Freescale Semiconductor, Inc. Technical Data MC44BC373C/D Rev. 3.1 7/2002 MC44BC373C/374C MC44BC373C/374C PLL Tuned UHF and VHF Audio/Video High Integration Modulator Freescale Semiconductor, Inc... SO16NB Package TSSOP16 Package Ordering Information Device Temp Range Package MC44BC373CD,R2 MC44BC374CD,R2 MC44BC373CDTB,R2 MC44BC374CDTB,R2 -20°C to +85°C -20°C to +85°C -20°C to +85°C -20°C to +85°C SO16NB SO16NB TSSOP16 TSSOP16 NOTE: For tape and reel, add R2 suffix. Contents List The modulators are for use in VCRs, set-top boxes, and similar devices. 1 2 3 4 5 6 Figure 1 shows the pin connections. Features . . . . . . . . . . . . . 2 Device Overview . . . . . . 3 Maximum Ratings . . . . . 4 Thermal Rating . . . . . . . 4 Electrostatic Discharge 4 Electrical Characteristics 5 7 I2C Bit Mapping . . . . . . . 6 8 I2C Programming . . . . . 7 9 Modulator High Frequency Characteristics 9 10 Video Characteristics . 10 11 Audio Characteristics . 11 12 Characterization Measurement Conditions 12 13 Modulator Description 17 14 High Speed I2C Compatible Bus 21 15 Pin Circuit Schematics 24 16 Application and Case Diagrams 25 SCL 1 16 GNDD SDA 2 15 VCCD LOP XTAL 3 14 PLLFLT 4 13 TVOVCC GND 5 12 TVOUT PREEM 6 11 GND AUDIO 7 10 VCCA SPLFLT 8 9 VIDEO Figure 1. MC44BC373C/4C Pin Connections This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. © Motorola, Inc., 2002. All rights reserved. For More Information On This Product, Go to: www.freescale.com Features Freescale Semiconductor, Inc. 1 Features MC44BC373C: Multi-Standard PAL/SECAM/NTSC Modulator MC44BC374C: PAL/NTSC only Modulator The channel is set by an on-chip high-speed I2C compatible bus receiver. A Phase-Locked Loop (PLL) tunes the modulator over the full UHF range. The modulator incorporates a sound subcarrier oscillator and uses a second PLL to derive 4.5, 5.5, 6.0, and 6.5MHz subcarrier frequencies. These frequencies are selectable using the bus. The modulation standard can be chosen using a control bit that selects between System L or System B/G (MC44BC373C only). Freescale Semiconductor, Inc... The picture-to-sound ratio may be adjusted using the bus. In addition, an on-chip video test pattern generator can be switched ON with a 1KHz audio test signal. The MC44BC373C/4C also has the following features: 2 • No external varicaps diodes/inductor or tuned components • Channel 21-69 UHF operation • VHF range possible by internal dividers (30MHz–450MHz) • Integrated on-chip programmable UHF oscillator • Extremely low external components count • High speed read and write I2C-bus compatible (800kHz) • Fixed video modulation depth (80% in PAL and 90% in SECAM) • Peak White Clip disabled via the bus • Programmable picture/sound carrier ratio (12dB and 16dB) • Integrated on-chip programmable sound subcarrier oscillator (4.5MHz to 6.5MHz)—No external varicaps • On-chip video test pattern generator with sound test signal (1kHz) • Low-power programmable modulator standby mode • Transient output inhibit during PLL Lock-up at power-ON • Logical Output Port controlled by bus • Custom masked versions with unique start-up settings possible (no I2C bus programming required) • Extremely robust ESD protection, minimum 4kV, typical 6kV MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Device Overview 2 Device Overview Figure 2 shows a simplified block diagram of the MC44BC373C/4C device. The MC44BC373C/4C device has three main sections: 1. A high speed I2C-compatible bus section 2. A PLL section to synthesize the UHF/VHF output channel frequency (from an integrated UHF oscillator, divided for VHF output) 3. A modulator section, which accepts audio and video inputs, then uses them to modulate the UHF/VHF carrier An on-chip video test pattern generator with an audio test signal is included. High frequency BiCMOS technology allows integration of the UHF tank circuit and certain filtering functions. LOP 3 VIDEO 9 Peak White Clip I2C BUS L /BG TVOUT 12 I2C BUS LPF Sound Modulator 1 SDA 2 High Speed I2C Bus Receiver Prog Divider LPF 7 AUDIO 6 PREEM ALC 11 GND AM UHF OSC Prescaler/8 Audio Amplifier L/BG AM Modulator Prog Divider 5 GND VCO and PLL SECTION VHF Dividers I2C BUS SCL Sound PFD Sound Oscillator and FM Modulator 10 VCCA FM BUS SECTION MODULATOR SECTION Clamp L/BG TVOVCC 13 LPF 75Ω SPLLFLT 8 31.25 kHz Video Modulator I2C BUS Freescale Semiconductor, Inc... The MC44BC373C operates as a multi-standard modulator and can handle the following systems using the same external circuit components: B/G, I, D/K, L, M/N. PLL Phase Comp I2C BUS Ref Divider /128 4MHz XCO 31.25KHz 15 16 14 VCCD GNDD PLLFLT 4 XTAL Figure 2. MC44BC373C/4C Simplified Block Diagram MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 3 Maximum Ratings Freescale Semiconductor, Inc. 3 Maximum Ratings Sym Vcc Parameter Value Unit Supply voltage 6 V Tamin Minimum operating ambient temperature –20 o Tamax Maximum operating ambient temperature 85 o C C Tstgmin Minimum storage temperature –65 oC Tstgmax Maximum storage temperature 150 o 150 °C Tj Junction Temperature C This device contains protection circuitry to guard against damage due to high static voltage or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high impedance circuit. For proper operation, input and output voltages should be constrained to the ranges indicated in the Recommended Operating Conditions. Maximum ratings are those values beyond which damage to the device may occur. For functional operation, values should be restricted to the Recommended Operating Condition. Freescale Semiconductor, Inc... Meets Moisture Sensitivity Level 1, no dry pack required 4 Thermal Rating Sym Rthja Parameter Value Unit 140 °C/W Min Typ Unit Thermal resistance from Junction to Ambient 5 Electrostatic Discharge Electrostatic Discharge (ESD) tests are done on all pins. Sym 4 Parameter ESD MM (Machine Model) - MIL STD 883C method 3015-7 200 500 V ESD HBM (Human Body Model) - MIL STD 883C method 3015-7 4000 6000 V MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Electrical Characteristics 6 Electrical Characteristics • A = 100% tested • B = 100% Correlation tested • C = Characterized on samples • D = Design parameter See Characterization conditions section for each “C” type parameter 6.1 Specification Conditions Freescale Semiconductor, Inc... Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25o C, Video Input 1Vp-p, 10-step grayscale. RF output into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION. Parameter Min Typ Max Operating supply voltage range 4.5 5.0 5.5 V Total supply current 44 52 60 mA All sections active A Total standby mode supply current 3 6 9 mA OSC, SO, ATT=1 Bus Section active A Test pattern sync pulse width 3 4.7 6.5 µS B Sound comparator charge pump current During locking When locked 7 0.7 10 1 12 1.5 µA µA A A RF comparator charge pump current 60 100 150 µA A Crystal oscillator stability—negative resistance 1 — — KΩ D Logic Output Port Saturation voltage at I=2mA Leakage current — — 160 — 300 1 mV µA A A MOTOROLA Unit Notes Type B MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 5 I2C Bit Mapping Freescale Semiconductor, Inc. 7 I2C Bit Mapping WRITE MODE Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ACK CA—CHIP ADDRESS 1 1 0 0 1 0 1 0 ACK C1—High Order Bits 1 0 SO LOP PS X3 X2 SYSL ACK C0—Low Order Bits PWC OSC ATT SFD1 SFD0 TB1 X5 X4 ACK FM—High Order Bits 0 TPEN N11 N10 N9 N8 N7 N6 ACK FL—Low Order Bits N5 N4 N3 N2 N1 N0 X1 X0 ACK Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ACK CHIP ADDRESS 1 1 0 0 1 0 1 1 ACK R—Status Byte — — — — — Y2 Y1 OOR - READ MODE Freescale Semiconductor, Inc... Bit Name PWC Peak White Clip enable/disable OSC UHF oscillator ON/OFF ATT SFD0, 1 Modulator output attenuated—sound and video modulators ON/OFF Sound subcarrier frequency control bits TB1 Test mode bit—bus format compatible with MC44353 SO Sound Oscillator ON/OFF LOP Logic Output Port PS Picture-to-sound carrier ratio SYSL System L enable—selects AM sound and positive video modulation (MC44BC373C only) TPEN Test pattern enable—picture and sound X5…X0 N0…N11 OOR Y1, Y2 6 Description Test mode bits—All bits are 0 for normal operation (see Test Mode tables, page 6 & page 7) UHF frequency programming bits, in steps of 250kHz RF oscillator out-of-frequency range information RF oscillator operating range information MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. I2C Programming 8 I2C Programming Freescale Semiconductor, Inc... Sound UHF SFD1 SFD0 Sound Subcarrier Freq (MHz) OSC 0 0 4.5 0 Normal operation 0 1 5.5 1 1 0 6.0 UHF oscillator disabled (oscillator and PLL sections bias turned OFF) 1 1 6.5 PS Picture-to-Sound Ratio (dB) 0 12 1 16 SO Sound Oscillator 0 Sound oscillator ON (Normal mode) 1 Sound oscillation disabled (oscillator and PLL section bias turned OFF) UHF Oscillator ATT Modulator Output Attenuation 0 Normal operation 1 Modulator output attenuation (sound and video modulators sections bias turned OFF. Standby Mode OSC SO ATT 1 1 1 Combination of 3-bits Modulator standby mode MC44353/4/5 Compatibility Video SYSL System L/BG Selection (MC44BC373C only) 0 System B/G enabled, System L disabled (FM sound and negative video modulation) 1 System L enabled, System B/G disabled (AM sound and positive video modulation) PWC Peak White Clip TB1 Description 0 Normal mode (Full programmability) 1 Limited programmability and compatibility with MC44353 Logic Output Port LOP Description 0 Peak White Clip ON (System B/G) 0 Pin 3 is low voltage 1 Peak White Clip OFF (System L) 1 Pin 3 is high impedance TPEN 0 Test Pattern Signal Test pattern signal OFF (normal operation) WRITE MODE: Test Mode 1 and VHF Range X2 X1 X0 State 0 0 0 1.a Normal operation 0 0 1 1.b RF frequency divided for low frequency testing or VHF range: RF/2 0 1 0 1.c RF/4 0 1 1 1.d RF/8 1 0 0 1.e RF/16 1 0 1 1.f DC drive applied to modulators: Non-inverted video at TVOUT 1 1 0 1.g DC drive applied to modulators: Inverted video at TVOUT 1.h Transient output inhibit disabled (ie speed up mode) During this speed-up test mode, ATT=0 forces sound current source to 1µA, and ATT=1 forces it to 10µA. 1 1 MOTOROLA 1 Description MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 7 Freescale Semiconductor, Inc. I2C Programming Freescale Semiconductor, Inc... WRITE MODE: Test Mode 2 X5 X4 X3 State Description 0 0 0 2.a Normal operation 0 0 1 2.b Test pattern generator DC verification (Test pattern DC test mode available) 0 1 0 2.c Program divider test (UHF program divider on PLLFILT pin and sound program divider on SPLLFIL pin) 0 1 1 2.d Reference divider test (UHF reference divider on PLLFILT pin) 1 0 0 2.e UHF phase comparison, upper source on PLLFILT pin Sound phase comparison 10µA upper source on SPLLFIL (Only valid during transient output inhibit.) 1 0 1 2.f UHF phase comparison, lower source on PLLFILT pin Sound phase comparison 10µA lower source on SPLLFIL (Only valid during transient output inhibit.) 1 1 0 2.g Sound phase comparison 1µA upper source on SPLLFIL (Not valid during transient output inhibit.) 1 1 1 2.h Sound phase comparison 1µA lower source on SPLLFIL (Not valid during transient output inhibit.) NOTE: Test modes 1 and 2 are intended for manufacturing test purposes only and cannot be used for normal applications, except for VHF range (states 1.b to 1.e) READ MODE OOR Description 0 Normal operation, VCO in range 1 VCO out of range Y1 Description 0 VCO out of range, frequency too low, only valid if OOR=1 1 VCO out of range, frequency too high, only valid if OOR=1 Y2 8 Description 0 High VCO is active 1 Low VCO is active MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Modulator High Frequency Characteristics 9 Modulator High Frequency Characteristics Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25o C, Video Input 1Vp-p, 10-step grayscale. RF inputs/outputs into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION. Parameter Test Conditions Output signal from modulator section See Figure 3. See Note 2 TVOUT output level Typ Max Unit Type 73 74.5 77 dBµV B 460 — 880 MHz A VHF range From UHF oscillator internally divided 45 — 460 MHz B TVOUT output attenuation During transient output inhibit, or when ATT bit is set to 1. See Figure 3. See Note 2 50 60 — dBc B Sound subcarrier harmonics (Fp+n∗Fs) Reference picture carrier. See Note 2 — 63 58 dBc C Second harmonic of chroma subcarrier Using red EBU bar. See Note 2 — — 65 dBc C Chroma/Sound intermodulation: Fp+ (Fsnd – Fchr) Using red EBU bar.See Note 2 — — 65 dBc C Fo (picture carrier) harmonics 2nd harmonic: CH21 3rd harmonic: CH21 Other channels: See Figure 3. See NOTE 1. See Note 2 — — 35 26 30 22 dBc C Out band (picture carrier) spurious 1/2∗Fo–1/4∗Fo–3/2∗Fo–3/4∗Fo From 40MHz to 1GHz. See Note 2 — 0 10 dBµV C In band spurious (Fo ± 5MHz) No video sound modulation.See Note 2 — — 60 dBc C Note: 1: Picture carrier harmonics are highly dependant on PCB layout and decoupling capacitors. Note: 2: See “Characterization Measurement Conditions” on page 12. 3Fo Har m o n ics 40 45 35 40 Typical 35 30 Typical 25 dBc dBc 2Fo Har m o n ics 30 25 20 20 Maximum specification 15 471 521 571 621 671 721 771 821 871 Fr e q u e n cy ( M h z ) Maximum specification 15 471 521 571 621 671 721 771 821 871 Fr eque ncy ( M hz ) T V Ou t p u t A tt e n u atio n T V Ou tp u t L e v e l 75 78 70 77 Maximum specification 65 dBc 76 dBuV Freescale Semiconductor, Inc... UHF oscillator frequency Min 75 74 Typical 60 55 Typical 73 50 72 Minimum specification 47 1 52 1 5 71 621 67 1 72 1 7 71 821 871 Fr e q u e n c y (M h z ) Maximum specification 45 471 521 571 621 671 721 771 821 871 Fr e q u e n cy ( M h z ) Figure 3. Typical Performance MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 9 Freescale Semiconductor, Inc. Video Characteristics 10 Video Characteristics Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25o C, Video Input 1Vp-p, 10-step grayscale. RF output into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION. Parameter Test Conditions Min Typ Max Unit Type –1.5 –0.8 — dB C — — 1.5 Vcvbs D — 0.2 1 µA A 500 — — KΩ A 110 114 118 % A Using CCIR Rec.567 weighting filter See Figure 4. See Note 2 50 53 — dB C Unweighted. See Note 2 45 — — Differential Phase CCIR Test Line 330, worst case from the first 4 steps out of 5. See Note 2 –5 — 5 deg C Differential Gain CCIR Test Line 330, worst case from the first 4 steps out of 5. See Note 2 –5 — 5 % C Luma/Sync ratio Input ratio 7.0:3.0 6.8/ 3.2 — 7.2/ 2.8 — B PAL video modulation depth See Figure 4. See Note 2 75 81 88 % B SECAM video modulation depth MC44BC373C only - See Figure 4. See Note 2 88 93 99 % B Video bandwidth Reference 0dB at 100kHz, measured at 5MHz. See Note 2 Video input level 75Ohm load Video input current Video input impedance PWC bit set to 1, see PWC section. See Note 2 Peak White Clip Video S/N C V id e o Sig n al to No is e ( w i t h C C I R W e i ght i ng f i l t e r ) 58 56 dB 54 52 Typical 50 Minimum specification 48 471 521 571 621 671 721 771 821 871 Fr e q u e n cy (M h z ) SEC A M V id e o M o d u latio n De p th PA L V id e o M o d u latio n De p th 90 100 88 98 86 84 Maximum specification 94 82 80 78 76 Maximum specification 96 % % Freescale Semiconductor, Inc... No sound modulation,100% white video 92 90 Typical Minimum specification 74 471 521 571 621 671 721 771 821 871 Fr e q u e n cy (M h z ) Typical 88 Minimum specification 86 471 521 571 621 671 721 771 821 871 Fr e q u e n cy (M h z ) Figure 4. Typical Performances 10 MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Audio Characteristics 11 Audio Characteristics Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25o C, Video Input 1Vp-p, 10-step grayscale. RF inputs/outputs into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION. Parameter Picture-to-Sound ratio Test Conditions Min Typ Max Unit Type 13 9 16 12 19 15 dB B PS bit set to 0 PS bit set to 1 Using specific pre-emphasis circuit, audio input level=205mVrms–audio frequency=1kHz AM modulation: SECAM Fs=6.5MHz — 80 — % B FM modulation: Fs=5.5, 6 or 6.5MHz 100% modulation=±50kHz FM deviation — 80 — % B FM modulation: NTSC Fs=4.5MHz 100% modulation=±25kHz FM deviation — 80 — % B 45 53 61 KΩ A –2.5 — +2 dB C Audio input resistance Audio Frequency response Reference 0dB at 1kHz, using specified pre-emphasis circuit, measure from 50Hz to 15kHz Audio Distortion FM (THD only) at 1kHz, 100% modulation (±50kHz) No video — 0.4 2 % C Audio Distortion AM (THD only) at 1kHz, 100% modulation No video — 1.5 2.5 % D Audio S/N with Sync Buzz FM Ref 1Khz, 50% modulation (+/-25Khz) EBU color bars Video signal, using CCIR 468.2 weighting filter 48 53 — dB C Audio S/N with Sync Buzz AM Reference 1kHz, 85% modulation Video input EBU color bar 75% Audio BW 40Hz—15kHz Weighting filter CCIR 468-2 45 50 — dB D Audio Signal to Nois e 58 56 54 dB Freescale Semiconductor, Inc... Audio modulation depth Typical 52 50 48 Minimum specification 46 471 521 571 621 671 721 771 821 871 Fr e que ncy (M hz ) Figure 5. Typical Performances MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 11 Freescale Semiconductor, Inc. Characterization Measurement Conditions 12 Characterization Measurement Conditions Freescale Semiconductor, Inc... Device default configuration unless otherwise specified: • Peak White Clip enable • UHF oscillator ON • Sound and video modulators ON • Sound subcarrier frequency = 5.5Mhz • TB1 bit set to ‘0’ (bus format not compatible with MC44353) • Sound Oscillator ON • Logic Output Port LOW • Picture-to-sound carrier ratio = 12dB • System L disabled • Test pattern disabled • All test mode bits are ‘0’ • Frequency from channel 21 to 69 RF Inputs / Output into 75ohm Load using a 75 to 50 ohm transformation. Video Input 1V pk-pk. Audio pre-emphasis circuit engaged. Device and Signals Set-up Measurement Set-up TVOUT output level Video: 10 steps grey scale No audio Measured picture carrier in dBuV with the HP8596E Spectrum Analyzer using a 75 to 50 ohm transformation, all cables losses and transformation pads having been calibrated. Measurement used as a reference for other tests: TVout_Ref TVOUT output attenuation “ATT” bit = 1 No Video signal No Audio signal Measure in dBc picture carrier at “ATT”=”1” with reference to picture carrier at “ATT”=”0”. Sound Subcarrier Harmonics Video: 10 steps grey scale No Audio signal Measure in dBc second and third sound harmonics levels in reference to picture carrier (TVout_Ref). Picture carrier Sound carrier Sound 2nd harm Sound 3rd harm Fo 12 +5.5Mhz +11Mhz +16.5Mhz MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Characterization Measurement Conditions Device and Signals Set-up Measurement Set-up Second Harmonics of Chroma subcarrier No audio Video: a 700mVpk-pk 100Khz sinusoidal signal is inserted on the black level of active video area. Measure in dBc, in reference to picture carrier (TVout_Ref), second harmonic of chroma at channel frequency plus 2 times chroma frequency, resulting in the following spectrum Picture carrier Frequency Frequency 100kHz 100Khz Sound carrier Chroma carrier 700mVpkpk 700mV pk-pk Chroma 2nd Harmonic Freescale Semiconductor, Inc... Fo +4.43Mhz +5.5Mhz +8.86Mhz Chroma/Sound intermodulation No audio signal Video: 700mVpk-pk 100Khz sinusoidal signal inserted on the black level of active video area.This is generated using a Rohde & Schwarz Video Generator SAF and inserting the required frequency from a RF Signal generator. Frequency Frequency 100kHz 4.43Mhz Measure in dBc, in reference to picture carrier (TVout_Ref), intermodulation product at channel frequency plus the sound carrier frequency (+5,5Mhz) minus the chroma frequency (-4,43Mhz), resulting in the following spectrum. Intermodulation product is at the channel frequency +1,07Mhz. Picture carrier Sound carrier Chroma carrier 700mVpkpk Chroma/Sound Intermod. 700mV pk-pk Fo +4.43Mhz +5.5Mhz +1.07Mhz Picture Carrier Harmonics No Video signal No Audio signal Measure in dBc, in reference to picture carrier (TVout_Ref), second and third harmonic of channel frequency, resulting in the following spectrum. Picture carrier 2nd harmonic Fo MOTOROLA 3rd harmonic 2Fo MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 3Fo 13 Freescale Semiconductor, Inc. Characterization Measurement Conditions Device and Signals Set-up Measurement Set-up Out of Band Spurious No Video signal No Audio signal Measure in dBuV spurious levels at 0.25, 0.5, 0.75 and 1.5 times channel frequency, resulting in the following spectrum Measure from 40Mhz to 1Ghz. Picture carrier Spurious Fo/4 Fo/2 Fo*3/4 Fo Fo*3/2 Freescale Semiconductor, Inc... In Band Spurious No Video signal No Audio signal Measure in dBc, in reference to picture carrier (TVout_Ref), spurious levels falling into video bandwidth Fo+/-5Mhz. Video Bandwidth No audio Video: 600mVpk-pk sinusoidal signal inserted on the black level of active video area. The Video signal is demodulated on the spectrum analyzer, and the peak level of the 100Khz signal is measured as a reference. The frequency is then swept from 100Khz to 5Mhz, and then the difference in dBc from the 100Khz reference level is measured. Peak White Clip No Audio signal. Video: 10 step grey scale The video modulation depth is measured for 1.0VCVBS input level, giving modulation depth MDA. Then the same measurement is carried out for an input level of 1.4VCVBC, giving modulation depth MDB. The Peak White Clip is defined as 100*MDB/MDA. Weighted Video Signal to Noise Video: 100% White video signal - 1Vpk-pk. No Audio signal This is measured using a Rohde & Schwarz AMFS UHF Demodulator in B/G (using a CCIR Rec. 567 weighting network, 100kHz to 5MHz band with sound trap and envelope detection, and a Rohde & Schwarz UAF Video Analyzer. The Video Analyzer measures the ratio between the amplitude of the active area of the video signal (700mV) and the noise level in Vrms on a video black level which is show below. VideoS/N is calculated as 20 x log(700 /N) in dB N noise level in Vrms Unweighted Video Signal to Noise Same as above with CCIR filter disabled. Same as above. Video Differential Phase Video: 5 step Grey Scale- 1Vpk-pk. No Audio signal This is measured using a Rohde & Schwarz AMFS UHF Demodulator in B/G (using a CCIR Rec. 567 weighting network, 100kHz to 5MHz band with sound trap, and envelope detection, and a Rohde & Schwarz UAF Video Analyzer. On line CCIR 330, the video analyzer DP measure consists of calculating the difference of the Chroma phase at the black level and the different chroma subcarrier phase angles at each step of the greyscale. The largest positive or negative difference indicates the distortion. the largest positive or negative difference DIFF PHASE = the phase at position 0 * 100% The video analyzer method takes the worst step from the first 4 steps. 14 MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Characterization Measurement Conditions Device and Signals Set-up Measurement Set-up Video Differential Gain Video: 5 step Grey Scale- 1Vpk-pk. No Audio signal This is measured using a Rohde & Schwarz AMFS UHF Demodulator in B/G (using a CCIR Rec. 567 weighting network, 100kHz to 5MHz band with sound trap and envelope detection, and a Rohde & Schwarz UAF Video Analyzer. On line CCIR 330 shown below, the video analyzer DG measure consists of calculating the difference of the Chroma amplitude at the black level and the different amplitudes at each step of the greyscale. The largest positive or negative difference indicates the distortion. 0 1 2 3 4 5 5-step Greyscale with Chroma subcarrier superimposed Freescale Semiconductor, Inc... (not to scale), line CCIR 330. the largest positive or negative difference DIFF GAIN = the amplitude at position 0 * 100% The video analyzer method takes the worst step from the first 4 steps. Video Modulation Depth No Audio signal Video: 10 step grey scale This is measured using a HP8596E Spectrum Analyzer with a TV Trigger option, allowing demodulation and triggering on any specified TV Line. The analyzer is centred on the maximum peak of the Video signal and reduced to zero Hertz span in Linear mode to demodulate the Video carrier. A(mV) A ( 6-10mV) B(mV) B (0.6 - 3mV) TV Line Demodulated by Spectrum Analyzer-BG standard The Modulation Depth is calculated as (A-B)/A x 100 in% Same measurement method for L standard, with inverted video. Picture to Sound ratio No Video signal No Audio Signal “PS” bit set to 0 and 1 Measure in dBc sound carrier in reference to picture carrier (TVout_Ref) for “PS” bit=0 (PS=12dB typical) and for “PS” bit=1 (PS=16dB), Picture carrier Sound carrier Fo +5.5Mhz Audio Modulation Depth - FM Modulation Video Black Level Audio signal: 1Khz, 205mVrms. This is measured using a Rohde & Schwarz AMFS Demodulator in B/G and a HP8903A Audio Analyzer at 1kHz MOTOROLA The audio signal 205mV at 1kHz is supplied by the Audio Analyzer, and the FM demodulated signal deviation is indicated on the Demodulator in Khz peak. This value is then converted in% of FM deviation, based on specified standards. MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 15 Freescale Semiconductor, Inc. Characterization Measurement Conditions Device and Signals Set-up Measurement Set-up Audio Frequency response The audio signal 1KHz 100mVrms is supplied by the Audio Analyzer, demodulated by the Demodulator and the audio analyzer measures the Video Black Level AC amplitude of this demodulated audio signal: this value is taken as a Audio signal: 50Hz to 15KHz, 100mVrms reference (0dB). This is measured using a Rohde & The audio signal is then swept from 50Hz to 15KHz, and demodulated Schwarz AMFS Demodulator in B/G and a AC amplitude is measured in dB relative to the 1KHz reference. HP8903A. Audio pre-emphasis and de-emphasis circuits are engaged, all audio analyzer filters are switched OFF. Freescale Semiconductor, Inc... Audio Distortion FM Audio: 1Khz, adjustable level Video Black Level This is measured using a Rohde & Schwarz AMFS UHF Demodulator in B/G and a HP8903A Audio Analyzer at 1kHz. The output level of the Audio analyzer is varied to obtain a deviation of 50kHz indicated on the Demodulator. The input arms detector of the Audio Analyzer converts the ac level of the combined signal + noise + distortion to dc. It then removes the fundamental signal (1kHz) after having measured the frequency. The output rms detector converts the residual noise + distortion to dc. The dc voltmeter measures both dc signals and calculates the ratio in% of the two signals. ADist = ( Distorsion + Noise ) ⁄ ( Distorsion + Noise + Signal ) Audio Signal to Noise The Audio Analyzer alternately turns ON and OFF it's internal audio source to make a measure of the Audio signal plus noise and then another measure of only the noise. Audio: 1Khz, adjustable level The measurement is made using the internal CCIR468-2 Filter of the Video: EBU Color Bars Audio Analyzer together with the internal 30+/-2kHz (60dB/decade) This is measured using a Rohde & Lowpass filters. Schwarz AMFS Demodulator in B/G and a The AMFS demodulator uses a quasi-parallel demodulation as is the HP8903A Audio Analyzer at 1kHz. The case in a normal TV set. In this mode the Nyquist filter is bypassed and output level of the Audio analyzer is varied the video carrier is used without added delay to effectuate intercarrier to obtain a Modulation Deviation of 25kHz conversion. In this mode the phase noise information fully cancels out indicated on the AMFS Demodulator. and the true S/N can be measured ASN ( dB ) = 20 × log ( Signal + Noise ) ⁄ ( Noise ) 16 MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Modulator Description 13 Modulator Description 13.1 Power ON Settings At power-ON, the MC44BC373C/4C configuration is as follows: Freescale Semiconductor, Inc... WRITE MODE Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ACK C1—High Order Bits 1 0 0 0 0 0 0 0 ACK C0—Low Order Bits 0 0 0 0 1 0 0 0 ACK FM—High Order Bits 0 0 N11 N10 N9 N8 N7 N6 ACK FL—Low Order Bits N5 N4 N3 N2 N1 N0 0 0 ACK Note: N0 to N11 are set to have UHF oscillator on channel 36 (591.25MHz). Note: Peak White Clip is ON. Note: Sound frequency is 5.5MHz. Note: Logic Output Port is low voltage. Note: Picture to sound ratio is 12dB. These settings can be customized in special masked version. 13.2 Power Supply The three device Vccs (pins 10, 13, 15) must be applied at the same time to ensure all internal blocks are correctly biased. All other pins must not be biased before Vcc is applied to device. 13.3 Standby modes During standby mode, the modulator is switched to low power consumption: the sound oscillator, UHF oscillator, video and sound modulator sections bias are internally turned OFF. The IIC bus section remains active. Modulator can be programmed in standby mode with combination of 3 bits:OSC=1, SO=1 and ATT=1 13.4 System L or B / G Selection SYSL bit internally switches the following functions: • SYSL = 0 enables B/G system — Video modulation polarityNegative — Video modulation depth80% Typical (See “Video Characteristics” on page 10.) — Sound modulation typeFM • SYSL = 1 enables L system — Video modulation polarityPositive — Video modulation depth90% Typical (See “Video Characteristics” on page 10.) — Sound modulation typeAM MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 17 Modulator Description Freescale Semiconductor, Inc. 13.5 Test Bit TB1 This test bit allows a different bus format. • TB1=0 — All MC44BC373C/4C Functions Available—Normal Mode. • TB1=1 — Limited Software Compatibility with MC443533. MC44BC373C/4C Functions Not Available. TB1=1, allows a first evaluation of MC44BC373C/4C using software developed for MC44353 devices. Freescale Semiconductor, Inc... WRITE MODE † Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ACK CA—CHIP ADDRESS 1 1 0 0 1 0 1 0 ACK C1—High Order Bits 1 * * * PS * * SYSL ACK C0—Low Order Bits * * * SFD1 SFD0 1 0 0 ACK FM—High Order Bits 0 TPEN N11 N10 N9 N8 N7 N6 ACK FL—Low Order Bits N5 N4 N3 N2 N1 N0 * * ACK † Case TB1=1 compatible with MC44353 • • • • • • • All “∗” are don’t care bits. PS bit replaces PSD2 bit in MC44353 bus format: PS = 0 is for Picture-to-Sound ratio = 12dB PS = 1 is for Picture-to-Sound ratio = 16dB SFD1 and SFD0 bits have the same definition for both bus formats (MC44353 and MC44BC373C/4C) and allows a select sound frequency between 4.5MHz, 5MHz, 5.5MHz, and 6.5MHz. SYSL bit is the same definition for both bus formats (MC44353 and MC44BC373C/4C) and allows a select system L or BG. All MC44BC373C/4C functions are set to their default values. 13.6 Transient Output Inhibit To minimize the risk of interference to other channels while the UHF PLL is acquiring a lock on the desired frequency, the Sound and Video modulators are turned OFF during a time out period for each of the following two cases: • Power-ON from zero (i.e., all Vcc is switched from 0V to 5V). • UHF oscillator power-ON from OFF state (i.e., OSC bit is switched from 1 to 0) There is a time-out of 263ms until the output is enabled. This lets the UHF PLL settle to its programmed frequency. During the 263ms time-out, the sound PLL current source is set to 10µA typical to speed up the locking time. After the 263ms time-out, the current source is switched to 1µA. Use care when selecting loop filter components, to ensure the loop transient does not exceed this delay. For test purposes, it is possible to disable the 263ms delay using Test Mode1–State1.h (this is called speed up mode). 13.7 UHF Oscillator—VHF range The UHF oscillator is fully integrated and does not require any external components. For low frequency testing or VHF range operation (test mode 1, states 1.b to 1.c), the UHF oscillator can be internally divided by: 2, 4, 8, or 16. 18 MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Modulator Description 13.8 PLL Section The reference divider is a fixed divide-by-128, resulting in a reference frequency of 31.25KHz with a 4.0MHz crystal. The 31.25KHz reference frequency is used for both UHF and Sound PLLs. The prescaler is a fixed divide-by-8 and is permanently engaged. The programmable divider division-ratio is controlled by the state of control bits N0 to N11. The divider-ratio N for a desired frequency F (in MHz) is given by: F 128 N = --- × --------8 4 with: Freescale Semiconductor, Inc... N = 2048 × N11 + 1024 × N10 + …… + 4 × N2 + 2 × N1 + N0 Programming a division-ratio N=0 is not allowed. 13.9 Logic Output Port The LOP pin is used to control any logic function. The primary applications are to control an external attenuator or an external switch, between the antenna input and TV output. A typical attenuator application with PIN diode is shown. The LOP pin is used to switch the PIN attenuator depending on the signal strength of the Antenna Input, thereby reducing the risks of Intermodulation in certain areas. The LOP may also be used as an OFF position bypass switch or for other logic functions in the application. Vcc Antenna Input TV Out LOP pin Figure 6. Attenuator Application with PIN Diode 13.10 Video Section - Peak White Clip The modulator requires the following: • A composite video input with negative going sync pulses • A nominal level of 1Vp-p This signal is AC-coupled to the video input where the sync tip level is clamped. The video signal is then passed to a Peak White Clip circuit. The PWC circuit function is to soft-clip the top of the video waveform if the “sync tip amplitude” to “peak white clip” goes too high. This method avoids carrier over-modulation by the video. Clipping can be disabled by software. MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 19 Modulator Description Freescale Semiconductor, Inc. 13.11 Sound Section The multivibrator oscillator is fully integrated and does not require any external components. An internal low-pass filter and matched structure give a very low harmonics level. The sound modulator system consists of the following two types: • An FM modulator incorporating the sound subcarrier oscillator • An AM modulator (MC44BC373C only) The audio input signal is AC-coupled into the amplifier, which then drives both types of modulator. The audio pre-emphasis circuit is a high-pass filter with an external capacitor and an internal resistor (100kOhms). The recommended capacitor value (470pF) is for BG standard; time constant is 50µS. Freescale Semiconductor, Inc... 13.12 Test Pattern Generator The IIC generates a simple test pattern, which can be switched under bus control to permit a TV receiver to easily tune to the modulator output. The pattern consists of two white vertical bars on a black background and a 976Hz audio test signal. TE2 7/10 3/10 TE1 0 10 20 24 2830 40 44 50 60 64 TIME IN µS. Table 1. Test Pattern Generator 20 MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. High Speed I2C Compatible Bus 14 High Speed I2C Compatible Bus 14.1 Specification Conditions Unless otherwise specified, Vcc1=5.0V, TA=25 oC. Freescale Semiconductor, Inc... Electrical Characteristics Min Typ Max Unit Type SDA / SCL output current at 0V — — 10 µA A SDA / SCL low input level — — 1.5 V B SDA / SCL high input level 3.0 — — V B SDA/SCL input current for input level from 0.4V to 0.3Vcc –5 — 5 µA C SDA/SCL input level 0 — Vcc+0,3 V D SDA/SCL capacitance — — 10 pF C ACK low output level (sinking 3mA) — 0,3 1 V A ACK low output level (sinking 15mA) — — 1.5 V C Min Typ Max Unit Type 0 — 800 kHz C Bus free time between stop and start 200 — — ns C Setup time for start condition 500 — — ns C Hold time for start condition Timing Characteristics Bus clock frequency 500 — — ns C Data setup time 0 — — ns C Data hold time 0 — — ns C Setup time for stop condition 500 — — ns C Hold time for stop condition 500 — — ns C Acknowledge propagation delay — — 300 ns C SDA fall time at 3ma sink I and 130pF load — — 50 ns C SDA fall time at 3ma sink I and 400pF load — — 80 ns C SDA rise time SCL fall/rise time — — — — 300 300 ns ns C C Pulse width of spikes suppressed by the input filter — — 50 ns C 14.2 Timings Definition Tbuf Stop ACK Start Chip Address SSDA SSCL Tsu;sto Thd;sta MOTOROLA ... ... Tsu;dat Thd;dat Tack:low Start Stop SDA SDA SCL SCL Tsu;sta MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com Thd;sto 21 Freescale Semiconductor, Inc. High Speed I2C Compatible Bus 14.3 Levels Definition SDA ... Vcc Vih dead band Vil 0V 14.4 High Speed I2C Compatible Bus Format SCL Freescale Semiconductor, Inc... 1 STA 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Chip Address ($CA) First Data Byte (C1 or FM) ACK 44 45 Stop Data ACK ACK SDA 14.5 I2C Write Mode Format and Bus Receiver The bus receiver operates the I2C compatible data format. The chip address (I2C bus) is: 1 1 0 0 1 0 1 0 (ACK) = $CA (hex) in write mode In write mode, each ninth data bit (bits 9, 18, 27, 36, and 45) is an acknowledge bit (ACK) during which the MCU sends a logic 1 and the Modulator circuit answers on the data line by pulling it low. Besides the chip address, the circuit needs two or four data bytes for operation. The following sequences of data bytes are the permitted incoming information: Example 1 STA CA C1 C0 STO Example 2 STA CA Example 3 STA CA FM FL STO C1 C0 FM FL STO Example 4 STA CA FM FL C1 C0 STO With: STA = Start condition CA = Chip Address FM = Frequency information, high order bits FL = Frequency information, low order bits C1 = Control information, high order bits CO = Control information, low order bits STO = Stop condition After the chip address, two or four data bytes may be received. 22 • If three data bytes are received, the third one is ignored. • If five or more data bytes are received, the fifth and following ones are ignored, and the last ACK pulse is sent at the end of the fourth data byte. MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. High Speed I2C Compatible Bus The first and third data bytes contain a function bit, which lets the IC distinguish between frequency information and control information. If the function bit is a logic 1, the two following bytes contain control information. The first data byte after the chip address, may be byte CO or byte FM. The two bytes of frequency information are preceded by a logic 0. 14.6 I2C Read Mode Format The chip address (I2C) is: 1 1 0 0 1 0 1 1 (ACK) = $CB (hex) in read mode Freescale Semiconductor, Inc... The incoming information consists of the read mode chip address byte. The device then answers with an ACK followed by one byte containing three bits of status information. No acknowledge is answered by the modulator after this byte. MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 23 Freescale Semiconductor, Inc. Pin Circuit Schematics 15 Pin Circuit Schematics VCCD VCCD VCC VCC 25K 50 SDA 1/2 VCCD SCL 25K 1/2 VCCD ACK VCC Freescale Semiconductor, Inc... VCC 5K LOP XTAL 1.5K VCC VCC 50k PREM 10k 11.8k VCC audio AUDIO IN VCC TV OUT VCC 5K VCC SPLLFLT 75 TVOVCC VCC VCC VCC 100 PLLFLT 2K 500 10K VIDEO 10K 24 MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor,Application Inc. and Case Diagrams 16 Application and Case Diagrams 16.1 Proposed BiCMOS Modulator Application This document contains information on a new product under development. Motorola reserves the right to change or discontinue this product without notice. Vcc SDA SCL O O O Note 2 1 SCL 2 O 4MHz 3 Cx Note 1 LOP 4 XTAL 5 GND Pre-em 6 470pF PREEM 7 AUDIO 8 SPLLFLT 220nF 100nF 22nF O Freescale Semiconductor, Inc... SDA LOP Audio 15K 16 2.2k 22nF GNDD 15 VCCD 14 47nF PLLFLT 13 TVOVCC 12 10nF O TVOUT 1nF TVOUT 11 GND 10 VCCA 10nF 9 VIDEO 10nF 100nF 75 O Video O Vcc Note 1: Cx value depends on crystal characteristics; Cx = 27pF on Motorola application board. Note 2: Loop Filter components must be as close as possible to pins 14 and 15. Figure 7. Proposed MC44BC373C/4C Application Schematic MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 25 Freescale Semiconductor, Inc. Application and Case Diagrams 16.2 Packaging Instructions Tape and reel packaging per 12MRH00360A with the following conditions applicable for Dual In-Line SOP (SOIC) package. Freescale Semiconductor, Inc... Component Orientation: Arrange parts with the pin 1 side closest to the tape's round sprocket holes on the tape's trailing edge. 16.3 Marking Instructions SO16NB Package: Bar marked part way accross Pin 1 end of package. Bar width 10 to 20 mils, length to be at least four times Bar width. Bar placement may extend across chamfer and dimple areas. 44BC37xCD Pin 1 Dot or Dimple • • 1st line: 44BC373CD for MC44BC373CD device 44BC374CD for MC44BC374CD device (Part number coded on 10 digits) 2nd line: Assembly site code AW (2 digits) followed by the wafer lot code L (1 digit), year Y (1 digit) and work week WW (2 digits) TSSOP16 package 44BC 37xC 26 • 1st line: 44BC (Part number coded on 4 digits) • 2nd line: 373C for MC44BC373CDTB device 374C for MC44BC374CDTB device (Part number coded on 4 digits) • 3rd line: Assembly site code A (1 digit) followed by the wafer lot code L (1 digit), year Y (1 digit) and work week W (1 digit) MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc... Freescale Semiconductor,Application Inc. and Case Diagrams Millimeters Inches Dim Note: 1994. 1. Dimensions and Tolerances per ASME Y14.5M, 2. Controlling dimension: Millimeters. Min Max Min Max Note: A 1.35 1.75 0.054 0.068 A1 0.1 0.25 0.004 0.009 Note: 3. Dimension D and E1 do not include mold protrusion. D 9.8 10 0.385 0.393 E 5.8 6.2 0.229 0.244 E1 3.8 4 0.150 0.157 b 0.35 0.49 0.014 0.019 c 0.19 0.25 0.008 0.009 e 1.27 BSC Note: 4. Maximum mold protrusion 0.15 (0.006) per side. Note: 5. Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall be 0.127 (0.005) total in excess of the b dimension at maximum material condition. 0.050 BSC L 0.4 1.25 0.016 0.049 h 0.25 0.5 0.010 0.019 Q 0o 7o 0o 7o Figure 8. SO16NB Package MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 27 Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... Application and Case Diagrams Figure 9. TSSOP16 Package 28 MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc... Freescale Semiconductor,Application Inc. and Case Diagrams MOTOROLA MC44BC373C/374C Technical Data For More Information On This Product, Go to: www.freescale.com 29 Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. HOW TO REACH US: Information in this document is provided solely to enable system and software implementers to use Motorola products. There are no express or implied copyright licenses granted hereunder to USA/EUROPE/LOCATIONS NOT LISTED: design or fabricate any integrated circuits or integrated circuits based on the information in this Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217 1-303-675-2140 or 1-800-441-2447 document. JAPAN: for any particular purpose, nor does Motorola assume any liability arising out of the application or Motorola reserves the right to make changes without further notice to any products herein. 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