NJM2277 VIDEO SWITCH MATRIX ■GENERAL DESCRIPTION ■ PACKAGE OUTLINE The NJM2277 is a Video switch for Set Top Box, and TV. The NJM2277 includes 2 CVBS input, 2-RGB input switches. Also it allow the inputs to be routed in 3 CVBS output, 1-RGB output. th The NJM2277 includes 5 -order Low pass Filter suppress the noise interference to video signal. The NJM2277 enable to control the Output Impedance for RGB outputs. NJM2277L NJM2277M ■FEATURES ● Operating Voltage ±5V ● 2- RGB Switches. ● 75Ω Cable Driver on all channels. ● 41dB Stop Band Rejection (@27MHz) ● Bipolar Technology ● Package Outline SDIP28, SDMP30 ● 2-Input,3-output CVBS Switches. th ● Quad 5 order Butter worth Low Pass Filter. ● High Impedance output for RGB signal. ■FUNCTION BLOCK DIAGRAM +Vcc GND 6dB 75Ω S_Comp Out1 6dB 75Ω S_Comp Out2 6dB 75Ω TV_Comp Out 6dB 75Ω FB_Out -VEE Comp_Sin Filter 2 to 1 Switch Comp_Vin FB_Sin 2 to 1 Switch FB_Vin R_Sin R_Vin G_Sin G_Vin B_Sin B_Vin A/B Mux High Z Cont 2 to 1 Switch Filter 6dB 75Ω Red Out 2 to 1 Switch Filter 6dB 75Ω Green Out 2 to 1 Switch Filter 6dB 75Ω Blue Out Switch Control Switch Control -1- NJM2277 ■ Pin Configuration (SDIP28) Fast Blanking Out 1 FB_out S_Comp Out2 28 STB Composite Video Out2 TV Composite Out 2 TV_Comp out S_Comp Out1 27 Power Supply 3 Vcc1 STB RED In 4 R_Sin Power Supply 5 VEE1 A/B Mux VTR RED In 6 R_Vin Comp_Vin GND 7 GND1 STB BLUE In 8 B_Sin Power Supply 9 B_Vin Power Supply VEE 11 High Z Cont 26 RGB Output Control Comp_Sin STB Composite Video In 24 Switch Matrix Control 23 VTR Composite Video In FB_Sin 21 STB Fast Blanking In Vcc2 20 Power Supply FB_Vin 19 VTR Fast Blanking In VEE2 18 Power Supply STB GREEN In 12 G_Sin Red Out 17 RED Out GND 13 GND2 Blue Out 16 VTR GREEN In 14 G_Vin Green Out 15 SDIP28 -2- 25 GND 22 GND Vcc VTR BLUE In 10 STB Composite Video Out1 BLUE Out Green Out NJM2277 ■ Pin Configuration (SDMP30) Fast Blanking Out 1 FB_out S_Comp Out2 30 STB Composite Video Out1 TV Composite Out 2 TV_Comp out S_Comp Out1 29 STB Composite Video Out2 Power Supply 3 Vcc1 High Z Cont 28 RGB Output Control STB RED In 4 R_Sin Comp_Sin 27 STB Composite Video In Power Supply1 5 VEE1 A/B Mux 26 Switch Matrix Control VTR RED In 6 R_Vin Comp_Vin 25 VTR Composite Video In GND 7 GND1 GND 24 GND STB BLUE In 8 B_Sin FB_Sin 23 STB Fast Blanking In Power Supply 9 Vcc Vcc2 22 Power Supply VTR BLUE In 10 B_Vin FB_Vin 21 VTR Fast Blanking In Power Supply 11 VEE VEE2 20 Power Supply No Connect 12 NC NC 19 No Connect STB GREEN In 13 G_Sin Red Out 18 RED Out GND 14 GND2 Blue Out 17 BLUE Out VTR GREEN In 15 G_Vin Green Out 16 Green Out SDMP30 -3- NJM2277 ■ Pin Description Symbol Pin No. I/O Type SDIP28 SDMP30 Equivalent Circuit Function VCC FB_out 1 1 Fast Blanking Output O VEE VCC TV_Comp out 2 2 Composite Video Signal Output O VEE Vcc1 3 3 _ _ Vcc VCC 400Ω R_Sin 4 4 RGB Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND -4- NJM2277 Pin No. Symbol I/O Type Equivalent Circuit Function _ _ VEE SDIP28 SDMP30 VEE1 5 5 VCC 400Ω R_Vin 6 6 RGB Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND GND1 7 7 _ _ 0 VCC 400Ω B_Sin 8 8 RGB Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND -5- NJM2277 Symbol Vcc Pin No. I/O Type SDIP28 SDMP30 9 9 Equivalent Circuit Function _ Vcc _ VCC 400Ω B_Vin 10 10 RGB Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND VEE 11 11 _ _ VEE VCC 400Ω G_Sin 12 13 RGB Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND -6- NJM2277 Symbol GND2 Pin No. I/O Type SDIP28 SDMP30 13 14 Equivalent Circuit Function _ 0 _ VCC 400Ω G_Vin 14 15 RGB Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND VCC Green Out 15 16 Filtered RGB Signal Output O VEE VCC Blue Out 16 17 Filtered RGB Signal Output O VEE -7- NJM2277 Symbol Pin No. SDIP28 SDMP30 I/O Type Equivalent Circuit Function VCC Red Out 17 18 Filtered RGB Signal Output O VEE VEE2 18 20 _ _ VEE VCC 400Ω FB_Vin 19 21 VTR/STB Fast Blanking Input I 100kΩ VEE GND Vcc2 -8- 20 22 _ _ Vcc NJM2277 Symbol Pin No. SDIP28 SDMP30 I/O Type Equivalent Circuit Function VCC 400Ω FB_Sin 21 23 VTR/STB Fast Blanking Input I 100kΩ VEE GND GND 22 24 _ _ 0 VCC 400Ω Comp_Vin 23 25 Video Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND VCC 400Ω A/B Mux 24 26 I 1kΩ Input Channel Selector 100kΩ VEE GND -9- NJM2277 Symbol Pin No. I/O Type SDIP28 SDMP30 Equivalent Circuit Function VCC 400Ω Comp_Sin 25 27 Video Signal Input CVBS/Y/C Signal Input I 100kΩ VEE GND VCC RGB Output Impedance Control “0”= High Impedance “1”= Through 400Ω High_Z Cont 26 28 I 1kΩ 100kΩ VEE GND VCC S_Comp Out1 27 29 Filtered Video Signal Output O VEE VCC S_Comp Out2 28 30 Filtered Video Signal Output O VEE - 10 - NJM2277 ■ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL + Supply Voltage V Power Dissipation PD RATING UNIT V mW °C Operating Temperature Range Topr 15 (SDIP28) 700 (SDMP30) 700 -40 to +85 Storage Temperature Range Tstg -40 to +125 °C ■ELECTRICAL CHARACTERISTICS ( Ta=25°C, Vcc=5.0V,VEE=-5V) PARAMETER SYMBOL TEST CONDITION + Operating Voltage V Supply Current Icc No Signal,No Loard MIN. TYP. MAX. UNIT ±4.5 ±5.0 ±5.5 V 36 46 56 mA ●Video system( Ta=25°C, Vcc=5.0V,VEE=-5V, RL=150Ω unless otherwise specified.) PARAMETER Gain SYMBOL GV TEST CONDITION Vin=1.0Vp-p 100KHz S_Comp Out1/2,TV_Comp Out Red/Green/Blue Out Vin=1.0Vp-p 5MHz /100KHz All filtered channel f=100KHz/27MHz ,1Vp-p All filtered channel All filtered channel Gain Matching Between Red/Green/Blue Out f=1KHz, 1Vp-p input Vin=4.43MHz/1.0Vp-p One input to any other output f=4.43MHz/1Vp-p Mux input to output Vin=1Vp-p,10step Stairs-signal except FBout Vin=1Vp-p,10step Stairs-signal except FBout All Channel High Z Cont=”0” Red/Green/Blue Output High Z Cont=”1” Red/Green/Blue Output , MIN TYP MAX UNIT 6.0 6.4 6.8 dB -1.0 0 1.0- dB -35 -41 - dB - 7.1 - MHz -5 0 5 % - 0.1 - % - -60 - dB - -60 - dB - 0.4 - % - 0.4 - deg - 50 - KΩ 10 20 - KΩ - 45 - mΩ Frequency Response Characteristics FBW Stop Band Rejection Fsb -3dB Bandwidth Fc RGB Gain matching level Gm Total Harmonic Distortion THD Cross talk1 CT1 Cross Talk2 CT2 Differential Gain DG Differential Phase DP Input Impedance Rin Output Impedance Ro1 Output Impedance Ro2 Equivalent Output Capacitance Co RGB output, High Z Cont=”0” - 3 - pF Group Delay Tpd Vin=1Vp-p, 100Khz All filtered Channel - 70 - nS - 11 - NJM2277 ■ELECTRICAL CHARACTERISTICS ( Ta=25°C, V=±5V) ● Fast Blanking ( Ta=25°C, Vcc=5.0V,VEE=-5V, RL=150Ω unless otherwise specified.) PARAMETER TEST CONDITION SYMBOL Fast Blanking Output Low Level Fast Blanking Output High Level Fast Blanking Delay FBlow FB S/Vin=0V FBhigh FB S/Vin=2Vp-p Ftpd MIN TYP 0 FB S/Vin=2Vp-p 100KHz MAX UNIT 0.4 V 2.0 3.8 - 25 - nS TYP MAX UNIT V ● Switch Contorl ( Ta=25°C, Vcc=5.0V, VEE=-5V, RL=150Ω unless otherwise specified.) PARAMETER SYMBOL A/B Mux Logic-High level Vihm A/B Mux Logic-Low level High Z Control Logic-High level High Z Control Logic-Low level Vilm TEST CONDITION MIN 2.0 0.8 Vihz 2.0 Vilz 0* TV Comp Video Out Comp_Vin FB Out FB _Vin OUTPUTS Red Out R_Vin Green Out G_Vin Blue Out B_Vin 1 Comp_Sin FB _Sin R_Sin G_Sin B_Sin * : Default setting High Z Cont : RGB Outputs Impedance Control Control Signal RGB Outputs Impedance 0* High Impedance 1 Through * : Default setting - 12 - V V 0.8 ● SWITCH CONTROL TABLE A/B Mux : Input Channel Selector Control Signal V V NJM2277 ■Measurement Circuit ( Ta=25°C, Vcc=5V,VEE=-5V) TP27 150Ω SW28 TP25 TP24 TP23 TP21 TP19 150Ω 150Ω SW27 TP27 TP28 150Ω SW17 SW16 Blue Out VEE2 Red Out FB_Vin VCC2 FB_Sin GND Comp_Vin A/B Mux Comp_Sin High Z Cont GND2 VEE G_Sin B_Vin S_Comp Out1 TP15 TP16 TP17 S_Comp Out2 SW15 Green Out 150Ω SDIP28 VCC SW30 TP30 TP27 TP14 VEE TP26 TP25 TP23 TP21 150Ω 150Ω SW18 SW29 TP29 SW17 SW16 Red Out NC VEE2 FB_Vin Vcc2 FB_Sin GND Comp_Vin A/B Mux Comp_Sin High Z Cont S_Comp Out1 TP18 S_Comp Out2 150Ω TP17 TP16 Green Out TP28 150Ω 150Ω TP12 Blue Out GND TP10 47uF + 47uF 0.47uF 0.47uF TP8 G_Vin TP6 + VCC TP4 B_Sin 150Ω GND1 SW2 R_Vin SW1 VEE1 TP2 150Ω R_Sin VCC1 TV_Comp Out FB_Out TP1 SDMP30 G_Vin TP13 GND2 G_Sin NC VCC TP10 VEE + 47uF 0.47uF TP8 B_Vin GND TP6 + Vcc 0.47uF TP4 B_Sin 150Ω GND1 SW2 R_Vin SW1 VEE1 TP2 150Ω R_Sin Vcc1 TV_Comp out FBout TP1 TP15 47uF VEE - 13 - NJM2277 ■Typical Characteristics Frequency Response ( Ta=25°C, Vcc=5V,VEE=-5V) 10 0 Gain [dB] -10 -20 -30 -40 -50 0.1 1 10 100 Frequency [MHz] Normalized Frequency Response ( Ta=25°C, Vcc=5V,VEE=-5V) 1 0 -1 Gain [dB] -2 -3 -4 -5 -6 0 .1 1 10 100 F re q u e n c y [M H z ] Group Delay ( Ta=25°C, Vcc=5V, VEE=-5V) 92 DELAY[nS] 88 84 80 76 72 0 2 4 6 Frequency[MHz] - 14 - 8 10 12 NJM2277 ■APPLICATION CIRCUIT (SDMP30) Mod Out CVBS/Y Fast Blank R/C ENCODER G B CVBS/Y 6dB 29 6dB 30 6dB 2 CVBS/Y 6dB 1 Fast Blank CVBS/Y Filer 27 25 19 15 23 20 CVBS/Y 21 16 Filter 4 16 Fast Blank 19 6dB 18 R/C 6dB 16 G 15 6 R/C Filter 13 15 11 G 7 Filter 8 7 6dB 10 B 11 17 B 26 TV SCART 28 VCR SCART (Note) When there is no offset voltage of input, it is possible to remove the capacitor of 4.7uF of an input. TV Fast Blanking Out TV Composite Out 75Ω 1 30 2 29 3 28 4 27 5 26 75Ω 75Ω Composite Video Out1 75Ω Composite Video Out2 VCC VCC ENCODER RED In 75Ω 4.7uF 75Ω 6 25 7 24 8 23 GND 75Ω ENCODER Fast Blanking In VCC VCC 9 SDMP30 22 4.7uF 75Ω VCR Fast Blanking In 10 75Ω VCR Composite Video In 4.7uF VCR BLUE In 75Ω Sw itch Matrix Control 4.7uF GND ENCODER BLUE In 75Ω VCC 4.7uF VCR RED In ENCODER Composite Video In 4.7uF VEE RGB Output Control 21 VEE 0.47uF VEE 11 20 47uF +5V VCC 75Ω + GND 12 ENCODER GREEN In 75Ω VCR GREEN In 19 + 13 18 14 17 -5V VEE 75Ω 4.7uF TV RED Out 0.47uF 47uF 75Ω GND TV BLUE Out 75Ω 4.7uF 15 16 TV Green Out 75Ω [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. - 15 -