NJM2244D

NJM2244 3-INPUT VIDEO SWITCH WITH 75Ω DRIVER ■ GENERAL DESCRIPTION The NJM2244 is a three input integrated video switch witch selects one video or audio signal from three input signals. It contains driver circuit for 75Ω load and is able to connect to TV monitor. Its operating supply voltage range is 5 to 12v and bandwidth is 10MHz. Crosstalk is 70dB (at 4.43MHZ). NJM2244 contains clamp function and it can be operated while setting DC level fixed in position of the video signal. ■ FEATURES • Operating Voltage 4.75 to 13V • 3 input-1 Output • Internal Driver Circuit for 75Ω Impedance • Muting Function available • Internal Clamp Function • Low power Dissipation 16.5mA • Cross-talk 70dB (at 4.43MHz) • Wide Frequency Range 10MHz (2VP-P Input) • Package Outline DIP8, DMP8, SIP8 • Bipolar Technology ■ APPLICATION • VCR Video Camera AV-TV Video Disc Player ■ PIN CONFIGURATION ■ BLOCK DIAGRAM Pin Connection NJM2244D NJM2244M ■ PACKAGE OUTLINE NJM2244D NJM2244M NJM2244L NJM2244L ■ INPUT CONTROL SIGNAL-OUTPUT SIGNAL SW1 SW2 OUTPUT SIGNAL L L VIN1 H L VIN2 L/H H VIN3 note): Input clamp Voltage is about 2/5 of Supply Voltage Ver.2004-02-17 -1- NJM2244 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER (Ta = 25ºC) SYMBOL RATINGS + UNIT Supply Voltage V 15 V Power Dissipation PD (DIP8) 500 (DMP8) 300 (SIP8) 800 mW mW mW Operating Temperature Range Topr -20 to +75 ºC Storage Temperature Range Tstg -40 to +125 ºC (V+ = 5V, Ta = 25ºC) ■ ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL TEST CONDITION + MIN. TYP. MAX. UNIT 4.75 - 13.0 V Recommended Supply Voltage V Operating Current ICC S1 = S2 = S3 = S4 = S5 = 2 11.5 16.5 22.0 mA Voltage Gain GV Vin = 2.0VP-P, 100kHz, VO / Vi, RL = 150Ω -0.8 -0.3 +0.2 dB Frequency Characteristics Gf Vin = 2.0VP-P, VO (10MHz) / VO (100kHz), RL = 150Ω -1.0 - +1.0 dB Differential Gain DG Vin = 2.0VP-P, staircase, RL = 150Ω - 0.3 - % Differential Phase DP Vin = 2.0VP-P, staircase, RL = 150Ω - 0.3 - deg. Output Offset Voltage Voff S1 = S2 = S3 = 2, S5 = 1 → 2Vo : Voltage change - 0 ±30 mV Crosstalk CT Vin = 2VP-P, 4.43MHz, Vo / Vi - -70 - dB VCH All inside Sw : ON 2.4 - - V VCL All inside Sw : OFF - - 0.8 V Switch Change Voltage (note) Unless specified, tested with three mode below. a) S1 = 1, S2 = S3 = S4 = S5 = 2 b) S2 = S4 = 1, S1 = S3 = S5 = 2 c) S1 = S2 = 2, S3 = S5 = 1, S4 = 1 or 2 ■ APPLICATION Oscillation Prevention on light loading conditions Recommended under circuit -2- Ver.2004-02-17 NJM2244 ■ TEST CIRCUIT DC Voltage Each Terminal Typ. on Test Circuit Ta = 25ºC Terminal Name DC Voltage Ver.2004-02-17 VIN1 2 5 + V SW1 - VIN2 2 5 + V SW2 - VIN3 2 5 + V + V - 2 5 VOUT GND + - V -0.7 -3- NJM2244 ■ EQUIVALENT CIRCUIT PIN NO. PIN FUNCTION 1 PIN NO. PIN FUNCTION VIN1 5 VIN3 (Mute) 2 SW1 6 V 3 VIN2 7 VOUT 4 SW2 8 GND -4- INSIDE EQUIVALENT CIRCUIT INSIDE EQUIVALENT CIRCUIT + Ver.2004-02-17 NJM2244 ■ 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-