 Tx LB IFA CLK LB_LNA STRB 881 MHz LOCK 1999 Aug 06 Rx LO2 REF 19.44 MHz MCLK RCLK AUX IN VCO IF AMP + ­ Fast RSSI LIMITER FREQUENCY PLAN AMPS/TDMA­ Tx: 824­849 MHz Rx: 869­894 MHz PCS­ Tx: 1850­1910 MHz Rx: 1930­1990 MHz 450 kHz 2nd Generation PCS Dual­Band/Triple Mode RF Chipset To Baseband Interface Philips Semiconductors System Solutions 2nd generation TDMA RF transceiver chip-set (AMPS/DAMP/PCS)