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TSA5521M/C4 データシートの表示(PDF) - Philips Electronics

部品番号TSA5521M/C4 Philips
Philips Electronics Philips
コンポーネント説明1.3 GHz universal bus-controlled TV synthesizer; 3-wire


TSA5521M/C4 Datasheet PDF : 24 Pages
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Philips Semiconductors
1.3 GHz universal bus-controlled
TV synthesizer
Product specification
TSA5520; TSA5521
Table 15 27-bit sequence (fosc = 750 MHz, BS1 = ON, N = 640, Icp = 60 µA, no test function)
000101110101001100010001000
The reference divider is automatically set to 1024 unless RSB has been programmed to 0 during a 27-bit sequence.
This sequence sets RSA = RSB = 0; CP = 0.
Table 16 19-bit sequence
0001010111011100000
This sequence will program fosc to 600 MHz in 50 kHz steps. ICP remains at 60 µA.
Table 17 18-bit sequence
000110111011100000
This sequence will program fosc to 600 MHz in 50 kHz steps. ICP remains at 60 µA.
Table 18 27-bit sequence (fosc = 650 MHz, BS1 = ON)
000110100010100000011001010
This sequence sets RSA to 0, RSB to 1 and CP to 1. After this sequence ICP = 280 µA, N = 1024 (19-bit transmission)
and N = 512 (18-bit transmission), RSB = 1.
Example of 3-wire bus sequence (TSA5521; SW = OPEN)
Table 19 19-bit sequence (fosc = 700 MHz, BS3 = ON)
0100011011010110000
N = 640 unless RSB has been programmed to 0 during a 27-bit sequence.
1996 Oct 10
17
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The device is a single-chip PLL frequency synthesizer designed for TV and VCR tuning systems.

The circuit consists of a divide-by-eight prescaler with its own preamplifier, a 15-bit programmable divider, a crystal oscillator and its programmable reference divider and a phase/frequency detector combined with a charge-pump which drives the tuning amplifier and the 33 V output.

Four high-current PNP band switch buffers are provided for band switching. Two PNP buffers can be switched on simultaneously. The sum of the collector currents is limited to 50 mA.

 

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