MITSUBISHI ICs (COMMUNICATION) M64821FP 1 CHIP SYNTHESIZER & MODULATOR FOR PHS DESCRIPTION PIN CONFIGURATION (TOP VIEW) 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. 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 Outline • Built-in Buffer for 1.6GHz VCO 48P6D • Small Package (48pin QFP, lead pitch 0.5mm) APPLICATION 27 26 18 25 11 6 7 to BBIC to BBIC (Demod.) 32 9 8 RSSI LIMOUT Vcc(VCO) B 19 GND(VCO) 20 L,C Osc. Cir. E 21 CP2 Charge pump output 4 CPS Clock 3 GND(CP) Q signal input 2 to CINpin IB signal input 1 QB signal input I signal input from BBIC Control signals of PLL(from BBIC) LE Load enable LPF SI Serial Data VCO1 LOCK Lock Det. output to 1stMIX CP1 Charge pump output Vcc(CP) BLOCK DIAGRAM LPF Digital cordless phone (PHS) ON/OFFControl (from BBIC) 33 17 CTL1(MainPLL) 16 CTL2(LocalPLL) Vcc(MOD) GND(MOD) 5 CP1 Lock Det Decoder CP2 2nd Local VCO 15 CTL3(MOD&Up-Conv.) 14 CTL4(LIM&2ndMIX) Ø 48 13 CTL5(X'tal osc) GND(SUB) PLL1 (1st Local) 38 PLL2 (2nd Local) 31 GND(LIM) from BBIC Prescaler 47 1/2 36 fREF2 fREF1 DECOUPLE LIM IN 35 TX OUT 45 BPF BPF 34 Vcc(LIM) 100KHz 300KHz GAIN CONT RSSI Up Conv. 2nd MIX OSC 37 to BBIC MITSUBISHI ELECTRIC 39 MIX2IN 40 41 GND 43 GND 42 Vcc(MIX) 10 GND(MIX) X'tal 12 Vdd(PLL) 22 GND(PLL) 23 XBO 24 XIN Vcc(Prescaler) 28 XOUT Vcc(UPCON) 30 CIN 29 GND(Prescaler) 44 from VCO1 46 GND(UPCON) to RFIC MIX2OUT Matching Cir. BPF 1stIF 1