Hardware Interface Description - Wireless Data Modules

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MC55/56 Hardware Interface Description Confidential / Released s 5.5.5 Voiceband transmit path Test conditions: • The values specified below were tested to 1kHz and 0dB gain stage, unless otherwise stated. • Parameter setup: Audio mode = 5 for MICP1 to MICN1 and 6 for MICP2 to MICN2, inBbcGain= 0, inCalibrate = 32767, outBbcGain = 0, OutCalibrate = 16384, sideTone = 0 Table 31: Voiceband transmit path Parameter Min Typ Max Unit Test condition/Remark Input voltage (peak to peak) MICP1 to MICN1, MICP2 to MICN2 Input amplifier gain in 6dB steps (inBbcGain) 1.03 V 0 42 dB Set with AT^SNFI Fine scaling by DSP (inCalibrate) -∞ 0 dB Set with AT^SNFI Input impedance MIC1 50 kΩ Input impedance MIC2 2.0 kΩ Microphone supply voltage ON Ri = 4kΩ (MIC2 only) Microphone supply voltage OFF; Ri = 4kΩ (MIC2 only) Microphone supply in POWER DOWN mode 2.57 2.17 1.77 2.65 2.25 1.85 2.73 2.33 1.93 V V V 0 V no supply current @ 100µA @ 200µA See Figure 17 MC55/56_hd_v02.06 Page 90 of 105 29.10.2004
MC55/56 Hardware Interface Description Confidential / Released s 5.6 Air interface Test conditions: All measurements have been performed at T amb = 25°C, V BATT+ nom = 4.1V. The reference points used on MC55/56 are the BATT+ and GND contacts (test points are shown in Figure 40). Table 32: Air Interface Parameter Min Typ Max Unit Frequency range Uplink (MS → BTS) Frequency range Downlink (BTS → MS) RF power @ ARP with 50Ω load Number of carriers Duplex spacing GSM 850 3) 824 849 MHz E-GSM 900 4) 880 915 MHz GSM 1800 1710 1785 MHz GSM 1900 1850 1910 MHz GSM 850 3) 869 894 MHz E-GSM 900 4) 925 960 MHz GSM 1800 1805 1880 MHz GSM 1900 1930 1990 MHz GSM 850 3) 31 33 35 dBm E-GSM 900 4) 1) 31 33 35 dBm GSM 1800 2) 28 30 32 dBm GSM 1900 28 30 32 dBm GSM 850 3) 124 E-GSM 900 4) 174 GSM 1800 374 GSM 1900 299 GSM 850 3) 45 MHz E-GSM 900 4) 45 MHz GSM 1800 95 MHz GSM 1900 80 MHz Carrier spacing 200 kHz Multiplex, Duplex TDMA / FDMA, FDD Time slots per TDMA frame 8 Frame duration 4.615 ms Time slot duration 577 µs Modulation Receiver input sensitivity @ ARP BER Class II < 2.4% (static input level) GMSK GSM 850 3) -102 -107 dBm E-GSM 900 4) -102 -107 dBm GSM 1800 -102 -106 dBm GSM 1900 -102 -105.5 dBm 1) Power control level PCL 5 2) Power control level PCL 0 3) MC56 only 4) MC55 only MC55/56_hd_v02.06 Page 91 of 105 29.10.2004
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