mc44144 Freescale Semiconductor, Inc, mc44144 Datasheet
mc44144
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mc44144 Summary of contents
Page 1
... Subcarrier Phase-Locked Loop The MC44144 is a gated phase–locked loop intended for, but not restricted to, video applications. The integrated circuit contains a gated phase detector, voltage controlled crystal oscillator, divide–by–4 circuitry, and a video clamp. This device provides a 4X reference frequency output, and a 1X reference frequency output. The MC44144 is manufactured using Motorola’ ...
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... The gain must be estimated from the 14.314 operating point. KO PAL is the gain for PAL applications and KO NTSC is the gain for NTSC applications. 14.312 –1.0 0 1.0 2.0 3.0 VCO CONTROL VOLTAGE (PIN 3 VOLTAGE) (V) 2 MC44144 Symbol Value Unit V CC 6.0 Vdc + stg – +150 C ...
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... Hz change in oscillator free–run or input reference frequency. In addition to providing the gate pulse for the MC44144 phase detector, the Burst Gate input also initiates a clamp pulse that sets up the level of the composite video at the input to the Phase Detector ...
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... Composite Chroma can also be applied) Burst Gate 7 Input MC44144 PIN FUNCTION DESCRIPTION Description Subcarrier Output. A phase–locked reference of the PAL or NTSC color burst is output at this pin. Circuit Ground The error current from the phase detector is output at this 1.0k 31k pin ...
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... Linear and TTL Output Buffers The output buffers of the MC44144 are not designed to any specific logic family desired, Linear or TTL buffers can be added externally. Figure 3 shows an example Subcarrier 1000 F Output or 1X Subcarrier Output R 2 1.8k 4X Subcarrier 0.01 F Output or 1X Subcarrier ...
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... M T –A – –B P – SEATING –T PLANE K – 0.25 (0.010 MC44144 OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 626– SUFFIX PLASTIC PACKAGE CASE 751–03 (SO–8) 0.25 (0.010 ...
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... Motorola was negligent regarding the design or manufacture of the part. Motorola and Opportunity/Affirmative Action Employer. MOTOROLA ANALOG IC DEVICE DATA MC44144 are registered trademarks of Motorola, Inc. Motorola, Inc Equal 7 ...
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... JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 *MC44144/D* MOTOROLA ANALOG IC DEVICE DATA MC44144/D ...