NTE1700 Integrated Circuit 2, 4, & 6 Hour Auto Discriminator for VCR Description: The NTE1700 is an integrated circuit in an 18–Lead DIP type package designed for 2Hr/4Hr/6Hr automatic selection in video cassette recorders. Features: D The Functions Consist of: Capstan FG Frequency Divider Monostable Mulitvibrator Sample & Hold Circuit D Supply Voltage Either 9V or 12V Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13V Power Dissipation (TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Electrical Characteristics: (VCC = V14–1 = 12V, TA = +25°C ±2°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Supply Current I14 24 – 40 mA Input Blind Level V2 – – 150 mVP–P Playback Control Amp Sensitivity S2 350 – – mVP–P X9 Select Sensitivity S3 SW. A to 1 3.3 – – V X2 Select Sensitivity S4–1 SW. A to 2 5.5 – – V 1/2 Slow Select Sensitivity S4–2 SW. A to 3 – – 1.45 V Triangular Wave Reference Voltage V7 V6–1 = 0, from Pin7 30kΩ to GND 2.9 – 3.6 V Pause “L” Voltage V11 V5–1 = 7V, V10–1 = 5.5V 3.3 – 4.1 V SW. to 1 1.85 – 2.15 V VO(C–11) SW. to 3 3.25 – 3.80 V 6.25 – 7.15 V S/H Output Voltage VOL11 VOH11 SW. to 2 Note 1. Operating Supply Voltage: VCC(opr) = 8.5V to 12.5V Electrical Characteristics (Cont’d): (VCC = V14–1 = 12V, TA = +25°C ±2°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 2H Select Sensitivity S12–1 V13–1 = 3.3V, SW. to 1 5.5 – – V 4H Select Sensitivity S12–2 V13–1 = 3.3V, SW. to 2 2.4 – 3.8 V 6H Select Sensitivity S12–3 V13–1 = 3.3V, SW. to 3 – – 1.45 V 3.3 – – V Record Select Sensitivity S13 A Output “H” Voltage V15H I15–1 = –3mA, V12–1 = 1.45V, V13–1 = 3.3V 10 – – V A Output “L” Voltage V15L I15–1 = 5mA, V12–1 = 5.5V, V13–1 = 3.3V – – 0.55 V B Output “H” Voltage V16H I16–1 = –3mA, V12–1 = 1.45V, V13–1 = 3.3V 10 – – V B Output “L” Voltage V16L I16–1 = 5mA, V12–1 = 5.5V, V13–1 = 3.3V – – 0.55 V Muting Output “H” Voltage V18H 5.2 – – V Muting Output “L” Voltage V18L – – 0.2 V A Schmitting Output “H” Voltage VOH(A) 5.6 – 6.5 V A Schmitting Output “L” Voltage VOL(A) 2.8 – 3.4 V B Schmitting Output “H” Voltage VOH(B) 4.15 – 4.8 V B Schmitting Output “L” Voltage VOL(B) 2.8 – 3.4 V Note 1. Operating Supply Voltage: VCC(opr) = 8.5V to 12.5V Pin Connection Diagram GND 1 PB Control Signal Input 2 X9 Select 3 X2, Normal, 1/2 Select 4 Sample Pulse 5 Triangle Wave C 6 Triangle Wave R 7 18 Muting Output 17 Muting C, R 16 B Output 15 A Output 14 VCC 13 Rec/PB Select 12 2/4/6 Hour Select Sample Hold 8 11 L.P.F. Signal Detect 9 10 Pause L 18 10 1 9 .870 (22.1) Max .250 (6.35) .150 (3.8) .100 (2.54) .800 (20.3) .125 (3.17) Min