NTE1233 Integrated Circuit Frequency Synthesizer Description: The NTE1233 consists of a crystal oscillator, 10 bit divider, phase comparator and a programmable divided−by−N 9 bit counter constructed with complementary MOS device in one chip monolithic structure. This device has been designed for use in frequency synthesizers and phase locked loop applications for CB transceiver requiring low power dissipation and high noise immunity. Absolute Maximum Ratings: (TA = +25°C, unless otherwise specified) Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 to +7V Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 to VDD +0.3 Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mW Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C Electrical Characteristics: (TA = +25°C, unless otherwise specified) Parameter Operating Supply Voltage Range Supply Current Symbol Test Conditions VDD IDD N = 256 Min Typ Max Unit 5.0 − 6.5 V − − 9 mA 4.0 − − MHz Prog. Divder Input Frequency Max. FMAX(P) Ref. Frequency Input Max. FMAX(R) 10.24 − − MHz Prog. Divider Input Voltage VPIN 1.0 − − Vp−p Ref. Divider Input Voltage VRIN 1.5 − − Vp−p High Level Output Current (DO) IOH VOH = 4.0V −0.5 − − mA Low Level Output Current (DO) IOL VOL = 1.0V 0.5 − − mA High Level Output Current (LD) IOH(LD) VOH = 4.0V −0.5 − − mA VDD = 4.5V Pin Connection Diagram VDD 1 16 VSS Fin 2 15 P0 Qin 3 14 P1 FS 4 13 P2 DØ 5 12 P3 LD 6 11 P4 P8 7 10 P5 P7 8 9 P6 16 9 .260 (6.6) Max 1 8 .300 (7.62) .785 (19.9) Max .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7)