NJM2264 3 - INPUT VIDEO SUPER IMPOSER WITH 75Ω DRIVER ■ GENERAL DESCRIPTION NJM2264 is 3-input, 1-output video switch with 75Ω driver circuit. One input is provided with sink chip clamp function, which adjusts the DC level of video signal. The other two inputs of transistor open base can make control of luminance signal. This video switch can be connected to TV monitor directly, as it has 75Ω driver circuit internally. NJM2264 is a high performance video switch which is operated with 5V supply voltage. ■ FEATURES ● Wide Operating Voltage (4.75V to 13V) ● 3 Input 1-Output ● Internal 75Ω Driver Circuit ● Internal Sink Chip Clamp Function (VIN1) ● Internal Luminance Signal Control Function (VIN2, VIN3) ● Crosstalk 70dB(at 4.43MHz) ● Wide Operating Frequency Range 10MHz (2VP-P input) ● Package Outline DIP8, DMP8, SIP8 ● Bipolar Technology ■ PACKAGE OUTLINE NJM2264D NJM2264M NJM2264L ■ APPLICATIONS ● VCR, Video Camera, AV-TV, Video Disc Player. ■ BLOCK DIAGRAM Ver.2004-02-17 -1- NJM2264 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER (Ta=25°C) SYMBOL RATINGS + Supply Voltage V Power Dissipation PD 15 UNIT V (DIP8) 500 mW (DMP8) 300 mW (SIP8) 800 mW Operating Temperature Range Topr -20 to +75 °C Storage Temperature Range Tstg -40 to +125 °C (V+=5V, Ta=25°C±2°C) ■ ELECTRICAL CHARACTERISTICS PARAMETERS SYMBOLS TEST CONDITIONS + MIN. TYP. MAX. UNIT 4.75 - 13.0 V - 16.5 23.0 mA Recommended Supply Voltage V Operating Current ICC S1 = S2 = S3 = S4 = S5 = 2 Voltage Gain GV VIN = 2.0VP-P, 100kHz, VO / VI -0.8 -0.3 +0.2 dB Frequency Characteristics Gf VIN = 2.0VP-P, VO (10MHz) / VO (100kHz) -1.0 0 +1.0 dB Differential Gain DG VIN = 2.0V P-P, Staircase, RL = 150Ω - 0.3 - % Differential Phase DP VIN = 2.0V P-P, Staircase, RL = 150Ω - 0.3 - deg VI = 2.0V P-P, 4.43MHz - - - - Crosstalk CT Switch Change Voltage VO / VI - -70 - dB VIN2 VIN3 Biased (Note 2) - - - - VCH Switch High Level Voltage 2.4 - - V VCL Switch Low Level Voltage - - 0.8 V Note 1) Unless otherwise specified, tested with the following conditions. a) S1 = 1, S2 = S3 = S4 = S5 = 2 b) S2 = S4 = 1, S1 = S3 = S5 = 2 c) S3 = S5 = 1, S1 = S2 = 1, S4 = 1 and 2 Note 2) Tested with the following conditions. a) S1 = S4 = 1, S2 = S3 = 2, S5 = 1 and 2 b) S2 =1, S1 = S3 = S4 = 2, S5 = 1 and 2 c) S3 = 1, S1 = S2 = S5 = 2, S4 = 1 and 2 + + Note 3) The Clamp Input Voltage of Vin is approximately (2.0×V ) / 5(In case of V = 5V, about 2.0V). ■ SWITCH CONTROL SIGNAL - OUTPUT SIGNAL SW1 SW2 OUTPUT SIGNAL L L VIN1 H L VIN2 L/H H VIN3 -2- Ver.2004-02-17 NJM2264 ■ TEST CIRCUIT ■ APPLICATION Oscillation Prevention on light loading conditions Recommended under circuit. Ver.2004-02-17 -3- NJM2264 ■ EQUIVALENT CIRCUIT PIN NO. PIN FUNCTION 1 PIN NO. PIN FUNCTION VIN1 5 VIN3 2 SW1 6 V 3 VIN2 7 VOUT 4 SW2 8 GND -4- INSIDE EQUIVALENT CIRCUIT INSIDE EQUIVALENT CIRCUIT + Ver.2004-02-17 NJM2264 ■ APPLICATION This IC requires 1MΩ resistance between INPUT and GND pin for clamp type input since the minute current causes an unstable pin voltage. This IC requires 0.1uF capacitor between INPUT and GND, 1MΩ resistance between INPUT and GND for clamp type input at mute mode. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Ver.2004-02-17 -5-