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| MITSUMI NTSC/PAL Encoder MM1394 NTSC/PAL Encoder Monolithic IC MM1394 Outline This is an encoder IC that converts luminance signal Y, color difference signals R-Y and B-Y to composite video signals and RGB signals. Features 1. Operates on 5V single power supply 2. Low power consumption (265mW : video output ON) (165mW : video output OFF) 3. Supports both NTSC and PAL formats 4. Built-in 75 drive output (RGB output, composite output) 5. BPF and DELAY filters built-in 6. Built-in oscillator for subcarrier 7. Built-in video output ON/OFF circuit Package SOP-24 Applications 1. Game equipment 2. Digital cameras 3. Other video equipment MITSUMI NTSC/PAL Encoder MM1394 Block Diagram Pin Assignment 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 SOP-24 1 2 3 4 5 6 7 8 GND1 R-Y IN B-Y IN Y+S IN X' tal OUT X' tal IN NTSC/PAL NC 9 10 11 12 13 14 15 16 NC SYNC IN NC VCC1 Iref Vref NC NC 17 18 19 20 21 22 23 24 VIDEO OUT ON/OFF f0 VCC2 VIDEO OUT B OUT G OUT R OUT GND2 MITSUMI NTSC/PAL Encoder MM1394 Pin Description Pin no. 1 2 3 4 Pin name GND1 R-YIN B-YIN Y+SIN Input pins. Maximum input voltage : R-Y 1.00VP-P B-Y 1.27VP-P Y+S 1.00VP-P (SYNC is 0.286VP-P) DC level for clamp is 2.2V. Function Internal equivalent circuit diagram 5 X' tal OUT Oscillator circuit output pin 6 X' tal in Subcarrier input pin Input a 0.4~1.0VP-P sine wave. 7 NTSC/PAL Mode setting pin NTSC : VCC PAL : PAL MITSUMI NTSC/PAL Encoder MM1394 Pin no. 8 9 10 Pin name NC SYNC IN OPEN Function Internal equivalent circuit diagram Composite sync signal input pin 11 12 13 NC VCC1 Iref OPEN Determines internal reference current. Connect a 47k resistor between this pin and GND. 14 Vref Internal reference voltage pin Reference voltage : 4V Connect a 10F capacitor between this pin and GND. 15 16 NC OPEN MITSUMI NTSC/PAL Encoder MM1394 Pin no. 17 Pin name VIDEO OUT ON/OFF Function Turns VIDEO output ON/OFF VIDEO output ON : GND OFF : VCC Internal equivalent circuit diagram 18 f0 Determines f0 for filter and delay circuits. NTSC : 20k PAL : 16k 19 20 VCC2 VIDEO OUT Output stage power supply Composite video signal output pin Can drive 75 load. 21 22 23 BOUT GOUT BOUT RGB signal output pin 24 GND2 Output stage GND MITSUMI NTSC/PAL Encoder MM1394 Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Allowable loss (Ta=25C) Symbol TSTG TOPR VCC max. Pd Ratings -40~+125 -20~+75 +7 450 Units C C V mW Recommended Operating Conditions Item Operating temperature Operating power supply Symbol TOPR VOPR Ratings -20~+75 4.75~5.25 Units C V Electrical Characteristics Item Consumption current 1 Consumption current 2 RGB output characteristics R output voltage G output voltage B output voltage Rf characteristic Gf characteristic Bf characteristic Red-1 level ratio Red-1 phase Red-2 level ratio Red-2 phase Green-1 level ratio Green-1 phase Green-2 level ratio Green-2 phase Blue-1 level ratio Blue-1 phase Blue-2 level ratio Blue-2 phase NTSC / PAL Burst position Burst width Carrier leak Oscillation circuit Gain Phase (Except where noted otherwise, Ta=25C, VCC=5.0V) Measurement pin Measurement conditions SW conditions SW (S1,S2,S3,S4,S5,S6,S7) V4 : SG6 V5 : SG8 SW (0, 0, 0, 0, 0, 0, 0) V4 : SG6 V5 : SG8 SW (0, 0, 0, 0, 0, 1, 0) V1 : SG3 V2 : SG4 V3 : SG5 SW (1, 0, 0, 0, 0, 0, 0) V3 : SG2/SG1 V4 : SG6 SW (1, 1, 0, 0, 1, 0, 0) R, B frequency response Va=2.0V G frequency response Va=2.9V Symbol ICC1 ICC2 VR VG VB fR fG fB CL (R1) CP (R1) CL (R2) CP (R2) CL (G1) CP (G1) CL (G2) CP (G2) CL (B1) CP (B1) CL (B2) CP (B2) td tw VL Min. Typ. Max. Units 23 14 33 20 43 26 mA mA D C B D C B 0.64 0.71 0.78 VP-P -3.0 1 2.62 94 2.62 2.46 2.46 231 2.46 109 1.87 337 1.87 3 dB 2.92 104 2.92 2.56 2.74 241 2.74 119 2.08 347 2.08 13 0.6 2.55 3.21 114 3.21 2.66 3.02 251 3.02 129 2.29 357 2.29 23 0.75 3.0 30 * deg deg deg deg deg deg S S mVP-P A A A V1 : SG3 V2 : SG4 V3 : SG5 V4 : SG6 V5 : SG8 6 SW (1, 0, 0, 0, 0, 0, 0) V1, 2, 3 : no signal V4 : SG6 V5 : SG8 SW (1, 0, 0, 0, 0, 0, 0) 7 0.4 2.3 * * Gain E P V1, 2, 3 : no signal V4 : SG9 V5 : SG8 SW (1, 0, 0, 0, 0, 0, 0) 8.5 9.5 65 10.5 dB deg MITSUMI NTSC/PAL Encoder MM1394 Input Conditions Symbol SG1 SG2 SG3 SG4 SG5 SG6 SG7 SG8 SG9 SG10 Signal sine wave 0.7VP-P f=200kHz sine wave 0.7VP-P f=5kHz color bar R-Y signal 1VP-P color bar B-Y signal 1.27VP-P color bar Y+S signal 1VP-P sine wave 0.5VP-P f=3.58MHz sine wave 0.5VP-P f=4.43MHz 0.8V-2.0V composite sync signal sine wave 30mVP-P f=4.43MHz white signal 1161RE 0.500 SG3 0.0 -0.421 -0.079 0.636 SG4 0.0 -0.421 0.714 0.443 -0.214 SG5 0.0 -0.286 0.252 0.054 0.0 0.126 SG8 2.0 4.5S 84S Note 1 : 1 Frequency response is calculated at 20Log (5MHz output voltage/200kHz output 5MHz). * * Note 2 : 2 Luminance level measurement YL (W) YL (G) YL (R) YL (B) Y (S) Note 3 : 3 Frequency response is calculated at 20Log (5MHz output voltage/200kHz output 5MHz). * MITSUMI NTSC/PAL Encoder MM1394 Note 4 : 4 Chroma signal measurement (NTSC mode) Chroma level ratio is the ratio between each color signal level and burst signal level. Each color phase is 180 from burst signal phase (given B-Y axis as 0). * CL (g) CL (r) CL (bu) CL (b) CL(r) CL(R)= -------- CL(b) CL(g) CL(R)= -------- CL(b) CL(bu) CL(R)= -------- CL(b) Note 5 : 5 Chroma signal measurement (PAL mode) Assume burst 135 side signal as color-1, and burst 225 side signal as color-2. Phase measurement is done assuming the middle of burst-1 and burst-2 phase as 180 (given BY axis as 0). * R-Y axis Burst-1 1 2 CL (g) B-Y axis CL (b) CL (r) CL (bu) CL(r) CL(R)= -------- CL(b) CL(g) CL(R)= -------- CL(b) CL(bu) CL(R)= -------- CL(b) Burst-2 Note 6 : 6 Burst signal * VIDEO OUT td tw Note 7 : 7 3.58MHz component level for RGB input no signal. * Burst EVEN ODD Note 8 : 8 Input dynamic range measurement Input the signal shown below and measure video output sync level. Sync level between 0.26~0.33V is acceptable. * 52.15S 0.829V (1161RE) SG10 -0.286V 4.88S 63.56S MITSUMI NTSC/PAL Encoder MM1394 Measuring Circuit SW conditions : SW status in the circuit diagram below is SW (0,0,0,0,0,0,0). MITSUMI NTSC/PAL Encoder MM1394 Application Circuits NTSC mode MITSUMI NTSC/PAL Encoder MM1394 Application Circuits PAL mode |
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