MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [GENERAL DESCRIPTION] pin configuration fref / IDENT 1 16 CVBS IN BELL OUT 2 15 SAND IN Vcc 3 14 BLACK ADJ. R BAND GAP 4 13 PLL auto 1 SACAM KILLER OUT 5 12 PLL auto2 GND 6 11 BLACK ADJ. B BELL ref. 7 10 - (B - Y ) OUT PLL ref. 8 9 - (R - Y ) OUT [FEATURES] 16 PIN DIL PLASTIC PACKAGE • Fully integrated filters • No adjustment • Few external compornents • Used with a switched capacitor baseband delay line [STRUCRURE] M52325AP The M52325AP is designed for SECAM chrominance decoding.The IC should preferably be used in conjunction with PAL / NTSC signal processor M52340SP and the switched capacitor baseband delay line. It consists of a bell filter,a demodulator and an identification circuit. The IC needs no adjustment and few external components are required. A signal with highly stable reference frequency is required for the calibration, and a three - level sandcastle pulse for blanking and burst gating. [APPLICATION] Bipolar Silicon Monolithic IC SECAM Color Television 16 PIN DIL PLASTIC PACKAGE [QUICK REFERENCE DATA] SYMBOL PARAMETER MIN. TYP. MAX. UNIT Vcc positive power supply pin3 7.5 8.0 8.5 V Icc supply current pin3 18 24 30 mA VDR input dynamic range pin16 - 1.0 1.4 Vp-p VR-Y -(R-Y) output voltage amplitude (peak to peak value) ;pin9 0.85 1.00 1.15 Vp-p VB-Y -(B-Y) output voltage amplitude (peak to peak value) ;pin10 1.10 1.24 1.43 Vp-p MITSUBISHI 1 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER 2 12 13 + 0.1µF PLL auto2 PLL auto1 22µF Vcc=8.0V 0.1µ F BELL OUT 3 BAND GAP 4 BANDGAP 16 BELL ref. 0.47µ F 7 ACC BELL FILTER BELL TUNING 1 PLL DEEMPHASIS IDENT PLL TUNING INTERFACE fref / IDENT AMP 5 KILLER OUT 8 PLL ref. SECAM B-Y OUTPUT 10 -(B-Y) R-Y OUTPUT 9 15 -(R-Y) OUT 11 BLACK ADJ. B 14 6 SAND IN OUT SW. PULSE GEN. 0.47µ F CVBS IN GND BLACK ADJ. R fig.1 M52325AP block diagram 3.85V SAND IN detection level 2.0V pin 15 SAND IN 1.25V pin 1 fref / IDENT BGP : 3.85V HBLK : 2.0V VBLK : 1.25V fref = 4.433619MHz 0.2~0.5Vp-p 4.0VDC at SECAM 1.5VDC at no SECAM pin 9 -(R-Y) OUT pin 10 -(B-Y) OUT fig.2 timing waveforms MITSUBISHI 2 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [Absolute Maximum Rating] (unless otherwise specified Ta = 25°C,surge capacitor is 200pF) SYMBOL PARAMETER MIN. MAX. UNIT Vcc positive power supply - 11 V Pd total power dissipation - 1.09 W Topr operating ambient temperature range -20 +75 °C Tstg storage temperature range -40 +125 °C ±200 - V Vsurge surge voltage power dissipation Pd [mW] 1500 1000 500 0 0 25 50 75 100 125 150 Ambient Temperature Ta [°C] fig.3 package thermal derating curve ( maximum rating ) MITSUBISHI 3 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [Note to Electrical Characteristics Measurement] This IC needs a three - level sandcastle pulse at pin 15. (see fig.4 ,fig5) And the reference signal should be highly stable for frequency and amplitude during the vertical blanking period. pin16 CVBS IN over 4.3V 2.5V pin15 SAND IN 0 2.6 8.7 [µsec] fig.4 sandcastle pulse over 4.5V 2.5V pin15 SAND IN 1.5V 1.8[msec] pin1 fref/IDENT fref=4.433619MHz fig.5 sandcastle pulse and fref signal MITSUBISHI 4 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [Electrical Characteristics] PARAMETER SYMBOL note a) unless otherwise specified ; Vcc=8.0V Ta = 25°C note b) unless otherwise specified ; input fref signal , pin 1 is HIGH(Vext1 = 4.75V), Vext16 = 4V CONDITIONS TEST PIN MIN. TYP. 3 7.5 8.0 8.5 V 3 18 24 30 mA MAX. UNIT positive power supply Vcc supply current Icc DC voltage pin2 V2 2 1.4 1.8 2.2 V DC voltage pin4 V4 4 4.1 4.27 4.5 V DC voltage pin11 V11 11 3.9 4.13 4.35 V DC voltage pin12 V12 12 4.5 4.9 5.5 V DC voltage pin13 V13 13 4.5 4.9 5.5 V DC voltage pin14 V14 14 4.0 4.20 4.4 V composite video input voltage (peak to peak value)* V16in 16 - 1.0 1.4 Vp-p chrominance input voltage(peak to peak value) * VCL 16 - 167 300 mVp-p input impedance Zin A: SG1 CVBS in note1 over f=4MHz note2 16 - 8 2 4.236 4.286 - KΩ BELL FILTER resonance frequency fBO band width fBW A: SG0 Vcc = 7.5~9.0 V note3 A: SG0 4.336 MHz 2 250 320 368 10 2.6 2.9 3.2 KHz DEMODULATER linearity output voltage amplitude (peak to peak value): -(R-Y) output voltage amplitude (peak to peak value): -(B-Y) VLIN A: SG1 VR-Y A: SG1 9 0.85 1.00 1.15 Vp-p VB-Y A: SG1 10 1.05 1.24 1.43 Vp-p - 1.10 1.24 1.36 9 -15 - +15 mV 10 -50 - +20 mV note4 ratio of - ( B-Y ) / - ( R-Y ) VB-Y/VR-Y calculated black level error - ( R-Y ) ∆VRB A: SG2 black level error - ( B-Y ) ∆VBB A: SG2 note5 note5 MITSUBISHI 5 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER PARAMETER output DC voltage during blanking signal to noise ratio output bandwidth * * pole frequency of * de-emphasis LPF ratio of pole and zero * frequency residual harmonic voltage (peak to peak value) output impedance at SECAM output impedance at no SECAM * * * SYMBOL CONDITIONS Vo A: SG1 S/N BWO TEST PIN MIN. TYP. 9 10 2.1 2.8 3.5 V 10 40 - - dB 10 - 1.5 - MHz 72 85 98 KHz - 3 - 10 - 5.2 15 mV 9 10 - 200 600 Ω 9 10 1 - MΩ fp fp/fo A: SG2 Vhc pin 1 HIGH (Vext1 = 4.75V) Zo1 Zo2 PIN1 LOW (Vext1 = 2.25V) - MAX. UNIT SANDCASTLE PULSE vertical blanking detection level VVB 15 1.0 1.25 1.4 V horizontal blanking detection level VHB 15 1.75 2.0 2.25 V burst gate detection level VBG 15 3.5 3.85 4.2 V note 6 4.2 4.5 4.8 µsec note 7 0 0.2 0.5 µsec - MHz rising edge of internal * burst gate pulse falling edge of internal burst gate pulse * Tr Tf REFERENCE / IDENTIFICATION reference frequency fref reference voltage amplitude (peak to peak value) Vref system switches detection level at SECAM system switches detection level at no SECAM note 8 note 8 VTH1 VTH2 Vext1 = attenuate DC voltage 1 1 - 4.4336 0.20 - 0.57 Vp-p 1 - 2.9 3.3 V 1 1.5 2.0 - V Vext5 = 1.5V sw5 : on 1 125 180 235 µA Vext1 = attenuate DC voltage note 9 sink current at SECAM IS pin5 voltage at SECAM V5S A: SG1 5 2.4 3.1 3.6 V V5NS A: - 5 - - 0.2 V I/K A: SG1 attenuate amplitude 5 -46 -38 -32 dB pin5 voltage at no SECAM sensitivity of identification and killer note10 note * : These characteristics are for reference , and not guaranteed the limiting value. MITSUBISHI 6 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [Input Signals] SG No. signal conditions SG0 f = 4.0~5.0MHz sweep signal amplitude : 20 mVp-p SG1 100/75 color bar B-Y burst signal fOB amplitude : 167 mVp-p = 0dB SG2 black/white signal B-Y burst signal fOB amplitude : 167 mVp-p = 0dB SCP three - level sandcastle pulse see fig4 , fig5 fref f = 4.433619MHz during vertical blanking see fig4 , fig5 amplitude : 300mVp-p MITSUBISHI 7 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [Note to the characteristics] 1. If measured in the burst period of a blue line. a b 2. Pin 16 is AC - coupled. Defined the impedance over f = 4MHz. 3. Measure except during the vertical blanking and burst gate pulse. An use of an active probe is advised for low capacitive loading. fig.6 C 4. Defined as VLIN = b / a ; see fig.6 V2 V1 5. Measure the difference voltage between the blanking(V1) and the black(V2) level . Defined as ∆VRB(∆VBB) = V2-V1 ; see fig.7 6. Defined as the time from rising edge detection of PAL burst gate pulse at pin15.(internal) fig.7 7. Defined as the time from falling edge detection of PAL burst gate pulse at pin15.(internal) 8. The reference signal should be stable during the vertical blanking. 9. The external supply voltage at pin1 should be exceed 0.5V. 10. Defined as the ratio between VK (i.e. the peak to peak value of the burst period of a blue line) when LOW (0 .2 V) at pin5, and 167 mVp-p the peak to peak value of the burst period of a blue line. I / K = 20 * log10 (Vk / 167 mVp-p) (dB) MITSUBISHI 8 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER 10µF + SCP 2SC603 2KΩ 5KΩ A 0.1µ F Vext16 =4V 16 15 14 13 12 11 10 9 6 7 8 M52325AP 8.2KΩ Vext1 5KΩ 2SC603 5 sw5 Vext5 =1.5V 0.47µF fref 150pF + 4 0.47µF 3 22µF Vcc 2 0.1µF 1 Vcc=8.0V fig.8 measurement circuit diagram MITSUBISHI 9 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [Terminal Description] DC VOLTAGE Vcc for the reference input, PAL system identification input, and SECAM killer signal output. SECAM killer 180µA typ. at SECAM 0µA typ. at no SECAM 300µA 2.8V 1 2K 1 fref / IDENT EQUIVALENT CIRCUIT system switches detection level ; 2.9V 4.3V 20K DESCRIPTION 10p SYMBOL 18K 2K PIN NUMBER 100µA Vcc positive power supply 8V band gap reference voltage output Vcc 4.3V 4.3V - 2K 13K 100 5 15.1K 5 KILLER OUT SECAM killer output 3.1V at SECAM 0V at no SECAM 4 1.8K BAND GAP 9K 4 2 12.6K Vcc 1.7V 2K 3 bell filter output 20K BELL out 2K 2 6 GND ground MITSUBISHI 10 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER PIN NUMBER SYMBOL DESCRIPTION DC VOLTAGE EQUIVALENT CIRCUIT bell reference filter 7 BELL ref. The capacitor should be connected to the ground pin as close as possible to the package. 7 3.3V 100 20K PLL reference filter 8 PLL ref. The capacitor should be connected to the ground pin as close as possible to the package. 100 µA 100 µA 8 4.3V 200 µA -(R-Y) output 9 2.8V - ( R - Y ) OUT 9 1.00Vp-p at 100/75 color bar 230µA -(B-Y) output 10 - ( B - Y ) OUT 1.24Vp-p at 100/75 color bar 2.8V 10 230µA 14 Black level error can be adjusted by external dc voltage. 225 4.16V 1.11K BLACK ADJ. B 4.3V 13.6K 11 4 670 black level reference for -(B-Y) 11 MITSUBISHI 11 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER PIN NUMBER SYMBOL DESCRIPTION DC VOLTAGE EQUIVALENT CIRCUIT 13 12 PLL adjust voltage output2 12 PLL auto2 Capacitor between pin 12 and pin13 improves color S/N. Value of Capacitor is 0.1uFtyp. 5.0V 200 µA 200 µA 13 12 PLL adjust voltage output1 13 PLL auto1 Capacitor between pin 12 and pin13 improves color S/N. Value of Capacitor is 0.1uFtyp. 5.0V 200 µA 14 225 1.11K Black level error can be adjusted by external dc voltage. 4.3V 4.28V 13.6K BLACK ADJ. B 4 670 black level reference for -(R-Y) 14 200 µA 11 50µ 15 SAND IN three - level sandcastle pulse input 15 50µ 50µ 100 13p (2.05V) 200 µA MITSUBISHI 2.5K 8.1K CVBS IN 2.8V 8.1K 16 chrominance signal input 16 200 µA 100 µA 12 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [Marking] XXXXXX M52325AP Mark Lot No. Type Number Mitsubishi Marking [Material of Terminals and Package] Terminals Material : copper alloy Plating : solder Package Material : epoxy resin [Weight of IC] 1.0g [Notice] 1) Filters and demodulator are tuned during vertical blanking. So pin7 and pin8 are very sensitive to current leakage . The capacitor of pin 7 and pin8 should be low leakage and low drift type, and should be connected as close as possible to the ground pin of the package. 2) Black level error can be adjusted by tuning of variable resistors between pin 4 (or Vcc ,ground) to pin 11 and between pin4 (or Vcc ,ground) to pin 14. MITSUBISHI 13 - 13