mc44cc375av Freescale Semiconductor, Inc, mc44cc375av Datasheet
mc44cc375av
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mc44cc375av Summary of contents
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... Audio / Video Modulator The MC44CC375 CMOS RF modulator is the latest generation of the legacy MC44BC375 products. The MC44CC375AV is an audio/video RF modulator for use in VCRs, set-top boxes, and similar devices designed for applications requiring US broad- cast, channel 3 or channel 4, RF outputs. A programmable Phase-Locked Loop (PLL) tunes the modulator, and the de- sired channel frequency is selected using the external package pin, Chan- nel Selection (CHS) ...
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... Table 1. Package Pin Description Pin Number Pin 3, SOC, should not be pulled up to high voltage. It has an internal pull-up of 1.8V. MC44CC375AV 2 PIN DESCRIPTIONS SO16 Pin Package CHS 1 16 GND 2 15 SOC 3 14 XTAL 4 13 PREEM 5 12 ...
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... PSAVE 16 Section 1 CHS 2 GND Figure 2. MC44CC375AV Simplified Block Diagram POWER SUPPLY Do NOT bias any other pin before V vice. 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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... The recommended capacitor value (750 pF) is for NTSC standards, time constant is 75 µs. The audio bandwidth specification is for KHz range, with pre-emphasis circuit engaged. Without this pre- MC44CC375AV 4 emphasis circuit possible to extend the audio bandwidth to high frequencies, as there is no internal frequency limita- tion (stereo application, SAP, etc ...
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... CC While locking 1.0 When locked — 1.2 V — Max Units +3 0 °C +150 °C +105 Typ Max Units — +500 V — +2000 V — — mA 102 — °C/W Typ Max Units +3.3 +3 µA 3.9 7.0 µA 1.0 1.5 1 2.1 —- V °C — +70 MC44CC375AV 5 ...
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... Input ratio 7.0:3.0 Video modulation depth Video input level = 1.0 V Peak White Clip Video Modulation depth for video = 1 See Performance Measurement Test Set-ups, MC44CC375AV 6 The parameters listed are based on the type of test condi- tions found in the column Type. • 100% tested • ...
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... Audio Distortion FM (THD only) At 1.0 KHz, 100% modulation (±25 KHz) No video Audio S/N Pre-emphasis 1. See Performance Measurement Test Set-ups, Digital Home Freescale Semiconductor (1) Min Test Conditions -2.5 — 51 Table 9. Typ Max Unit Type 100 104 % KΩ A — +2 0.5 1 — MC44CC375AV 7 ...
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... Generator and inserting the required frequency from a RF Signal generator. Frequency Frequency 700 mVpkpk 100 kHz 100kHz 700mV pk-pk MC44CC375AV 8 • Video Input 1.0 V pk-pk • Audio pre-emphasis circuit engaged Measurement Set-Up RFOUT Output Level Measured picture carrier in dBµV with the HP8596E Spectrum Analyzer using Ω ...
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... The Video Analyzer measures the ratio between the amplitude of the active area of the video signal (700 mV) and the noise level in Vrms on a video black level which is shown below. VideoS/N is calculated log(700 /N) in dB. Unweighted Video Signal to Noise Same as above. 3rd harmonic 2Fo 3Fo . Fo*3/4 Fo Fo*3/2 N noise level in Vrms MC44CC375AV 9 ...
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... Video Analyzer. No audio signal Video: 10 step grey scale No video signal No audio signal MC44CC375AV 10 Measurement Set-Up Video Differential Phase 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 ...
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... TV set. In this mode the Nyquist filter is bypassed and the video carrier is used without added delay to effectuate intercarrier conversion. In this mode the phase noise information fully cancels out and the true S/N can be measured ASN supplied by the Audio Analyzer, rms ) ⁄ ( Noise Distorsion + Noise + Signal × ⁄ log Signal + Noise Noise MC44CC375AV ) 11 ...
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... Pin 1: CHS V DD1 Pin 3: SOC Pin 4: XTAL V CC Pin 5: PREEM 11. 50k Pin 6: AUDIO V CC Pin 7: SPLFLT MC44CC375AV 12 PIN CIRCUIT SCHEMATICS Pin 8: VIDEO Pin 11: RFOUT Pin 14: PLLFLT Pin 15: AUX 10k audio Pin 16: PSAVE Figure 3. Pin Schematics V CC 500 10K 10K V DD ...
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... Figure 4. Digital Home Freescale Semiconductor APPLICATION SCHEMATIC MC44CC375AV Application Schematic 2 MC44CC375AV 13 ...
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... MC44CC375AV 14 PACKAGE DIMENSIONS Figure 5. SOIC16 Package Dimensions Digital Home Freescale Semiconductor ...
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... Digital Home Freescale Semiconductor PACKAGE DIMENSIONS Figure 6. SOIC16 Package Dimensions - part 2 MC44CC375AV 15 ...
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... For further information, see http:/www.freescale.com or contact your Freescale sales representative. For information on Freescale’s Environmental Products program http://www.freescale.com/epp. Document Number: MC44CC375AV Rev. 1 11/2008 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products ...