32TK-880SEMICONDUCTOR DATA / DESCRIPTION OF COMPONENTSDESCRIPTION OF COMPONENTSTX-RX Unit (A/2)Ref. No. Use / Function Operation / ConditionIC1 DC amp FC, TCXO controlIC2 DET amp External DEO, internal DEOIC3 Amp/Summing amp DI / DI and MO addtionIC4 Analog switch DI switchIC5 A/D converter PC, TV, FC, AFO, BEEP, TO, MOcontrolIC6 DC amp PC, TVIC7 Shift register HNC, H/L, TOF, CODE3, CODE4,PA, W/N controlIC8 Shift register AM, LOK, STR, DM, OPT, CODE1,CODE2, SQ controlIC9 5V AVR External 5CIC10 AF power ampIC11 FM IF DET Quadrature detector, 2nd mixer,OSC, IF amplifier, RSSIIC12 5V AVR 5CIC13 9V AVR 9CIC14 8V AVR 8CIC15 Flip-flop Power on/off controlIC200 Mixer DBMIC300 PLL Reference 16.8MHz.PLL lock : LD "H"IC400 Power module RF power 25WIC401 Short protectionQ1 DC switch R17 connection and, PTT "H" timeDI offQ2 Ripple filter 8CLQ3 Ripple filter 9CL (E version)Q4 HOR switch IGNQ5 HOR SW control IGNQ6 HOR SW control HNC "H" time onQ7 Buffer amp HTQ8 AF mute AM "H" time onQ9 AF mute Power off time onQ10 8R SW control TR "H" time onQ11 8R switch Q10 on time onQ12 8T switch Q13 on time onQ13 8T SW control KEY "H" time onQ15 IF amp 44.85MHzQ16 AF switch Wide time onQ17 PC switch TX (8T) time onQ18 DET mute KEY "H" time onQ19 APC APC driverQ20 APC APC pre-driverQ21 APC controlQ22 TOF switch TOF "H" time onQ23 W/N switch Wide time offQ24 W/N switch Wide time onQ25 TOF switch Q22 on time onQ26 Inverter Power switch "L" time on Terminal function (IC8)Pin No. Port Name Function1 STB ES Strobe2 SI DT DATA3 CLK CK Clock4 Q1 AM1 Audio mute 1. H : Mute, L : Unmute5 Q2 LOK Link complete.(Programmable active H/L)6 Q3 STR VCO shift switching. H : TX, L : RX7 Q4 DM Dead mute. H : RX, L : TX8 VSS GND9 QS IC7 data output10 NC11 Q8 SQ External squelch.(Programmable active H/L)12 Q7 CODE2 Option board data 2. H : ON, L : OFF13 Q6 CODE1 Option board data 1. H : ON, L : OFF14 Q5 OPT Option board control. H : OFF, L : ON /Auxiliary B. H : OFF, L : ON15 OE Output16 VDC +5V. Terminal function (IC7)Pin No. Port Name Function1 STB ES Strobe2 SI DT Data3 CLK CK Clock4 Q1 HORN Horn alert. H : ON, L : OFF /Auxiliary A. H : ON, L : OFF5 Q2 HL RF power switching. H : High, L : Low6 Q3 TIMOFF Timed power off. H : Power off7 Q4 CODE3 Option board data 1. H : ON, L : OFF8 VSS GND9 NC10 NC11 Q8 W/N Wide/Narrow switching.H : Wide, L : Narrow12 Q7 NC13 Q6 PA1 Public address 1. H : ON, L : OFF14 Q5 CODE4 Option board data 1. H : ON, L : OFF15 OE Output enable16 VDC +5V