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| MITSUBISHI ICs (COMMUNICATION) M64821FP 1 CHIP SYNTHESIZER & MODULATOR FOR PHS DESCRIPTION The M64821FP is a semiconductor consisting of PLL and Modulator. Using Bi-CMOS technology, it contains dual PLL (1.8GHz, 550MHz), a mixer for 2nd IF, transistor for VCO , modulator and Up-convertor on chip. PIN CONFIGURATION (TOP VIEW) FEATURES * Built-in 2nd mixer and RSSI * Vcc=2.7 to 3.6V * Icc= TYP.41mA (TX.), TYP.23mA (RX.) * Built-in high accuracy phase shifter (CR type) * Large Output (-13dBm type) * Attenuator for Gain Control * Gain characteristics with temperature dependent * Built-in transistor and Buffer for 2nd Local VCO * Built-in Buffer for 1.6GHz VCO * Small Package (48pin QFP, lead pitch 0.5mm) Outline 48P6D APPLICATION Digital cordless phone (PHS) BLOCK DIAGRAM to 1stMIX from BBIC to CINpin QB signal input IB signal input Q signal input I signal input CP1 Charge pump output Vcc(CP) CP2 Charge pump output VCO1 LOCK Lock Det. output LPF LE Load enable SI Serial Data CPS Clock GND(VCO) L,C Osc. Cir. Vcc(VCO) LIMOUT RSSI GND(CP) to BBIC (Demod.) to BBIC LPF Control signals of PLL(from BBIC) 1 2 3 4 27 26 25 18 21 20 19 11 6 7 8 9 32 33 ON/OFFControl (from BBIC) 17 CTL1(MainPLL) 16 CTL2(LocalPLL) E Vcc(MOD) GND(MOD) 5 48 O CP1 Lock Det Decoder CP2 2nd Local VCO B 15 CTL3(MOD&Up-Conv.) 14 CTL4(LIM&2ndMIX) 13 CTL5(X'tal osc) GND(SUB) 38 PLL1 (1st Local) 300KHz PLL2 (2nd Local) 100KHz 1/2 RSSI 34 Vcc(LIM) 31 GND(LIM) DECOUPLE from BBIC GAIN CONT 47 Prescaler fREF1 fREF2 36 LIM IN 35 BPF BPF to RFIC TX OUT 45 Up Conv. OSC 2nd MIX 37 41 43 MIX2OUT GND GND 46 GND(UPCON) 44 Vcc(UPCON) 29 Vcc(Prescaler) 30 CIN 28 GND(Prescaler) 24 XOUT 23 XIN 22 XBO 12 GND(PLL) 10 Vdd(PLL) 40 GND(MIX) 39 MIX2IN 42 Vcc(MIX) from VCO1 X'tal to BBIC Matching Cir. BPF 1stIF MITSUBISHI ELECTRIC 1 |
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