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| Direct Vector Modulator + Mixer PMB 2201 B6HF PMB 2202 B6HF General Description The PMB 2201, 2202 family is a direct quadrature modulator and double balanced mixer. It is fabricated using Siemens B6HF silicon bipolar process. In a typical application the wanted mixer output product is bandpass filtered and then fed to the modulator LO input. The mixer may also be used to upconvert the modulator output signal to higher frequencies up to 2.5 GHz. The modulator generates two orthogonal carriers which are mixed with the baseband modulation signals by two multipliers. The outputs of the multipliers are added and amplified by a linear output stage. The modulator and the mixer have separate power supplies and grounds. They can be powered down independently. Applications * Vector modulated cellular and cordless systems: PMB 2201: GSM, PDC, DAMPS, CDMA, WLAN, PMB 2202: PCN, PCS, PDC, PHS, WCPE, WLL, WLAN, etc. * Various modulation schemes, such as PM, PSK, FSK, QAM, QPSK, GMSK etc. * Analog systems with FM- and AM modulation * Space and power saving optimizations of existing discrete transmitter circuits Type PMB 2201-R PMB 2202-R Features Package P-TSSOP-24-1 (SMD) P-TSSOP-24-1 (SMD) * Direct modulation vector modulator * Wide LO-frequency range PMB 2201: 0.8 GHz to 1.5 GHz PMB 2201: 1.5 GHz to 2.5 GHz * Generation of orthogonal carriers without external elements and without trimming * 35-dB carrier rejection, 40-dB SSB rejection * 42-dB rejection of third order products * 0-dBm modulator output power * Independent double balanced Gilbert cell mixer * RF- and IF-frequency range from DC to 2.5 GHz * Low noise figure, high conversion gain * Supply voltage range from 2.7 V to 5.5 V * Low power consumption * Power-down mode * P-TSSOP-24 package * Temperature range - 30 C to 85 C MO MO LO LO B B A A Q 0 RF RF x2 %2 90 Bias 1 Bias 2 E E IF IF PD 1 TREF PD 2 ITB08466 Block Diagram Siemens Aktiengesellschaft 1 Direct Vector Modulator + Mixer PMB 2201 B6HF PMB 2202 B6HF Q 0 x2 %2 90 178 MHz (130 MHz) 1429 ... 1465 MHz (940 ... 956 MHz) V CO V CO PMB 2201 1607 ... 1643 MHz (810 ... 826 MHz) TXDATA :N2 PD2 PD1 :N1 1607 ... 1643 MHz (940 ... 956 MHz) 130.5 MHz PMB 2303 REF RXDATA RSSI :R2 :R1 455 kHz Demod. PMB 2331 130 MHz 1477 ... 1513 MHz (810 ... 826 MHz) ITB08467 PMB 2333 PDC Application PMB 2201 / PMB 2303 / PMB 2331 / PMB 2333 Siemens Aktiengesellschaft 2 Direct Vector Modulator + Mixer PMB 2201 B6HF PMB 2202 B6HF Q 0 259.25 MHz x2 %2 90 V CO V CO PMB 2202 1635.75 ... 1647.75 MHz TXDATA 1895 ... 1907 MHz :N2 PD2 PD1 :N1 PMB 2303 REF RXDATA RSSI :R2 :R1 1646.65 ... 1658.45 MHz 259.15 MHz 10.7 MHz Demod. PMB 2331 PMB 2333 248.45 MHz 1895 ... 1907 MHz ITB08468 PHS Application PMB 2202 / PMB 2303 / PMB 2331 / PMB 2333 Siemens Aktiengesellschaft 3 |
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