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 75Ω 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 NTSC/PAL Encoder MM1394 MITSUMI 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 GND1 9 NC 17 VIDEO OUT ON/OFF 2 R-Y IN 10 SYNC IN 18 f0 3 B-Y IN 11 NC 19 VCC2 4 Y+S IN 12 VCC1 20 VIDEO OUT 5 X' tal OUT 13 Iref 21 B OUT 6 X' tal IN 14 Vref 22 G OUT 7 NTSC/PAL 15 NC 23 R OUT 8 NC 16 NC 24 GND2 NTSC/PAL Encoder MM1394 MITSUMI Pin Description Pin no. Pin name Function 1 GND1 2 R-YIN Input pins. 3 B-YIN Maximum input voltage : 4 Y+SIN 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. 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 Internal equivalent circuit diagram NTSC/PAL Encoder MM1394 MITSUMI Pin no. 8 9 10 Pin name NC SYNC IN Function OPEN Composite sync signal input pin 11 NC 12 VCC1 13 Iref OPEN Determines internal reference current. Connect a 47kΩ resistor between this pin and GND. 14 Vref Internal reference voltage pin Reference voltage : 4V Connect a 10µF capacitor between this pin and GND. 15 16 NC OPEN Internal equivalent circuit diagram NTSC/PAL Encoder MM1394 MITSUMI Pin no. Pin name Function 17 VIDEO OUT Turns VIDEO output ON/OFF ON/OFF VIDEO output ON : GND OFF : VCC 18 f0 Determines f0 for filter and delay circuits. NTSC : 20k PAL : 16k 19 VCC2 Output stage power supply 20 VIDEO OUT Composite video signal output pin Can drive 75Ω load. 21 BOUT 22 GOUT 23 BOUT 24 GND2 RGB signal output pin Output stage GND Internal equivalent circuit diagram NTSC/PAL Encoder MM1394 MITSUMI Absolute Maximum Ratings (Ta=25°C) Item Storage temperature Operating temperature Power supply voltage Allowable loss Symbol TSTG TOPR VCC max. Pd Ratings -40~+125 -20~+75 +7 450 Units °C °C V mW Ratings -20~+75 4.75~5.25 Units °C V Recommended Operating Conditions Item Operating temperature Operating power supply Electrical Characteristics Symbol TOPR VOPR (Except where noted otherwise, Ta=25°C, VCC=5.0V) Measurement pin Item Symbol Consumption current 1 ICC1 Consumption current 2 ICC2 RGB output characteristics R output voltage G output voltage B output voltage Rf characteristic VR VG VB fR D C B D Gf characteristic fG C Bf characteristic fB B 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 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 Burst width tw Carrier leak VL Phase 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 A 23 33 43 mA 14 20 26 mA 0.64 0.71 0.78 VP-P -3.0 dB 2.92 104 2.92 2.56 2.74 241 2.74 119 2.08 347 2.08 13 3.21 114 3.21 2.66 3.02 251 3.02 129 2.29 357 2.29 23 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 0.6 0.75 µS 2.3 2.55 3.0 µS 30 mVP-P V1, 2, 3 : no signal V4 : SG9 V5 : SG8 SW (1, 0, 0, 0, 0, 0, 0) 8.5 10.5 dB * A Min. Typ. Max. Units 1 2.62 94 2.62 2.46 2.46 231 2.46 109 1.87 337 1.87 3 A * deg deg deg deg deg deg * Oscillation circuit Gain 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) Gain E P 9.5 65 deg NTSC/PAL Encoder MM1394 MITSUMI Input Conditions Symbol Signal SG1 sine wave 0.7VP-P f=200kHz SG2 sine wave 0.7VP-P f=5kHz SG3 color bar R-Y signal 1VP-P SG4 color bar B-Y signal 1.27VP-P SG5 color bar Y+S signal 1VP-P SG6 sine wave 0.5VP-P f=3.58MHz SG7 sine wave 0.5VP-P f=4.43MHz SG8 0.8V-2.0V composite sync signal SG9 sine wave 30mVP-P f=4.43MHz SG10 white signal 1161RE 0.500 SG3 0.0 -0.079 -0.421 0.636 SG4 0.0 -0.421 0.714 0.443 SG5 -0.214 0.252 0.054 0.126 0.0 0.0 -0.286 2.0 SG8 4.5µS 84µS 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). * NTSC/PAL Encoder MM1394 MITSUMI 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(r) CL(R)= ———— CL(b) CL (g) CL (r) CL (bu) 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 CL (g) 1 2 CL (r) CL (bu) B-Y axis CL(r) CL(R)= ———— CL(b) CL(g) CL(R)= ———— CL(b) CL(bu) CL(R)= ———— CL(b) CL (b) Burst-2 Note 6 : 6 Burst signal * VIDEO OUT tw td 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. * 52.15µS 0.829V (1161RE) SG10 -0.286V 4.88µS 63.56µS MITSUMI Measuring Circuit NTSC/PAL Encoder MM1394 SW conditions : SW status in the circuit diagram below is SW (0,0,0,0,0,0,0). MITSUMI Application Circuits NTSC mode NTSC/PAL Encoder MM1394 MITSUMI Application Circuits PAL mode NTSC/PAL Encoder MM1394