NTE1836 Integrated Circuit Electronic Channel Select System Control Description: The NTE1836 contains CPU/PLL–excluded peripheral circuits such as band switch, +5V power supply (with RST), sync detector, low–pass filter for color TV/VCR frequency synthesizer channel select system use. Functions: D Band Switch (2–Input, 4–Output) D Video Signal, Flyback Pulse, AFT Output–Used Detection of Tuning Mode and Horizontal Sync Mode D +5V Power Supply, with RST Output (for CPU) D OP Amp for Low–Pass Filter (for Frequency Synthesizer) Features: D The Band Switch Truth Table can be changed in a short period of time at the user’s option. D The Band Switch is of PNP output type which need not be driven externally. D The OP Amp for Low–Pass Filter is excellant in pulse response because of it’s High–Impedance Input Pin. Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Allowable Power Dissipation (TA ≤ +65°C), PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 770mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +65°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Band Switch Section VCC1 Maximum Supply Voltage, V13max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Maximum Load Current, I14, I15, I16, I17max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40mA Maximum Applied Voltage (Output OFF), V14, V15, V16, V17max . . . . . . . . . . . . . . . . . . . . . . . . . –15V Maximum Applied Voltage (Input, Vcc = 14V), V6max, V7max . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V +5V Power Supply Section VCC2 Maximum Supply Voltage, V10max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V +5V Output Current, I8max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30mA Maximum Ratings Cont’d): (TA = +25°C unless otherwise specified) Tuning Detector Section Maximum Input Voltage, V2max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5V Maximum Input Voltage (Negative Polarity), –V2max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.4V Maximum Comparator Difference Voltage, V19 – V20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Low–Pass Filter Section Maximum Applied Voltage, V12max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Maximum Input Voltage, V11max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.9V Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Parameter Symbol Min Typ Max Unit (VCC1) V10 9.0 12.0 14.0 V (VCC2) V13 9.0 12.0 14.0 I4, I5 – – 3 mA Load Current (LPF Section) I12 – 3 5 mA Comparator Voltage Setting Range (Tuning Detector Section) V19 2.7 – 7.0 V Supply Voltage Range Output Current (Tuning Detection Section) Electrical Characteristics: (TA = +25°C, VCC1 = 12V, VCC2 = 12V unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit – 16.0 – mA 0 – 0.7 V Band Switch Section Quiescent Current Dissipation Output Saturation Voltage ICC1 F1 to 4 sat IO = –40mA Input “H” Level Voltage V6TH, V7TH 2.2 – – V Input “L” Level Voltage V6TL, V7TL 0 – 0.8 V – – –50 µA – 3.6 – mA Output Leakage Current IFL –15V +5V Power Supply Section Quiescent Current Dissipation ICC2 +5V Output Voltage V8 I8 = –30mA 4.7 – 5.3 V RST Output Voltage V9sat I9 = –100µA 4.7 – 5.3 V Tuning Detection Section Input Threshold Voltage V2TH 0.6 0.72 1.5 V Comparator Voltage VC19 3.7 4.0 4.3 V Window Comparator “H” Voltage VCH 7.7 8.0 8.3 V Window Comparator “L” Voltage VCL 3.7 4.0 4.3 V Output Saturation Voltage V4sat Isink = 2mA 0 0.33 0.7 V V5sat Isink = 2mA 0 0.33 0.7 Low–Pass Filter Output Current IOL –1.85 –1.39 –1.12 mA LPF Section Output Saturation Voltage V12sat 0 – 0.3 V Input Threshold Voltage V11TH 2.0 – 2.4 V I11 – – 20 nA Input Current Band Switch Truth Table Input Output A B F1 F2 F3 F4 (Pin7) (Pin6) (Pin14) (Pin15) (Pin16) (Pin17) L L H Z Z Z H L Z H Z Z L H Z Z H Z H H Z Z Z H Z: High Impedance Operation of Tuning Detection Section Tuning Mode LPF Output Unsynchronized L Synchronized H AFT OUT1 OUT2 AFT–L L L AFT–C L L AFT–H L L AFT–L H L AFT–C H H AFT–H L H AFT–L: VAFT < VCL AFT–C: VCL < VAFT < VCH AFT–H: VAFT > VCH Pin Connection Diagram Sync Separator 1 20 LPF FBP 2 19 OP Amp Input AFT 3 18 GND Output 1 4 17 Bandswitch Output F4 Output 2 5 16 Bandswitch Output F3 Bandswitch Input B 6 15 Bandswitch Output F2 Bandswitch Input A 7 14 Bandswitch Output F1 + 5V Output 8 13 VCC 1 RST Output 9 VCC 2 10 12 Output to TV 11 PLL Input 20 11 .280 (7.12) Max 1 10 .300 (7.62) .995 (25.3) Max .280 (7.1) .100 (2.54) .125 (3.17) Min .385 (9.8)