MC12430 Freescale Semiconductor, Inc, MC12430 Datasheet
MC12430
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MC12430 Summary of contents
Page 1
... MOTOROLA SEMICONDUCTOR TECHNICAL DATA High Frequency Clock Synthesizer The MC12430 is a general purpose synthesized clock source. Its internal VCO will operate over a range of frequencies from 400 to 800 MHz. The differential PECL output can be configured to be the VCO frequency divided With the output configured to divide the VCO frequency by 2, and with a 16 ...
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... MC12430 28–Lead PLCC Figure 1. Figure 1. 28–Lead Pinout (Top View) Figure 2. Figure 2. 32–Lead Pinout (Top 2 N[1: Input XTAL_SEL FREF_EXT OE Disabled 32–Lead LQFP View) Output Division XTAL Enabled MOTOROLA ...
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... Pullup) LVCMOS/CMOS input that selects between the crystal and the FREF_EXT source for the PLL reference signal. A HIGH selects the crystal input. MOTOROLA Function ≈ 85 mA. ). Current drain through PLL_V ). Current drain through PLL_V CC CC MC12430 OUT ≈ ...
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... MC12430 Figure 3. MC12430 Block Diagram (28–Lead PLCC Pinout) Programming the device amounts to properly configuring the internal dividers to produce the desired frequency at the outputs. The output frequency can by represented by this formula: ÷ 16 ÷ N FOUT = (F XTAL Where F is the crystal frequency the loop divider XTAL modulus, and N is the output divider modulus ...
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... However, the PLL bypass mode may be of interest at the board level for functional debug. When T[2:0] is set to 110 the MC12430 is placed in PLL bypass mode. In this mode the S_CLOCK input is fed directly into the M and N dividers. The N divider drives the FOUT differential pair and the M counter drives the TEST output pin ...
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... MC12430 • • = 3.3V ±5%) DC CHARACTERISTICS (V CC Symbol Characteristic V Input HIGH Voltage IH V Input LOW Voltage IL I Input Current IN V Output HIGH Voltage OH V Output LOW Voltage Output HIGH Voltage FOUT, FOUT 2. Output LOW Voltage FOUT, FOUT 1. Power Supply Current ...
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... As the oscillator is somewhat sensitive to loading on its inputs the user is advised to mount the crystal as close to the MC12430 as possible to avoid any board level parasitics. To facilitate co–location surface mount crystals are recommended, but not required. ...
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... The simplest form of isolation is a power supply filter on the PLL_VCC pin for the MC12430. Figure 6 illustrates a typical power supply filter scheme. The MC12430 is most susceptible to noise with spectral content in the 1KHz to 1MHz range ...
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... ECL receivers require only a few hundred millivolt input swings for reliable operation result, the output generated by the 12430 will, under all conditions, be sufficient for clocking standard ECL devices. Note that if a larger swing is required the MC12430 could drive a clock fanout buffer like the MC100EP111. MC12430 9 ...
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... MC12430 –N – –L –M – – OUTLINE DIMENSIONS FN SUFFIX PLASTIC PLCC PACKAGE CASE 776–02 ISSUE BRK VIEW D–D K SEATING –T J PLANE – VIEW S VIEW S INCHES DIM MIN MAX ...
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... OUTLINE DIMENSIONS FA SUFFIX PLASTIC LQFP PACKAGE CASE 873A–02 ISSUE A 4X –U– DETAIL AD BASE METAL N É É É É É É J SECTION AE–AE Q_ MC12430 AE AE DETAIL Y MILLIMETERS INCHES DIM MIN MAX MIN MAX ...
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... JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3–20–1, Minami–Azabu. Minato–ku, Tokyo 106–8573 Japan. 81–3–3440–3569 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. 852–26668334 Technical Information Center: 1–800–521–6274 HOME PAGE: http://www.motorola.com/semiconductors/ ◊ 12 are registered trademarks of Motorola, Inc. Motorola, Inc Equal MC12430/D MOTOROLA ...