MC44BC375UAEFR2 Freescale Semiconductor, MC44BC375UAEFR2 Datasheet
MC44BC375UAEFR2
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MC44BC375UAEFR2 Summary of contents
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... Freescale Semiconductor, Inc. Technical Data MC44BC375/D Rev. 2.6 01/2003 MC44BC375/U/J/T PLL Tuned VHF Audio/ Video High Integration Modulator ICs Contents List This modulator circuit is for use in VCRs, set top boxes and similar devices. The device differences are as follows: 1 Features . . . . . . . . . . . . . 2 2 Device Overview . . . . . . 3 • ...
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... Freescale Semiconductor, Inc. Features 1 Features Channels are selectable using pin Channel Selection (CHS) and tuned by a PLL. They do not require any external tank circuit components thus reducing the sensitivity of the PCB design and the need for external adjustments. The PLL obtains its reference from a 4MHz crystal oscillator. ...
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... Freescale Semiconductor, Inc. 2 Device Overview Figure 2 shows a simplified block diagram of the MC44BC375U/J/Tdevice. The MC44BC375U/J/T device has two main sections modulator section which accepts audio and video inputs and modulates the VHF carrier PLL section to synthesize the UHF/VHF output channel frequency (from an integrated UHF oscillator, divided for VHF output) The high frequency BICMOS technology permits integration of tank circuit and certain filtering functions ...
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... Freescale Semiconductor, Inc. Maximum Ratings 3 Maximum Ratings Sym Parameter Vcc Supply voltage Tamin Minimum operating ambient temperature Tamax Maximum operating ambient temperature Tstgmin Minimum storage temperature Tstgmax Maximum storage temperature Tj Junction Temperature 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 ...
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... Freescale Semiconductor, Inc. 6 Electrical Characteristics • 100% Tested • 100% Correlation tested • Characterized on samples • Design parameter 6.1 Specification Conditions Unless otherwise stated: Vcc = 5.0V, T amb. = 25°C.Video input 1Vp-p, 10 step greyscale. RF inputs / outputs into 75Ω load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION ...
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... Freescale Semiconductor, Inc. Pin Selection 7 Pin Selection Pin Nb Pin Name Device MC44BC375U 1 CHS MC44BC375J MC44BC375T 2 PSS MC44BC375U/J/T 9 PSave/LO MC44BC375U/J/T 16 SFS MC44BC375U/J/T By default (open condition), all pins are “HI”. 7.1 Test Modes Pin DC level Vcc + 0.3V Low frequency testing (RF frequency divided by 4 for MC44BC375U/J, and ...
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... Freescale Semiconductor, Inc. 9 Video Characteristics Parameter Reference 0dB at 100kHz, measured at Video bandwidth 5MHz Video input level 75Ohm load Video input current Video input impedance Unweighted Video S/N Weighted Differential Phase Differential Gain Luma/Sync ratio Input ratio 7.0:3.0 Video modulation depth Video input level=1.0 V Peak White Clip Video Modulation Depth for Video=1 ...
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... Freescale Semiconductor, Inc. Characterization Measurement Conditions Device and Signals Set-up Video: 10 steps grey scale No audio Video: 10 steps grey scale No Audio signal Second Harmonics of Chroma subcarrier No audio Video: a 700mVpk-pk 100Khz sinusoidal signal is inserted on the black level of active video area. Frequency Frequency 700mVpkpk ...
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... Freescale Semiconductor, Inc. Device and Signals Set-up No Video signal No Audio signal No Video signal No Audio signal In Band Spurious / 4Mhz Crystal Spurious No Video signal No Audio signal No audio Video: 600mVpk-pk sinusoidal signal inserted on the black level of active video area. Video: 100% White video signal - 1Vpk- pk ...
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... Freescale Semiconductor, Inc. Characterization Measurement Conditions Device and Signals Set-up Video: 5 step Grey Scale- 1Vpk-pk. No Audio signal This is measured using a Rohde & Schwarz AMFS Demodulator in B/G (using a CCIR Rec. 567 weighting network, 100kHz to 5MHz band with sound trap, and envelope detection, and a Rohde & ...
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... Freescale Semiconductor, Inc. Device and Signals Set-up 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 Video Black Level Audio signal: 50Hz to 15KHz, 100mV rms This is measured using a Rohde & ...
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... Freescale Semiconductor, Inc. Modulator Functionality 12.2 Test modes The MC44BC375U/J/T test modes are enabled by any voltage level higher than Vcc on pins CHS, PSS, SFS and VIDEO. Care must be taken in the application to not reach levels higher than Vcc on those pins. 12.3 Standby modes During standby mode, the modulator is switched to low power consumption: the sound oscillator, UHF oscillator and VHF dividers, video and sound modulator sections bias are internally turned OFF ...
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... Freescale Semiconductor, Inc. The audio pre-emphasis circuit is a high-pass filter with an external capacitor C1 and an internal resistor (100kOhms typical). The recommended capacitor value (750pF) is for M/N standards; time constant is 75µ 470pF for B/G standards (50µs). Audio bandwidth specification is for 50Hz to 15Khz range, with pre-emphasis circuit engaged. Without this pre-emphasis circuit possible to extend the audio bandwidth to the high frequencies as there is no internal frequency limitation (stereo application) ...
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... Freescale Semiconductor, Inc. Pin Circuit Schematics 13 Pin Circuit Schematics VCC 100K CHS PSS SFS Psave VCC 5K XTAL 1.5K VCC PREM 11.8k VCC VCC 5K SPLLFLT VCC VCC 100 PLLFLT 2K For More Information On This Product, 10k audio Figure 3. Pin Schematics MC44BC375/U/J/T Technical Data Go to: www ...
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... Freescale Semiconductor, Inc. 14 MC44BC375U Application Schematic CH 3/4 PS1/2 Select Select O O LOP Cx*** 4MHz C1 Pre-em 330nF 100nF Audio O 10k 22nF Ω *: This match with can be removed in case of high impedance video generator. R1 and R2 are to reduce video modulation depth from typical value Ω (for example R1=1K ...
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... Freescale Semiconductor, Inc. Markings and Case Diagrams 15 Markings and Case Diagrams 15.1 Pin Description N° Symbol Pin description 1 CHS Channel Select 2 PSS Picture to Sound Select 3 LOP Logic Output Port 4 XTAL Crystal 5 Gnd Ground 6 PREEM Pre-emphasis 7 AUDIO Audio Input 8 SPLFLT Sound PLL Filter ...
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... Freescale Semiconductor, Inc. 15.2 Packaging Instructions Tape and reel packaging per 12MRH00360A with the following conditions applicable for Dual In-Line SOP (SOIC) package. 15.3 Marking Instructions In accordance with 12MRH00191A internal specification applied for Dual in-line SO package. Bar marked part way accross Pin 1 end of package. ...
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... Freescale Semiconductor, Inc. Markings and Case Diagrams Millimeters Dim Min Max Min A 1.35 1.75 0.054 A1 0.1 0.25 0.004 D 9.8 10 0.385 E 5.8 6.2 0.229 E1 3.8 4 0.150 b 0.35 0.49 0.014 c 0.19 0.25 0.008 e 1.27 BSC L 0.4 1.25 0.016 h 0.25 0.5 0.010 For More Information On This Product, ...
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... Freescale Semiconductor, Inc. MC44BC375/U/J/T Technical Data For More Information On This Product, Go to: www.freescale.com Markings and Case Diagrams ...
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... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...