NTE1536 Integrated Circuit CB Transceiver PLL Frequency Synthesizer Description: The NTE1536 is a CMOS LSI device for the 27MHZ Citizen’s Band Transceiver. Function: The NTE1536 composes a Phase Lock Loop (PLL) frequency synthesizer system with only one crystal for an AM CB transceiver. Features: D Only one crystal is required for AM CB transceiver. D Two types of intermediate frequency can be selected: IF1 = 10.695MHZ IF2 = 9.785MHZ D Two types of lock monitor outputs: LM: When PLL is locked/unlocked, LM is high/low level. LM: When PLL is locked/unlocked, LM is low/high level. D The amplifier for low pass filter. D The amplifier for programmable counter input. D The detecting circuit for the mis–programming. D BCD code input to the programmable counter. D The buffer output for the reference oscillator. D The output for the half frequency of the reference oscillator. D The reference frequency oscillation amplifier (with feedback resistance). Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, VDDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +9.0V Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to VDD+0.3V Output Voltage, VOUT (Unload) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to VDD+0.3V Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C Available Operation Conditions: (TA = +25°C, VDD = 7V ±1V unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Units Supply Voltage VDD 6.0 7.0 8.0 V High Level Input Voltage VIH VDD–1.5 – – V Low Level Input Voltage VIL – – 1.5 V Input Amplitude Input Frequency VIN (1) 10.25MHZ, Duty 50±10% Sine Wave 3.0 – 0.9VDD Vp–p VIN (2) 3.5MHZ, Duty 50±10% Sine Wave 0.7 – 0.66VDD Vp–p fIN (1) 3.0Vp–p, Duty 50±10% Sine Wave – – 10.25 MHZ fIN (2) 0.7Vp–p, Duty 50±10% Sine Wave – – 3.5 MHZ Electrical Characteristics: (TA = +25°C, VDD = 7V ±1V unless otherwise specified) Parameter Min Typ Max Units Rf (1) – 7.0 – MΩ Rf (2) – 3.0 – MΩ Pull–Down Resistance RP – 28 – kΩ Input Floating Voltage VIF Pin Opened – 1.0 – V 3 State Off Leak Current IOFF (1) VO = VDD/2 – 1.0 – nA Output Off Leak Current IOFF (2) VO = VDD – – 3.0 µA IOFF (3) VO = VSS – – 3.0 µA Feedback Resistance Symbol Test Conditions Input Current IIN VI = VDD, VI = VSS – 1.0 – nA Filter Amp Gain VG Rf = 1MΩ, fIN = 10kHZ, Rg = 600Ω – 28 – dB Low Level Output Voltage VOL IO = 2mA – – 0.9 V High Level Output Voltage VOH IO = 5mA VDD–0.9 – – V Dissipation Current IDD fIN (1) = 10.24MHZ, fIN (2) = 3.5MHZ, N = 182 – – 20 mA Pin Connection Diagram D1 1 20 VSS D2 2 19 AOUT D3 3 18 AIN D4 4 17 PD OUT D5 5 16 LM D6 6 15 LM IFS 7 14 PC IN T/R 8 13 1/2 R OUT VDD 9 12 R OUT X IN 10 11 X OUT Pin Functions D1 – D6 IFS T/R VDD X IN X OUT R OUT Program Input (BCD) D1: LSB, D6: MSB 10.695/9.785MHZ Sw TX/RX Sw Supply Voltage Crystal Oscillator Crystal Oscillator Buffer Output of Ref Osc 1/2 R OUT PC IN LM LM PD OUT AIN AOUT VSS 1/2 Freq of Ref Osc Programmable Divider Input Lock Monitor Output Lock Monitor Output Phase Detector Output Filter Amp Input Filter Amp Output GND 20 11 .339 (8.6) 1 10 1.063 (27.0) Max .400 (10.16) .200 (5.08) Max .100 (2.54) .100 (2.54) Min